Explore topic-wise MCQs in Advanced Machining.

This section includes 39 Mcqs, each offering curated multiple-choice questions to sharpen your Advanced Machining knowledge and support exam preparation. Choose a topic below to get started.

1.

Rise in different parameters related to the MS and ECD lead to ______ material removal rates.

A. Increase in
B. Decrease in
C. Normal
D. All of the mentioned
Answer» B. Decrease in
Discussion
2.

What are the tolerances that are achieved using ECH process?

A. ± 0.001 mm
B. ± 0.002 mm
C. ± 0.003 mm
D. ± 0.004 mm
Answer» D. ± 0.004 mm
Discussion
3.

How much faster is MRR in ECH when compared to the conventional internal grinding?

A. 2 times
B. 4 times
C. 6 times
D. 8 times
Answer» C. 6 times
Discussion
4.

How much faster is MRR in ECH when compared to the conventional honing?

A. 1 to 2 times
B. 2 to 3 times
C. 3 to 5 times
D. 5 to 8 times
Answer» D. 5 to 8 times
Discussion
5.

Tool reciprocation can be used to reduce which of the following effects on work piece?

A. Taper
B. Waviness
C. All of the mentioned
D. None of the mentioned
Answer» D. None of the mentioned
Discussion
6.

What are the surface roughness values obtained while we use ECH process?

A. 0.1 to 0.2 µm
B. 0.2 to 0.8 µm
C. 0.8 to 1.6 µm
D. 1.6 to 3.2 µm
Answer» C. 0.8 to 1.6 µm
Discussion
7.

State whether following statement is true or false regarding the process of ECH.'In ECH, the electro chemical dissolution phase introduces stresses.'

A. True
B. False
Answer» C.
Discussion
8.

State whether following statement is true or false regarding applications of ECH.'In ECH, the roundness errors are reduced compared to other processes.'

A. True
B. False
Answer» B. False
Discussion
9.

What is the value of gap maintained in ECH?

A. 0.025 to 0.075 mm
B. 0.075 to 0.250 mm
C. 0.250 to 0.750 mm
D. 0.750 to 2.50 mm
Answer» C. 0.250 to 0.750 mm
Discussion
10.

State whether following statement is true or false about ECH process.'In ECH, improper electrolytic distribution will have no effect on any component.'

A. True
B. False
Answer» C.
Discussion
11.

The machining system employs which type of abrasive stone for removal of material?

A. Pulsating
B. Vibrating
C. Reciprocating
D. All of the mentioned
Answer» D. All of the mentioned
Discussion
12.

What are the current density values that are used in ECH process?

A. 165 A/cm2
B. 235 A/cm2
C. 385 A/cm2
D. 465 A/cm2
Answer» E.
Discussion
13.

State whether following statement is true of false regarding ECG process.'In ECG process, filtering and disposal of electrolyte is not necessary.'

A. True
B. False
Answer» C.
Discussion
14.

Surface finish in ECG depend on which of the following factors?

A. Metal machined
B. Abrasive size
C. Wheel speed
D. All of the mentioned
Answer» E.
Discussion
15.

Which of the following are the disadvantages of ECG process?

A. High capital cost
B. Limited to conductive materials
C. Corrosive nature
D. All of the mentioned
Answer» E.
Discussion
16.

What are the values of radii of corners obtained in ECG?

A. 0.15 to 0.225 mm
B. 0.25 to 0.375 mm
C. 0.45 to 0.525 mm
D. 0.55 to 0.675 mm
Answer» C. 0.45 to 0.525 mm
Discussion
17.

What are the values of voltages used for better surface quality?

A. 1 - 2 V
B. 2 - 3 V
C. 3 - 5 V
D. 5 - 8 V
Answer» D. 5 - 8 V
Discussion
18.

Which type of voltages are recommended for closer tolerances in ECG?

A. Low
B. Moderate
C. High
D. Very high
Answer» B. Moderate
Discussion
19.

What are the values of accuracies obtained in ECG process?

A. ± 0.025 mm
B. ± 0.125 mm
C. ± 0.225 mm
D. ± 0.325 mm
Answer» C. ± 0.225 mm
Discussion
20.

What are the applications of Electro chemical grinding process?

