FITTER (THEORY) SEMESTER - III February 2016

FITTER (THEORY) SEMESTER - III

February 2016

Which one of the following methods of thread

catching is used to cut metric threads on a

British lathe?
A  Using a chasing dial
B  By reversing the machine
C  By making the predetermined travel of the

     carriage on the bed
D  Marking reference lines on the head stock as

     well as on the lead screw

Answer: B  By reversing the machine

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Benefits of the 5S systems are
A  increase the cleanliness
B  increase the productivity
C  decrease the production rate
D  maintain the production rate

Answer: B  increase the productivity

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In which gauge GO and NOGO comes in the
same end?

A. Double ended plug gauge
B. Snap gauge
C. Progressive gauge
D. Depth gauge

Answer: C. Progressive gauge

The lathe part which is used to hold the drill

is.......

A tool post

B tail stock

C head stock

D spindle

Answer: B tail stock

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Sine bar is specified by............

A  its total length

B  the centre distance between the two rollers
C  the size of the rollers
D  the distance between rollers and upper
     surface

Answer: B  the centre distance between the two rollers

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Name the material commonly used for
thicker walled bearing bushes carrying
hardened steel shafts.

A  Phosphor bronze

B Brass

C Aluminium

D Copper

Answer: A  Phosphor bronze

Tempering is the process of removing the

property of............

A brittleness
B malleability
C toughness
D ductility

Answer: A brittleness

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The number of pieces in a standard set of
angle slip gauge in the second series is....
A. 3

B. 4

C. 5

D. 6

Answer: A. 3

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Sine bar is made out of....

A nickel steel

B high speed steel

C high carbon steel

D stabilised chromium steel

Answer: D stabilised chromium steel

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Which type of bearing intended to carry

radial loads?
A  Ball bearing
B   Thrust ball bearing
C  Roller bearing
D  Tapered roller - bearing

Answer: C  Roller bearing