Question 1

Which of the following is not correct about submerged arc welding?

Accepted Answer

A) high deposition rate 
B) short set-up time 
C) high quality welds 
D) slag removal needed 
A) high deposition rate 
B) short set-up time 
C) high quality welds 
D) slag removal needed B

Question 2

In order to prevent oxidation and retain molten metal in stud welding which of the following is used?

Accepted Answer

A) ceramic rings 
B) metal rings 
C) non-metal rings 
D) flux 
A) ceramic rings 
B) metal rings 
C) non-metal rings 
D) flux A

Question 3

Why hydrogen not used excessively for welding?

Accepted Answer

A) increases welding rate 
B) decreases welding rate 
C) destroys the metal plate 
D) affects the weld 
A) increases welding rate 
B) decreases welding rate 
C) destroys the metal plate 
D) affects the weld D

Question 4

Which of the following gas welding process uses constant voltage?

Accepted Answer

A) submerged arc welding 
B) tungsten inert gas welding 
C) stud welding 
D) gas metal arc welding 
A) submerged arc welding 
B) tungsten inert gas welding 
C) stud welding 
D) gas metal arc welding

Question 5

What is the minimum power supply needed for the working of spot welding process?

Accepted Answer

A) 10 kva 
B) 14 kva 
C) 6 kva 
D) 22 kva 
A) 10 kva 
B) 14 kva 
C) 6 kva 
D) 22 kva

Question 6

Which of the following welding process is preferred for field application?

Accepted Answer

A) shielded metal arc welding 
B) submerged arc welding 
C) gas-shielded metal arc welding 
D) flux core arc welding 
A) shielded metal arc welding 
B) submerged arc welding 
C) gas-shielded metal arc welding 
D) flux core arc welding

Question 7

If the total efficiency is 0.35 in arc welding. Then what is the welding speed in mm/sec if the cross-sectional area is 5mm2, welding power is 2 kW and the heat required in melting the metal is 100 J/mm3.

Accepted Answer

A) 1.4 
B) 14 
C) 1400 
D) 140 
A) 1.4 
B) 14 
C) 1400 
D) 140

Question 8

What is the differentiating factor between flux core arc welding and gas-shielded metal arc welding processes?

Accepted Answer

A) structure and chemical composition of electrode 
B) structure and chemical composition of metal plate 
C) time of welding 
D) process of welding 
A) structure and chemical composition of electrode 
B) structure and chemical composition of metal plate 
C) time of welding 
D) process of welding

Question 9

Which of the following is true about flux core arc welding?

Accepted Answer

A) low deposition rate 
B) cannot weld narrow angles 
C) slag removal required 
D) generates less volume of fumes and smoke. 
A) low deposition rate 
B) cannot weld narrow angles 
C) slag removal required 
D) generates less volume of fumes and smoke.

Question 10

Which of the following can be easily be welded from flash butt welding process?

Accepted Answer

A) tin 
B) lead 
C) cast irons 
D) carbon steel 
A) tin 
B) lead 
C) cast irons 
D) carbon steel

Question 11

Which of the following is true about shielded metal arc welding?

Accepted Answer

A) equipment cost is high 
B) cannot weld different types of metals 
C) cannot be used for metal sheets under 1.5mm thickness 
D) entire electrode can be used 
A) equipment cost is high 
B) cannot weld different types of metals 
C) cannot be used for metal sheets under 1.5mm thickness 
D) entire electrode can be used

Question 12

Upset butt welding is majorly used in the making of automobile parts.

Accepted Answer

A) True 
 B)False

Question 13

Choose the correct option regarding metal- active gas welding?

Accepted Answer

A) not suitable for thin metal sheets 
B) need to stop welding to change the consumed electrode 
C) equipment is not expensive 
D) high deposition rate 
A) not suitable for thin metal sheets 
B) need to stop welding to change the consumed electrode 
C) equipment is not expensive 
D) high deposition rate

Question 14

What is the maximum power supply needed for the working of spot welding process?

Accepted Answer

A) 135 kva 
B) 140 kva 
C) 145 kva 
D) 150 kva 
A) 135 kva 
B) 140 kva 
C) 145 kva 
D) 150 kva

Question 15

Which of the following is not correct about electro slag welding?

Accepted Answer

A) high deposition rates 
B) welds flat or vertical joints only 
C) multiple electrodes may not be used 
D) complicated set-up 
A) high deposition rates 
B) welds flat or vertical joints only 
C) multiple electrodes may not be used 
D) complicated set-up

Question 16

In friction welding process, materials are joined by motion between materials.

Accepted Answer

A) rectilinear 
B) rubbing 
C) translatory 
D) brownian 
A) rectilinear 
B) rubbing 
C) translatory 
D) brownian

Question 17

Which of the following parameters control the quality of weld?

