Q. In hot machining, the work is heated by

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Q. An open structure of a grinding wheel is used for

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Q. A twist drill is specified by its

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Q. The hole to be drilled for tapping is __________ the outside diameter of the thread on the tap.

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Q. Glazing in grinding wheels takes place when the

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Q. Low helix angle drills are preferred for drilling holes in

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Q. Dielectric is used in

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Q. The type of reamer used for reaming soft aluminium or copper, is

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Q. The tool material, for faster machining, should have

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Q. The helix angle of a drill is more than 30° for drilling aluminium.

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Q. In a single point turning operation with a cemented carbide and steel combination having a Taylor exponent of 0.25, if the cutting speed is halved, then tool life will become

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Q. The tap used to cut threads in a blind hole is

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Q. A jig is defined as a device which

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Q. A mandrel is used to hold

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Q. Jigs are used

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Q. The swing diameter over carriage is always less than the swing diameter over bed.

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Q. The plain milling machine is more rigid and heavier in construction than a universal milling machine of the same size.

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Q. An operation of embossing a diamond shaped pattern on the surface of a workpiece, is known as

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Q. An operation of enlarging the end of a hole cylindrically is known as grooving.

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Q. Which of the following statement is wrong?

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