Multiple Choice
Trepanning operation is used for
A) Producing large holes
B) Under cutting
C) Cutting grooves
D) Finishing the ends of the job
E) Bevelling the edges
Correct Answer:
Verified
Correct Answer:
Verified
Q39: Carbondioxide is<br>A)Neutral gas<br>B)Combustible gas<br>C)Rare gas<br>D)Inactive gas<br>E)Ionic gas
Q40: Weld spatter is<br>A)A flux<br>B)A filler material used
Q41: In all the following case chips produced
Q42: Necking is<br>A)Preparation of surface for brazing<br>B)Hole drilled
Q43: Cutting speeds for some materials are given
Q45: In centreless grinding, work piece is clamped
Q46: The commonly used material for thermocouples is<br>A)Chromel-copper<br>B)Chromel-alumel<br>C)Platinum-rhodium<br>D)Any
Q47: While machining cast iron generally cutting fluid
Q48: The advantage of electronically operated automatic control
Q49: Straight fluted drills are used for<br>A)Amorphous materials<br>B)Ferrous