Advanced Machining Questions and Answers – Ultrasonic Machining – Introduction

This set of Advanced Machining Processes Multiple Choice Questions & Answers (MCQs) focuses on “Ultrasonic Machining – Introduction”.

1. Who discovered USM?
a) Balamuth
b) Paul O Flawer
c) Turing
d) Steve John
View Answer

Answer: a
Explanation: Balamuth was the scientist, who discovered Ultrasonic Machining.

2. What is the full form of USM in advanced machining process?
a) Ultrasound manufacturing
b) Ultrasonic machining
c) UV spectrum manufacturing
d) Ultra sonar machining
View Answer

Answer: b
Explanation: Full form of USM in advanced machining processes, is Ultrasonic machining.

3. USM removes materials using the ____________ tool.
a) Perpendicularly rotating
b) Perpendicularly oscillating
c) Axially oscillating
d) Inclined oscillating
View Answer

Answer: c
Explanation: Material is removed using axial oscillating tool.

4. Which is softer material in USM?
a) Tool
b) Work piece
c) Tool & Work piece
d) None of the mentioned
View Answer

Answer: a
Explanation: Tool is softer than work piece in USM.

5. Frequency of tool’s oscillation in USM ranges between ________
a) 5-10 kHz
b) 10-15 kHz
c) 18-20 kHz
d) 25-50 kHz
View Answer

Answer: c
Explanation: Frequency used in USM is between 18 – 20 kHz.
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6. Amplitude of oscillation of tool in USM ranges between ________
a) 0.1-10 μm
b) 10-40 μm
c) 50-100 μm
d) 100-1000 μm
View Answer

Answer: b
Explanation: The optimal range used is between 10-40 μm.

7. In which year, discovery of USM took place?
a) 1910
b) 1925
c) 1943
d) 1945
View Answer

Answer: d
Explanation: Ultrasonic Machining was discovered in 1945.

Sanfoundry Global Education & Learning Series – Advanced Machining.

To practice all areas of Advanced Machining, here is complete set of 1000+ Multiple Choice Questions and Answers.


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Manish Bhojasia - Founder & CTO at Sanfoundry
Manish Bhojasia, a technology veteran with 20+ years @ Cisco & Wipro, is Founder and CTO at Sanfoundry. He lives in Bangalore, and focuses on development of Linux Kernel, SAN Technologies, Advanced C, Data Structures & Alogrithms. Stay connected with him at LinkedIn.

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