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Free download in PDF Production Engineering Short Questions & Answers for competitive exams. These short objective type questions with answers are very important for Board exams as well as competitive exams. These short solved questions or quizzes are provided by Gkseries.
41
Music wire
[A]
Is fine wire used in musical instruments manufacture springs
[B]
Is a carbon steel wire used to manufacture springs
[C]
Is a resistance wire used in instruments
[D]
Is a standard wire for gauge determination
Answer: Is a carbon steel wire used to manufacture springs
42
Miter gears are
[A]
Spur gears of equal diameter and pitch
[B]
Helical gears of same module
[C]
Right angled bevel gears having the same number of teeth
[D]
Gears of different modules
Answer: Right angled bevel gears having the same number of teeth
43
Marform is
[A]
A darwing process that forms metal sheet by using a movable steel punch and a rubber headed ram
[B]
Is a foming process on lathe in which movement of tool is neither governed by cross slide nor by compound slide
[C]
Is a forming tool and on lathe machine to generate spherical surfaces
[D]
A work holding device in which plane of rotation can be changed while working
Answer: A darwing process that forms metal sheet by using a movable steel punch and a rubber headed ram
44
A mandrel is
[A]
A slightly tapered hardened steel shaft that supports works which cannot be supported otherwise
[B]
A tapered gauge used for inspection of tapered holes
[C]
Auxiliary chuck used on lathe for holding small loads
[D]
Is used in lathe work to hold castings
Answer: A tapered gauge used for inspection of tapered holes
45
Which one of the following methods be used for turning internal tapers only?
[A]
Compound rest
[B]
Tailstock offset
[C]
Taper attachment
[D]
Form tool
46
Shanks of taper drills are provided standard taper known as
[A]
Brown and Sharpe taper
[B]
Jarno and Reed taper
[C]
Morse taper
[D]
Sellers taper
47
Steady rest is
[A]
An additional support provided for long jobs
[B]
Used while turning unsymmetrical objects
[C]
Used during thready cutting only
[D]
Used when a lathe is subject to vibrations
Answer: An additional support provided for long jobs
48
In which operation on a work piece on lathe the spindle speed with be least?
[A]
Parting off
[B]
Finishing
[C]
Taper turning
[D]
Thread cutting
49
While using high speed steel tools on lathe the speed of chuck will be lowest while machining
[A]
Cast iron
[B]
Copper
[C]
Brass
[D]
Aluminium
50
While using HSS tools on a lathe, cutting speed will be maximum when machining
[A]
Cast iron
[B]
Mild steel
[C]
High carbon steel
[D]
Aluminium
51
A left hand tool on a lathe cuts most efficiently when
[A]
It travels from left to right
[B]
It travels from right to left
[C]
It travels across the bed
[D]
It is operated by compound slide
Answer: It travels from left to right
52
The power is transmitted by lead screw to the carriage through
[A]
Gear system
[B]
Pulley drive
[C]
Rack and pinion a arrangement
[D]
Half nut
53
A Hack-saw blade cuts on
[A]
Forward stroke
[B]
Return stroke
[C]
Both
[D]
Depends on direction of force
54
Hack-saw blades having the number of teeth as given below are available. Which one would you chose for cutting brass
[A]
14 teeth per inch
[B]
18 teeth per inch
[C]
24 teeth per inch
[D]
31 teeth per inch
Answer: 24 teeth per inch
55
The width of slot eut by a hack-saw blade is
[A]
Equal to the width of blade
[B]
Less than the width of blade
[C]
Slightly more than the width of blade
[D]
None of these
Answer: Slightly more than the width of blade
56
The length of a hacksaw blade is measured from
[A]
Extreme one to-extreme end
[B]
Centre of hole at one end to the centre of hole at the other end
[C]
The formula L = 16 x width
[D]
None of these
Answer: Centre of hole at one end to the centre of hole at the other end
57
In a drilling machine having six spindle speeds if first five speeds are 458, 605, 800, 1055 and 1390 rpm, the next higher speed would be
[A]
1440 rpm
[B]
1500 rpm
[C]
1630 rpm
[D]
1830 rpm
58
In a lathe gear box if first four consecutive speed are 19, 30, 47, 74 rpm, the next speed would be
[A]
93 rpm
[B]
116 rpm
[C]
101 rpm
[D]
104 rpm
59
In a centre lathe gear box for changing spindle speeds the provision for speeds is made in
[A]
Arithmetical progression
[B]
Geometrical progression
[C]
Square progression
[D]
Cubical progression
Answer: Geometrical progression
60
A plug gauge is used for measuring
[A]
Taper bores
[B]
Cylindrical bores
[C]
Spherical holes
[D]
Screw threads
Answer: Cylindrical bores
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