OJEE 2026 May 8 Shift 3 LE. Tech (Diploma) Question Paper with Solution PDF

Probability of an impossible event is ____.

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

The mean of number 2, 4, 6, 8 is ____.

• (A) 4
• (B) 5
• (C) 6
• (D) 8

Mode of data 2, 3, 3, 5, 7 is ____.

• (A) 2
• (B) 3
• (C) 5
• (D) 7

If all observations are increased by 5 their mean ____.

• (A) Decreases
• (B) Increase by 5
• (C) Remain same
• (D) Can not be Predicated

Range of data 5, 10, 15, 20 is ____.

• (A) 10
• (B) 15
• (C) 20
• (D) 5

Ten 100 W light bulb burns on an average of 10 hours a day for one week. The weekly consumption of energy will be ____ units.

• (A) 7
• (B) 70
• (C) 0.7
• (D) 0.07

Find effective capacitance between A and B is:

• (A) 13μF
• (B) 3μF
• (C) 9μF
• (D) 12μF

Electrolyte used in lead acid battery is

• (A) Sulphuric acid
• (B) Caustic potash
• (C) Nitric Acid
• (D) Hydrochloric acid

The frequency of the emf induced in the rotor circuit of a three phase. 50 Hz, 4 pole induction motor running at 1425 RPM is

• (A) 0.25 Hz
• (B) 0.025 Hz
• (C) 2.5 Hz
• (D) 25 Hz

The armature of a DC motor has resistance of 0.1 ohm and is connected to a 250 V supply. The generated emf when the motor is taking 60 A will be ____.

• (A) 244 V
• (B) 250 V
• (C) 256 V
• (D) 280 V

Which of the following statement is correct in connection with projectiles?

• (A) A path traced by a projectile in space is known as trajectory.
• (B) The velocity with which a projectile is projected is known as velocity of projection.
• (C) The angle with the horizontal at which a projectile is projected is known as angle of projection.
• (D) all of the above

The time of flight (t) of a projectile on a horizontal plane is given by: ____.

• (A) t = 2u sin \(\alpha\) / g
• (B) t = 2u cos \(\alpha\) / g
• (C) t = 2u tan \(\alpha\) / g
• (D) t = 2u / (g sin \(\alpha\))

The horizontal range of a projectile (R) is given by: ____.

• (A) R = u² cos 2\(\alpha\) / g
• (B) R = u² sin 2\(\alpha\) / g
• (C) R = u² cos \(\alpha\) / g
• (D) R = u² sin \(\alpha\) / g

The maximum height of a projectile on a horizontal plane is: ____.

• (A) u² sin² \(\alpha\) / 2g
• (B) u² cos² \(\alpha\) / 2g
• (C) u² sin² \(\alpha\) / g
• (D) u² cos² \(\alpha\) / g

The unit of angular velocity is: ____.

• (A) m / min
• (B) rad / s
• (C) revolutions / min
• (D) all of these