1) Mention the key having high torque of impact type is to be transmitted in both directions of rotation.
jib head key
saddle key
woodruff key
tangential key
Correct answer
jib head key
2) The hexagonal nut is made of hexagon & bar with a screwed! the threaded hole in the center where ’d’ is the diameter of the bolt theoretically the nut corner to corner is.
1.5d
2d
2.5d
d
Correct answer
2d
3) Identify the name of the key ...........
woodruff key
gib head key
saddle key
feather key
Correct answer
woodruff key
4) This scraper cutting edge helps to make point contact while scraping and also help to remove small spots. Name the type of scraper
flat scraper
bull nose scraper
three square scraper
half round scraper
Correct answer
bull nose scraper
5) Which one is a counter sunk head screw?
A
B
C
D
Correct answer
C
6) Which one of the following spring is used to supply motive power to clocks, cameras etc?
Helical tension spring
Balance spring
Leap spring
Conical disc spring
Correct answer
Balance spring
7) The file shown in the sketch useful for deepening the rounded gullets of teeth.
band file
block file
cross cut file
mill saw file
Correct answer
cross cut file
8) Which type of gauge is used to check the internal threads?
screw thread caliper gauge
screw thread ring gauge
screw thread plug gauge
screw pitch gauge
Correct answer
screw thread plug gauge
9) Slip gauges are used as standards for precision length measurement. The slip gauge is available in four grades as per BIS standard. Which one of the following grade is meant for calibration purpose?
Grade l
Grade 00
Grade 0
Grade II
Correct answer
Grade 00
10) Which one is a lock nut .................
A
B
C
D
Correct answer
C
11) The size of a sine bar is specified by......
height
width
depth
length
Correct answer
length
12) The difference between the maximum limit of size and the minimum limit of size is called...
tolerance
upper deviation
actual size
lower deviation
Correct answer
tolerance
13) Figure below show the graphical representation of fit .Name the fit......
interference fit
push fit
clearance fit
transition fit
Correct answer
clearance fit
14) Write the name of item shown in fig below ?
Depth gauge
Feeler gauge
Screw pitch gauge
Radius gauge
Correct answer
Screw pitch gauge
15) Types of washers given below identify toothed locked washer.
A
B
C
D
Correct answer
A
16) The purpose of grooves given on the lapping plate is for …….
reduction friction
collecting the metal chips
preventing distortion of the plate
retaining lapping paste
Correct answer
retaining lapping paste
17) Name the type of lap shown in the figure.
dry lap
ring lap
adjustable lap
adjustable ring lap
Correct answer
ring lap
18) In honing the movement of the spindle is... ...........
vertical and reciprocating
reciprocating
Horizontal and reciprocating
Vertical
Correct answer
vertical and reciprocating
19) The abrasive used for honing of non-ferrous metal is.........
boron carbide
silicon carbide
aluminium oxide
diamond
Correct answer
silicon carbide
20) In a plain bush bearing to prevent the rotation of bush in the housing it should be fitted by means of ...........
brazing
key or screw
welding
soldering
Correct answer
key or screw
21) Which one of the bearing loading is parallel to the axis of the bearing?
Thrust bearing
Solid bearing
Bush bearing
Split bearing
Correct answer
Thrust bearing
22) Rolling elements are available shapes Identify the roller type.
A
B
C
D
Correct answer
B
23) Types of bearing shown in figure below in different Identify tapered roller bearing is …………………
A
B
C
D
Correct answer
B
24) identify the form of thread used on fly presses and screw jacks
ACME thread
square thread
knuckle thread
‘V” thread
Correct answer
square thread
25) Which type of scraper is used for scraping bearing surfaces which are neither too big nor too small?
Flat scraper
Three square scraper
Half round scraper
Bull nose scraper
Correct answer
Three square scraper
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