1) Following is the drill holding device for taper shank drill
Sleeve / Socket
Machine vice
Drill Chuck
Drift
Correct answer
Sleeve / Socket
2) Cutting angle of the flat drill is ...............
90 to 120 degree
140 to 180 degree
10 to 60 degree
180 to 360 degree
Correct answer
90 to 120 degree
3) Cutting fluid is used for drilling on cast iron is ....................
Water
Soluble oil
Air
Not required
Correct answer
Not required
4) Drill angle for general purpose drilling of twist drill is ..............
60 degree
90 degree
118 degree
180 degree
Correct answer
118 degree
5) The bevelling process of the end of a hole is called as ..................
Countersinking
Drilling
Counterboring
Spot facing
Correct answer
Countersinking
6) Spot facing operation is done by using tools
Reamer
Countersinking
Counterboring
Lathe tool
Correct answer
Counterboring
7) Angle required for riveting with countersinking is ..............
60 degree
75 degree
30 degree
90 degree
Correct answer
75 degree
8) The formula for drill size for reaming is ..............
DRILL SIZE = UNDER SIZE - (REAMED SIZE + OVER SIZE)
DRILL SIZE = REAMED SIZE - (UNDER SIZE + OVER SIZE)
DRILL SIZE = UNDER SIZE - REAMED SIZE
DRILL SIZE = UNDER SIZE - OVER SIZE
Correct answer
DRILL SIZE = REAMED SIZE - (UNDER SIZE + OVER SIZE)
9) Reamer is used for
Countersinking
Blind hole drilling
Enlarging & finishing holes
Drilling hole
Correct answer
Enlarging & finishing holes
10) A gauge is not used for checking a thread is
Micrometer depth
Screw pitch gauge
Micrometer screw thread
Thread snap gauge
Correct answer
Micrometer depth
11) Which type of thread is used in carpenter vice
Saw tooth thread
Square thread
Acme thread
Knuckle thread
Correct answer
Acme thread
12) M 10 x 1.5 mm tapping drill size is ............
9.5 mm
11.5 mm
8.17 mm
10.5 mm
Correct answer
8.17 mm
13) In tap set, 3 rd tap is also known as
Taper
Hand
Intermediate
Plug
Correct answer
Plug
14) Which tap is called spiral pointed tap
Fluteless spiral tap
Gun tap
Helical fluted tap
Thread forming
Correct answer
Helical fluted tap
15) Die is used for the repaired damaged thread but not to cut a new one is .............
Split die
Half die
Button die
Solid die nut
Correct answer
Solid die nut
16) Blank size for the external thread is calculated by
D = P - d/10
D = d - P x 10
D = P - d x 10
D = d - P/10
Correct answer
D = d - P/10
17) Which following cause is not correct for " Hole of drilling is too large"
Oversize
Loose spindle
Unequal angle
Coolant not used
Correct answer
Coolant not used
18) In letter size drilling 'A' size drill is
Biggest
Smallest
01 mm
None of this
Correct answer
Smallest
19) Following is not the correct option when drill grinding
Lip clearance
Cutting edge
Grinding dresser
Dead center
Correct answer
Grinding dresser
20) Metal burr is trapped on the surface of the grinding wheel is known as
Glazing
Loading
Truing
Dressing
Correct answer
Loading
21) Which of the following is an artificial abrasive
Diamond
Corundum
Aluminum oxide
Emery
Correct answer
Aluminum oxide
22) A grinding wheel having small abrasive particles known as
Bond
Grain or Grit
Grade
None of this
Correct answer
Aluminum oxide
23) Grinding of the surface which requires less accuracy is known as
Internal grinding
Form grinding
Off-hand grinding
None of this
Correct answer
Off hand grinding
24) A gauge is used to measure both concave & convex radius is known as
Fillet Gauge
Gap gauge
Wire gauge
Ring gauge
Correct answer
Fillet Gauge
25) Which gauge is used to check the gap between two parts
Screw pitch gauge
Center gauge
Slip gauge
Filler gauge
Correct answer
Filler gauge
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