Manufacturing And Production Technology - Study Mode

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[#126] The hardness of a grinding wheel is specified by

(A) Brinell hardness number

(B) Rockwell hardness number

(C) Vickers pyramid number

(D) Letter of alphabet

Correct Answer

(D) Letter of alphabet

[#127] In machining metals, surface roughness is due to

(A) Feed marks or ridges left by the cutting tool

(B) Fragment of built-up edge on the machined surface

(C) Cutting tool vibrations

(D) All of these

Correct Answer

(D) All of these

[#128] For turning internal tapers, the suitable method is

(A) By a form tool

(B) By setting over the tail stock

(C) By a taper turning attachment

(D) By swiveling the compound rest

Correct Answer

(C) By a taper turning attachment

[#129] For turning small taper on long workpiece, the suitable method is

(A) By a form tool

(B) By setting over the tail stock

(C) By a taper turning attachment

(D) By swiveling the compound rest

Correct Answer

(B) By setting over the tail stock

[#130] In oblique cutting system, the maximum chip thickness

(A) Occurs at the middle

(B) May not occur at the middle

(C) Depends upon the material of the tool

(D) Depends upon the geometry of the tool

Correct Answer

(B) May not occur at the middle