- (A) Unity
- (B) Low, lagging
- (C) Low, leading
- (D) Any of the above
Exam preparation MCQs with answers
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Latest MCQs
- (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
- (A) Annealing of metals
- (B) Melting of ferrous metals
- (C) Heating of liquids in electric kettle
- (D) Drying of paints and varnishes
- (A) copper alloy
- (B) carbon
- (C) tungsten alloy
- (D) stainless steel alloy
- (A) tungsten
- (B) graphite
- (C) silver
- (D) copper
- (A) Current
- (B) Voltage
- (C) Power factor
- (D) All of the above
- (A) voltage variation
- (B) thermostat
- (C) auto-transformer
- (D) series-parallel operation
- (A) To achieve better heating
- (B) To increase the life of roof refractory
- (C) To have better stirring action
- (D) To reduce problem of oxidation
- (E) All of the above
- (A) as an insulator
- (B) as a device for power factor improvement
- (C) for dielectric heating
- (D) for induction heating
- (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)
