Worksheets20/01/2026 AE : MOS_ STRESS, STRAIN CONCEPTS
Total questions: 10
Worksheet time: 5mins
A prismatic bar is subjected to an axial tensile load. It is observed that the cross-sectional area remains unchanged during loading. The most appropriate inference is:
A. The material is perfectly rigid
B. The material has zero Poisson’s ratio
C. The material has infinite Young’s modulus
D. The material is incompressible
A bar under axial tension is constrained laterally so that lateral strain is completely prevented. Compared to a free bar, the axial stress for the same axial strain will be:
A. Lower
B. Same
C. Higher
D. Zero
Two bars of identical material, length, and volume are subjected to equal axial tensile forces. Bar-1 is long and thin; Bar-2 is short and thick. Which statement is correct?
A. Stress is same in both
B. Strain is same in both
C. Elongation is same in both
D. Volumetric strain is different
A cube is submerged deep in water and experiences uniform hydrostatic pressure. Which statement is correct?
A. Cube experiences shear stress
B. Cube experiences normal stress but zero strain
C. Cube experiences normal stress in all directions
D. Cube experiences only surface force, no stress
If Poisson’s ratio of a material exceeds 0.5, the material would:
A. Become perfectly rigid
B. Violate conservation of mass
C. Exhibit negative volumetric strain under tension
D. Be physically impossible
A bolt connecting two plates fails in shear. The stress to be checked is based on:
A. Tensile area of bolt
B. Gross area of plate
C. Cross-sectional area of bolt
D. Projected area of plates
A solid cube is subjected to uniform hydrostatic pressure from all sides. Which statement is correct?
A. Shear stress is induced on diagonal planes
B. Normal stress exists only on horizontal planes
C. Normal stress exists in all three mutually perpendicular directions
D. Stress does not exist since force is external
Two bars of equal length but different cross-sectional areas are subjected to the same axial load. Which statement is always correct?
A. Stress is same
B. Strain is same
C. Elongation is same
D. Internal force is same
Assertion (A): Stress can exist in a body even if strain is assumed to be zero.
Reason (R): In rigid body idealisation, deformation is neglected but internal forces still balance external loads.
A. Both A and R are true, and R correctly explains A
B. Both A and R are true, but R does not explain A
C. A is true, R is false
D. A is false, R is true
Correct physical sequence in deformable bodies is:
A. Stress → Load →
Strain
B. Load → Strain → Stress
C. Load → Stress → Strain
D. Strain → Stress → Load
