AP EAPCET 2026 Engineering Question Paper for May 12 Shift 1 is available for download here. JNTUK on behalf of APSCHE conducted AP EAPCET 2026 Engineering exam on May 12 in Shift 1 from 9 AM to 12 PM. AP EAPCET 2026 Engineering consists of 160 questions for a total of 160 marks to be attempted in 3 hours.

  • AP EAPCET 2026 Engineering is divided into 3 sections- Mathematics with 80 questions and Physics and Chemistry with 40 questions each.
  • Each correct answer carries 1 mark and there is no negative marking for incorrect answer.

Also Check: AP EAPCET 2026 Engineering Question Paper May 13 Shift 1

AP EAPCET 2026 Engineering Question Paper PDF for May 12 Shift 1

AP EAPCET 2026 Engineering Question Paper May 12 Shift 1 Download PDF Check Solutions


Question 1:

If \(f : [1, \infty) \to [1, \infty)\) is defined by \(f(x) = 2^{x(x-1)}\), then \(f^{-1}(x) =\)

  • (A) \(\frac{1}{2} [1 + \sqrt{1 + 4 \log_2 x}]\)
  • (B) \(\frac{1}{2} [1 - \sqrt{1 + 4 \log_2 x}]\)
  • (C) \(\frac{1}{2} [1 + \sqrt{1 - 4 \log_2 x}]\)
  • (D) \(\frac{1}{2} [1 - \sqrt{1 - 4 \log_2 x}]\)

Question 2:

The domain of the function \(f(x) = \sqrt{\log_{10} \left(\frac{5x - x^2}{4}\right)}\) is:

  • (A) \([1, 4]\)
  • (B) \((1, 4)\)
  • (C) \([0, 5]\)
  • (D) \((0, 5)\)

Question 3:

If \(a_n = \sum_{r=0}^n \frac{1}{^{n}C_r}\) and \(b_n = \sum_{r=0}^n \frac{r}{^{n}C_r}\), then \(\frac{b_n}{a_n} =\)

  • (A) \(n\)
  • (B) \(\frac{n}{2}\)
  • (C) \(\frac{n}{3}\)
  • (D) \(n - 1\)

Question 4:

If \([x]\) denotes the greatest integer less than or equal to \(x\), then the value of \(\sum_{r=1}^{100} \left[ \frac{r}{5} \right]\) is:

  • (A) \(980\)
  • (B) \(950\)
  • (C) \(960\)
  • (D) \(970\)

Question 5:

If the system of linear equations \(x + y + z = 1\), \(x + 2y + 4z = \eta\), \(x + 4y + 10z = \eta^2\) has a solution, then the value of \(\eta\) is:

  • (A) \(1\) or \(2\)
  • (B) \(1\) or \(-2\)
  • (C) \(2\) or \(-2\)
  • (D) \(1\) or \(3\)

Question 6:

If \(A = \begin{pmatrix} 1 & 2
3 & 4 \end{pmatrix}\), then \(A^2 - 5A - 2I =\)

  • (A) \(O\)
  • (B) \(I\)
  • (C) \(A\)
  • (D) \(2A\)

Question 7:

If the conjugate of a complex number \(z\) is \(\frac{1}{z - i}\), then \(z\) can be:

  • (A) \(i\left(\frac{1+\sqrt{5}}{2}\right)\)
  • (B) \(i\left(\frac{1-\sqrt{5}}{2}\right)\)
  • (C) \(\frac{1+i\sqrt{5}}{2}\)
  • (D) \(\frac{1-i\sqrt{5}}{2}\)

Question 8:

If \(z = \frac{\sqrt{3} + i}{2}\), then \(z^{101} + z^{103} =\)

  • (A) \(-\sqrt{3}\)
  • (B) \(\sqrt{3}\)
  • (C) \(-i\sqrt{3}\)
  • (D) \(i\sqrt{3}\)

Question 9:

If the roots of the quadratic equation \(x^2 - 2px + q^2 = 0\) are real and distinct, then:

  • (A) \(|p| > |q|\)
  • (B) \(|p| < |q|\)
  • (C) \(p^2 \ge q^2\)
  • (D) \(p^2 \le q^2\)

Question 10:

If \(\alpha, \beta\) are the roots of the quadratic equation \(x^2 - 2x + 4 = 0\), then the value of \(\alpha^n + \beta^n\) is:

  • (A) \(2^{n+1} \cos\left(\frac{n\pi}{3}\right)\)
  • (B) \(2^{n+1} \sin\left(\frac{n\pi}{3}\right)\)
  • (C) \(2^n \cos\left(\frac{n\pi}{3}\right)\)
  • (D) \(2^n \sin\left(\frac{n\pi}{3}\right)\)

Question 11:

If the roots of the equation \(x^3 - 7x^2 + 14x - 8 = 0\) are in geometric progression, then the common ratio can be:

  • (A) 1
  • (B) 2
  • (C) 3
  • (D) 4

Question 12:

If the number of permutations of \(n\) different things taken all at a time is \(5040\), then \(n =\)

  • (A) 5
  • (B) 6
  • (C) 7
  • (D) 8

Question 13:

If \(^{n}C_{12} = ^{n}C_{8}\), then \(^{n}C_{17} =\)

  • (A) 1140
  • (B) 1150
  • (C) 1160
  • (D) 1170

Question 14:

The number of terms in the expansion of \((x + y + z)^{10}\) is:

  • (A) 55
  • (B) 66
  • (C) 45
  • (D) 78

Question 15:

If \(\frac{3x + 4}{(x-1)(x-2)^2} = \frac{A}{x-1} + \frac{B}{x-2} + \frac{C}{(x-2)^2}\), then \(A + B + C =\)

  • (A) 10
  • (B) 20
  • (C) 17
  • (D) 14

Question 16:

If \(\sin \theta + \cos \theta = \sqrt{2} \cos \theta\), then \(\cos \theta - \sin \theta =\)

