FITTER (THEORY) SEMESTER - III February 2016

FITTER (THEORY) SEMESTER - III

February 2016

What is used to test an external taper?
A  Taper plug gauge
B  Taper ring gauge
C  Slip gauge
D  Thread gauge

Answer: B  Taper ring gauge

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The largest diameter of a screw thread is

known as................

A  minor diameter
B  normal diameter
C  major diameter
D  pitch diameter

Answer: C  major diameter

The power is transmitted by lead screw to

the carriage through...........

A  gear system
B  pulley drive

C  rack and pinion arrangement
D  half nut

Answer: D  half nut

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In which operation on a workpiece
the spindle speed will be least?

A  Parting off

B  Thread cutting

C Finishing

D  Taper turning

Answer: B  Thread cutting

Steady rest is..............

A  an additional support provided for long jobs
B  used while turning un symmetrical objects
C  used during thread cutting only
D  used when a lathe is subjected to vibrations

Answer: A  an additional support provided for long jobs

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The work having finished hole, is mounted

on...........

A  face plate
B  collet chuck
C  mandrel
D  four jaw chuck

Answer: C mandrel

The basic function of cutting fluids are.....

A  cleaning and lubrication

B  facilitating chip removal and lubrication

C  cools the tool and the workpiece

D  cooling and flushing chips away from the

cutting area

Answer: C  cools the tool and the workpiece

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How many grades of slip gauges an

recommended by BIS - IS: 2984?

A. 2

B. 3

C. 4

D. 5

Answer: B. 3

Slip gauge designated with 'Grade P is used

for.......

A workshop
B inspection
C calibration
D reference

Answer: C calibration

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What must be done to prevent the chuck
from damaging the lathe guide ways, while
mounting?

A  Lift the chuck with a hand crane

B  Ask the instructor for help

C  Place a wooden block or board on guide-
     ways

D   Support with a screw jack

Answer: C  Place a wooden block or board on guide-
     ways