# For a spring-loaded roller-follower driven with a disc cam,

1.  The pressure angle should be larger during rise than that during return for ease of transmitting motion

2.   The pressure angle should be smaller during rise than that during return for ease of transmitting motion

3.  The pressure angle should be large during rise as well as during return for ease of transmitting motion

4.  The pressure angle does not affect the ease of transmitting motion

4

The pressure angle should be large during rise as well as during return for ease of transmitting motion

Explanation :
No Explanation available for this question

# The shape of the bending moment diagram for a uniform cantilever beam carrying a uniformly distributed load over its length is

1.  straight line

2.  a hyperbola

3.  a ellipse

4.  a parabola

4

a parabola

Explanation :
No Explanation available for this question

# In the figure shown, the spring deflects by δ to position A ( the equilibrium position) when a mass m is kept on it. During free vibration, the mass is a t position B at some instant. The change in potential energy of the spring-mass system from position A to position B is

1.  ½ kx2

2.  ½ kx2 –mgx

3.  ½ k(x+δ)2

4.  ½ kx2+mgx

4

½ kx2 –mgx

Explanation :
No Explanation available for this question

# A particle P is projected from the earth surface at latitude 45° with escape velocity v= 11.19 km/s. the velocity direction makes an angle α with the local vertical. The particle will escape the earth’s gravitational field

1.  only when α=0

2.  only when α=450

3.  only when α=900

4.  irrespective of the value of

4

irrespective of the value of

Explanation :
No Explanation available for this question

# Bars AB and BC, each of neglisible mass, support load P as shown figure. In this arrangement

1.  bar AB is subjected to bending but bar BC is not subjected to bending

2.  bar AB is not subjected to bending but bar BC is subjected to bending

3.  neither bar AB nor bar BC is subjected to bending

4.  both bars AB and BC are subected to bending

4

neither bar AB nor bar BC is subjected to bending

Explanation :
No Explanation available for this question

# The area moment of inertia of a square of size 1 unit about its diagonal is

1.  1/3

2.  ¼

3.  1/12

4.  1/6

4

1/12

Explanation :
No Explanation available for this question

# Which of the following statement is correct

1.  Fly wheel reduces speed fluctuations during a cycle for a constant load, but flywheel does not control the mean speed of the engine if the load changes

2.  Flywheel does not reduce speed fluctuation during a cycle for a constant load, but flywheel does not control the mean speed of engine if the load changes.

3.  Governor controls speed fluctuations during a cycle for a constant load, but governor does not control the mean speed of the engine if the load changes.

4.  Governor controls speed fluctuations during a cycle for a constant load, and governor also control the mean speed of the engine if the load changes.

4

Fly wheel reduces speed fluctuations during a cycle for a constant load, but flywheel does not control the mean speed of the engine if the load changes

Explanation :
No Explanation available for this question

# The SI unit of kinematic viscosity (v) is

1.  m2/sec

2.  kg/(m-sec)

3.  m/sec2

4.  m3/sec2

4

m2/sec

Explanation :
No Explanation available for this question

# static fluid can have

1.  Non-zero normal and shear stress

2.  Negative normal stress and zero shear stress

3.  Positive normal stress and zero shear stress

4.  zero normal stress and non-zero shear stress

4

Positive normal stress and zero shear stress

Explanation :
No Explanation available for this question

# A gas having a negative Joule-Thompson coefficient (u < 0), when throttled, will

1.  become cooler

2.  Become warmer

3.  Remain at the same temperature

4.  Either be cooler or warmer depending on the type of gas

4