1) The brass used making the joint in brazing for soldering material is ...............
Flux
Soft soldering
Borax
Spelter
Correct answer
Spelter
2) Which material is used for joining Cl pipe?
Tin
Brass
Lead
Corrosion
Correct answer
Lead
3) Electroplating is done on jobs to resist corrosion. Which pole of a D.C. supply is connected to the work in electroplating process?
Positive pole
Negative terminal post
Negative pole
Positive terminal post
Correct answer
Negative terminal post
4) The ratio of number of teeth to pitch circle diameter in the rack is known as:
Circular pitch
Module
Diametric pitch
Pitch
Correct answer
Diametric pitch
5) Which pipe is used for interior work?
Steel pipe
PVC pipe
Wrought iron pipe
Lead pipe
Correct answer
Wrought iron pipe
6) What joint is used for the temporary pipeline?
Expansion joint
Collar joint
Screwed joint
Flange joint
Correct answer
Flange joint
7) The function of a washer is ...............
To provide a cushioning effect
To absorb shock and vibrations
To fill the axial gap
To provide bearing area
Correct answer
To provide bearing area
8) In a vee belt, the angle between the side is ...................
10 degree
20 degree
30 degree
40 degree
Correct answer
40 degree
9) A jig is a device used for .................
Loosening the workpiece
Guiding the tool
Holding the workpiece and guide the tool
Holding the workpiece
Correct answer
Holding the workpiece and guide the tool
10) A typical locating device for a cylindrical job used in jigs and fixtures are ..................
Mandrels
V-block
Angle plate
Drill jigs
Correct answer
V-block
11) To put off class ‘B’ fire, the type of fire extinguisher used ........................
Foam type
Carbon dioxide
Dry powder
Jet of water
Correct answer
Foam type
12) Name the rivet head used for heavy fabrication work .................
Mushroom
Flathead
Snap head
Pan's head
Correct answer
Pan's head
13) Belt slips, the reason is ................
High starting torque
Pulsating load
Less tension
Shock load
Correct answer
Less tension
14) Which type of knot is used to join two pieces of rope of equal diameters?
Bowline knot
Slip knot
Square knot
Sheepshank knot
Correct answer
Square knot
15) Which nonferrous metal tensile strength can be increased by hammering or rolling?
Copper
Zinc
Lead
Tin
Correct answer
Copper
16) Which type of thread is used for power screws?
BSW
Metric
Square
Knuckle
Correct answer
Square
17) Soldering iron are made of copper because ..................
It is a good conductor of heat
It’s a thermal expansion is more
It is a bad conductor of heat
It is heavy
Correct answer
It is a good conductor of heat
18) Name the type of jig in which a base plate Is not available,
Latch jig
Box jig
Trunnion jig
Plate jig
Correct answer
Plate jig
19) In the case of electric fire, which one of the following should not be used ............
Use C.T.C. extinguisher
Use dry chemical powder
Use sand or clay
Put water on it
Correct answer
Put water on it
20) The best way of avoiding an accident is by ...............
Observing safety rules related to the job, machine, and workplace
Doing work in an ancient way
Doing work in one’s own way
Using safety equipment
Correct answer
Observing safety rules related to the job, machine, and workplace
21) Oil fire is extinguished by .....................
Putting water on it
Foam extinguisher
Soda acid extinguisher
None of these
Correct answer
Foam extinguisher
22) In the process of soldering, you have noticed solder not sticking to sufficiently heated copper soldering bit when rubbed over solder bar. What step do you take to overcome the problem?
Pre-heat the solder
Rub the bit over solder for a longer period
Change the soldering bit shape
Clean the bit thoroughly
Correct answer
Clean the bit thoroughly
23) Which flux is used for soldering?
Zinc chloride
Ammonium Chloride
Hydrochloric acid
All of these
Correct answer
Hydrochloric acid
24) In a riveted joint the edges of plates are simply laid over each other and riveted. This joint is called .....................
Edge joint
Corner joint
Lap joint
Butt joint
Correct answer
Lap joint
25) In a riveted joint the plates are placed end-to-end and jointed through cover plates. This joint is called ........
Lap joint
Edge joint
Corner joint
Butt joint
Correct answer
Butt joint
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