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Following hammer is made up of wood

A) Cross peen hammer B) Claw hammer
C) Mallet D) All of the above
Which of the following is not included in scrap used for melting ?
A) Risers B) Billets

C) Defective castings D) Gates

Projection welding is a
A) Multi spot welding process B) Continuous spot welding process
C) Arc welding process D) Process used for joining round bars

Scribing block is used to
A) Hold the round bars during marking B) Check the trueness of flat surfaces
C) Locate the centres of round bars D) Check the surface roughness

The lip angle of a single point tool is usually

A) 20° to 40° B) 40° to 60° C) 60° to 80° D) 80° to 100°
A drill considered as a cutting tool having zero rake, is known as

A) Flat drill B) Straight fluted drill

C) Parallel shank twist drill D) Tapered shank twist drill

The process of removing metal by a cutter which is rotated against the direction of
travel of the workpiece

A) Peripheral milling B) Face milling
C) Downmiling D) Upmilling

Buffing wheels are made of
A) Cotton fabric B) Softer metals C) Carbon D) Graphite

In lapping operation, the amount of metal removed is

A) 0.01 to 0.1 mm B) 0.05 to 0.1 mm

C) 0.005 to 0.01 mm D) 0.5 to 1mm

The tool life increases with the

A) Decrease in back rake angle B) Decrease in nose radius

C) Decrease in side rake angle D) Increase in end cutting edge angle