Top 550+ Solved Energy Conversion MCQ Questions Answer
Q. Steel poles used for telephone lines are generally
a. painted
b. plated
c. galvanized
d. blackened
e. None of the above
Q. The chemical composition of coal is given by
a. Proximate analysis
b. Ultimate analysis
c. Orsat analysis
d. All of the above
e. None of the above
Q. If 3 MW power is to be transmitted over a distance of 30 km, the desirable transmission voltage will be
a. 11 kV
b. 33 kV
c. 66 kV
d. 132 kV
e. None of the above
Q. The power factor of a 3 phase induction motor will be least
a. at no load
b. at 80% load
c. at 25% load
d. at full load
e. at 5% load
Q. A 132 kV transmission line carrying power through a distance of 250 kilometers will be termed as
a. Very short transmission line
b. Short transmission line
c. Long transmission line
d. Trunk line
e. None of the above
Q. In a hydroelectric plant a conduit-system for taking water from the intake work to the turbine is known as
a. Penstock
b. Dam
c. Reservoir
d. Surge tank
e. Flume
Q. Most power generating units are conservatively rated. For short durations, these units can be easily overloaded by about
a. 1 to 2 percent
b. 10 to 15 percent
c. 25 to 30 percent
d. 40 to 50 percent
e. None of the above
Q. Therm is a unit of
a. radioactivity
b. heating value
c. wind speed
d. tidal wave
e. None of the above
Q. In a fluorescent tube circuit, choke acts as a
a. A starter
b. A source of heat
c. A device for improving the power factor
d. A current limiting device
e. None of the above
Q. Which of the following is not needed in megneto hydrodynamic power plants?
a. Chimney
b. Combustor
c. Steam turbine
d. Fuel
e. None of the above
Q. A four stroke petrol engine is designed to develop 35 BHP at 200 RPM. It has an indicated mean effective pressure of 20 kg/cm2, a stroke of 35 cm and a bore diameter of 20 cm. Using this data mechanical efficiency of the engine at the running condition given would be closest to
a. 50 percent
b. 60 percent
c. 70 percent
d. 80 percent
e. None of the above
Q. Particles having the same atomic number but different mass unmbers are called
a. Beta particles
b. Positrons
c. Isotopes
d. Ions
e. Decayed particles
Q. Careful handling of fuel is essential for which of the following power plant?
a. Hydro-electric power plant
b. Diesel engine power plant
c. Gas turbine power plant
d. Steam power plant
e. Nuclear power plant