Engineering :: Production Engineering
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451. |
Which of the following process needs high voltage for its operation? |
A. |
Ultrasonic machining |
B. |
Abrasive jet machining |
C. |
Electron beam machining |
D. |
Electro chemical machining |
E. |
Plasma arc machining |
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Answer: Option C
Explanation:
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452. |
The surface finish obtainable in ultrasonic machining is of the order of |
A. |
0.2 to 0.5 |
B. |
2 to 5 |
C. |
20 to 50 |
D. |
200 to 500 |
E. |
500 to 1000 |
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Answer: Option A
Explanation:
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453. |
The surface finish obtainable in abrasive jet machining is of the order of |
A. |
0.5 to 1.2 |
B. |
2 to 5 |
C. |
12 to 20 |
D. |
20 to 50 |
E. |
50 to 100 |
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Answer: Option A
Explanation:
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454. |
Which of the following process has least power consumption in kW/cm2/min? |
A. |
Plasma arc machining |
B. |
Laser beam machining |
C. |
Ultrasonic machining |
D. |
Electro discharge machining |
E. |
Abrasive jet machine |
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Answer: Option A
Explanation:
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455. |
Which of the following process has highest power consumption in kW/cm2/min? |
A. |
Ultrasonic machining |
B. |
Plasma arc machining |
C. |
Electron beam machining |
D. |
Electro chemical machining |
E. |
Abrasive jet machining |
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Answer: Option C
Explanation:
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456. |
Which of the following process needs high current for its operation? |
A. |
Ultrasonic machining |
B. |
Abrasive machining |
C. |
Electro chemical machining |
D. |
Electric discharge machining |
E. |
Electron beam machining |
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Answer: Option C
Explanation:
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457. |
In abrasive jet machining the achievable tolerances are nearly |
Answer: Option C
Explanation:
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458. |
In plasma arc machining the achievable tolerances are nearly |
Answer: Option E
Explanation:
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459. |
Which of the following non-traditional machining process will have inferior surface finish as compared to the remaining processes? |
A. |
Ultrasonic machining |
B. |
Plasma arc machining |
C. |
Electro discharge machining |
D. |
Electron beam machining |
E. |
Chemical machining |
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Answer: Option B
Explanation:
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460. |
The power consumption in ultrasonic machining in kW/m2/min is of the order of |
A. |
1 kW/m3/min |
B. |
10 kW/m3/min |
C. |
100 kW/m3/min |
D. |
200 kW/m3/min |
E. |
1000 kW/m3/min |
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Answer: Option B
Explanation:
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