1) In the number drill series, the smallest drill
size is ...........
0.35 mm
0.5 mm
0.1 mm
0.52 mm
Correct answer
0.35 mm
2) In the letter drill series, the largest drill size
is equal to.
10.32 mm
10.490mm
12.01 mm
15.00 mm
Correct answer
10.490mm
3) The sketch given below shows the set up
of a sine bar for taper angle checking to
Identify the item marked ‘X’
stopper
Job
slip gauges
sine bar
Correct answer
slip gauges
4) To protect the workpiece from being
damaged due to the frequent use of
wrenches.
Identify the item used ......
Footprint wrench
Chain wrench
Stilson pipe wrench
Strap wrench
Correct answer
Strap wrench
5) Which type of scraper is used for scraping
small diameter holes and deburring the
edges of holes?
Three square scraper
Flat scrape
Half round scraper
Bullnose scraper
Correct answer
Three square scraper
6) Key provides axial movement of the
component when fitted on the shaft identify
the key with shaft...
A
B
C
D
Correct answer
D
7) Identify the usage of gauge given below.
for measuring the minor diameter of threads
for checking the effective diameter of threads
for checking the pitch of threads
for measuring the flank angle by optical projection
Correct answer
for checking the effective diameter of threads
8) A 12 mm bolt with a hexagonal head is to
be removed from an assembly what will be
the size of the spanner to be used?
21
22
23
24
Correct answer
22
9) Identify the Dowels ...
A
B
C
D
Correct answer
D
10) In this figure shows the plug gauge is
used for checking the diameter of a straight
hole The 'Go’ gauge checks the……………
limit of the hole.
tight limit
higher limit
lower limit
normal limit
Correct answer
lower limit
11) The Iimits of the hole are 25.000 and
25.021 mm and the limits of the shaft 25.022
and 25.035 mm .The shaft is always bigger
than the hole. This is ..... fit
clearance fit
push fit
transition fit
interference fit
Correct answer
interference fit
12) Cutting fluids are used while honing,
mineral oil commonly used in machining
operations are diluted in proportion of one
part of oil with four parts of ........... is used for
honing.
kerosene
soap water
suiphurised oil
lard oil
Correct answer
kerosene
13) The figure given below an application of
type of screw. In figure two shafts are to be
connected using a collar. Name the most
suitable screw.
pan head screw
crub screw .
cap screw
set screw
Correct answer
set screw
14) Angle slip gauges are available in sets.
Each set consists of degree series,minute
series and seconds series in a standard set
, the number of pieces in the seconds series
is ..............
3
4
5
6
Correct answer
3
15) Which one of the following graphical
representation illustrates a bilateral tolerance
zone?
Option A
Option B
Option C
Option D
Correct answer
Option D
16) The number of tolerance grades in the IS
system of limits are.................
14 grades of tolerance
16 grades of tolerance
18 grades of tolerance
20 grades of tolerance
Correct answer
18 grades of tolerance
17) A workpiece has a muItistart 'V’ thread
cut on it the threads are checked with a
screw pitch gauge which one of the following
elements cannot be checked with the screw
pitch gauge?
profile angle
Pitch
lead
depth
Correct answer
depth
18) Screw thread plug gauge are used to
check internal threads. Which one of the
following statements is true with respect to
the condition for acceptance of the thread
component when checked with the ‘NO GO’
end?
Enters for two or three threads with wobble
Fully enters with out force and with out wobble
Fully enters with force and with out wobble
Enters for two or three threads without wobble
Correct answer
Enters for two or three threads with wobble
19) A sine bar is an indirect precision tool to
check and measure angles and tapers to a
very close accuracy.The sine bar is made out
of
high speed steel
nickel steel
high carbon steel
stabilised chromium steel.
Correct answer
stabilised chromium steel.
20)
25 mm
25.042 mm
25.03 mm
24.979 mm
Correct answer
25 mm
21) Under terminology of the BIS system of
limits the term tolerance is defined as the
difference between the................
maximum limit and the basic size
actual size and the basic size
minimum limit and the basic size
maximum limit and minimum limit
Correct answer
maximum limit and minimum limit
22) In the BIS system of limits three are 18
grades of tolerance represented by number
symbols for both hole and shaft Which one of
the following ranges of grade is best suitable
for manufacture of gauges?
12 to 16
8 to 12
5 to 8
1 to 4
Correct answer
1 to 4
23) The jaw type thread snap gauge is used
to check external threads. The anvil of the
'NO GO' end are in the form of....
sharp at crest root
rounded off at crest and root
full form and less number of threads than the GO end
truncated and less number of threads than the Go end
Correct answer
full form and less number of threads than the GO end
24) While measuring the size of the bare
conductor with a standard wire gauge the
conductor should only be cleaned with
clean cotton cloth
knife
emery paper
sand paper
Correct answer
clean cotton cloth
25) The plastic used for making engineering
component bearing is .............
polythene
cellulosis
nylon
acrylicrein
Correct answer
nylon
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