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51
In order to have interference fit, it is essential that the lower limit of the shaft should be
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Answer: Option A
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52
The common welding error that occurs due to wrong speed, faulty preparation, and high / low current, improper electrode size is called?
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Answer: Option D
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53
The angle on which the strength of the tool depends is
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Answer: Option A
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54
It is required to cut screw threads of 2 mm pitch on a lathe. The lead screw has a pitch of 6 mm. If the spindle speed is 60 r.p.m., then the speed of lead screw will be
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Answer: Option B
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55
The tool made of cemented carbide wear out faster at
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Answer: Option A
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56
A set of eight form relieved milling cutters for each module is provided to enable cutting of gears of different
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Answer: Option C
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57
A grinding wheel is said to be of _________ if the abrasive grains can be easily dislodged.
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Answer: Option A
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58
Dielectric is used in
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Answer: Option C
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59
In electro-discharge machining, dielectric is used to
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Answer: Option D
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60
The hard grade grinding wheels are denoted by the letters
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Answer: Option C
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