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
856. A tool used in cutting external threads is called a
A.Twist drill
B.Tap
C.Die
D.End mill
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
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
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
860. Fluteless taps
A.Are not round
B.Form threads with no chips
C.Both (A) and (B) above
D.Do not exist
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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