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Free download in PDF Workshop Technology Objective Type Questions and 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.
(21)
Which of the following statement is wrong?
[A]
The mortise gauge has two scribing pins
[B]
The gouges are chisels with a hollow shaped blade
[C]
An auger is a planing tool
[D]
All of these
Answer: An auger is a planing tool
(22)
The mode of deformation of the metal during spinning is
[A]
Bending
[B]
Stretching
[C]
Rolling and stretching
[D]
Bending and stretching
Answer: Bending and stretching
(23)
In forehand welding, the weld is made
[A]
From left to right
[B]
From right to left
[C]
First from left to right and then from right to left
[D]
Either from left to right or from right to left
Answer: From right to left
(24)
The temperature at which the new grains are formed in the metal is called
[A]
Lower critical temperature
[B]
Upper critical temperature
[C]
Eutectic temperature
[D]
Recrystallisation temperature
Answer: Recrystallisation temperature
(25)
The surface to be left unmachined is marked on the pattern by
[A]
Red colour
[B]
Yellow colour
[C]
Black colour
[D]
Blue colour
(26)
The operation of bending a sheet of metal along a curved axis, is known as
[A]
Plunging
[B]
Notching
[C]
Slitting
[D]
Forming
(27)
In a ________, two or more operations are performed simultaneously at the single stroke of the ram.
[A]
Simple die
[B]
Progressive die
[C]
Combination die
[D]
Compound die
(28)
A jolt machine is used to
[A]
Ram the sand harder at the pattern face with decreasing hardness towards the back of the mould
[B]
Ram the sand harder at the back of the mould and softer on the pattern face
[C]
Produce uniform sand hardness throughout the mould
[D]
Produce uniform packing of sand in the mould
Answer: Ram the sand harder at the pattern face with decreasing hardness towards the back of the mould
(29)
The metal extrusion process is generally used for producing
[A]
Uniform solid sections
[B]
Uniform hollow sections
[C]
Uniform solid and hollow sections
[D]
Varying solid and hollow sections
Answer: Uniform solid and hollow sections
(30)
A three high rolling mill consists of three rolls placed one above the other. Which of the following statement is correct?
[A]
The upper and middle rolls rotate in the same direction whereas the bottom roll rotates in opposite direction
[B]
The upper and bottom rolls rotate in the same direction whereas the middle roll rotates in opposite direction
[C]
The bottom and middle roll rotate in the same direction
[D]
Any one of the above
Answer: The upper and bottom rolls rotate in the same direction whereas the middle roll rotates in opposite direction
31
A zinc diffusion process is called
[A]
Sherardizing
[B]
Galvanizing
[C]
Anodizing
[D]
Parkerising
32
In backhand welding, the angle between the welding rod and the work is ________ as compared to forehand welding.
[A]
Same
[B]
Less
[C]
More
[D]
None of these
33
The cross-section of a chisel is usually
[A]
Rectangular
[B]
Square
[C]
Hexagonal
[D]
Octagonal
34
Which of the following statement is wrong?
[A]
The angular clearance on dies varies from 0.5° to 1°
[B]
In drawing operation, the metal flows due to plasticity
[C]
In press operation, the size of the pierced hole is independent of the size of punch
[D]
None of the above
Answer: None of the above
35
If an aluminium pattern made from a wooden master pattern is to be used for grey iron castings, then the shrinkage allowance allowed on the wooden pattern should be
[A]
10 mm/m
[B]
16 mm/m
[C]
20 mm/m
[D]
26 mm/m
36
The property of sand due to which the sand grains stick together is called
[A]
Collapsibility
[B]
Permeability
[C]
Cohesiveness
[D]
Adhesiveness
37
In welding copper alloys with TIG arc welding
[A]
Direct current with straight polarity is used
[B]
Direct current with reversed polarity is used
[C]
Alternating current is used
[D]
Any one of these
Answer: Direct current with straight polarity is used
38
In welding magnesium with TIG arc welding, direct current with ________ is used.
[A]
Straight polarity
[B]
Reversed polarity
[C]
Both (A) and (B)
[D]
None of these
Answer: Reversed polarity
39
For gas welding, the pressure desired at the welding torch for acetylene is
[A]
7 to 103 kN/m²
[B]
70 to 280 kN/m²
[C]
280 to 560 kN/m²
[D]
560 to 840 kN/m²
40
For gas welding, the pressure desired at the welding torch for oxygen is
[A]
7 to 103 kN/m²
[B]
70 to 280 kN/m²
[C]
280 to 560 kN/m²
[D]
560 to 840 kN/m²
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