  • (A) \(\sqrt{2} \sin \theta\)
  • (B) \(-\sqrt{2} \sin \theta\)
  • (C) \(\sqrt{2} \cos \theta\)
  • (D) \(-\sqrt{2} \cos \theta\)

Question 17:

The maximum value of \(3 \sin x + 4 \cos x + 5\) is:

  • (A) 5
  • (B) 10
  • (C) 12
  • (D) 15

Question 18:

If \(\tan^{-1}(x) + \tan^{-1}(y) + \tan^{-1}(z) = \frac{\pi}{2}\), then \(xy + yz + zx =\)

  • (A) 0
  • (B) 1
  • (C) -1
  • (D) \(xyz\)

Question 19:

If \(\sinh x = \frac{3}{4}\), then \(\cosh 2x =\)

  • (A) \(\frac{17}{8}\)
  • (B) \(\frac{15}{8}\)
  • (C) \(\frac{9}{8}\)
  • (D) \(\frac{25}{8}\)

Question 20:

In a triangle \(ABC\), if \(a = 13\), \(b = 14\), \(c = 15\), then the area of the triangle is:

  • (A) 84
  • (B) 48
  • (C) 36
  • (D) 96

Question 21:

If \(\vec{a} = 2\vec{i} + 3\vec{j} - \vec{k}\), \(\vec{b} = -\vec{i} + 2\vec{j} - 4\vec{k}\) and \(\vec{c} = \vec{i} + \vec{j} + \vec{k}\), then \((\vec{a} \times \vec{b}) \cdot (\vec{a} \times \vec{c}) =\)

  • (A) \(-74\)
  • (B) \(74\)
  • (C) \(-42\)
  • (D) \(42\)

Question 22:

Let \(\vec{a}\) and \(\vec{b}\) be two unit vectors. If the angle between them is \(\theta\), then \(\cos(\theta/2) =\)

  • (A) \(\frac{1}{2}|\vec{a} + \vec{b}|\)
  • (B) \(\frac{1}{2}|\vec{a} - \vec{b}|\)
  • (C) \(|\vec{a} + \vec{b}|\)
  • (D) \(|\vec{a} - \vec{b}|\)

Question 23:

If \(\vec{a} = \vec{i} + \vec{j} + \vec{k}\), \(\vec{b} = 4\vec{i} + 3\vec{j} + 4\vec{k}\) and \(\vec{c} = \vec{i} + \alpha\vec{j} + \beta\vec{k}\) are linearly dependent vectors and \(|\vec{c}| = \sqrt{3}\), then:

  • (A) \(\alpha = 1, \beta = -1\)
  • (B) \(\alpha = 1, \beta = 1\)
  • (C) \(\alpha = -1, \beta = -1\)
  • (D) \(\alpha = 2, \beta = 1\)

Question 24:

The variance of the first \(n\) even natural numbers is:

  • (A) \(\frac{n^2 - 1}{12}\)
  • (B) \(\frac{n^2 - 1}{3}\)
  • (C) \(\frac{n^2 + 1}{3}\)
  • (D) \(\frac{n^2 - 1}{4}\)

Question 25:

If the mean deviation of the numbers \(1, 1+d, 1+2d, \dots, 1+100d\) from their mean is 255, then \(d =\)

  • (A) 10.1
  • (B) 10
  • (C) 5.05
  • (D) 5.1

Question 26:

A bag contains 5 red and 4 black balls. Three balls are drawn at random from the bag. The probability that two of them are red and one is black is:

  • (A) \(\frac{5}{21}\)
  • (B) \(\frac{10}{21}\)
  • (C) \(\frac{5}{14}\)
  • (D) \(\frac{25}{84}\)

Question 27:

If \(A\) and \(B\) are two events such that \(P(A) = 0.4\), \(P(B) = 0.8\) and \(P(B|A) = 0.6\), then \(P(\bar{A} \cap B) =\)

  • (A) 0.56
  • (B) 0.24
  • (C) 0.16
  • (D) 0.32

Question 28:

Three houses are available in a locality. Three persons apply for the houses. Each applies for one house without consulting others. The probability that all three apply for the same house is:

  • (A) \(\frac{2}{9}\)
  • (B) \(\frac{1}{9}\)
  • (C) \(\frac{4}{9}\)
  • (D) \(\frac{1}{27}\)

Question 29:

A random variable \(X\) has the following probability distribution:
\(X = x\): 0, 1, 2, 3, 4, 5
\(P(X=x)\): \(k\), \(3k\), \(5k\), \(7k\), \(9k\), \(11k\)

Then the value of \(k\) is:

  • (A) \(\frac{1}{36}\)
  • (B) \(\frac{1}{18}\)
  • (C) \(\frac{1}{12}\)
  • (D) \(\frac{1}{6}\)

Question 30:

In a binomial distribution, the mean is 4 and the variance is 3. Then the number of trials \(n\) is:

  • (A) 8
  • (B) 12
  • (C) 16
  • (D) 20

Question 31:

When the origin is shifted to \((2, 3)\) by translation of axes, the coordinates of a point \(P\) become \((1, -2)\). The original coordinates of \(P\) are:

  • (A) \((3, 1)\)
  • (B) \((1, 5)\)
  • (C) \((3, -5)\)
  • (D) \((-1, 5)\)

Question 32:

If the straight lines \(x + 2y - 9 = 0\), \(3x + 5y - 5 = 0\) and \(ax + by - 1 = 0\) are concurrent, then the straight line \(22x - 35y = 1\) passes through the point:

  • (A) \((a, b)\)
  • (B) \((b, a)\)
  • (C) \((-a, -b)\)
  • (D) \((-b, -a)\)

Question 33:

The distance between the parallel lines \(5x + 12y - 3 = 0\) and \(5x + 12y + 10 = 0\) is:

  • (A) \(1\)
  • (B) \(2\)
  • (C) \(\frac{13}{17}\)
  • (D) \(\frac{7}{13}\)

Question 34:

