Question 1

Friction welding produces quality joints, with a 100% weld.

Accepted Answer

A) lap joint 
B) tee-joint 
C) butt joint 
D) edge joint 
A) lap joint 
B) tee-joint 
C) butt joint 
D) edge joint C

Question 2

In inertia friction welding energy of welding machine is used.

Accepted Answer

A) electrical 
B) potential 
C) rotational 
D) frictional 
A) electrical 
B) potential 
C) rotational 
D) frictional C

Question 3

Which of the following is true in case of "too quick" forming (too few passes)?

Accepted Answer

A) it makes the tooling and the process uneconomical 
B) it makes process easier 
C) it distorts the product 
D) eliminate the need of a skilled operator 
A) it makes the tooling and the process uneconomical 
B) it makes process easier 
C) it distorts the product 
D) eliminate the need of a skilled operator C

Question 4

What will be the elongation if a 1in high section is formed in four passes in a mill having a horizontal distance (between passes) of 14in?

Accepted Answer

A) 0.04% 
B) 0.16% 
C) 0.63% 
D) 0.50% 
A) 0.04% 
B) 0.16% 
C) 0.63% 
D) 0.50%

Question 5

Which of the following is not true about friction welding?

Accepted Answer

A) dissimilar metals cannot be joined 
B) this technique is relatively faster as compared to the other techniques 
C) this technique is suitable for any parts of shape or size 
D) sheared surfaces can also be joined by the process 
A) dissimilar metals cannot be joined 
B) this technique is relatively faster as compared to the other techniques 
C) this technique is suitable for any parts of shape or size 
D) sheared surfaces can also be joined by the process

Question 6

Isothermal forging is also known as cold forging operation.

Accepted Answer

A) True 
 B)False

Question 7

During roll forming, a flat strip is passed number of times through the rollers.

Accepted Answer

A) True 
 B)False

Question 8

Which of the following defects occur due to flux employed and electrode coating?

Accepted Answer

A) inclusion of slag 
B) inadequate penetration 
C) incomplete fusion 
D) porosity 
A) inclusion of slag 
B) inadequate penetration 
C) incomplete fusion 
D) porosity

Question 9

Which of the following defects occur due to incorrect welding techniques?

Accepted Answer

A) undercut 
B) hot cracking 
C) cracking in weld metal 
D) cold cracking 
A) undercut 
B) hot cracking 
C) cracking in weld metal 
D) cold cracking

Question 10

Which of the following defects occur when the deposited metal is not focused on the root of weld?

Accepted Answer

A) inclusion of slag 
B) inadequate penetration 
C) incomplete fusion 
D) porosity 
A) inclusion of slag 
B) inadequate penetration 
C) incomplete fusion 
D) porosity

Question 11

In direct drive friction welding, lower weld forces are generated.

Accepted Answer

A) True 
 B)False

Question 12

The metal forging operation can be performed manually or by automation.

Accepted Answer

A) True 
 B)False

Question 13

What is camber in roll forming?

Accepted Answer

A) deviation of the strip edge from a straight line in horizontal plane 
B) deviation of the strip edge from a straight line in vertical plane 
C) difference in theoretical and actual elongation of the strip 
D) waviness of the strip 
A) deviation of the strip edge from a straight line in horizontal plane 
B) deviation of the strip edge from a straight line in vertical plane 
C) difference in theoretical and actual elongation of the strip 
D) waviness of the strip

Question 14

What is "leg length" or "leg height"?

Accepted Answer

A) the maximum vertical dimension of the profile 
B) total length of the product 
C) excess length of the product 
D) maximum width of the section 
A) the maximum vertical dimension of the profile 
B) total length of the product 
C) excess length of the product 
D) maximum width of the section

Question 15

Which of following is necessary in order to have a good set of rolls?

Accepted Answer

A) short horizontal distances 
B) small lead-in flanges 
C) a smooth flow of material 
D) less number of forming passes 
A) short horizontal distances 
B) small lead-in flanges 
C) a smooth flow of material 
D) less number of forming passes

Question 16

Friction welding is process.

