FITTER (THEORY) SEMESTER - III February 2016

FITTER (THEORY) SEMESTER - III

February 2016

Which type of nut will have a nylon or fibre
ring insert placed in the upper part of the
nut?

A  Self locking nut
B  Wire lock
C  Sawn nut
D  Grooved nut

Answer: A  Self locking nut

The purpose of grooves given on the lapping

plate is for.............

A  reducing friction

B  retaining lapping paste

C  collecting the metal chips

D  preventing distortion of the plate

Answer: B  retaining lapping paste

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The abrasive used for honing of non - ferrous
metal is.........

A boron carbide

B diamond

C silicon carbide

D aluminium oxide

Answer: C silicon carbide

Which type of nut prevents the rotation of the

top nut?

A. Sawn nut
B. Grooved nut
C. Self - locking nut
D. Lock nut

Answer: D. Lock nut

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In the number drill series, the number 80 drill

size is............

A 0.1035"
B 0.0135"
C 0.228"
D 0.258"

Answer: B 0.0135"

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In the letter drill series, the size of the drill 'A'

is equal to............

A 0.413"
B 0.431"
C 0.264"
D 0.234"

Answer: D 0.234"

While normalizing, the component should be

cooled..........

A  by dipping in water

B   in still air to room temperature

C  by forced air

D  by quenching in oil

Answer: B   in still air to room temperature

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The form tool method of turning taper is

suitable for...........

A   lengthy jobs with slow tapers
B   any length of work
C  very short at any angle
D  short and slow angle .

Answer: C  very short at any angle

The number of threads per inch can be

checked with a...........

A tool gauge
B metric rule
C ring gauge
D  screw pitch gauge

Answer: D  screw pitch gauge

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A tool which is used to enlarge a drilled hole

is called..........

A  poring tool

B  facing tool

C  form tool

D  ring hand turning tool

Answer: A  poring tool

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