If the angle between the pair of lines \(x^2 - 2cxy - 7y^2 = 0\) is \(\frac{\pi}{3}\), then the value of \(c^2\) is:

  • (A) \(20\)
  • (B) \(10\)
  • (C) \(5\)
  • (D) \(15\)

Question 35:

If the lines joining the origin to the points of intersection of the line \(y = mx + 1\) and the circle \(x^2 + y^2 = 1\) are perpendicular to each other, then the value of \(m^2\) is:

  • (A) \(1\)
  • (B) \(2\)
  • (C) \(0\)
  • (D) \(3\)

Question 36:

If the circle \(x^2 + y^2 + 2gx + 2fy + c = 0\) passes through the origin, has radius 3, and its center lies on the line \(x + y = 4\), then \(g + f =\)

  • (A) \(-4\)
  • (B) \(4\)
  • (C) \(-2\)
  • (D) \(2\)

Question 37:

If the circle \(x^2 + y^2 - 4x - 6y + \lambda = 0\) touches the x-axis, then the value of \(\lambda\) is:

  • (A) \(4\)
  • (B) \(9\)
  • (C) \(13\)
  • (D) \(16\)

Question 38:

The equation of the common chord of the circles \(x^2 + y^2 - 4x - 4y = 0\) and \(x^2 + y^2 - 6x - 8y + 10 = 0\) is:

  • (A) \(x + 2y - 5 = 0\)
  • (B) \(2x + y - 5 = 0\)
  • (C) \(x - 2y + 5 = 0\)
  • (D) \(2x - y + 5 = 0\)

Question 39:

If the circle \(x^2 + y^2 + 2x - 2y + c = 0\) cuts the circle \(x^2 + y^2 - 4x - 6y + 11 = 0\) orthogonally, then the value of \(c\) is:

  • (A) \(-9\)
  • (B) \(9\)
  • (C) \(-13\)
  • (D) \(13\)

Question 40:

The equation of the parabola with focus at \((3, 0)\) and directrix \(x + 3 = 0\) is:

  • (A) \(y^2 = 12x\)
  • (B) \(y^2 = -12x\)
  • (C) \(x^2 = 12y\)
  • (D) \(x^2 = -12y\)

Question 41:

If the distance between the foci of an ellipse is 6 and the distance between its directrices is 12, then the length of its latus rectum is:

  • (A) \(3\sqrt{2}\)
  • (B) \(\sqrt{2}\)
  • (C) \(2\sqrt{2}\)
  • (D) \(4\sqrt{2}\)

Question 42:

The line \(y = mx + c\) touches the ellipse \(9x^2 + 16y^2 = 144\) if the value of \(c^2\) is:

  • (A) \(16m^2 + 9\)
  • (B) \(9m^2 + 16\)
  • (C) \(16m^2 - 9\)
  • (D) \(9m^2 - 16\)

Question 43:

If the eccentricity of a hyperbola is \(\sqrt{3}\), then the eccentricity of its conjugate hyperbola is:

  • (A) \(\sqrt{\frac{3}{2}}\)
  • (B) \(\sqrt{3}\)
  • (C) \(\frac{\sqrt{3}}{2}\)
  • (D) \(\sqrt{2}\)

Question 44:

The ratio in which the \(xy\)-plane divides the line segment joining the points \((2, 4, 5)\) and \((3, 5, -4)\) is:

  • (A) \(5 : 4\) internally
  • (B) \(5 : 4\) externally
  • (C) \(4 : 5\) internally
  • (D) \(4 : 5\) externally

Question 45:

If a line makes angles \(45^\circ\) and \(60^\circ\) with the positive \(x\) and \(y\) axes respectively, then the acute angle it makes with the \(z\)-axis is:

  • (A) \(60^\circ\)
  • (B) \(30^\circ\)
  • (C) \(45^\circ\)
  • (D) \(90^\circ\)

Question 46:

The acute angle between the planes \(2x - y + z = 6\) and \(x + y + 2z = 3\) is:

  • (A) \(\frac{\pi}{3}\)
  • (B) \(\frac{\pi}{4}\)
  • (C) \(\frac{\pi}{6}\)
  • (D) \(\frac{\pi}{2}\)

Question 47:

The value of \(\lim_{x \to \infty} \left(\frac{x+6}{x+1}\right)^{x+4}\) is:

  • (A) \(e^5\)
  • (B) \(e^6\)
  • (C) \(e\)
  • (D) \(e^4\)

Question 48:

If \(f(x) = \frac{k \cos x}{\pi - 2x}\) for \(x \neq \frac{\pi}{2}\) and \(f\left(\frac{\pi}{2}\right) = 3\) is continuous at \(x = \frac{\pi}{2}\), then the value of \(k\) is:

  • (A) \(6\)
  • (B) \(3\)
  • (C) \(2\)
  • (D) \(1.5\)

Question 49:

If \(y = \tan^{-1}\left(\frac{\sin x + \cos x}{\cos x - \sin x}\right)\), then \(\frac{dy}{dx} = \)

  • (A) \(1\)
  • (B) \(-1\)
  • (C) \(\frac{1}{2}\)
  • (D) \(0\)

Question 50:

If \(x = a \cos^3 t\) and \(y = a \sin^3 t\), then the value of \(\frac{dy}{dx}\) at \(t = \frac{\pi}{4}\) is:

  • (A) \(-1\)
  • (B) \(1\)
  • (C) \(-\sqrt{3}\)
  • (D) \(\frac{1}{\sqrt{3}}\)

Question 51:

If \(y = e^{a \sin^{-1} x}\), then \((1 - x^2) y_2 - x y_1 =\)

  • (A) \(a^2 y\)
  • (B) \(-a^2 y\)
  • (C) \(a y\)
  • (D) \(-a y\)

Question 52:

The slope of the normal to the curve \(y = 2x^2 + 3\sin x\) at \(x = 0\) is:

