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What is the function of lead as an alloying element ?
A) To improve strength and toughness

B) To increase the elastic limit of steel
C) To improve machinability
D) To improve hardness

Which of the following is a part of Taly-surf ?
A) Stylus B) Motor race
C) Analyser D) All of the above

Roughness value 0.2 to 0.8 microns is indicated by which symbol ?
A) One inverted triangle B) Two inverted triangles
C) Three inverted triangles D) Four inverted triangles

When a circle is added to the basic symbol of two legs of unequal length inclined at
approximately 60°, what is meant by the surface symbol indication ?

A) Material removal by machining is required
B)
C) Material addition is required
D)

The material removal is not permitted

Any machining method can be used

Which of the following process give maximum surface finish ?
A) Honing B) Sand casting
C) Burnishing D) Lapping

The lines or patterns on the work surface caused by the movement of the cutting
tool is called

A) Roughness B) Waviness
C) Surface texture D) Lay

The quantity of heat required to change unit mass of substance completely from one
state in to another at constant temperature is

A) Specific heat B) Heat capacity
C) Latent heat D) Molar specific heat