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Test: Simple Mechanisms - 1


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10 Questions MCQ Test Theory of Machines (TOM) | Test: Simple Mechanisms - 1

Test: Simple Mechanisms - 1 for Mechanical Engineering 2022 is part of Theory of Machines (TOM) preparation. The Test: Simple Mechanisms - 1 questions and answers have been prepared according to the Mechanical Engineering exam syllabus.The Test: Simple Mechanisms - 1 MCQs are made for Mechanical Engineering 2022 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Simple Mechanisms - 1 below.
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Test: Simple Mechanisms - 1 - Question 1

Which amongst the following is wrong statements pertaining to machine and structure?

Detailed Solution for Test: Simple Mechanisms - 1 - Question 1

Structure and machine both are permanent construction. e.g. structure: Roof truss, machine frame, railway bridge etc.

Test: Simple Mechanisms - 1 - Question 2

The lead screw of a lathe with nut is a

Detailed Solution for Test: Simple Mechanisms - 1 - Question 2

If two mating links have a turning as well as sliding motion between them, they form a screw pair. This is achieved by cutting matching threads on the two links. The lead screw and the nut of a lathe is a screw pair.

Test: Simple Mechanisms - 1 - Question 3

Match the List-I (Kinematic pair) with List-ll (Application)
List-I                                      List-ll
A. Sliding pair                       1. Ball and roller bearing
B. Turning pair                      2. Rectangular rod in a rectangular hole
C. Rolling pair                       3. Bail and socket joint
D. Spherical pair                   4. Circular shaft revolving inside a bearing
 

Test: Simple Mechanisms - 1 - Question 4

The mechanism used to overcome a large resistance of a member with a small driving force is known as

Test: Simple Mechanisms - 1 - Question 5

Toggle mechanisms have following applications except

Detailed Solution for Test: Simple Mechanisms - 1 - Question 5

The mechanisms used to overcome a large resistance of a member with a small driving force are known as snap action or toggle mechanisms. They find their use in a variety of machines such as stone crushers, embossing presses, switches etc.

Test: Simple Mechanisms - 1 - Question 6

Which of the following are the inversions of double slider crank mechanism?
1. Oldham coupling
2. Whitworth quick return mechanism
3. Beam engine mechanism
4. Elliptic trammel mechanism

Select the correct answer from the codes given below:

Detailed Solution for Test: Simple Mechanisms - 1 - Question 6

Inversion of double slider-crank chain:
1. Elliptic trammel
2. Scotch yoke
3. Oldham's coupling Whitworth quick return mechanism is second inversion of single slider chain
Beam enigne is a type of steam engine

Test: Simple Mechanisms - 1 - Question 7

Which of the following is an inversion of doubleslider-crank chain?

Detailed Solution for Test: Simple Mechanisms - 1 - Question 7

Except scotch yoke, all three are inversion of single slider chain.

Test: Simple Mechanisms - 1 - Question 8

In a kinematic pair, when the elements have surface contact while in motion, it is a

Detailed Solution for Test: Simple Mechanisms - 1 - Question 8

Firstly, this topic is discussed under KINEMATICS PAIRING.

Based on nature of contact between elements;

Lower Pair: The joint by which two members are connected has surface contact (one element slides with another’s surface).
Discussion:
surface contact means large area of contact between two surfaces which divided into two categories:
i) Planar (2D) Mechanism -(2 axis movements)
ii) Spatial (3D) Mechanism -(3 axis movements)
Example:
Sliding pairs, turning pairs, screw pairs.

Higher Pair: The contact between pairing elements takes place at a point or a line.
Discussion:
it’s mentioned ‘a point’ or a ‘line’ because the surface contact between pairing elements is very small until it is considered as a point-to-point contact.
Example:

the contacts is relatively very small between pairing elements.

Test: Simple Mechanisms - 1 - Question 9

Which of the joint(s) in following mechanism represents quaternary joint?

Detailed Solution for Test: Simple Mechanisms - 1 - Question 9

Binary joints :I and F
Ternary joints : H, G, E, C, A and D
Quaternary joint : B

Test: Simple Mechanisms - 1 - Question 10

Which of the following is an inversion of single-slider-crank chain?

Detailed Solution for Test: Simple Mechanisms - 1 - Question 10

Chapter 5. Planar Linkages

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