  • (A) \(-\frac{1}{3}\)
  • (B) \(\frac{1}{3}\)
  • (C) \(-3\)
  • (D) \(3\)

Question 53:

A balloon, which always remains spherical, has a variable radius. The rate at which its volume is increasing with respect to its radius \(r\) when \(r = 5\) cm is:

  • (A) \(100\pi\)
  • (B) \(50\pi\)
  • (C) \(25\pi\)
  • (D) \(10\pi\)

Question 54:

The minimum value of the function \(f(x) = x^2 + \frac{250}{x}\) for \(x > 0\) is:

  • (A) \(75\)
  • (B) \(50\)
  • (C) \(25\)
  • (D) \(100\)

Question 55:

The integral \(\int \frac{1}{\cos^2 x (1 - \tan x)^2} \, dx =\)

  • (A) \(\frac{1}{1 - \tan x} + C\)
  • (B) \(-\frac{1}{1 - \tan x} + C\)
  • (C) \(\frac{1}{(1 - \tan x)^2} + C\)
  • (D) \(-\frac{1}{(1 - \tan x)^2} + C\)

Question 56:

The integral \(\int \frac{e^x (1 + x)}{\cos^2(x e^x)} \, dx =\)

  • (A) \(\tan(x e^x) + C\)
  • (B) \(-\tan(x e^x) + C\)
  • (C) \(\cot(x e^x) + C\)
  • (D) \(-\cot(x e^x) + C\)

Question 57:

The value of the definite integral \(\int_0^{\pi/2} \frac{\sin^{3/2} x}{\sin^{3/2} x + \cos^{3/2} x} \, dx\) is:

  • (A) \(\frac{\pi}{4}\)
  • (B) \(\frac{\pi}{2}\)
  • (C) \(\pi\)
  • (D) \(0\)

Question 58:

The value of the definite integral \(\int_{-\pi/2}^{\pi/2} (x^3 + x\cos x + \tan^5 x + 1) \, dx\) is:

  • (A) \(\pi\)
  • (B) \(\frac{\pi}{2}\)
  • (C) \(0\)
  • (D) \(2\pi\)

Question 59:

The area (in square units) of the region bounded by the parabola \(y^2 = 4x\) and the line \(y = 2x\) is:

  • (A) \(\frac{1}{3}\)
  • (B) \(\frac{1}{6}\)
  • (C) \(\frac{2}{3}\)
  • (D) \(\frac{4}{3}\)

Question 60:

The order and degree of the differential equation \(\left[1 + \left(\frac{dy}{dx}\right)^2\right]^{3/2} = \frac{d^2y}{dx^2}\) are respectively:

  • (A) \(2\) and \(2\)
  • (B) \(2\) and \(3\)
  • (C) \(1\) and \(2\)
  • (D) \(2\) and \(1\)

Question 61:

The general solution of the differential equation \(\frac{dy}{dx} + y \cot x = 2 \cos x\) is:

  • (A) \(y \sin x = -\frac{1}{2} \cos 2x + C\)
  • (B) \(y \sin x = \frac{1}{2} \cos 2x + C\)
  • (C) \(y \sin x = -\cos 2x + C\)
  • (D) \(y \sin x = \sin 2x + C\)

Question 62:

The integrating factor of the differential equation \((1 + x^2) \frac{dy}{dx} + 2xy = \cos x\) is:

  • (A) \(e^{x^2}\)
  • (B) \(1 + x^2\)
  • (C) \(\ln(1 + x^2)\)
  • (D) \(\frac{1}{1 + x^2}\)

Question 63:

The foot of the perpendicular from the point \((1, 3)\) to the line \(x + y - 2 = 0\) is:

  • (A) \((0, 2)\)
  • (B) \((1, 1)\)
  • (C) \((2, 0)\)
  • (D) \((-1, 3)\)

Question 64:

The length of the tangent from the point \((3, 4)\) to the circle \(x^2 + y^2 - 2x - 4y + 1 = 0\) is:

  • (A) \(2\)
  • (B) \(4\)
  • (C) \(\sqrt{2}\)
  • (D) \(3\)

Question 65:

The number of solutions of the trigonometric equation \(\sin^2 x - \sin x - 2 = 0\) in the interval \([0, 2\pi]\) is:

  • (A) \(1\)
  • (B) \(2\)
  • (C) \(3\)
  • (D) \(0\)

Question 66:

If \(\vec{a}\), \(\vec{b}\), and \(\vec{c}\) are three unit vectors such that \(\vec{a} + \vec{b} + \vec{c} = \vec{0}\), then the value of \(\vec{a} \cdot \vec{b} + \vec{b} \cdot \vec{c} + \vec{c} \cdot \vec{a}\) is:

  • (A) \(-\frac{3}{2}\)
  • (B) \(\frac{3}{2}\)
  • (C) \(0\)
  • (D) \(-3\)

Question 67:

If the sum of two roots of the cubic equation \(x^3 - 5x^2 - 2x + 24 = 0\) is \(2\), then the roots of the equation are:

  • (A) \(-2, 3, 4\)
  • (B) \(2, 3, 0\)
  • (C) \(-1, 3, 3\)
  • (D) \(-2, -3, -4\)

Question 68:

If \(A = \begin{pmatrix} 1 & 2
3 & 4 \end{pmatrix}\), then \(A^{-1} =\)

  • (A) \(-\frac{1}{2} \begin{pmatrix} 4 & -2
    -3 & 1 \end{pmatrix}\)
  • (B) \(\frac{1}{2} \begin{pmatrix} 4 & -2
    -3 & 1 \end{pmatrix}\)
  • (C) \(-\frac{1}{2} \begin{pmatrix} 1 & -2
    -3 & 4 \end{pmatrix}\)
  • (D) \(\frac{1}{2} \begin{pmatrix} 1 & -2
    -3 & 4 \end{pmatrix}\)

Question 69:

The number of ways of arranging the letters of the word "EAPCET" is:

