407. Bending operation should be performed
A.Parallel to the grain direction
B.At 30° to the grain direction
C.At right angle to the grain direction
D.There is no such criterion

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408. In bending operation, the metal takes shape of
A.Die
B.Punch
C.Average of two
D.Could take any shape

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409. In blanking operation, the clearance is provided on
A.Die
B.Punch
C.Half on die and half on punch
D.May be provided on any member

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410. Most practical Method of taking care of spring back during bending is to
A.Try a sample, make the necessary adjustments and try again
B.Punching the inside comer of bend
C.Use hollow concave punches
D.Undercutting the punch so that the material is free to over bend

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411. The velocity of operation in power drop hammer is of the order of
A.0.1 to 0.8 m/sec
B.0.8 to 1.5 m/sec
C.1.5 to 3.0 m/sec
D.3.0 to 9.0 m/sec

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412. The choice of the right band saw blade for a particular job is determined by the
A.Blade set
B.Straddling speed
C.Type of material to be cut
D.Blade temper

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413. Under what conditions do band saws cut best?
A.High speed and light feed
B.High speed and heavy feed
C.Slow speed and light feed
D.Slow speed and heavy feed

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