For forced draught system, the function of chimney is mainly
A). to produce draught to accelerate the combustion of fuel
B). to discharge gases high up in the atmosphere to avoid hazard
C). to reduce the temperature of the hot gases discharged
D). none of the above
to discharge gases high up in the atmosphere to avoid hazard
1. Which of the following loss in a D.C. generator is dissipated in the form of heat?
2. In a transistor amplifier circuit VCE = VCB + ___________
3. For the parallel operation of single phase transformers it is necessary that they should have
5. Super conductivity can be destroyed by
6. The most commonly used semiconductor in the manufacture of a transistor is ___________
7. If a single phase induction motor runs slower than normal, the most likely defect is
9. ___________ multivibrator is a square wave oscillator.
10. D.C. generator generally preferred for charging automobile batteries is