Question 1

Continuous chips in ductile metals is promoted by

Accepted Answer

A) Small rake angle 
B) Reduce the wall thickness and increase the diameter of tubes already made 
C) Low cutting speed 
D) Insufficient cooling 
E) Rine feed 
A) Small rake angle 
B) Reduce the wall thickness and increase the diameter of tubes already made 
C) Low cutting speed 
D) Insufficient cooling 
E) Rine feed E

Question 2

Nitrided steel is used for gears where

Accepted Answer

A) Variable load operation is desired 
B) Low speed operation is desired 
C) Varying stresses are expected on teeth 
D) High hardness is desired on teeth 
E) Variable speed operation is desired 
A) Variable load operation is desired 
B) Low speed operation is desired 
C) Varying stresses are expected on teeth 
D) High hardness is desired on teeth 
E) Variable speed operation is desired D

Question 3

Which one of the following methods can be used for turning external tapers only?

Accepted Answer

A) Form tool 
B) Tail stock offset 
C) Reamer 
D) Compound rest 
E) Taper attachment 
A) Form tool 
B) Tail stock offset 
C) Reamer 
D) Compound rest 
E) Taper attachment B

Question 4

Gear tooth vernier is used to measure

Accepted Answer

A) Pitch line thickness of gear tooth 
B) Addendum and dedendum 
C) Gear tooth thickness 
D) Module 
E) Gear tooth profile 
A) Pitch line thickness of gear tooth 
B) Addendum and dedendum 
C) Gear tooth thickness 
D) Module 
E) Gear tooth profile

Question 5

A time switch is

Accepted Answer

A) A switch which operates for a fixed time only 
B) A switch which gets energised with time 
C) A 24 hour timing device used to open and close electric circuits according to time of day on a continually repeating schedule 
D) A switch with records timings of operation of a circuit 
E) None of the above 
A) A switch which operates for a fixed time only 
B) A switch which gets energised with time 
C) A 24 hour timing device used to open and close electric circuits according to time of day on a continually repeating schedule 
D) A switch with records timings of operation of a circuit 
E) None of the above

Question 6

A good cutting action is indicated by

Accepted Answer

A) High cutting ratio 
B) Low cutting ratio 
C) Low chip reduction coefficient 
D) None of the above 
E) Bakelite 
A) High cutting ratio 
B) Low cutting ratio 
C) Low chip reduction coefficient 
D) None of the above 
E) Bakelite

Question 7

Greater proportion of heat in a cutting operation is produced in the region of

Accepted Answer

A) tool-chip interface 
B) shearing plane of chip 
C) tool and work piece contact 
D) None of the above 
E) Parting off 
A) tool-chip interface 
B) shearing plane of chip 
C) tool and work piece contact 
D) None of the above 
E) Parting off

Question 8

The stake used for making conical shapes is known as

Accepted Answer

A) Parting off 
B) Hatchet stake 
C) Funnel stake 
D) Moon stake 
A) Parting off 
B) Hatchet stake 
C) Funnel stake 
D) Moon stake

Question 9

A sprue is

Accepted Answer

A) A process of cleaning castings 
B) A chemical added to molten materials to get sound castings 
C) A tool used in mould repairing 
D) A special type of non-ferrous core used in centrifugal castings only 
E) A vertical passage through the cope and connecting the pouring basin to the runner or gate 
A) A process of cleaning castings 
B) A chemical added to molten materials to get sound castings 
C) A tool used in mould repairing 
D) A special type of non-ferrous core used in centrifugal castings only 
E) A vertical passage through the cope and connecting the pouring basin to the runner or gate

Question 10

Out of the following materials which one will have lowest temperature of freezing?

Accepted Answer

A) Copper 
B) Zinc 
C) Gold 
D) Lead 
E) Tungsten 
A) Copper 
B) Zinc 
C) Gold 
D) Lead 
E) Tungsten

Question 11

Severe quenching may lead to

Accepted Answer

A) superficial hardness 
B) blow holes 
C) formation of cracks 
D) warping 
E) Parting off 
A) superficial hardness 
B) blow holes 
C) formation of cracks 
D) warping 
E) Parting off

Question 12

Which of the following process connot be carried out on lathe machine?

Accepted Answer

A) Notching 
B) Riveting 
C) Punching 
D) Blanking 
E) All of the above 
A) Notching 
B) Riveting 
C) Punching 
D) Blanking 
E) All of the above

Question 13

A stub tooth is one that is

Accepted Answer

A) Thicker in proportion to its length than involute tooth 
B) Smaller in proportion to its length than the involute tooth 
C) None of these 
D) Vernier caliper 
E) Same as involute tooth 
A) Thicker in proportion to its length than involute tooth 
B) Smaller in proportion to its length than the involute tooth 
C) None of these 
D) Vernier caliper 
E) Same as involute tooth

Question 14

Carbon tool steels generally loose their hardness above

Accepted Answer

A) 50°C 
B) 200°C 
C) 100°C 
D) Parting off 
E) 125°C 
A) 50°C 
B) 200°C 
C) 100°C 
D) Parting off 
E) 125°C

