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Quiz 1
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Q.1
Which of the following is true about USM?
a) In USM, tool needs to be changed frequently
b) USM consumes less power
c) USM can be used for soft materials
d) In USM, workpiece is vibrated at ultrasonic frequency
Q.2
In USM, the bottom surfaces of blind holes tend to become concave due to _____
a) insufficient slurry circulation
b) resistance to abrasive particles
c) ineffective slurry circulation
d) high frequency of the vibrations
Q.3
Which of the following pumps is used in USM?
a) Re-circulating pump
b) Centrifugal pump
c) Vane pump
d) Reciprocating pump
Q.4
Which of the following is not a part of the ultrasonic machine used in USM?
a) Generator
b) Acoustic head
c) Slurry pump
d) Lead-screw
Q.5
The primary purpose of the transducer is _____
a) to make uniform mixture of the slurry and the abrasive particles
b) to take filter the slurry after the operation
c) to convert energy
d) to cool the tool
Q.6
The acoustic head consists of how many parts?
a) 2
b) 3
c) 4
d) 5
Q.7
Which of the following is not the alternative name for the trunk in USM?
a) horn
b) concentrator
c) shaft
d) shank
Q.8
Tool in USM is subjected to vibratory loads.
a) True
b) False
Q.9
The tool is joined to the trunk by _____
a) riveted joint
b) welded joint
c) brazing
d) honing
Q.10
Tool geometry does not affect the performance of the USM process.
a) True
b) False
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