Questions
61
Hard, tough, fragile and heat sensitive metals can be processed by
Answer: Electrical discharge machining
63
In following operations are to be performed on a job, which one would be performed first
Answer: Drilling
64
A 12 mm drilling machine means
Answer: It can drill holes maximum 12 mm in diameter
65
Which one of the following methods can be used for turning external tapers only?
Answer: Tail stock offset
66
Standard taper generally used on milling machine spindles is
Answer: Brown and Sharpe taper
67
In a 32A 49-H 8V BE grinding wheel the grit size is represented by
Answer: 46
68
In climb milling
Answer: Work moves in same direction as rotation of the cutter
69
Which one of the following methods cannot be used for turning internal tapers?
Answer: Tail stock offset
72
In a turret lathe a pre-selector is a device
Answer: That is used to pre-select the spindle speed for the next operation in progress
73
Kind of tools used to undercut corners on a job that is to be hardened and ground is
Answer: Roundnose tool
74
Undercutting is
Answer: An operation of cutting a groove next to a shoulder on a piece of work
77
Gear tooth vernier is used to measure
Answer: Pitch line thickness of gear tooth
79
When large number of components are turned and parted off from a bar, the chuck used is
Answer: Rubber asbestos type
80
While machining a brass casting on a lathe, the type of chuck used is
Answer: Four jaw chuck
