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 37 of 56

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Q361.
While designing a screw in a screw jack against buckling failure, the end conditions for the screw are taken as

a.

both the ends fixed

b.

both the ends hinged

c.

one end fixed and the other end hinged

d.

one end fixed and the other end free

Discuss
Answer: (d).one end fixed and the other end free
Q362.
When a closely coiled helical spring is subjected to a couple about its axis, the stress induced in the wire material of the spring is

a.

bending stress only

b.

a combination of torsional shear stress and bending

c.

direct shear stress only

d.

a combination of bending stress and direct shear stress

Discuss
Answer: (a).bending stress only
Q363.
In a journal bearing, the load on the bearing is __________ to the axis of the journal.

a.

parallel

b.

perpendicular

c.

Can't say

d.

None of these

Discuss
Answer: (b).perpendicular
Q364.
An imaginary circle which by pure rolling action gives the same motion as the actual gear, is called

a.

addendum circle

b.

dedendum circle

c.

pitch circle

d.

clearance circle

Discuss
Answer: (c).pitch circle
Q365.
When the frictional force helps to apply the brake, then the brake is said to be self-energizing brake.

a.

Correct

b.

Incorrect

c.

Can't say

d.

None of these

Discuss
Answer: (a).Correct
Q366.
If T is the actual number of teeth on a helical gear and ฯ† is the helix angle for the teeth, then formative number of teeth is written as

a.

T sec³ ฯ†

b.

T sec² ฯ†

c.

T/sec³ ฯ†

d.

T cosec ฯ†

Discuss
Answer: (a).T sec³ ฯ†
Q367.
The material generally used for air-craft components is

a.

mild steel

b.

high speed steel

c.

stainless steel

d.

aluminium

Discuss
Answer: (d).aluminium
Q368.
The speed of the sprocket reduces as the chain pitch __________ for a given number of teeth.

a.

increases

b.

decreases

c.

Can't say

d.

None of these

Discuss
Answer: (a).increases
Q369.
In an oil lubricated journal bearing, the coefficient of friction between the journal and the bearing

a.

remains constant at all speeds

b.

is minimum at zero speed and increases monotonically with increase in speed

c.

is maximum at zero speed and decreases monotonically with increase in speed

d.

becomes minimum at an optimum speed and then increases with further increase in speed

Discuss
Answer: (d).becomes minimum at an optimum speed and then increases with further increase in speed
Q370.
According to Clavarino's equation, the thickness of a cylinder is equal to (where d = Inner diameter of cylinder, p = Internal pressure, and ฮผ = Poisson's ratio. )

a.

A

b.

B

c.

C

d.

D

Discuss
Answer: (a).A
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