291. The ratio of the largest load in a test to the original cross-sectional area of the test piece is called
elastic limit
yield stress
ultimate stress
breaking stress
✅ The correct answer is option C.
Strength of Materials MCQs
292. The state of stress at a point in a loaded member is shown in the below figure. The magnitude of maximum shear stress is
10 MPa
30 MPa
50 MPa
100 MPa
✅ The correct answer is option C.
293. In a thick cylindrical shell subjected to an internal pressure (p), the radial stress across the thickness of the cylinder is
maximum at the outer surface and minimum at the inner surface
maximum at the inner surface and minimum at the outer surface
maximum at the outer surface and zero at the inner surface
maximum at the inner s
✅ The correct answer is option D.
294. A thick pressure vessel is always used for the generation of steam, as it can withstand high pressures.
TRUE
FALSE
✅ The correct answer is option B.
295. The relation between Young’s modulus (E) and bulk modulus (K) is given by
✅ The correct answer is option D.
296. The longitudinal stress in a riveted cylindrical shell of diameter (d), thickness (t) and subjected to an internal pressure (p) is
✅ The correct answer is option C.
297. A bolt is made to pass through a tube and both of them are tightly fitted with the help of washers and nuts. If the nut is tightened, then
bolt arid tube are under tension
bolt and tube are under compression
bolt is under compression and tube is under tension
bolt is Under tension
✅ The correct answer is option D.
298. The ratio of the lateral strain to the linear strain is called
modulus of elasticity
modulus of rigidity
bulk modulus
Poisson’s ratio
✅ The correct answer is option D.
299. A welded joint as compared to a riveted joint has __________ strength.
same
less
more
✅ The correct answer is option C.
300. The rectangular beam ‘A’ has length l, width b and depth d. Another beam ‘B’ has the same length and width but depth is double that of ‘A’. The elastic strength of beam B will be __________ as compared to beam A.
same
double
four times
six times
✅ The correct answer is option C.