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MCQ Questions For Interviews (Mechanical) : Ans: e

This document contains 15 multiple choice questions related to mechanical engineering topics like jigs and fixtures, tool life, casting defects, welding processes, material properties, and robotics. The questions cover areas such as the purpose of jigs and fixtures, factors that most affect tool life, what a feeler gauge is used to check, the metal removal process in machining, the crystal structure of alpha iron, causes of casting defects, and definitions of trajectory and fundamental natural frequency in robotics and vibrations respectively.

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Nithish Dhoni
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343 views3 pages

MCQ Questions For Interviews (Mechanical) : Ans: e

This document contains 15 multiple choice questions related to mechanical engineering topics like jigs and fixtures, tool life, casting defects, welding processes, material properties, and robotics. The questions cover areas such as the purpose of jigs and fixtures, factors that most affect tool life, what a feeler gauge is used to check, the metal removal process in machining, the crystal structure of alpha iron, causes of casting defects, and definitions of trajectory and fundamental natural frequency in robotics and vibrations respectively.

Uploaded by

Nithish Dhoni
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as DOCX, PDF, TXT or read online on Scribd
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MCQ QUESTIONS FOR INTERVIEWS [MECHANICAL]

1. The purpose of jigs and fixtures are to


a. Increased production rate
b. Increased machining accuracy
c. Facilitate interchangeable manufacturing
d. Enable employ less skilled operators
e. All of the above
Ans: e
2. Tool life of the cutting tool is most affected by
a. Cutting speed
b. Tool geometry
c. Cutting feed and depth
d. Microstructure of material being cut
e. Not using coolant and lubricant
Ans: a
3. A feeler gauge is used to check
a. Radius
b. Screw pitch
c. Surface roughness
d. Unsymmetrical shape
e. Thickness of clearance
Ans: e
4. Metal in machining operation is removed by
a. Tearing chips
b. Distortion of metal
c. Shearing the metal across a zone
d. Cutting the metal across a zone
e. Pushing the metal with tool
Ans: c

5. Ductility of material can be defined as


a. Ability to undergo large permanent deformation in compression
b. Ability to recover its original form
c. Ability to undergo large permanent deformation in tension
d. All of the above
e. None of the above
Ans: a
6. Inconel is an alloy of
a. Nickel, chromium and iron
b. Nickel and copper
c. Nickel and chromium
d. Nickel and zinc
e. Nickel and lead
Ans: a
MCQ QUESTIONS FOR INTERVIEWS [MECHANICAL]
7. Casting defects caused by the molten metal is
a) Blow holes
b) Swell
c) Scab
d) All of the above
Ans.: d

8. Forming operation which does not involve rotation of work piece is


a) Spinning
b) Thread rolling
c) Ring rolling
d) Upsetting
Ans.: d
9. Greater forging capacity is achieved with
a) Mechanical press
b) Power hammer
c) Hydraulic press
d) None of them
Ans.: c
10. Which of the following welding process uses consumable electrodes
a) TIG
b) MIG
c) Thermit
d) Laser
Ans.: b
11. The crystal structure of alpha iron
a) BCC
b) FCC
c) HCP
d) Cubic
Ans.: a

12. Severe quenching can cause


a) Blow holes
b) Warping
c) Inclusions
d) Non of them
Ans.: b
13. Glass bead peening on components done to
a) Improve creep strength
b) Improve fatigue strength
c) Improve finish
d) Impart further coating
Ans.: b
14. Trajectory of a robot mean :
MCQ QUESTIONS FOR INTERVIEWS [MECHANICAL]
a) Path traced by the end effectors
b) Kinematics of Robot
c) Robot joints
d) Robot programming
Ans: a
15. Rayleigh’s method of computing the fundamental natural frequency is based on
a)Conservation of energy
b)Conservation of momentum
c)Conservation of masses
d)Laws of statics
Ans: a

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