855. Bottoming tap is used
A.For most of the threading applications
B.For threading in bottom surface
C.Only for threading in blind holes
D.Does not exists

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856. A tool used in cutting external threads is called a
A.Twist drill
B.Tap
C.Die
D.End mill

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857. Following type of reamer is used for soft aluminium or copper
A.Straight fluted
B.Left hand spiral fluted
C.Right hand spiral fluted
D.Bottoming reamer

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858. Following type of reamer is used for blind hole
A.Straight fluted
B.Left hand spiral fluted
C.Right hand spiral fluted
D.Bottoming reamer

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859. Screw threads may be cut on a 10 mm dia, steel rod by using
A.A circular split die
B.A set of taps
C.A drill and a reamer
D.A knurling tool

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860. Fluteless taps
A.Are not round
B.Form threads with no chips
C.Both (A) and (B) above
D.Do not exist

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861. For setting the heads of socket-head cap screw flush or below the surface, following operation is required
A.Counter boring
B.Counter sinking
C.Spot facing
D.Reaming

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