1) The Laser Beam Machining process can be carried out, when the media for energy transfer between tool and workpiece is
a. air
b. liquid
c. vacuum
d. any of the above medium
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Answer
Explanation
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ANSWER: any of the above medium
Explanation:
No explanation is available for this question!
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2) What is the reason for using unconventional or advanced machining processes?
a. Complex surfaces
b. High accuracy and surface finish
c. High strength alloys
d. All of the above
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Answer
Explanation
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ANSWER: All of the above
Explanation:
No explanation is available for this question!
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3) Which of the following is not a media of energy transfer on which the advanced machining processes are classified?
a. Reactive atmosphere
b. Electrons
c. Electrolyte
d. Chemical ablation
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Answer
Explanation
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ANSWER: Chemical ablation
Explanation:
No explanation is available for this question!
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4) The spark gap in Electrical Discharge Machining (EDM) process is maintained such that
a. the gap voltage is around 99% of supply voltage
b. the gap voltage is around 70% of supply voltage
c. the gap voltage is around 50% of supply voltage
d. the gap voltage is around 10% of supply voltage
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Answer
Explanation
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ANSWER: the gap voltage is around 70% of supply voltage
Explanation:
No explanation is available for this question!
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5) Which of the following materials is/are used for Electrical Discharge Machining (EDM) process?
a. Brass
b. Copper
c. Graphite
d. All of the above
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Answer
Explanation
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ANSWER: All of the above
Explanation:
No explanation is available for this question!
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6) In Electrical Discharge Machining (EDM) process the metal removal is carried out by
a. electrolysis
b. melting and vaporisation
c. fracture of work material due to impact of grains
d. none of the above
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Answer
Explanation
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ANSWER: melting and vaporisation
Explanation:
No explanation is available for this question!
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7) Which of the following statements are true for Electro-Chemical Machining (ECM)?
1. ECM is capable of machining metals and alloys irrespective of their strength and hardness
2. No cutting forces are involved in ECM process
3. ECM process consumes very high power
4. Very small space is required to set up ECM process
a. (1), (2) and (3)
b. (2), (3) and (4)
c. (1), (3) and (4)
d. (1), (2) and (4)
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Answer
Explanation
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ANSWER: (1), (2) and (3)
Explanation:
No explanation is available for this question!
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8) In which process the material is removed due to the action of abrasive grains?
a. Electro-Chemical Grinding (ECG)
b. Ultrasonic Machining (USM)
c. Laser Beam Machining (LBM)
d. Electrical Discharge Machining (EDM)
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Answer
Explanation
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ANSWER: Ultrasonic Machining (USM)
Explanation:
No explanation is available for this question!
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9) Which of the following processes is generally applied for dentistry work like to drill fine holes of particular shape in teeth?
a. Electrical Discharge Machining (EDM)
b. Electron Beam Machining (EBM)
c. Laser Beam Machining (LBM)
d. Ultrasonic Machining (USM)
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Answer
Explanation
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ANSWER: Ultrasonic Machining (USM)
Explanation:
No explanation is available for this question!
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10) Which of the following process has highest rate of metal removal?
a. Electric Discharge Machining (EDM)
b. Electro-Chemical Machining (ECM)
c. Ultrasonic Machining (USM)
d. Laser Beam Machining (LBM)
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Answer
Explanation
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ANSWER: Electro-Chemical Machining (ECM)
Explanation:
No explanation is available for this question!
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