1. What offset is provided for a cam follower mechanism ?

To avoid jerk

To minimize side thrust

To decelerate

To accelerate

Answer: To minimize side thrust

Explanation:


2. Which of the following is NOT considered as a basic type of strain ?

Compressive strain

Shear strain

Volume strain

Area strain

Answer: Area strain

Explanation:


3. Which type of support has a reaction and a bending moment components ?

Hinge support

Roller support

Fixed support

None of these

Answer: Fixed support

Explanation:


4. A rod with a length of 100 cm and diameter of 4 cm undergoes an axial pull of 50 kN. What is the stress (in N/mm²) ?

0.04

0.4

4

40

Answer: 4

Explanation:


5. Which of the following is TRUE for factor of safety ?

Tensile stress/Permissible stress

Compressive stress/Ultimate stress

Ultimate stress //Permissible stress

Ultimate stress/Shear stress

Answer: Ultimate stress //Permissible stress

Explanation:


6. If one end of the hinged column is made fixed and the other is free, then by how much the critical load is compared to the original value ?

0.5

2

0.25

4

Answer: 0.25

Explanation:


7. For which type of column the buckling load will be maximum ?

One end clamped and other free

Both ends clamped

Both ends hinged

One end hinged other is free

Answer: Both ends clamped

Explanation:


8. What will be the effect on Euler's crippling load for a column with both ends hinged, if the length of the column is halved ?

0.25

0.5

2

4

Answer: 4

Explanation:


9. Which is the CORRECT reason for the 5% - 10% of error in Euler's crippling load, when estimated theoretically ?

Effect of direct stress is neglected

Presence of friction in pin joints

The assumptions made are not met in real life conditions

Material does not behave as an ideal elastically

Answer: The assumptions made are not met in real life conditions

Explanation:


10. If a load of 40 kN is applied in a compressive manner on a rod whose cross section is 10 mm x 20 mm. Then what will be the compressive stress (in MPa) on the rod ?

0.2

2

20

200

Answer: 200

Explanation: