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Free download in PDF Workshop Technology Multiple Choice 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.
(1)
In a four high rolling mill, the diameter of backing up rolls is ________ the diameter of working rolls.
[A]
Equal to
[B]
Smaller than
[C]
Larger than
[D]
None of these
(2)
Acetylene gas is stored in cylinders in
[A]
Solid form
[B]
Gaseous form
[C]
Liquid form
[D]
Any one of these
(3)
The minimum size of a bloom is
[A]
5 cm × 5 cm
[B]
10 cm × 10 cm
[C]
15 cm × 15 cm
[D]
20 cm × 20 cm
(4)
Which of the following methods can be used for manufacturing 2 meter long seamless metallic tubes?
[A]
Drawing
[B]
Extrusion
[C]
Rolling
[D]
Extrusion and rolling
Answer: Extrusion and rolling
(5)
A rip saw
[A]
Is a two man saw
[B]
Is used for cutting along the grains of wood
[C]
Has a narrow blade with two wooden handles
[D]
All of the above
Answer: Is used for cutting along the grains of wood
(6)
A moving mandrel is used in
[A]
Wire drawing
[B]
Tube drawing
[C]
Metal cutting
[D]
Forging
(7)
The temperature of oxy-hydrogen flame is ________ oxyacetylene flame.
[A]
Same as
[B]
Less than
[C]
More than
[D]
None of these
(8)
In ________ welding, the weld may be made either from left to right or from right to left.
[A]
Forehand
[B]
Backhand
[C]
Vertical
[D]
None of these
(9)
Piercing is an operation of cutting
[A]
A cylindrical hole in a sheet of metal by the punch and the die
[B]
A hole (other than cylindrical) in a sheet of metal by the punch and the die
[C]
A flat sheet to the desired shape
[D]
A number of holes evenly spaced in a regular pattern on a sheet of metal
Answer: A hole (other than cylindrical) in a sheet of metal by the punch and the die
(10)
The algebraic difference between the minimum limit and the basic size is called
[A]
Actual deviation
[B]
Upper deviation
[C]
Lower deviation
[D]
Fundamental deviation
(11)
An oxidising process used for aluminium and magnesium articles is called
[A]
Galvanizing
[B]
Anodizing
[C]
Parkerising
[D]
Sherardizing
(12)
The electron beam welding can be carried out in
[A]
Open air
[B]
A shielded gas environment
[C]
Vacuum
[D]
A pressurized inert gas chamber
(13)
Thermit welding is often used in
[A]
Replacing broken gear teeth
[B]
Repairing broken shears
[C]
Joining rails, truck frames and locomotive frames etc.
[D]
All of the above
(14)
The process used to improve fatigue resistance of the metal by setting up compressive stresses in its surface, is known as
[A]
Hot piercing
[B]
Extrusion
[C]
Cold peening
[D]
Cold heading
(15)
When filing soft metals, the file teeth are clogged with minute particles of metal. The file should be cleaned by
[A]
Washing it with water
[B]
Rubbing on wood
[C]
Washing it with dilute acid
[D]
Using file card
(16)
The edge of a steel plate cut by oxygen cutting will get hardened when the carbon content is
[A]
Less than 0.1 percent
[B]
Less than 0.3 percent
[C]
More than 0.3 percent
[D]
Anywhere between 0.1 to 1 percent
Answer: More than 0.3 percent
(17)
Shift is a casting defect which
[A]
Results in a mismatching of the top and bottom parts of a casting
[B]
Results in general enlargement of a casting
[C]
Occurs near the ingates as rough lumps on the surface of a casting
[D]
Occurs as sand patches on the upper surface of a casting
Answer: Results in a mismatching of the top and bottom parts of a casting
(18)
When a hole or cavity to be cored is not in line with the parting surface, then a ________ is used.
[A]
Horizontal core
[B]
Vertical core
[C]
Drop core
[D]
Balanced core
(19)
The adhesiveness is the property of sand due to which
[A]
It evolves a great amount of steam and other gases
[B]
The sand grains stick together
[C]
It clings to the sides of a moulding box
[D]
None of these
Answer: It clings to the sides of a moulding box
(20)
In sheet metal work, he cutting force on the tool can be reduced by
[A]
Grinding the cutting edges sharp
[B]
Increasing the hardness of tool
[C]
Providing shear on tool
[D]
Increasing the hardness of die
Answer: Grinding the cutting edges sharp
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