Production Engineering Quiz | Production Engineering MCQs & Answers

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Questions
81 When 50 mm rod is turning at a spindle speed of 200 rpm the cutting speed would be
A 30-35 m/min
B 12 - 15 m/min
C 10 - 12 m/min
D 15 - 20 m/min

Answer: 30-35 m/min
82 Spindle speed in a lathe for turning a 40 cm dia rod at a cutting speed of 30 m/min would be
A 100 rpm
B 206 rpm
C 238 rpm
D 336 rpm

Answer: 238 rpm
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83 Which one of the following materials will have lowest cutting speed?
A High carbon steel
B Brass
C Mild steel
D Aluminium

Answer: High carbon steel
84 Which one of the following materials will have highest cutting speed?
A Aluminium
B Tool steel
C Cast iron
D Bronze

Answer: Aluminium
85 If the rake angle on a HSS lathe tool is 25 degrees the materials being machined is
A Cast iron
B Aluminium
C High speed steel
D Carbon steel

Answer: Aluminium
86 A master gauge is
A Used by masters
B Used by all mechanics
C A standard gauge for checking accuracy of gauges used on shop floors
D A gauge used by experienced technician

Answer: Used by all mechanics
87 Sintered tungsten carbides can be machined by
A Conventional processes
B Grinding only
C Diamond tools only
D Electro machining process

Answer: Electro machining process
88 High rate of oscillation of tools in ultrasonic machining is produced by
A D.C. motor
B A.C. motor
C Pneumatic generator
D Oscillator

Answer: Oscillator
89 Chisels used for metal cutting are
A Hardened
B Annealed
C Hardened and tempered
D Annealed, hardened and tempered

Answer: Annealed, hardened and tempered
90 Chisels for metal cutting are
A Hardened all over
B Hardened in the middle
C Hardened at cutting edge
D Hardened at random

Answer: Hardened all over
91 A diamond point chisel is used for
A Flat surfaces
B Round surfaces
C Convex surfaces
D V-shaped grooves

Answer: V-shaped grooves
92 A hot chisel is one which is
A Red hot
B Used to cut red hot materials
C Used to cut cold materials
D None of these

Answer: Used to cut red hot materials
93 Cold heading is a process of
A Chipless machining
B Electro-machining process
C Explosive forming
D Pneumatic mechanical forming

Answer: Chipless machining
94 Size of a shaper is generally specified by
A The area of machined surface per hour
B Maximum travel of cutting tool
C Length, breadth and height of machine
D Quick return ratio

Answer: Maximum travel of cutting tool
95 International Prototype Meter is made of
A Cast iron
B Mild steel
C Copper
D Platinum-iridium alloy

Answer: Platinum-iridium alloy
96 In centreless grinding the work piece advances by
A Push given by operator
B Hydraulic force
C Force exerted by grinding wheel
D Force exerted by regulating wheel

Answer: Force exerted by regulating wheel
97 The backlash between gears is expressed in terms of
A Difference between addendum and dedendum
B The difference between PCD of two gears
C The actual gear width on pitch circle minus the standard gear width for given number of teeth on gear
D Clearance between faces of the mating gears

Answer: Clearance between faces of the mating gears
98 Indexing for 107 divisions can be done by
A Simple indexing
B Compound indexing
C Differential indexing
D Compound differential indexing

Answer: Differential indexing
99 Simple indexing using a dividing head of turn ratio 40 for 6 division would be
A 14 holes in 21 hole circle plate
B 6 turns
C 26 holes in 21 hole circle plate
D 6 turns and holes in 21 hole circle plate

Answer: 6 turns and holes in 21 hole circle plate
100 If a drill does not cut; the probable cause would be
A Drill blunt
B Material difficult to drill
C Speed low
D Absence of coolant

Answer: Drill blunt

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