393. Quick return mechanism is used in
A.Milling machine
B.Broaching machine
C.Grinding machine
D.Slotter

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394. Which of the following machines does not require quick return mechanism
A.Slotter
B.Planer
C.Shaper
D.Broaching

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395. The size of a power circular saw is indicated by the
A.Blade diameter
B.Motor horse power
C.Saw weight
D.Number of gullets

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396. Circular saw blades are specified by their diameter, number of teeth, and
A.Gauge
B.Maximum rpm
C.Arbor-hole
D.Number of gullets

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397. In blanking operation, the angle of shear is provided on
A.Die
B.Punch
C.Both on punch and die
D.Not provided at all

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398. The clearance in blanking operation is provided on
A.Die
B.Punch
C.Half on die and half on punch
D.Die or punch depending on material and thickness of sheet

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399. With Increasing angle of shear, the force on punch
A.Increases linearly
B.Decreases linearly
C.Decreases as square of shear angle
D.Increases as square of angle of shear

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