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Objective type question
1. Objective type question for utilization of electrical power
Q1.what are the type of heat transfer mode?
Ans. Three
Q2.what is the temperature coefficient of resistance of good heating element?
Ans. Low
Q3.what is the melting temperature of heating element?
Ans. High
Q4. ...... temperature coefficient of resistance .
Ans. Positive.
Q5.what is the percentage of Ni in the alloy of nickel & chromium in the material of heating
element?
Ans. 80%
Q6. Which type of material used in Carbon electrode.
Ans. Anthracite coal and coke.
