1) Number of Notches in ring spanner may be ..................
10
13
12
8
Correct answer
12
2) Most common solder is …………………
An alloy of zinc & lead
An alloy of tin & zinc
An alloy of tin & lead
An alloy of Copper & zinc
Correct answer
An alloy of tin & lead
3) Hammer made from wood is known as ..............
Mallet
Sledge Hammer
Straight Peen Hammer
Ball Peen Hammer
Correct answer
Mallet
4) Number of Teeth in Rough File is ................
6 to 18 per CM
5 to 10 per CM
4.5 to 10 per CM
28 to 35 per CM
Correct answer
6 to 18 per CM
5) The main function of flux is ……………………….
To avoid oxidation
To join metal
To increase temperature
None of these
Correct answer
To avoid oxidation
6) If ‘D’ is the diameter of the rivet and ’t’ is the thickness of the plate in mm in a riveted joint the rule is ………………………..
d=8√t
d=3√t
d=4√t
d=6√t
Correct answer
d=6√t
7) Chisel used to cut KEYWAY .....................
Cap Chisel
Round nose Chisel
Diamond Point Chisel
Flat Chisel
Correct answer
Flat Chisel
8) Try Square is meant to ...................
Check the flat surface
Check the round surface
Check the irregular surface
check the groove surface
Correct answer
Check the flat surface
9) Marking media used for casting & forging surfaces is ..........
Chalk powder
Red lead
Prussian blue
Copper sulphate
Correct answer
Chalk powder
10) Hemming is done for ............................
Strengthening the edge of the sheet metal
To make joint
For wiring purpose
None of these
Correct answer
Strengthening the edge of the sheet metal
11) Notch used to bend the job at 90° ..................
Square Notch
Slant Notch
Wired Notch
V notch
Correct answer
V notch
12) Forging Temperature of low carbon steel is ..................
800 °C to 1300 °C
900 °C to 1150°C
950 °C to 1100 °C
None of these
Correct answer
900 °C to 1150°C
13) Characteristics of forge fire are...........
It should be clean
It should be dark
It should be dense
All of these
Correct answer
It should be clean
14) Galvanizing of metal is a process of ................
Coating the metal with chromium
Coating the metal with copper
Coating the metal with zinc
Coating the metal with tin
Correct answer
Coating the metal with zinc
15) A micrometer has 0.03 mm positive error. If micrometer reads 20.43 mm, then actual reading is ...................
20.46 mm
20.40 mm
20.49 mm
20.47 mm
Correct answer
20.40 mm
16) Basic Unit of Length in the SI System is .............
Millimeter
Micrometer
Metre
Centimeter
Correct answer
Metre
17) ........................ is a direct Measurement tool.
Outside caliper
Try Square
Straight Edge
Standard Steel Rule
Correct answer
Standard Steel Rule
18) Least Count of Steel Rule is ............
0.05 mm
0.01 mm
0.1 mm
0.5 mm
Correct answer
0.5 mm
19) BIS is known as .......................
Bureau of International Standard
Bureau of Industrial Standard
Bureau of Indian Standard
None of these
Correct answer
Bureau of Indian Standard
20) Calipers are made up of ..................
Mild Steel
Carbon
Toot Steel
Brass
Correct answer
Toot Steel
21) Which one of the following file is most suitable for a smooth finish to aluminum block?
Rasp cut
Single cut
Curved Cut
Double cut
Correct answer
Curved Cut
22) Point angle of the center punch is ..........................
90°
60°
30°
120°
Correct answer
90°
23) V block is available in ...............
A and B Grade
A Grade
B Grade
A, B and C Grade
Correct answer
A and B Grade
24) Vernier depth gauge is used for measuring ......................
Internal dimensions
External dimensions
Step depth of blind holes
Pitch diameter
Correct answer
Step depth of blind holes
25) The movable Jaw of the bench vice is not moving even though the spindle is turned. It is due to the reasons that ..................
Spindle pin is broken
Thread on the spindle is slightly worn out
Fixed and moveable jaw is over tight
Spring is not functioning
Correct answer
Spindle pin is broken
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