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Wednesday, 29 March 2023

LBM

 Laser Beam Machining


 

What is the full form of LBM in advanced machining processes?

a) Laser Beam Manufacturing        b) Laser Beam Machining   c) Light Blast Manufacturing

d) Light Beam Machining

View Answer

Answer: b

Explanation: The full form of LBM is Laser Beam Machining in the advanced machining processes.

 

LBM offers a good solution for which material properties below?

a) Thermal conductivity      b) Specific heat          c) Boiling temperature         d) All of the mentioned

View Answer

Answer: d

Explanation: LBM offers good solution for material properties such as thermal conductivity, specific heat, melting and boiling temperatures.

 

What is the abbreviation of Laser?

a) Light allowed simple emission of radiation                   b) Light amplification by stimulated emission of radiation

c) Light amplified simultaneous emission of rays             d) Light amplified stimulated emanation of rays

View Answer

Answer: b

Explanation: Full form of laser is Light Amplification by Stimulated emission of radiation.

 

Which of the following are the properties of a laser?

a)     Highly collimated           b) Monochromatic    c) Coherent light beam         d) All of the mentioned

View Answer

Answer: d

Explanation: Highly collimated, high monochromaticity and the coherence of the light beam are the properties of a laser.

 

Laser beam machining uses which type of power sources for machining?

a)     Very low power   b) Low power            c) Medium power      d) High power

View Answer

Answer: d

Explanation: High power densities are used for the generation of laser and for machining in Laser beam machining.

 

Which of the following is not an advantage of LBM?

a)     Rapid machining      b) Low operating cost       c) High equipment cost      d) No tool wear

View Answer

Answer: c

Explanation: Rapid machining, low operating cost and no tool wear are some of the advantages of Laser beam machining.

 

Which of the following systems is used for locating the hole accurately for alignment?

a) Mechanical control system                      b) Optical laser system         c) Measurement system

d) Alignment system

View Answer

Answer: b

Explanation: Holes can be accurately located using optical laser system for alignment in Laser beam machining.

 

Very _____ holes with a _____ aspect ratio can be produced using Laser beam machining.

a)     Small, small                     b) Small, large                       c) Large, small          d) Large, large

View Answer

Answer: b

Explanation: In Laser beam machining, very small holes with large aspect ratios can be produced.

 

How are the machining times in Laser beam machining?

a) Very slow machining times         b) Slow machining times      c) Moderate machining times

d) Fast machining times

View Answer

Answer: d

Explanation: Machining is very much rapid and the setup times are economical in Laser beam machining.

 

 

Ref: https://www.sanfoundry.com/advanced-machining-questions-answers-edm-applications-1/

 

R.Satheesh