Accepted Answer

A) costly 
B) cost saving 
C) time consuming 
D) highly material selective 
A) costly 
B) cost saving 
C) time consuming 
D) highly material selective

Question 17

Which of the following defects occur at a lower temperature?

Accepted Answer

A) undercut 
B) hot cracking 
C) cracking in weld metal 
D) cold cracking 
A) undercut 
B) hot cracking 
C) cracking in weld metal 
D) cold cracking

Question 18

Which of the following defects occur due to filler material having a different rate of contraction compared to parent metal?

Accepted Answer

A) undercut 
B) spatter 
C) cracking in weld metal 
D) cold cracking 
A) undercut 
B) spatter 
C) cracking in weld metal 
D) cold cracking

Question 19

Which of the following defects occur due to the entrapment of gas bubbles by the freezing dendrites during the cooling of molten pad?

Accepted Answer

A) inclusion of slag 
B) inadequate penetration 
C) incomplete fusion 
D) porosity 
A) inclusion of slag 
B) inadequate penetration 
C) incomplete fusion 
D) porosity

Question 20

During roll forming, the strain (elongation) of the outside edge fiber of the strip must remain below the uniform engineering strain (elastic limit).

Accepted Answer

A) True 
 B)False

Friction welding produces quality joints, with a 100% weld.

In inertia friction welding energy of welding machine is used.

Which of the following is true in case of "too quick" forming (too few passes)?

What will be the elongation if a 1in high section is formed in four passes in a mill having a horizontal distance (between passes) of 14in?

Which of the following is not true about friction welding?

Isothermal forging is also known as cold forging operation.

During roll forming, a flat strip is passed number of times through the rollers.

Which of the following defects occur due to flux employed and electrode coating?

Which of the following defects occur due to incorrect welding techniques?

Which of the following defects occur when the deposited metal is not focused on the root of weld?

In direct drive friction welding, lower weld forces are generated.

The metal forging operation can be performed manually or by automation.

What is camber in roll forming?

What is "leg length" or "leg height"?

Which of following is necessary in order to have a good set of rolls?

Friction welding is process.

Which of the following defects occur at a lower temperature?

Which of the following defects occur due to filler material having a different rate of contraction compared to parent metal?

Which of the following defects occur due to the entrapment of gas bubbles by the freezing dendrites during the cooling of molten pad?

During roll forming, the strain (elongation) of the outside edge fiber of the strip must remain below the uniform engineering strain (elastic limit).

Pattern Making and Cupola Furnace Melting Process

Casting and Foundry Techniques

Casting Processes and Three Phase Induction Motors

Welding and Induction Motor Starting Methods

Welding Processes and Efficiency

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 6: Friction Welding, Defects, and Metal Forging Operations

Friction welding produces quality joints, with a 100% weld.

In inertia friction welding energy of welding machine is used.

Which of the following is true in case of "too quick" forming (too few passes)?

What will be the elongation if a 1in high section is formed in four passes in a mill having a horizontal distance (between passes) of 14in?

Which of the following is not true about friction welding?

Isothermal forging is also known as cold forging operation.

During roll forming, a flat strip is passed number of times through the rollers.

Which of the following defects occur due to flux employed and electrode coating?

Which of the following defects occur due to incorrect welding techniques?

Which of the following defects occur when the deposited metal is not focused on the root of weld?

In direct drive friction welding, lower weld forces are generated.

The metal forging operation can be performed manually or by automation.

What is camber in roll forming?

What is "leg length" or "leg height"?

Which of following is necessary in order to have a good set of rolls?

Friction welding is process.

Which of the following defects occur at a lower temperature?

Which of the following defects occur due to filler material having a different rate of contraction compared to parent metal?

Which of the following defects occur due to the entrapment of gas bubbles by the freezing dendrites during the cooling of molten pad?

During roll forming, the strain (elongation) of the outside edge fiber of the strip must remain below the uniform engineering strain (elastic limit).

Pattern Making and Cupola Furnace Melting Process

Casting and Foundry Techniques

Casting Processes and Three Phase Induction Motors

Welding and Induction Motor Starting Methods

Welding Processes and Efficiency

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