Advanced Manufacturing Processes (3161922) MCQs

MCQs of Unconventional Machining Processes

Showing 21 to 30 out of 42 Questions
1 2 3 4 5
21.
Laser beam machining process can be used for
(a) Conductors
(b) Insulators
(c) Metals
(d) All of the mentioned
Answer:

Option (d)

22.
In the laser beam machining process, as compared to other unconventional machining processes, the heat-affected zone is
(a) larger
(b) smaller
(c) not present
(d) none of the mentioned
Answer:

Option (b)

23.
For machining of plastic material which of the unconventional process can be used effectively?
(a) Electro chemical machining
(b) Electron beam machining
(c) Laser beam machining
(d) None of the mentioned
Answer:

Option (c)

24.
In laser beam machining process lens is used to
(a) deflect laser beams
(b) diverge laser beams
(c) converge laser beams
(d) none of the mentioned
Answer:

Option (c)

25.

Ultra-sonic machining is best suited for

(a)

tool steels
(b)

sintered carbides
(c)

glass
(d)

all of the mentioned
Answer:

Option (d)

26.
In ultra-sonic machining, the tool is made of
(a) tungsten carbide
(b) brass or copper
(c) diamond
(d) stainless steel
Answer:

Option (b)

27.
Which of the following statement is wrong about ultra-sonic machining?
(a) It is best suited for machining hard and brittle materials.
(b) It cuts materials at very slow speeds.
(c) It removes a large amount of material.
(d) It produces a good surface finish.
Answer:

Option (c)

28.
In ultra-sonic machining, the metal is removed by
(a) using abrasive slurry between the tool and work
(b) direct contact of the tool with the work
(c) maintaining an electrolyte between the work and tool in a very small gap between the two
(d) erosion caused by rapidly recurring spark discharges between the tool and work
Answer:

Option (a)

29.
The abrasive slurry used in ultra-sonic machining contains fine particles of
(a) aluminium oxide
(b) boron carbide
(c) silicon carbide
(d) any one of these
Answer:

Option (d)

30.
The element of the machine which is used to convert high-frequency electrical impulse into mechanical vibration in USM is known as
(a) tool
(b) feeding unit
(c) transducer
(d) none of the mentioned
Answer:

Option (c)

Showing 21 to 30 out of 42 Questions
1 2 3 4 5