Question 15

A left hand tool on a lathe cuts most efficiently when

Accepted Answer

A) Automatic feed is connected 
B) It travels from left to right 
C) It is operated by compound slide 
D) It travels from right to left 
E) It travels across the bed 
A) Automatic feed is connected 
B) It travels from left to right 
C) It is operated by compound slide 
D) It travels from right to left 
E) It travels across the bed

Question 16

The coefficient of friction between chip and tool is the variable. It can be reduced by

Accepted Answer

A) Reducing the width of tool 
B) Reducing the depth of cut 
C) Reducing the effective rake angle 
D) None of these 
E) None of the above 
A) Reducing the width of tool 
B) Reducing the depth of cut 
C) Reducing the effective rake angle 
D) None of these 
E) None of the above

Question 17

A 12 mm drilling machine means

Accepted Answer

A) It can drill holes in 12 mm thick plates 
B) It can drill holes maximum 12 mm in diameter 
C) It can be used for crilling holes having cross-sectional area of 12 sq mm 
D) All of the above 
E) None of the above 
A) It can drill holes in 12 mm thick plates 
B) It can drill holes maximum 12 mm in diameter 
C) It can be used for crilling holes having cross-sectional area of 12 sq mm 
D) All of the above 
E) None of the above

Question 18

A half nut is

Accepted Answer

A) A double start nut for a quick shift 
B) Mechanism that locks the lathe carriage to the lead screw for thread cutting 
C) Nut with half the standard pitch 
D) Damaged nut 
E) Nut manufactured in parts 
A) A double start nut for a quick shift 
B) Mechanism that locks the lathe carriage to the lead screw for thread cutting 
C) Nut with half the standard pitch 
D) Damaged nut 
E) Nut manufactured in parts

Question 19

Which of the following operations is known as 'sweating'

Accepted Answer

A) Tinning the two surfaces to be joined, applying flux and heating 
B) Heating two surfaces to be joined, to the high temperature in presence of flux 
C) Heating two surfaces at low temperature 
D) Joining of two surfaces without use of flux 
E) None of the above 
A) Tinning the two surfaces to be joined, applying flux and heating 
B) Heating two surfaces to be joined, to the high temperature in presence of flux 
C) Heating two surfaces at low temperature 
D) Joining of two surfaces without use of flux 
E) None of the above

Question 20

A rack is gear of

Accepted Answer

A) Infinite pitch 
B) Infinite module 
C) Infinite diameter 
D) Infinite number of teeth 
E) None of the above 
A) Infinite pitch 
B) Infinite module 
C) Infinite diameter 
D) Infinite number of teeth 
E) None of the above

Continuous chips in ductile metals is promoted by

Nitrided steel is used for gears where

Which one of the following methods can be used for turning external tapers only?

Gear tooth vernier is used to measure

A time switch is

A good cutting action is indicated by

Greater proportion of heat in a cutting operation is produced in the region of

The stake used for making conical shapes is known as

A sprue is

Out of the following materials which one will have lowest temperature of freezing?

Severe quenching may lead to

Which of the following process connot be carried out on lathe machine?

A stub tooth is one that is

Carbon tool steels generally loose their hardness above

A left hand tool on a lathe cuts most efficiently when

The coefficient of friction between chip and tool is the variable. It can be reduced by

A 12 mm drilling machine means

A half nut is

Which of the following operations is known as 'sweating'

A rack is gear of

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Exam 7: Manufacturing and Machining Techniques

Continuous chips in ductile metals is promoted by

Nitrided steel is used for gears where

Which one of the following methods can be used for turning external tapers only?

Gear tooth vernier is used to measure

A time switch is

A good cutting action is indicated by

Greater proportion of heat in a cutting operation is produced in the region of

The stake used for making conical shapes is known as

A sprue is

Out of the following materials which one will have lowest temperature of freezing?

Severe quenching may lead to

Which of the following process connot be carried out on lathe machine?

A stub tooth is one that is

Carbon tool steels generally loose their hardness above

A left hand tool on a lathe cuts most efficiently when

The coefficient of friction between chip and tool is the variable. It can be reduced by

A 12 mm drilling machine means

A half nut is

Which of the following operations is known as 'sweating'

A rack is gear of

Manufacturing Processes and Materials and Tools

Mechanical Engineering and Manufacturing Processes

Industrial Engineering and Manufacturing Processes and Materials

Mechanical Engineering: Casting, Machining, and Welding

Mechanical Engineering Processes and Concepts

Manufacturing and Welding Processes

Mechanical Engineering: Foundry, Machining, and Materials

Metal Cleaning, Abrasives, and Machining Techniques

Manufacturing and Materials Engineering

Technical Manufacturing and Engineering

Manufacturing Processes: Wood Moisture, Alloyed Cast Iron, Cutting Tools, Welding

Techniques for Hardness Testing, Drilling, Machining, Welding, and Casting

Machining Processes, Techniques and Tools

Filters