Induction heating takes place it which of the following ?

Byadmin December 17, 2018August 11, 2021

Induction heating takes place it which of the following ?

A. Insulating materials
B. Conducting materials which are magnetic
C. Conducting materials which are non-magnetic
D. Conducting materials which may or may not be magnetic

Heating and Welding

Hysteresis loss and eddy current loss are used in____________?

Hysteresis loss and eddy current loss are used in____________?

A. induction heating of steel
B. dielectric heating
C. induction heating of brass
D. resistance heating

Read More Hysteresis loss and eddy current loss are used in____________?
Heating and Welding

Which of the following is an advantage of eddy current heating ?

Which of the following is an advantage of eddy current heating ?

A. The amount of heat generated can be controlled accurately
B. Heat at very high rate can be gene-rated
C. The area of the surface over which heat is produced can be accurately controlled
D. All of the above

Read More Which of the following is an advantage of eddy current heating ?
Heating and Welding

Which of the following methods of heating is not dependent on the frequency of supply ?

Which of the following methods of heating is not dependent on the frequency of supply ?

A. Induction heating
B. Dielectric heating
C. Electric resistance heating
D. All of the above

Read More Which of the following methods of heating is not dependent on the frequency of supply ?
Heating and Welding

In electric press, mica is used because it is _________ conductor of heat but/and __________ conductor of electricity?

In electric press, mica is used because it is _________ conductor of heat but/and __________ conductor of electricity?

A. bad, good
B. bad, bad
C. good, bad
D. good, good

Read More In electric press, mica is used because it is _________ conductor of heat but/and __________ conductor of electricity?
Heating and Welding

In induction heating ___________ is abnormally high?

In induction heating ___________ is abnormally high?

A. phase angle
B. frequency
C. current
D. voltage

Read More In induction heating ___________ is abnormally high?
Heating and Welding

For heating element high resistivity material is chosen to______________?

For heating element high resistivity material is chosen to______________?

A. reduce the length of heating element
B. increase the life of the heating element
C. reduce the effect of oxidation
D. produce large amount of heat

Read More For heating element high resistivity material is chosen to______________?

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