1) Twist drills are made of ................
Low carbon steel
Wood
Stainless steel
High-speed steel
Correct answer
High-speed steel
2) Which type of apron is used while welding?
Cotton
Plastic
Silk
Leather
Correct answer
Cotton
3) Which one of the following is not the reason for the accident?
Unawareness of danger
Improper use of tools
Using gloves
Negligence
Correct answer
Using gloves
4) In Lap Joint, plates are kept .......................
In butt positions
At an angle
At straight angle
Overlap position
Correct answer
Overlap position
5) Killed steel is opposite of ............ steel.
Carbon
Alloy
Rimmed
None of these
Correct answer
Rimmed
6) Welding flux is used for ...................
Stopping oxidation
Oxidation
Radiation
Reduction
Correct answer
Stopping oxidation
7) The least count of a Vernier bevel protractor is ...............
5'
1”
1°
5°
Correct answer
5'
8) What should be done immediately if a cylinder leaks due to defective valves or safety plug?
Move it to a safe area
Ask others to repair it
Inform the supplier
Try to repair it yourself
Correct answer
Move it to a safe area
9) Pressure welding process, generally used in sheet metal fabrication is called ........................
Gas welding
Thermit welding
Spot welding
Arc welding
Correct answer
Spot welding
10) The clearance angle of a drill is between ..........
3° to 5°
8° to 12°
12° to 20°
15° to 20°
Correct answer
8° to 12°
11) The tap used to cut threads in a blind hole is ...............
Taper Tap
Second tap
Bottoming Tap
Anyone of these
Correct answer
Bottoming Tap
12) The electrode is consumed in the following welding process:
Resistance
Thermit
Arc
Gas
Correct answer
Arc
13) The material used for the coating of electrode is called .......................
Protective Layer
Flux
Binder
Slag
Correct answer
Flux
14) A Drift is used for .....................
Removing the drill from the machine spindle
Drawing drill location
Removing a broken drill from the work
Fixing chuck on the machine spindle
Correct answer
Removing the drill from the machine spindle
15) The charge is fed into the blast furnace through the ................
Bosh
Throat
Stack
Tuyers
Correct answer
Throat
16) Adjustable screw plate die is used for ........................
Chasing or reconditioning
Easy to assemble inside the collar
Increasing or decreasing depth of cut
Supplying the cutting oil while threading
Correct answer
Increasing or decreasing depth of cut
17) ............. Is used for galvanizing iron sheets so that they do not rust.
Tin
Silver
Lead
Zinc
Correct answer
Zinc
18) The process of beveling the end of a hole is called ...................
Countersinking
Spot facing
Counterboring
Reaming
Correct answer
Countersinking
19) Straight shank drills are held in .............
Arbor
Drill Chuck
Socket
Sleeve
Correct answer
Drill Chuck
20) Property of wrought iron is decided by ................
Magnesium and manganese
Carbon and magnesium
aluminum and carbon
Carbon and manganese
Correct answer
Carbon and manganese
21) The drilled hole is more than drill size due to ......................
Incorrect clearance
Large Helix angle
Inappropriate cutting angle
Unequal lip lengths
Correct answer
Unequal lip lengths
22) Jenny caliper is used ..........................
For finding the internal dia of round bar
For finding the external dia of round bar
For finding the center of round bar
For finding the angles
Correct answer
For finding the center of round bar
23) While drilling the drill gets overheated this is due to ..........................
More lip clearance angle
The material being drilled is ductile
Excessive cutting pressure
Less cutting angle
Correct answer
Excessive cutting pressure
24) The angle of BSW ‘V form thread is ..................
45°
55°
47.5°
60°
Correct answer
55°
25) To find/check the clearance between two mating parts, ...................gauge is used.
Plug
Fillet
Radius
Feeler
Correct answer
Feeler
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