  • (A) \(360\)
  • (B) \(720\)
  • (C) \(180\)
  • (D) \(120\)

Question 70:

If \(\omega\) is a complex cube root of unity, then \((1 - \omega + \omega^2)^5 + (1 + \omega - \omega^2)^5 =\)

  • (A) \(32\)
  • (B) \(-32\)
  • (C) \(64\)
  • (D) \(-64\)

Question 71:

If the probability that a person suffers a bad reaction from an injection is \(0.001\), then the probability that out of \(2000\) individuals, exactly \(3\) will suffer a bad reaction is:

  • (A) \(\frac{4}{3} e^{-2}\)
  • (B) \(4 e^{-2}\)
  • (C) \(\frac{1}{3} e^{-2}\)
  • (D) \(2 e^{-2}\)

Question 72:

The distance of the point \((1, 2)\) from the line \(3x + 4y - 32 = 0\) measured parallel to the line \(x - y = 0\) is:

  • (A) \(3\sqrt{2}\)
  • (B) \(2\sqrt{2}\)
  • (C) \(\sqrt{2}\)
  • (D) \(5\sqrt{2}\)

Question 73:

The length of the intercept made by the circle \(x^2 + y^2 - 10x + 4y + 9 = 0\) on the x-axis is:

  • (A) \(8\)
  • (B) \(6\)
  • (C) \(10\)
  • (D) \(12\)

Question 74:

The equation of the tangent to the parabola \(y^2 = 8x\) which is parallel to the line \(2x - y + 5 = 0\) is:

  • (A) \(2x - y + 1 = 0\)
  • (B) \(2x - y - 1 = 0\)
  • (C) \(2x - y + 2 = 0\)
  • (D) \(2x - y - 2 = 0\)

Question 75:

The value of the limit \(\lim_{x \to 0} \frac{e^{3x} - e^{-2x}}{\sin 4x}\) is:

  • (A) \(\frac{5}{4}\)
  • (B) \(\frac{1}{4}\)
  • (C) \(\frac{3}{4}\)
  • (D) \(\frac{1}{2}\)

Question 76:

If \(y = \sqrt{\tan x + \sqrt{\tan x + \sqrt{\tan x + \dots \infty}}}\), then \((2y - 1)\frac{dy}{dx} =\)

  • (A) \(\sec^2 x\)
  • (B) \(-\sec^2 x\)
  • (C) \(\tan x\)
  • (D) \(\sec x \tan x\)

Question 77:

The integral \(\int \frac{dx}{x(x^4 + 1)} =\)

  • (A) \(\frac{1}{4} \ln \left| \frac{x^4}{x^4 + 1} \right| + C\)
  • (B) \(\frac{1}{4} \ln \left| \frac{x^4 + 1}{x^4} \right| + C\)
  • (C) \(\ln \left| \frac{x^4}{x^4 + 1} \right| + C\)
  • (D) \(\ln \left| \frac{x^4 + 1}{x^4} \right| + C\)

Question 78:

The value of the definite integral \(\int_0^{\pi/2} \ln(\tan x) \, dx\) is:

  • (A) \(0\)
  • (B) \(\frac{\pi}{2}\)
  • (C) \(\pi\)
  • (D) \(\ln 2\)

Question 79:

The solution of the differential equation \(x \frac{dy}{dx} + 2y = x^2\) is:

  • (A) \(y x^2 = \frac{x^4}{4} + C\)
  • (B) \(y x = \frac{x^3}{3} + C\)
  • (C) \(y x^2 = \frac{x^3}{3} + C\)
  • (D) \(y x = \frac{x^4}{4} + C\)

Question 80:

If the dimensional formula of a physical quantity is \([M^1 L^2 T^{-2}]\), then the quantity is:


 

  • (A) Force
  • (B) Work
  • (C) Power
  • (D) Momentum

Question 81:

A projectile is launched from the ground with an initial velocity \(v\) at an angle \(\theta\) to the horizontal. If its horizontal range is equal to its maximum height, then the value of \(\tan \theta\) is:

  • (A) \(4\)
  • (B) \(2\)
  • (C) \(1\)
  • (D) \(\frac{1}{4}\)

Question 82:

A lift of mass \(M\) is accelerating upwards with an acceleration \(a\). If the tension in the supporting cable is \(T_1\) during upward acceleration and \(T_2\) when it accelerates downwards with the same acceleration \(a\), then the ratio \(T_1 / T_2\) is:

  • (A) \(\frac{g+a}{g-a}\)
  • (B) \(\frac{g-a}{g+a}\)
  • (C) \(\frac{g^2+a^2}{g^2-a^2}\)
  • (D) \(1\)

Question 83:

An engine pumps water continuously through a hose pipe. If the water leaves the pipe with velocity \(v\) and \(m\) is the mass per unit length of the water in the pipe, then the rate at which kinetic energy is imparted to the water is:

  • (A) \(\frac{1}{2} m v^3\)
  • (B) \(\frac{1}{2} m v^2\)
  • (C) \(m v^3\)
  • (D) \(\frac{3}{2} m v^2\)

Question 84:

A thin circular ring of mass \(M\) and radius \(R\) is rotating about its central axis with a constant angular velocity \(\omega\). Two objects, each of mass \(m\), are gently attached to the opposite ends of a diameter of the ring. The new angular velocity of the ring is:


 

  • (A) \(\frac{M \omega}{M + 2m}\)
  • (B) \(\frac{(M + 2m)\omega}{M}\)
  • (C) \(\frac{M \omega}{M + m}\)
  • (D) \(\frac{(M - 2m)\omega}{M + 2m}\)

Question 85:

The time period of a simple pendulum is \(T\) in air. When the bob is completely immersed in a non-viscous liquid of density \(\rho / 10\) (where \(\rho\) is the density of the bob), the new time period of oscillation is:


 

  • (A) \(T \sqrt{\frac{10}{9}}\)
  • (B) \(T \sqrt{\frac{9}{10}}\)
  • (C) \(T \sqrt{\frac{10}{11}}\)
  • (D) \(T \sqrt{\frac{11}{10}}\)

