A Best Way To Crack Gorenment Job Exams

Mechanical Engineering Objective Questions { Production Technology }



771. Honing operation produces normal quality of finish of the order of
A.0.01 to 0.08 μm CLA value
B.0.08 to 0.2 μm CLA value
C.0.2 to 0.4 μm CLA value
D.0.4 to 0.8 μm CLA value
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772. A 5 mm thick shoulder on a 100 mm diameter shaft will be ground by the following operation
A.Cylindrical grinding
B.Centreless grinding
C.Plunge grinding
D.Surface grinding
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773. When the area of contact between wheel and work is small, then following grade should be used for grinding wheel
A.Harder
B.Hardest
C.Medium
D.Softer
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774. The standard marking system for grinding wheels has following number of symbols
A.1
B.2
C.4
D.5
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775. A grinding wheel is balanced as follows so that it will not vibrate
A.Putting balancing weights on the wheel
B.Enlarging the spindle hole
C.Using wheel dampers
D.Dressing the wheel with dressing tool
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776. The operation of sharpening a grinding wheel is called
A.Trueing
B.Dressing
C.Aligning
D.Balancing
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777. The most popular chuck used on surface grinders is
A.Pneumatic chuck
B.Hydraulic chuck
C.Three-jaw chuck
D.Magnetic chuck
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