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Production Engineering
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Question
The correct sequence of tool materials in increasing order of their ability to retain their hot hardness is
Options
A. carbide, ceramic, cermet, borazon
B. ceramic, carbide, borazon, cermet
C. cermet, carbide, ceramic, borazon
D. borazon, ceramic, carbide, cermet
Correct Answer
cermet, carbide, ceramic, borazon
Production Engineering problems
Search Results
1. Side rake angle of a single point cutting tool is the angle
Options
A. by which the face of the tool is inclined towards back
B. by which the face of the tool is inclined sideways
C. between the surface of the flank immediately below the point and a plane at right angles to the centre line of the point of the tool
D. between the surface of the flank immediately below the point and a line drawn from the point perpendicular to the base
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Correct Answer: by which the face of the tool is inclined sideways
2. The work or surface speed for cylindrical grinding varies from
Options
A. 5 to 10 m/min
B. 10 to 20 m/min
C. 20 to 30 m/min
D. 40 to 60 m/min
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Correct Answer: 20 to 30 m/min
3. The lip angle of a single point tool is usually
Options
A. 20° to 40°
B. 40° to 60°
C. 60° to 80°
D. none of these
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Correct Answer: 60° to 80°
4. Drilling is an example of
Options
A. orthogonal cutting
B. oblique cutting
C. simple cutting
D. uniform cutting
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Correct Answer: oblique cutting
5. The cutting tool in a milling machine is mounted on
Options
A. spindle
B. arbor
C. column
D. knee
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Correct Answer: arbor
6. The machining of titanium is difficult due to
Options
A. high thermal conductivity of titanium
B. chemical reaction between tool and work
C. low tool-chip contact area
D. none of these
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Correct Answer: low tool-chip contact area
7. The silicon carbide abrasive is chiefly used for grinding
Options
A. cemented carbide
B. ceramic
C. cast iron
D. all of these
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Correct Answer: all of these
8. A drill considered as a cutting tool having zero rake, is known as a
Options
A. flat drill
B. straight fluted drill
C. parallel shank twist drill
D. tapered shank twist drill
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Correct Answer: straight fluted drill
9. Segmental chips are formed during machining
Options
A. mild steel
B. cast iron
C. high speed steel
D. high carbon steel
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Correct Answer: cast iron
10. The velocity of tool relative to the workpiece is known as cutting velocity.
Options
A. True
B. False
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Correct Answer: True
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