Rajasthan Motor Vehicle Sub Inspector Exam 2013 Paper – Automobile & mechanical Engineering

RPSC Motor Vehicle Sub Inspector Exam 2013 Paper – Automobile & mechanical Engineering

To transmit maximum power by a belt drive, it is necessary that
Maximum tension in the belt = _______ x Centrifugal tension in the belt
What is the correct option for the blank space ?
(a) 1
(b) 2
(c) 3
(d) 1/3

When there is a reduction in the amplitude of vibrations over every cycle of vibration, then the body is said to have
(a) free vibrations
(b) Forced vibrations
(c) Damped vibrations
(d) Torsional vibrations

Two shafts A and B are made of same material. The shaft A is solid and its diamter is D. The shaft B is hollow with outer diameter D and inner diameter D/2. If the maximum torque transmitted by shaft A is ‘T’, what will be the maximum torque transmitted by the shaft B?
(a) T/8
(b) T/4
(c) 15T/16
(d) 16T/15

Shock absorber in vehicles is used for
(a) absorbing the shock energy
(b) dissipating the shock energy
(c) increasing the shock energy
(d) producing the shock energy

Spring Index of a coil spring is
(a) Ratio of coil diameter to wire diameter
(b) Ratio of wire diameter to coil diameter
(c) Value of stiffness
(d) Value of quality of spring

Which one of the following option is based on ‘Pascal’s Law’ ?
(a) Hydraulic braking system
(b) Carburettor
(c) Fluid flywheel
(d) Engine lubrication system

Bernouli’s theorem is based on the law of conservation of _________
(a) Energy
(b) Mass
(c) Momentum
(d) Work

In a double-acting reciprocating pump, there are
(a) One suction valve and one delivery valve
(b) Two suction valve and two delivery valve
(c) One suction valve and two delivery valve
(d) Two suction valve and one delivery valve

For any reversible process, the change in entropy of the system and its surroundings is
(a) Negative
(b) Zero
(c) positive
(d) Infinite

The first type of perpetual motion machine is the one, which
(a) Works without any external energy
(b) Does not work without external energy
(c) Can completely convert the heat given into work
(d) Can not completely convert the heat given into work