Accepted Answer

A) composition of electrode 
B) size of electrode 
C) size of metal plate 
D) composition of metal plate 
A) composition of electrode 
B) size of electrode 
C) size of metal plate 
D) composition of metal plate

Question 18

Which of the following process does not have high deposition rate?

Accepted Answer

A) shielded metal arc welding 
B) electro slag welding 
C) gas-shielded metal arc welding 
D) flux core arc welding 
A) shielded metal arc welding 
B) electro slag welding 
C) gas-shielded metal arc welding 
D) flux core arc welding

Question 19

If the heat transfer efficiency is 0.5 and the melting efficiency is 0.6, then the overall efficiency will be?

Accepted Answer

A) 0.83 
B) 0.03 
C) 0.30 
D) 0.12 
A) 0.83 
B) 0.03 
C) 0.30 
D) 0.12

Question 20

Which of the following can be non-low hydrogen process?

Accepted Answer

A) shielded metal arc welding 
B) submerged arc welding 
C) gas-shielded metal arc welding 
D) flux core arc welding 
A) shielded metal arc welding 
B) submerged arc welding 
C) gas-shielded metal arc welding 
D) flux core arc welding

Which of the following is not correct about submerged arc welding?

In order to prevent oxidation and retain molten metal in stud welding which of the following is used?

Why hydrogen not used excessively for welding?

Which of the following gas welding process uses constant voltage?

What is the minimum power supply needed for the working of spot welding process?

Which of the following welding process is preferred for field application?

If the total efficiency is 0.35 in arc welding. Then what is the welding speed in mm/sec if the cross-sectional area is 5mm2, welding power is 2 kW and the heat required in melting the metal is 100 J/mm3.

What is the differentiating factor between flux core arc welding and gas-shielded metal arc welding processes?

Which of the following is true about flux core arc welding?

Which of the following can be easily be welded from flash butt welding process?

Which of the following is true about shielded metal arc welding?

Upset butt welding is majorly used in the making of automobile parts.

Choose the correct option regarding metal- active gas welding?

What is the maximum power supply needed for the working of spot welding process?

Which of the following is not correct about electro slag welding?

In friction welding process, materials are joined by motion between materials.

Which of the following parameters control the quality of weld?

Which of the following process does not have high deposition rate?

If the heat transfer efficiency is 0.5 and the melting efficiency is 0.6, then the overall efficiency will be?

Which of the following can be non-low hydrogen process?

Pattern Making and Cupola Furnace Melting Process

Casting and Foundry Techniques

Casting Processes and Three Phase Induction Motors

Welding and Induction Motor Starting Methods

Friction Welding, Defects, and Metal Forging Operations

Metal Forming Processes and Techniques

Plastic Manufacturing Processes

Casting and Moulding Processes and Properties

Three Phase Induction Motors and Welding Processes

Metal Forming

Polymer Processing Techniques

Filters

Exam 5: Welding Processes and Efficiency

Which of the following is not correct about submerged arc welding?

In order to prevent oxidation and retain molten metal in stud welding which of the following is used?

Why hydrogen not used excessively for welding?

Which of the following gas welding process uses constant voltage?

What is the minimum power supply needed for the working of spot welding process?

Which of the following welding process is preferred for field application?

If the total efficiency is 0.35 in arc welding. Then what is the welding speed in mm/sec if the cross-sectional area is 5mm2, welding power is 2 kW and the heat required in melting the metal is 100 J/mm3.

What is the differentiating factor between flux core arc welding and gas-shielded metal arc welding processes?

Which of the following is true about flux core arc welding?

Which of the following can be easily be welded from flash butt welding process?

Which of the following is true about shielded metal arc welding?

Upset butt welding is majorly used in the making of automobile parts.

Choose the correct option regarding metal- active gas welding?

What is the maximum power supply needed for the working of spot welding process?

Which of the following is not correct about electro slag welding?

In friction welding process, materials are joined by motion between materials.

Which of the following parameters control the quality of weld?

Which of the following process does not have high deposition rate?

If the heat transfer efficiency is 0.5 and the melting efficiency is 0.6, then the overall efficiency will be?

Which of the following can be non-low hydrogen process?

Pattern Making and Cupola Furnace Melting Process

Casting and Foundry Techniques

Casting Processes and Three Phase Induction Motors

Welding and Induction Motor Starting Methods

Friction Welding, Defects, and Metal Forging Operations

Metal Forming Processes and Techniques

Plastic Manufacturing Processes

Casting and Moulding Processes and Properties

Three Phase Induction Motors and Welding Processes

Metal Forming

Polymer Processing Techniques

Filters