Machine Design MCQs

Welcome to our comprehensive collection of Multiple Choice Questions (MCQs) on Machine Design, a fundamental topic in the field of Mechanical Engineering. Whether you're preparing for competitive exams, honing your problem-solving skills, or simply looking to enhance your abilities in this field, our Machine Design MCQs are designed to help you grasp the core concepts and excel in solving problems.

In this section, you'll find a wide range of Machine Design mcq questions that explore various aspects of Machine Design problems. Each MCQ is crafted to challenge your understanding of Machine Design principles, enabling you to refine your problem-solving techniques. Whether you're a student aiming to ace Mechanical Engineering tests, a job seeker preparing for interviews, or someone simply interested in sharpening their skills, our Machine Design MCQs are your pathway to success in mastering this essential Mechanical Engineering topic.

Note: Each of the following question comes with multiple answer choices. Select the most appropriate option and test your understanding of Machine Design. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

So, are you ready to put your Machine Design knowledge to the test? Let's get started with our carefully curated MCQs!

Machine Design MCQs | Page 13 of 56

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Q121.
A sliding bearing which can support steady loads without any relative motion between the journal and the bearing, is called

a.

zero film bearing

b.

boundary lubricated bearing

c.

hydrodynamic lubricated bearing

d.

hydrostatic lubricated bearing

Discuss
Answer: (d).hydrostatic lubricated bearing
Q122.
In case of pressure vessels having closed ends, the fluid pressure induces

a.

longitudinal stress

b.

circumferential stress

c.

shear stress

d.

none of these

Discuss
Answer: (d).none of these
Q123.
A machine part subjected to __________ is called a strut.

a.

an axial tensile force

b.

an axial compressive force

c.

a tangential force

d.

any one of these

Discuss
Answer: (b).an axial compressive force
Q124.
The yield point in static loading is __________ as compared to fatigue loading.

a.

higher

b.

lower

c.

same

d.

None of these

Discuss
Answer: (a).higher
Q125.
The contact ratio is the ratio of

a.

length of path of contact to the circular pitch

b.

length of arc of contact to the circular pitch

c.

length of arc of approach to the circular pitch

d.

length of arc of recess to the circular pitch

Discuss
Answer: (b).length of arc of contact to the circular pitch
Q126.
The bearing characteristic number is given by (where p = Bearing pressure on the projected bearing area, Z = Absolute viscosity of the lubricant, and N = Speed of the journal)

a.

ZN/p

b.

p/ZN

c.

Z/pN

d.

N/Zp

Discuss
Answer: (a).ZN/p
Q127.
The cracks in helical springs used in railway carriages usually start on the inner side of the coil because of the fact that

a.

it is subjected to a higher stress than the outer side

b.

it is subjected to a higher cyclic loading than the outer side

c.

it is more stretched than the outer side during the manufacturing process

d.

it has a lower curvature than the outer side

Discuss
Answer: (b).it is subjected to a higher cyclic loading than the outer side
Q128.
In a marine flange coupling, the thickness of flange is taken as

a.

d/4

b.

d/3

c.

d/2

d.

3 d/4

Discuss
Answer: (b).d/3
Q129.
The wire ropes make contact at

a.

bottom of groove of the pulley

b.

sides of groove of the pulley

c.

sides and bottom of groove of the pulley

d.

anywhere in the groove of the pulley

Discuss
Answer: (a).bottom of groove of the pulley
Q130.
The metal suitable for bearings subjected to heavy loads is

a.

silicon bronze

b.

white metal

c.

monel metal

d.

phosphor bronze

Discuss
Answer: (b).white metal
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