1) The zero checking is done for (O-25 mm) depth micrometer on a...
setting ring
surface plate
test piece
straight edge
2) The value of one thimble scale division in a metric micrometer is ......................
0.5 mm
0.02 mm
0.01 mm
1 mm
3) What type of angle is measured with the Vernier Bevel Protractor figure shown below?
Captionless Image
Acute angle
Straight angle
Right angle
Obtuse angle
4) The depth bar of vernier caliper is attached with........
Movable jaw
Fine adjustment unit
Main scale
Fixed Jaw
5 ) The part of the vernier bevel protractor which is normally used as a reference base for measuring an angle is ..........................
blade
main scale
stock
disc
6) Graduations on vernier bevel protractor. In vernier bevel protractor the 23 degrees is divided into how many vernier divisions.
25
20
10
12
7) Drift is used to remove the ..........................
spindle from the machine
drill chuck from the spindle
jaws of the drill chuck
the parallel shank drill bit
8) Normally chisels are provided with convexity. What will be the effect on job when using the chisel not provided with convexity?
Poor finish at the cut surface
Chisel will slip away from the job.
Metal will not be removed from the work surface
Digging on the sides of the job
9) While measuring with vernier caliper the movable jaw lifts and gives an incorrect reading. To get correct reading ...
Tight the strap provided at the end
Ground the fixed jaw to suit the play
Replace with the good vernier caliper
Adjust the jib provided in the movable jaw
10) The function of tyers in the forge is to.......
allow the forced air into the hearth
allow the cooled air
allow the work pieces to be heated in the forge.
act as an outlet for the products of combustion
11) The function of the hood in the forge is to ..........
prevent the heat from escaping from Hearth
give appearance to the forge
prevent rain water falling on the fire
let out smoke and dust
12) The swage blocks in forge shops are made out of ......................
tool cast iron
malleable cast iron
grey cast iron
nodular cast iron
13) The type of hammers used in the forge shop weigh from 3 to 9 kgs and is fitted with long wooden handles is ..............
sledge hammer
straight pein hammer
hand hammers
bail pein hammer
14) In forging operation, the heating temperature is determined by the color of the steel. What is the color, when the heating temperature is 600 °C
White
Red
Yellow
Dull brown
15) In a forging operation, the cross-section of the piece of stock is reduced and the length is increased. Name the operation...
bucking
drawing out
upsetting
jumping
16) Name the instrument used to draw the circle or arc of a larger diameter.
Divider
Trammel
Inside caliper
Odd leg caliper
17) Pin punches are used to drive dowels out of their holes. Pin punches are available in the set of...............
5 pins
6 pins
12 pins
10 pins
18) The term polygons are usually referred to plane figures of .................
Three straight sides
Four straight sides
Two straight sides
Five or more sides
19) The properties of a sheet metal vary depending on the rolling direction of the sheet is called …………
Bending
Directionality
Cutting
Folding
20) Identify the type of weld shown in figure
Captionless Image
Fillet Weld
Butt weld
Plug weld
21) In oxy-acetylene welding, Acetylene cylinders are painted in which color?
Black
Maroon
Brown
Red
22) What is the current range required for Ø 1.6 mm M.S electrode in arc welding?
120 — 170 A
50 — 80 A
180—270 A
40 —60 A
23) Which one of the following electrodes can be used both on A.C. and D.C. welding machines?
Mild steel coated electrode
Aluminum electrode
Carbon electrode?
Bare metal electrode
24) While gas cutting the nozzle should be.....
Touch the work
5 mm away from work
10 mm away from work
2 mm away from work
25) Which one of the defects are caused by higher welding speed in arc welding
Lack of fusion
spatters
Porosity
overlap
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