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Test: Strength of Materials Level - 1


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25 Questions MCQ Test Mechanical Engineering SSC JE (Technical) | Test: Strength of Materials Level - 1

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

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

Test: Strength of Materials Level - 1 - Question 2

Which of the following is a proper sequence ?

Test: Strength of Materials Level - 1 - Question 3

Hooke's law holds good up to

Test: Strength of Materials 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: Strength of Materials Level - 1 - Question 5

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

Test: Strength of Materials Level - 1 - Question 6

Modular ratio of the two materials is the ratio of

Test: Strength of Materials Level - 1 - Question 7

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

Test: Strength of Materials Level - 1 - Question 8

The Poisson's ratio for steel varies from

Test: Strength of Materials Level - 1 - Question 9

The Poisson's ratio for cast iron varies from

Test: Strength of Materials 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: Strength of Materials Level - 1 - Question 11

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

Test: Strength of Materials 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: Strength of Materials Level - 1 - Question 13

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

Test: Strength of Materials Level - 1 - Question 14

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

Test: Strength of Materials 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

Detailed Solution for Test: Strength of Materials Level - 1 - Question 15

Max shear stress = sqrt[{(-40- 40) / 2}^2 + 30^2]. = sqrt[40^2 + 30^2]. = sqrt(2500). = 50 mpa.

Test: Strength of Materials Level - 1 - Question 16

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

Test: Strength of Materials Level - 1 - Question 17

The bending equation is

Test: Strength of Materials Level - 1 - Question 18

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

Test: Strength of Materials Level - 1 - Question 19

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

Detailed Solution for Test: Strength of Materials Level - 1 - Question 19

Correct Answer :- b

Explanation : Maximum compressive stress in developed at the top layer. And maximum tensile stress is developed at bottom fibre due to elongation of fibre.

Test: Strength of Materials 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

Test: Strength of Materials 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'.

Test: Strength of Materials Level - 1 - Question 22

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

Test: Strength of Materials 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: Strength of Materials 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: Strength of Materials Level - 1 - Question 25

According to Euler's column theory, the crippling load for a column length (l) hinged at both ends, is

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