1. When a rigid body is suspended vertically and it oscillates with a small amplitude under the action of the force of gravity, the body is known as ?

simple pendulum

compound pendulum

torsional pendulum

second's pendulum

Answer: compound pendulum


2. A localised compressive stress at the area of contact between two members is known as ?

tensile stress

bending stress

bearing stress

shear stress

Answer: bearing stress


3. In case of pressure vessels having open ends, the fluid pressure induces ?

longitudinal stress

circumferential stress

shear stress

none of these

Answer: circumferential stress


4. A basic hole is one whose ?

lower deviation is zero

upper deviation is zero

lower and upper deviations are zero

none of these

Answer: lower deviation is zero


5. The stress in the bar when the load is applied suddenly is........... as compared to the stress induced due to gradually applied loads ?



three times

four times

Answer: double


6. Auto frettage is the method of ?

joining thick cylinders

calculating stresses in thick cylinders

prestressing thick cylinders

increasing the life of thick cylinders

Answer: prestressing thick cylinders


7. The square threads are usually found on ?

spindles of bench vices

railway carriage couplings

feed mechanism of machine tools

screw cutting lathes

Answer: feed mechanism of machine tools


8. In static loading, stress concentration is more serious in ?

brittle materials

ductile materials

brittle as well as ductile materials

elastic materials

Answer: brittle materials


9. Guest's theory is used for ?

brittle materials

ductile materials

elastic materials

plastic materials

Answer: ductile materials


10. The rivet head used for boiler plate riveting is usually ?

snap head

pan head

counter sunk head

conical head

Answer: snap head