JOIN ADRE 2.0 Telegram Group

Tool Life Quiz | Tool Life Multiple Choice Questions and Answers

Questions
1 The ascending order of evolution of materials used for making the cutting tools is
A stone – bronze – iron – steel
B bronze – stone – steel – iron
C iron – steel – bronze – stone
D bronze – stone – steel – iron

Answer: stone – bronze – iron – steel
2 Which of the following is second hardest substance known?
A Diamond
B Cubic Boron Nitride (CBN)
C Cermets
D Ceramics

Answer: Cubic Boron Nitride (CBN)
3 In blanking operation, the clearance is provided on.......
A Punch
B May br provided on any member
C Half on die and half on punch
D None of the above

Answer: Punch
4 In piercing operation,the clearence is provided on......
A Half on die and half on punch
B Punch
C Die
D none of the mentioned

Answer: Die
5 In bending operation, the metal takes shape of.........
A Could take any shape
B Die
C Punch
D None of the above

Answer: Punch
6 In drawing operation, increase of die radius.......
A Punch load depends on other factors
B Has much influnce on punch load and it decreases
C Does not influnce the punch load much
D Punch load increases

Answer: Has much influnce on punch load and it decreases
7 In drawing operation, increase of punch radius.......
A Punch load depends on other factors
B Punch load increases
C Does not influnce the punch load much
D None of the above

Answer: Does not influnce the punch load much
8 The front rake required to machine brass by H.S.S. tool is.......
A 0o
B 5o
C 10o
D None of the above

Answer: 0o
9 Which of the following tools are generally manufactured by Powder metallurgy?
A Cemented carbides
B High carbon steel
C Abrasives
D Low carbon steel

Answer: Cemented carbides
10 Which of the following is hardest known material?
A Diamond
B Cubic boron nitride (CBN)
C Ceramics
D Cemented carbide

Answer: Diamond
11 Corrundum is a/an
A Abrasive
B Ceramic
C Diamond
D None of the above

Answer: Abrasive
12 The cutting tool wears due to
A Flank wear
B Crater wear
C Edge wear
D All of the above

Answer: All of the above
13 The built up edge in cutting tools can be eliminated by
A High pressure cutting fluid
B Higher rake angles
C Fast cutting speed
D All of the above

Answer: All of the above
14 The cutting speed of High speed steels is ___ times faster than Carbon steel
A 4
B 8
C 6
D None of the above

Answer: 4
15 Which of the following cutting tool has highest hot hardness?
A Carbon tool steel
B Cast alloys
C Ceramics
D High speed steels

Answer: Ceramics
16 Which of the following cutting conditions greatly affects the tool wear?
A Depth of cut
B Feed
C Cutting speed
D None of the above is correct.

Answer: Cutting speed
17 In a single point turning operation with a cemented carbide and steel combination having a Taylor exponent of 0.25, if the cutting speed is halved, then the tool life will become
A Eight times
B Sixteen times
C Half
D Two times

Answer: Sixteen times
18 A drill bit of 20mm diameter rotating at 500 rpm with a feed rate of 0.2 mm/revolution is used to drill a through hole in Mild Steel plate of 20mm thickness. The depth of cut in this drilling operation is
A 10 mm
B 0.2 mm
C 100 mm
D 20 mm

Answer: 10 mm
19 The tool life increases with the
A Decrease in back rake angle
B Increase in side cutting edge angle
C Decrease in side rake angle
D Decrease in nose radius

Answer: Increase in side cutting edge angle
20 In the Taylor’s tool life equation, VT^n = C, the value of n=0.5. The tool life has a life of 180 minutes at a cutting speed of 18 m/min. If the tool life is reduced to 45 minutes, then the cutting speed will be
A 36 m/min
B 72 m/min
C 18 m/min
D 9 m/min

Answer: 36 m/min

ADRE 2.0 FULL LENGTH MOCK TEST

Take Mock Tests

Missiles Mock Test Start Test!
SSC MTS Mock Test Start Test
IBPS CLERK MOCK TEST Start Test
SSC MTS 2022 JULY 26 Shift 1 (ENGLISH) Start Test!
SSC GD Previous Year Paper 2021 Nov 17 Shift - I (Hindi) Start Test!
SSC CGL Tier - 1 PYP 2022 April 21 Shift- 1 (ENGLISH) Start Test!
MPSC PAPER I MOCK TEST 1 (ENGLISH) Start Test!
IB Security Assistant Mock test 1 (english) Start Test!
UP POLICE CONSTABLE MOCK TEST 1 Start Test!
DELHI POLICE CONSTABLE MOCK TEST 1 (HINDI) Start Test!
Advertisement
Assam Direct Recruitment Test Series