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Question (21)

QN0035541

A thick rope of density and length is hung from a rigid support. The Young's modulus of the material of rope is . The increase in length of the rope due to its own weight is

(A)
(B)
(C)
(D)

Correct Answer: B

Explanation:

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Question (22)

QN0035542

If a mass produces an elongation of in a wire of radius and length , then the young's modulus of the material of the wire is given by

(A)
(B)
(C)
(D)

Correct Answer: C

Explanation:

Young's modulus

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Question (23)

QN0035543

A vertical metal cylinder of radius and length is fixed at the lower end and a load of is put on it. Find the strain. [Young's modulus of the metal ]

(A)
(B)
(C)
(D)

Correct Answer: A

Explanation:

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Question (24)

QN0035544

Which of the following is the correct relation? Young's modulus & modulus of rigidity?

(A)
(B)
(C)
G
(D)
None of these

Correct Answer: B

Explanation:

Young's modulus

modulus of rigidity and poissons's ratio

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Question (25)

QN0035545

The ratio of shearing stress to the corresponding shearing strain is called

(A)
bulk modulus
(B)
modulus of rigidity
(C)
Young's modulus
(D)
None of these

Correct Answer: D

Explanation:

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Question (26)

QN0035546

Steel ruptures when a shear of is applied. The force needed to punch a diameter hole in a steel sheet thick is nearly:

(A)
(B)
(C)
(D)

Correct Answer: C

Explanation:

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Question (27)

QN0035547

A steel wire of length and a copper wire of length , both of radius are connected end to end. When stretched by a load, the net elongation is found to be . The load applied, in Newton, will be: Given

(A)
360
(B)
180
(C)
1080
(D)
154

Correct Answer: D

Explanation:

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Question (28)

QN0035548

Which of the following elastic moduli is used to describe the elastic behaviour of object as they respond to the deforming forces acting on them?

(A)
Young's modulus
(B)
Bulk modulus
(C)
Shear modulus
(D)
All of these

Correct Answer: C

Explanation:

The three elastic moduli viz young's modulus, shear modulus and bulk modulus are used to describe the elastic behavior of objects as they respond to deforming forces acting on them.

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Question (29)

QN0035549

The isothermal bulk modulus of a gas at atmospheric pressure is

(A)
of
(B)
(C)
of
(D)

Correct Answer: C

Explanation:

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Question (30)

QN0035550

The reciprocal of the bulk modulus is called

(A)
modulus of rigidity
(B)
volume strain
(C)
volume stress
(D)
compressibilityz

Correct Answer: D

Explanation:

Compressibility

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Question (21)

A thick rope of density and length is hung from a rigid support. The Young's modulus of the material of rope is . The increase in length of the rope due to its own weight is

Explanation:

Link:

Question (22)

If a mass produces an elongation of in a wire of radius and length , then the young's modulus of the material of the wire is given by

Explanation:

Link:

Question (23)

A vertical metal cylinder of radius and length is fixed at the lower end and a load of is put on it. Find the strain. [Young's modulus of the metal ]

Explanation:

Link:

Question (24)

Which of the following is the correct relation? Young's modulus & modulus of rigidity?

Explanation:

Link:

Question (25)

The ratio of shearing stress to the corresponding shearing strain is called

Explanation:

Link:

Question (26)

Steel ruptures when a shear of is applied. The force needed to punch a diameter hole in a steel sheet thick is nearly:

Explanation:

Link:

Question (27)

A steel wire of length and a copper wire of length , both of radius are connected end to end. When stretched by a load, the net elongation is found to be . The load applied, in Newton, will be: Given

Explanation:

Link:

Question (28)

Which of the following elastic moduli is used to describe the elastic behaviour of object as they respond to the deforming forces acting on them?

Explanation:

Link:

Question (29)

The isothermal bulk modulus of a gas at atmospheric pressure is

Explanation:

Link:

Question (30)

The reciprocal of the bulk modulus is called

Explanation:

Link:

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