1. Radiations from a black body are proportional to A. T B. T2 C. T3 D. T4 Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option D No explanation is given for this question Let's Discuss on Board
2. Properly of low temperature co-eflficient of heating element is desired due to which of the following reasons? A. To avoid initial rush of current B. To avoid change in kW rating with temperature C. Both (A) and (B) D. Either (A) or (B) Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option C No explanation is given for this question Let's Discuss on Board
3. The material of the heating element for a furnace should have A. Lower melting point B. Higher temperature coefficient C. High specific resistance D. All of the above Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option C No explanation is given for this question Let's Discuss on Board
4. In induction heating __________ is abnormally high. A. Phase angle B. Frequency C. Current D. Voltage Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option B No explanation is given for this question Let's Discuss on Board
5. For the transmission of heat from one body to another A. Temperature of the two bodies must be different B. Both bodies must be solids C. Both bodies must be in contact D. At least one of the bodies must have some source of heating Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option A No explanation is given for this question Let's Discuss on Board