A. Milling the material
B. Tool and cutter sharpening
C. Cutting off
D. All of the mentioned
Answer» E.
Discussion
21.

What are the machining speeds recommended for high surface quality?

A. 1 - 250 mm/min
B. 250 - 500 mm/min
C. 500 - 750 mm/min
D. 750 - 100 mm/min
Answer» C. 500 - 750 mm/min
Discussion
22.

What are the advantages of machining in Electro chemical grinding?

A. Good surface quality
B. Absence of distortion
C. Longer wheel life
D. All of the mentioned
Answer» E.
Discussion
23.

Mechanical abrasion counts to how much amount of the material removal in ECG?

A. 1 to 5%
B. 5 to 10%
C. 10 to 15%
D. 15 to 20%
Answer» C. 10 to 15%
Discussion
24.

Under special circumstances what are the tolerances obtained?

A. ± 0.02 mm
B. ± 0.04 mm
C. ± 0.06 mm
D. ± 0.08 mm
Answer» E.
Discussion
25.

How much amount of burr is produce in Electro chemical grinding process?

A. Less amount
B. Moderate amount
C. High amount
D. No burrs are produced
Answer» E.
Discussion
26.

What are the production tolerances obtained in ECG process?

A. ± 0.005 mm
B. ± 0.015 mm
C. ± 0.025 mm
D. ± 0.035 mm
Answer» D. ± 0.035 mm
Discussion
27.

What are the tolerance value that are obtained by using ECG process?

A. ± 0.01 mm
B. ± 0.03 mm
C. ± 0.05 mm
D. ± 0.07 mm
Answer» C. ± 0.05 mm
Discussion
28.

What are the volumetric removal rates that are obtained in ECG process?

A. 400 mm3/min
B. 800 mm3/min
C. 1600 mm3/min
D. 3200 mm3/min
Answer» D. 3200 mm3/min
Discussion
29.

ECG is a hybrid machining process of which material removal mechanisms below?

A. Mechanical abrasion
B. Electro chemical dissolution
C. All of the mentioned
D. None of the mentioned
Answer» D. None of the mentioned
Discussion
30.

Removal rates of ECG process are how may time to that of the conventional machining processes?

A. 2 times
B. 3 times
C. 4 times
D. 5 times
Answer» D. 5 times
Discussion
31.

The tolerance values in ECG depend on which of the following factors?

A. Electrolyte flow
B. Feed rate
C. Metallurgy of material
D. All of the mentioned
Answer» E.
Discussion
32.

Action of abrasive grains depend on which of the following factors?

A. Electric filed
B. Transport of electrolyte
C. Hydrodynamic effects
D. All of the mentioned
Answer» E.
Discussion
33.

What is the main mechanism of material removal in Electro chemical grinding?

A. Mechanical erosion of material
B. Electro chemical dissolution
C. Melting and vaporization
D. Electron removal from material
Answer» C. Melting and vaporization
Discussion
34.

The grinding wheel is _____ and the work piece is ____ in ECG process.

A. Cathode, anode
B. Anode, cathode
C. Cathode, cathode
D. Anode, anode
Answer» B. Anode, cathode
Discussion
35.

State whether following statement is true or false regarding the material removal in ECG.'In ECG, material removal is not continuous using abrasive.'

A. True
B. False
Answer» C.
Discussion
36.

What is the value of gap voltage maintained in ECG process?

A. 1 to 10 V
B. 4 to 40 V
C. 40 to 400 V
D. 500 to 5000 V
Answer» C. 40 to 400 V
Discussion
37.

Current density depends on which of the following factors?

A. Machined material
B. Gap width
C. Applied voltage
D. All of the mentioned
Answer» E.
Discussion
38.

What are the values of current densities used in the ECG process?

A. 1 to 60 A/cm2
B. 60 to 120 A/cm2
C. 120 to 240 A/cm2
D. 240 to 480 A/cm2
Answer» D. 240 to 480 A/cm2
Discussion
39.

Which of the following electrolytes can be used for high speed polishing?

A. Sodium chloride
B. Sodium nitrate
C. All of the mentioned
D. None of the mentioned
Answer» B. Sodium nitrate
Discussion