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Production Engineering
Comments
Question
Drilling is an example of
Options
A. orthogonal cutting
B. oblique cutting
C. simple cutting
D. uniform cutting
Correct Answer
oblique cutting
Production Engineering problems
Search Results
1. The cutting tool in a milling machine is mounted on
Options
A. spindle
B. arbor
C. column
D. knee
Show Answer
Scratch Pad
Discuss
Correct Answer: arbor
2. The lead screw of a lathe has __________ threads.
Options
A. single start
B. double start
C. multi-start
D. any one of these
Show Answer
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Discuss
Correct Answer: single start
3. The tool made of cemented carbide wear out faster at
Options
A. slow speeds
B. medium speeds
C. fast speeds
D. very fast speeds
Show Answer
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Discuss
Correct Answer: slow speeds
4. During adiabatic saturation process on unsaturated air __________ remains constant.
Options
A. relative humidity
B. dew point temperature
C. dry bulb temperature
D. wet bulb temperature
Show Answer
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Discuss
Correct Answer: wet bulb temperature
5. Which of the following statement is wrong?
Options
A. The heat transfer in liquid and gases takes place according to convection.
B. The amount of heat flow through a body is dependent upon the material of the body.
C. The thermal conductivity of solid metals increases with rise in temperature,
D. Logarithmic mean temperature difference is not equal to the arithmetic mean temperature difference.
Show Answer
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Discuss
Correct Answer: The thermal conductivity of solid metals increases with rise in temperature,
6. 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
Show Answer
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Discuss
Correct Answer: 60° to 80°
7. 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
Show Answer
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Discuss
Correct Answer: 20 to 30 m/min
8. 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
Show Answer
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Discuss
Correct Answer: by which the face of the tool is inclined sideways
9. 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
Show Answer
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Discuss
Correct Answer: cermet, carbide, ceramic, borazon
10. 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
Show Answer
Scratch Pad
Discuss
Correct Answer: low tool-chip contact area
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