Special Class Railway Apprentices Exam Solved papers

Provide me question paper for Special Class Railway Apprentices Examination organized by UPSC ?

[Arun Vats]

Here I am giving you question paper for Special Class Railway Apprentices Examination organized by UPSC in a file attached with it so you can get it easily.

1. Which of the following are correct ?
A static fluid implies that
1. there will not be any shear force acting in a fluid element
2. the individual molecules of a fluid element are not in motion
3. the fluid can be assumed to be a rigid body
Select the correct answer using the code given below
(a) 1,2, and 3 (b) 1 and 2 only (c) 2 and 3 only (d) 1 and 3 only
Sol. (a)
Assuming ideal fluid we can say that all the statements are correct.

2. A planet with mass equal to eight times the mass of the Earth, has the same average density as the Earth.
With g being the gravitational acceleration on the surface of the Earth, the gravitational acceleration on the
surface of the planet is :
(a) 8g (b) 4g (c) 8 g (d) 2g
Sol. (d)


3. The pitch of a screw gauge is 0.5 mm. Its head scale contains 50 divisions. The least count of the screw
gauge is :
(a) 0.0001 cm (b) 0.0025 cm (c) 0.01 cm (d) 0.00 1 cm
Sol. (d)

5. A body is acted upon by a force proportional to square of distance covered. If the distance covered is denoted
by x, then work done by the force will be proportional to :
(a) x (b) x2 (c) x3 (d) x–2
Sol. (c) F = Kx2 K = constant

6. If the internal energy of an ideal gas decreases by the same amount as the work done by the system, then
which of the following is/are correct ?
1. The process must be adiabatic
2. The process must be must decrease
3. The temperature of the gas must decrease
Select the correct answer using the code given below :
(a) 1 only (b) 1 and 3 (c) 2 (d) 3 only
Sol. (b) – U = Wg

7. Which one of the following quantities is zero on an average for the molecules of an ideal gas in equilibrium ?
(a) kinetic energy (b) density (c) speed (d) None of the above
Sol. (d) All positive