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Strength of Materials MCQs

151. For no tension condition in the base of a short column of circular section, the line of action of the load should be within a circle of diameter equal to __________ of the main circle.

one-half

one-third

one-fourth

one-eighth

✅ The correct answer is option C.

152. The values of equivalent length (L) and actual length (l) of a column for both ends hinged is the same

Yes

No

✅ The correct answer is option A.

153. The given figure shows the Mohr’s circle of stress for two unequal and like principal stresses (σx and σy) acting at a body across two mutually perpendicular planes. The tangential stress is given by

OC

OP

OQ

PQ

✅ The correct answer is option D.

154. The perpendicular distance between the centre lines of the successive rows, is called pitch.

Agree

Disagree

✅ The correct answer is option B.

155. Transverse fillet welds are designed for

tensile strength

compressive strength

shear strength

bending strength

✅ The correct answer is option A.

156. A body is subjected to a tensile stress of 1200 MPa on one plane and another tensile stress of 600 MPa on a plane at right angles to the former. It is also subjected to a shear stress of 400 MPa on the same planes. The minimum normal stress will be

400 MPa

500 MPa

900 MPa

1400 MPa

✅ The correct answer is option A.

157. If the modulus of elasticity for a given material is twice its modulus of rigidity, then bulk modulus is equal to

2C

3C

✅ The correct answer is option C.

158. A beam of uniform strength may be obtained by

keeping the width uniform and varying the depth

keeping the depth uniform and varying the width

varying the width and depth both

any one of the above

✅ The correct answer is option D.

159. A rectangular beam subjected to a bending moment is shown in the below figure. The upper layer of the beam will be in tension.

TRUE

FALSE

✅ The correct answer is option B.

160. When a beam is subjected to a bending moment, the strain in a layer is __________ the distance from the neutral axis.

equal to

directly proportional to

inversely proportional to

independent of

✅ The correct answer is option B.

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