A Best Way To Crack Gorenment Job Exams

Mechanical Engineering Objective Questions { Production Technology }

890. The finish of a ground surface could be poor due to
A.Low rpm
B.Dulling of the abrasive grains
C.Unbalanced wheel
D.Using soft wheel
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891. In centreless grinding operation, the regulating wheel is inclined at
A.0 - 8°
B.9 - 12°
C.12 - 15°
D.15 - 20°
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892. The hardness or softness of a grinding wheel is determined by
A.Hardness of abrasive
B.Hardness of bond
C.Wheel structure
D.Amount and kind of bonding material used
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893. Lapping, honing etc. are following type of machining processes
A.High speed abrasive
B.Low speed abrasive
C.Medium speed abrasive
D.Large material removal
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894. For lapping operation, it is customary to leave only following amount of stock to be removed
A.0.001 to 0.01 mm
B.0.01 to 0.1 mm
C.0.1 to 0.5 mm
D.0.5 to 1.0 mm
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895. Honing operation
A.Can be used to change the location of hole or correct a sloped condition of a hole
B.Can't be used for the application in (A) above
C.Above application is possible under some circumstances
D.Above application depends upon the size of hole
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896. Accuracy of measuring equipment is
A.The closeness with which a measurement can be read directly from a measuring instrument
B.A measure of how close the reading is to the true size
C.The difference between measured value and actual value
D.The smallest change in measurand that sail be measured
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