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Element of Machine Design Topic 1- 1

Total questions: 15

Worksheet time: 10mins

Name
Class
Date
1.

This type of design depends upon mathematical formulae of principle of mechanics.

a)

•Rational design.

b)

•Empirical design.

c)

•Industrial design.

d)

•Optimum design.

2.

What type of stress is a combination of tensile and compressive stresses, leading to a change in the shape of the material without any change in its volume?

a)

Tensile stress

b)

Compressive stress

c)

Shear stress

d)

Bending stress

3.

What type of stress is also known as "pulling" stress and occurs when forces act to elongate or stretch the material?

a)

Tensile stress

b)

Compressive stress

c)

Shear stress

d)

Torsional stress

4.

This type of design depends upon empirical formulae based on the practice and past experience.

a)

•Rational design.

b)

•Empirical design.

c)

•Industrial design.

d)

•Optimum design.

5.

It is the best design for the given objective function under the specified constraints. It may be achieved by minimising the undesirable effects

a)

Rational design

b)

Empirical design

c)

Industrial design

d)

Optimum design

6.

________ is the ability of a material to resist deformation under stress

a)

Stiffness

b)

Strength

c)

Elasticity

d)

Plasticity

7.

________ is the property of a material enabling it to be drawn into wire with the application of a tensile force.

a)

Ductility

b)

Plasticity

c)

Elasticity

d)

Brittleness

8.

________ is property of a material which retains the deformation produced under load permanently.

a)

Plasticity

b)

Ductility

c)

Elasticity

d)

Brittleness

9.

When a body is subjected to two equal and opposite axial pulls force, then the stress induced at any section of the body is known as __________

a)

tensile stress

b)

Shear Stress

c)

Simple Stress

d)

Compressive Stress

10.

 ϵ=       P  x  l......... x  δl\epsilon=\frac{\ \ \ \ \ \ \ P\ \ x\ \ l}{ (a)   \ x\ \ \delta l}  fill in the blank

11.

Find the diameter of the link stock, if the permissible tensile stress in the link material is not to exceed 75 MPa

(a)  

12.

This type of design needs lot of research, technical ability and creative thinking. Only those designers who have personal qualities of a sufficiently high order can take up the work of this type of design.

a)

New Design

b)

Adaptive Design

c)

Development Design

13.

What type of stress occurs when two forces act on an element in the same direction, pushing the material together?

a)

Tensile stress

b)

Compressive stress

c)

Shear stress

d)

Torsional stress

14.

What type of stress occurs when forces act parallel to the cross-sectional area of the element, trying to slide one part of the material over the other?

a)

Tensile stress

b)

Shear stress

c)

Torsional stress

d)

Compressive stress

15.

What type of stress occurs when a twisting force is applied to an element?

a)

Tensile stress

b)

Compressive stress

c)

Shear stress

d)

Torsional stress