Workshop Technology Quiz | Workshop Technology Multiple Choice Questions and Answers

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Questions
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

Answer: Larger than
2 Acetylene gas is stored in cylinders in
A Solid form
B Gaseous form
C Liquid form
D Any one of these

Answer: Liquid form
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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

Answer: 15 cm × 15 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

Answer: Tube drawing
7 The temperature of oxy-hydrogen flame is ________ oxyacetylene flame.
A Same as
B Less than
C More than
D None of these

Answer: Less than
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

Answer: Vertical
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

Answer: Lower deviation
11 An oxidising process used for aluminium and magnesium articles is called
A Galvanizing
B Anodizing
C Parkerising
D Sherardizing

Answer: Anodizing
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

Answer: Vacuum
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

Answer: 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

Answer: Cold peening
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

Answer: 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

Answer: Drop 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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