Test: Solid Mechanics Level - 1

# Test: Solid Mechanics Level - 1

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## 25 Questions MCQ Test Civil Engineering SSC JE (Technical) | Test: Solid Mechanics Level - 1

Test: Solid Mechanics Level - 1 for Civil Engineering (CE) 2022 is part of Civil Engineering SSC JE (Technical) preparation. The Test: Solid Mechanics Level - 1 questions and answers have been prepared according to the Civil Engineering (CE) exam syllabus.The Test: Solid Mechanics Level - 1 MCQs are made for Civil Engineering (CE) 2022 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Solid Mechanics Level - 1 below.
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Test: Solid Mechanics Level - 1 - Question 1

### Whenever some external system of forces acts on a body, it undergoes some deformation. As the body undergoes some deformation, it sets up some resistance to the deformation. This resistance per unit area to deformation, is called

Test: Solid Mechanics Level - 1 - Question 2

### Which of the following is a proper sequence ?

Test: Solid Mechanics Level - 1 - Question 3

### Hook's law holds good up to

Detailed Solution for Test: Solid Mechanics Level - 1 - Question 3

Hooke's law states that : The Force applied to an elastic material is directly proportional to the extension produced.

We can write this as :

F = ke

Where k is the spring constant, F the force and e the extension.

For Hooke's law to hold the extension and Force must always proportional.

If the proportionality is broken then Hooke's law becomes invalid.

Therefore Hooke's law holds good up to limit of proportionality.

Test: Solid Mechanics Level - 1 - Question 4

The deformation of a bar under its own weight is __________ the deformation, if the same body is subjected to a direct load equal to weight of the body.

Test: Solid Mechanics Level - 1 - Question 5

The elongation of a conical bar under its own weight is ......that of prismatic bar of the same length.

Detailed Solution for Test: Solid Mechanics Level - 1 - Question 5

Explanation : Conical bar/Prismatic Bar.

= (wl2/6E) / (wl2/2E),

=1/3.

Test: Solid Mechanics Level - 1 - Question 6

Modular ratio of the two materials is the ratio of

Test: Solid Mechanics Level - 1 - Question 7

A bolt is made to pass through a tube and both of them are tightly fitted with the holp of washers and nuts. If the nut is tightened, then

Test: Solid Mechanics Level - 1 - Question 8

The Poisson's ratio for cast iron varies from

Test: Solid Mechanics Level - 1 - Question 9

The Poisson's ratio for stainless steel varies from

Test: Solid Mechanics Level - 1 - Question 10

When a body is subjected to three mutually perpendicular stresses, of equal intensity, the ratio of direct stress to the corresponding volumetric strain is known as

Test: Solid Mechanics Level - 1 - Question 11

The relation between Young's modulus (E) and bulk modulus (K) is given by

Test: Solid Mechanics Level - 1 - Question 12

The ratio of shear modulus to the modulus of elasticity for a Poisson's ratio of 0.4 will be

Test: Solid Mechanics Level - 1 - Question 13

The relation between Young's modulus (E), shear modulus (C) and bulk modulus (K) is given by

Test: Solid Mechanics Level - 1 - Question 14

When a body is subjected to a direct tensile stress (sx) in one plane accompanied by a simple
shear stress (txy), the maximum shear stress is

Test: Solid Mechanics Level - 1 - Question 15

The state of stress at a point in a loaded member is shown is fig. The magnitude of maximum shear stress is Test: Solid Mechanics Level - 1 - Question 16

The strain energy stored in a spring, when subjected to maximum load, without suffering permanent distortion, is known as

Test: Solid Mechanics Level - 1 - Question 17

The bending equation is

Test: Solid Mechanics Level - 1 - Question 18

The neutral axis of the cross-section a beam is that axis at which the bending stress is

Test: Solid Mechanics Level - 1 - Question 19

When a rectangular beam is loaded transversely, the maximum compressive stress is developed on the

Test: Solid Mechanics Level - 1 - Question 20

Two closely coiled helical springs 'A' and 'B' are equal in all respects but the diameter of wire of spring 'A' is double that of spring 'B' The stiffness of spring 'B' will be __________ that of spring 'A'

Test: Solid Mechanics Level - 1 - Question 21

Two closely -coiled helical springs 'A' and 'B' are equal in all respects but the number of turns of spring 'A' is double that of spring 'B'. The stiffness of spring 'A' will be ....... that of spring 'B'.

Detailed Solution for Test: Solid Mechanics Level - 1 - Question 21

Stiffness is inversely proportional to the no. of turns

Therefore,option d will be the correct answer.

Test: Solid Mechanics Level - 1 - Question 22

A closely-coiled helical spring is cut into two halves. The stiffness of the resulting spring will be

Test: Solid Mechanics Level - 1 - Question 23

A composite shaft consisting of two stepped portions having spring constants k1 and k2 is held between two rigid supports at the ends. Its equivalent spring constant is

Test: Solid Mechanics Level - 1 - Question 24

A composite shaft consisting of two stepped portions having spring constants k1 and k2 is held between two rigid supports at the ends. Its equivalent spring constant is

Test: Solid Mechanics Level - 1 - Question 25

The maximum deflection of a cantilever beam of length l with a uniformly distributed load of w per unit length is (where W = wl)

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## Civil Engineering SSC JE (Technical)

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