Question 86:

The acceleration due to gravity at a height \(h\) above the Earth's surface is the same as that at a depth \(d\) below the surface. If both \(h\) and \(d\) are much smaller than the radius of Earth \(R\), then the relation between \(h\) and \(d\) is:

  • (A) \(d = 2h\)
  • (B) \(h = 2d\)
  • (C) \(d = h\)
  • (D) \(d = 4h\)

Question 87:

Two copper wires of length \(L\) and \(2L\) have radii \(r\) and \(2r\) respectively. If they are subjected to the same tension force, the ratio of their extension (\(\Delta L_1 / \Delta L_2\)) is:

  • (A) \(2 : 1\)
  • (B) \(1 : 2\)
  • (C) \(1 : 1\)
  • (D) \(4 : 1\)

Question 88:

A Carnot engine operates between a heat source at \(T_1 = 600 K\) and a sink at \(T_2 = 300 K\). If the engine absorbs \(1000 J\) of heat from the source per cycle, the work done per cycle is:

  • (A) \(500 J\)
  • (B) \(1000 J\)
  • (C) \(250 J\)
  • (D) \(750 J\)

Question 89:

At what temperature is the root mean square (rms) speed of oxygen molecules (\(O_2\)) equal to that of helium molecules (\(He\)) at (27)? (Given molar mass of (O_2 = 32 g/mol), \(He = 4 g/mol\))

  • (A) \(2400 K\)
  • (B) \(2127 K\)
  • (C) (2427)
  • (D) (2127)

Question 90:

The ratio of the stress to the strain within the elastic limit is called

  • (A) Modulus of Elasticity
  • (B) Poisson's ratio
  • (C) Plastic limit
  • (D) Yield point

Question 91:

A liquid rises to a height of \(4 cm\) in a capillary tube of radius \(r\). If another capillary tube of radius \(r/2\) is dipped in the same liquid, the height of liquid rise will be

  • (A) \(8 cm\)
  • (B) \(2 cm\)
  • (C) \(4 cm\)
  • (D) \(16 cm\)

Question 92:

The rate of flow of a liquid through a capillary tube of radius \(r\) and length \(l\) under a pressure difference \(P\) is proportional to

  • (A) \(r^4 / l\)
  • (B) \(r^2 / l\)
  • (C) \(r / l\)
  • (D) \(r^3 / l\)

Question 93:

A copper rod and an iron rod of the same length have their temperature raised by the same amount. If the coefficient of linear expansion of copper is greater than that of iron, then

  • (A) Copper expands more than iron
  • (B) Iron expands more than copper
  • (C) Both expand by the same amount
  • (D) Expansion depends on their masses

Question 94:

The specific heat capacity of a gas at constant pressure (\(C_p\)) and at constant volume (\(C_v\)) are related as

  • (A) \(C_p - C_v = R\)
  • (B) \(C_v - C_p = R\)
  • (C) \(C_p / C_v = R\)
  • (D) \(C_p + C_v = R\)

Question 95:

In an isothermal process, which of the following remains constant?

  • (A) Temperature
  • (B) Pressure
  • (C) Volume
  • (D) Heat

Question 96:

The efficiency of a Carnot engine working between temperatures \(127\) and \(27\) is

  • (A) \(25\%\)
  • (B) \(75\%\)
  • (C) \(50\%\)
  • (D) \(20\%\)

Question 97:

The mean free path of a gas molecule is inversely proportional to

  • (A) Square of the molecular diameter
  • (B) Molecular diameter
  • (C) Temperature
  • (D) Square root of temperature

Question 98:

The time period of a simple pendulum of length \(l\) is \(T\). If its length is increased to \(4l\), its new time period will be

  • (A) \(2T\)
  • (B) \(4T\)
  • (C) \(T/2\)
  • (D) \(T\)

Question 99:

A transverse wave is represented by \(y = A \sin(kx - \omega t)\). The maximum particle velocity is

  • (A) \(A \omega\)
  • (B) \(A k\)
  • (C) \(\omega / k\)
  • (D) \(A \omega k\)

Question 100:

An open organ pipe of length \(L\) resonates at its fundamental frequency. The wavelength of the sound wave produced is

  • (A) \(2L\)
  • (B) \(L\)
  • (C) \(4L\)
  • (D) \(L/2\)

Question 101:

The apparent frequency of a siren increases as the source approaches a stationary observer. This phenomenon is known as

  • (A) Doppler Effect
  • (B) Resonance
  • (C) Interference
  • (D) Diffraction

Question 102:

The electrostatic force between two charges \(q_1\) and \(q_2\) separated by a distance \(r\) in vacuum is \(F\). If a dielectric medium of dielectric constant \(K\) is introduced between them, the new force is

  • (A) \(F / K\)
  • (B) \(K F\)
  • (C) \(F / K^2\)
  • (D) \(K^2 F\)

Question 103:

The electric potential at a distance \(r\) from a point charge \(q\) is proportional to

  • (A) \(1/r\)
  • (B) \(1/r^2\)
  • (C) \(r\)
  • (D) \(r^2\)

Question 104:

Three capacitors of capacitances \(3\ \), \(3\ \) and \(3\ \) are connected in series. The equivalent capacitance is

  • (A) \(1\ \)
  • (B) \(9\ \)
  • (C) \(3\ \)
  • (D) \(1.5\ \)

Question 105:

According to Ohm's law, the relation between the electric current \(I\) and the potential difference \(V\) across a conductor is

  • (A) \(V \propto I\)
  • (B) \(V \propto I^2\)
  • (C) \(V^2 \propto I\)
  • (D) \(V \propto 1/I\)

Question 106:

A wire of resistance \(R\) is stretched to double its original length. Its new resistance will be

  • (A) \(4R\)
  • (B) \(2R\)
  • (C) \(R/2\)
  • (D) \(R/4\)

