A solid uniform metal bar is hanging vertically from its upper end. Its elongation will be _________

Proportional to L2 and inversely proportional to D

Proportional to L and inversely proportional to D2

Proportional to L2 and inversely proportional to D

Proportional of U but independent of D

Proportional of L but independent of D

Explore topic-wise MCQs in Strength of Materials.

This section includes 5 Mcqs, each offering curated multiple-choice questions to sharpen your Strength of Materials knowledge and support exam preparation. Choose a topic below to get started.

1.	A solid uniform metal bar is hanging vertically from its upper end. Its elongation will be _________
A.	Proportional to L and inversely proportional to D<sup>2</sup>
B.	Proportional to L<sup>2</sup> and inversely proportional to D
C.	Proportional of U but independent of D
D.	Proportional of L but independent of D
Answer» B. Proportional to L<sup>2</sup> and inversely proportional to D

Discussion

2.	A steel bar of 20mm x 20mm square cross-section is subjected to an axial compressive load of 100kN. If the length of the bar is 1m and E=200GPa, then what will be the elongation of the bar?
A.	1.25mm
B.	2.70mm
C.	5.40mm
D.	4.05mm
Answer» B. 2.70mm

Discussion

3.	What will be the elongation of a bar of 1250mm² area and 90cm length when applied a force of 130kN if E = 1.05x 105 N/mm²?
A.	0.947mm
B.	0.891mm
C.	0.845mm
D.	0.745mm
Answer» C. 0.845mm

Discussion

4.	A rod of two sections of area 625mm² and 2500mm² of length 120cm and 60cm respectively. If the load applied is 45kN then what will be the elongation (E = 2.1x 105 N/mm²)?
A.	0.462mm
B.	0.521mm
C.	0.365mm
D.	0.514mm
Answer» B. 0.521mm

Discussion

5.	A composite rod is 1000mm long, its two ends are 40 mm² and 30mm² in area and length are 400mm and 600mm respectively. If the rod is subjected to an axial tensile load of 1000N, what will be its total elongation(E = 200GPa)?
A.	0.130m
B.	0.197mm
C.	0.160mm
D.	0.150mm
Answer» B. 0.197mm

Discussion

Explore topic-wise MCQs in Strength of Materials.

A solid uniform metal bar is hanging vertically from its upper end. Its elongation will be _________

A steel bar of 20mm x 20mm square cross-section is subjected to an axial compressive load of 100kN. If the length of the bar is 1m and E=200GPa, then what will be the elongation of the bar?

What will be the elongation of a bar of 1250mm2 area and 90cm length when applied a force of 130kN if E = 1.05x 105 N/mm2?

A rod of two sections of area 625mm2 and 2500mm2 of length 120cm and 60cm respectively. If the load applied is 45kN then what will be the elongation (E = 2.1x 105 N/mm2)?

A composite rod is 1000mm long, its two ends are 40 mm2 and 30mm2 in area and length are 400mm and 600mm respectively. If the rod is subjected to an axial tensile load of 1000N, what will be its total elongation(E = 200GPa)?

What will be the elongation of a bar of 1250mm² area and 90cm length when applied a force of 130kN if E = 1.05x 105 N/mm²?

A rod of two sections of area 625mm² and 2500mm² of length 120cm and 60cm respectively. If the load applied is 45kN then what will be the elongation (E = 2.1x 105 N/mm²)?

A composite rod is 1000mm long, its two ends are 40 mm² and 30mm² in area and length are 400mm and 600mm respectively. If the rod is subjected to an axial tensile load of 1000N, what will be its total elongation(E = 200GPa)?