Question 107:

In a Wheatstone bridge, the bridge is balanced when the ratio of the resistances in the four arms satisfies

  • (A) \(P/Q = R/S\)
  • (B) \(P/R = S/Q\)
  • (C) \(PS = QR\)
  • (D) \(P+Q = R+S\)

Question 108:

The magnetic field at the centre of a circular coil of radius \(r\) carrying a current \(I\) is proportional to

  • (A) \(I / r\)
  • (B) \(I r\)
  • (C) \(I / r^2\)
  • (D) \(I r^2\)

Question 109:

The force experienced by a charge \(q\) moving with velocity \(v\) in a magnetic field \(B\) is maximum when the angle between \(v\) and \(B\) is

  • (A) \(90^\circ\)
  • (B) \(0^\circ\)
  • (C) \(180^\circ\)
  • (D) \(45^\circ\)

Question 110:

The magnetic susceptibility is negative for:

  • (A) paramagnetic materials.
  • (B) ferromagnetic materials.
  • (C) superconducting materials.
  • (D) diamagnetic materials.

Question 111:

The self-inductance of a solenoid of length \(l\), area of cross-section \(A\) and number of turns \(N\) is proportional to

  • (A) \(N^2 A / l\)
  • (B) \(N A / l\)
  • (C) \(N^2 A l\)
  • (D) \(N A l\)

Question 112:

In an AC circuit containing only an inductor, the current


 

  • (A)   
  • (B)   
  • (C) 
  • (D)   

Question 113:

The velocity of electromagnetic waves in vacuum is given by

  • (A) \(1 / \sqrt{\mu_0 \epsilon_0}\)
  • (B) \(\sqrt{\mu_0 \epsilon_0}\)
  • (C) \(\mu_0 \epsilon_0\)
  • (D) \(1 / (\mu_0 \epsilon_0)\)

Question 114:

A convex lens of focal length \(20 cm\) is placed in contact with a concave lens of focal length \(40 cm\). The power of the combination is

  • (A) \(+2.5 D\)
  • (B) \(-2.5 D\)
  • (C) \(+5 D\)
  • (D) \(-5 D\)

Question 115:

In Young's double-slit experiment, the fringe width is proportional to

  • (A) \(\lambda\)
  • (B) \(1/\lambda\)
  • (C) \(d\)
  • (D) \(1/D\)

Question 116:

The work function of a metal depends on

  • (A) Nature of the metal
  • (B) Frequency of incident light
  • (C) Intensity of incident light
  • (D) Velocity of incident light

Question 117:

According to Bohr's model, the angular momentum of an electron in a stable orbit is an integral multiple of

  • (A) \(h / 2\pi\)
  • (B) \(h\)
  • (C) \(2\pi / h\)
  • (D) \(h / \pi\)

Question 118:

The half-life of a radioactive substance is 10 days. The decay constant is

  • (A) \(0.0693 / day\)
  • (B) \(0.693 / day\)
  • (C) \(6.93 / day\)
  • (D) \(0.00693 / day\)

Question 119:

A p-n junction diode acts as a closed switch when it is

  • (A) Forward biased
  • (B) Reverse biased
  • (C) Unbiased
  • (D) Breakdown biased

Question 120:

The de Broglie wavelength of a particle of mass \(m\) moving with a velocity \(v\) is given by

  • (A) \(h / mv\)
  • (B) \(mv / h\)
  • (C) \(hm / v\)
  • (D) \(h / m^2v\)

Question 121:

Which of the following quantum numbers determines the shape of an orbital?

  • (A) Azimuthal quantum number
  • (B) Principal quantum number
  • (C) Magnetic quantum number
  • (D) Spin quantum number

Question 122:

The elements with atomic numbers 9, 17, 35, 53 belong to the family of

  • (A) Halogens
  • (B) Alkali metals
  • (C) Alkaline earth metals
  • (D) Noble gases

Question 123:

Which of the following molecules has a linear shape?

  • (A) \(CO_2\)
  • (B) \(H_2O\)
  • (C) \(SO_2\)
  • (D) \(NH_3\)

Question 124:

The hybridization of carbon in methane (\(CH_4\)) is

  • (A) \(sp^3\)
  • (B) \(sp^2\)
  • (C) \(sp\)
  • (D) \(dsp^2\)

Question 125:

According to the kinetic theory of gases, the absolute temperature of a gas is directly proportional to

  • (A) Average kinetic energy of molecules
  • (B) Average velocity of molecules
  • (C) Average potential energy of molecules
  • (D) Volume of the gas

Question 126:

The value of the gas constant \(R\) in \(J K^{-1} mol^{-1}\) is

  • (A) 8.314
  • (B) 0.0821
  • (C) 1.987
  • (D) 83.14

Question 127:

For a spontaneous process at constant temperature and pressure, the change in Gibbs free energy (\(\Delta G\)) is

  • (A) Negative
  • (B) Positive
  • (C) Zero
  • (D) Infinite

Question 128:

For the reaction \(N_2(g) + 3H_2(g) \rightleftharpoons 2NH_3(g)\), the relation between \(K_p\) and \(K_c\) is

  • (A) \(K_p = K_c (RT)^{-2}\)
  • (B) \(K_p = K_c (RT)^2\)
  • (C) \(K_p = K_c (RT)^{-1}\)
  • (D) \(K_p = K_c (RT)\)

Question 129:

Which of the following is a conjugate acid-base pair?

  • (A) \(NH_4^+\) and \(NH_3\)
  • (B) \(HCl\) and \(NaOH\)
  • (C) \(H_2SO_4\) and \(SO_4^{2-}\)
  • (D) \(HNO_3\) and \(H_2O\)

Question 130:

The pH of a \(0.01 M NaOH\) solution is

  • (A) 12
  • (B) 2
  • (C) 10
  • (D) 7
     

Question 131:

The oxidation number of sulphur in \(H_2SO_4\) is

  • (A) +6
  • (B) +4
  • (C) -2
  • (D) 0

Question 132:

Temporary hardness of water is due to the presence of

  • (A) Calcium and magnesium bicarbonates
  • (B) Calcium and magnesium chlorides
  • (C) Calcium and magnesium sulphates
  • (D) Sodium carbonate

Question 133:

Which of the following alkali metals has the lowest melting point?

  • (A) Cs
  • (B) Li
  • (C) Na
  • (D) K

Question 134:

In diborane (\(B_2H_6\)), the number of bridge hydrogens is

  • (A) 2
  • (B) 4
  • (C) 6
  • (D) 0

Question 135:

Which allotrope of carbon is thermodynamically most stable?

  • (A) Graphite
  • (B) Diamond
  • (C) Fullerene
  • (D) Coal

Question 136:

The IUPAC name of \(CH_3-CH_2-CH(CH_3)-CH_3\) is

  • (A) 2-Methylbutane
  • (B) Isopentane
  • (C) Pentane
  • (D) 3-Methylbutane

Question 137:

Which of the following exhibits geometrical isomerism?

  • (A) 2-Butene
  • (B) 1-Butene
  • (C) Propene
  • (D) 2-Methylpropene

Question 138:

The reaction of benzene with methyl chloride in the presence of anhydrous \(AlCl_3\) is called

  • (A) Friedel-Crafts alkylation
  • (B) Wurtz reaction
  • (C) Fittig reaction
  • (D) Friedel-Crafts acylation

Question 139:

Which of the following gases causes greenhouse effect?

  • (A) \(CO_2\)
  • (B) \(N_2\)
  • (C) \(O_2\)
  • (D) \(Ar\)

Question 140:

In a face-centered cubic (fcc) lattice, the number of atoms per unit cell is

  • (A) 4
  • (B) 2
  • (C) 1
  • (D) 6

Question 141:

The osmotic pressure of a solution is given by the relation

  • (A) \(\pi = CRT\)
  • (B) \(\pi = C/RT\)
  • (C) \(\pi = RT/C\)
  • (D) \(\pi = CR/T\)

Question 142:

The unit of rate constant for a first-order reaction is

  • (A) \(s^{-1}\)
  • (B) \(mol L^{-1}\ s^{-1}\)
  • (C) \(L mol^{-1}\ s^{-1}\)
  • (D) s

Question 143:

According to Faraday's first law of electrolysis, the mass of substance deposited (\(w\)) is proportional to

  • (A) Quantity of electricity (\(Q\))
  • (B) Current (\(I\)) only
  • (C) Time (\(t\)) only
  • (D) Resistance (\(R\))

Question 144:

The process of adsorption is always

  • (A) Exothermic
  • (B) Endothermic
  • (C) Isothermal only
  • (D) Non-spontaneous

Question 145:

The principal ore of aluminium is

  • (A) Bauxite
  • (B) Haematite
  • (C) Galena
  • (D) Magnetite

Question 146:

The formula of phosphine gas is

  • (A) \(PH_3\)
  • (B) \(P_2H_4\)
  • (C) \(H_3PO_3\)
  • (D) \(H_3PO_4\)

Question 147:

Which of the following transition elements exhibits the highest oxidation state?

  • (A) Mn
  • (B) Fe
  • (C) Cr
  • (D) Ti
     

Question 148:

According to Werner's theory of coordination compounds, the secondary valency represents

  • (A) Coordination number
  • (B) Oxidation state
  • (C) Charge on the complex
  • (D) Ionic character
     

Question 149:

The coordination number of cobalt in \([Co(NH_3)_6]^{3+}\) is
 

  • (A) 6
  • (B) 4
  • (C) 3
  • (D) 2
     

Question 150:

The monomers of Nylon-6,6 are

  • (A) Adipic acid and hexamethylenediamine
  • (B) Caprolactam
  • (C) Ethylene glycol and terephthalic acid
  • (D) Styrene and butadiene

Question 151:

Which of the following is a natural polymer?

  • (A) Cellulose
  • (B) Nylon-6
  • (C) PVC
  • (D) Teflon

Question 152:

Glucose on reduction with \(HI\) and red phosphorus gives

  • (A) n-Hexane
  • (B) Gluconic acid
  • (C) Sorbitol
  • (D) Saccharic acid

Question 153:

Which of the following vitamins is water-soluble?

  • (A) Vitamin C
  • (B) Vitamin A
  • (C) Vitamin D
  • (D) Vitamin K

Question 154:

Aspirin is chemically known as

  • (A) Acetylsalicylic acid
  • (B) Methyl salicylate
  • (C) Salicylic acid
  • (D) Ethyl salicylate

Question 155:

The main constituent of dettol is

  • (A) Chloroxylenol and terpineol
  • (B) Bithionol
  • (C) Iodine
  • (D) Phenol

Question 156:

The conversion of alkyl halide to alcohol by aqueous \(KOH\) is an example of

  • (A) Nucleophilic substitution
  • (B) Electrophilic addition
  • (C) Nucleophilic addition
  • (D) Electrophilic substitution

Question 157:

Which of the following organic compounds will give Lucas test immediately?

  • (A) 2-Methylpropan-2-ol
  • (B) Propan-1-ol
  • (C) Propan-2-ol
  • (D) Ethanol

Question 158:

The reaction of an aldehyde with Tollens' reagent gives

  • (A) Silver mirror
  • (B) Red precipitate
  • (C) Yellow precipitate
  • (D) Blue solution

Question 159:

Which of the following is the strongest base in aqueous solution?

  • (A) Dimethylamine
  • (B) Methylamine
  • (C) Trimethylamine
  • (D) Aniline

AP EAPCET 2026 Paper Pattern – Engineering

Section Number of Questions Marks per Question Weightage Total Marks
Mathematics 80 1 80 80
Physics 40 1 40 40
Chemistry 40 1 40 40
Total 160 1 160 160

AP EAPCET 2026 Engineering Question Paper Analysis