Top 550+ Solved Energy Conversion MCQ Questions Answer
Q. One kilowatt hour is nearly equal to
a. 3400 B.T.U.
b. 3.4 T.U.
c. 340 B.T.U.
d. 34 B.T.U.
e. 34000 B.T.U.
Q. Total load transmitted through a 3-phase transmission line is 10,000 kW at 0.8 power factor lagging. The I2 R losses are 900 kW. The efficiency of transmission line is
a. 60%
b. 90%
c. 95%
d. 99%
e. None of the above
Q. A draft tube is a part of which power plants?
a. Diesel engine power plant
b. Gas turbine power plant
c. Steam power plant
d. Hydro-electric power plant
e. All of the above
Q. Material generally used for bus bars is
a. cast iron
b. tungsten
c. Stainless steel
d. copper
e. None of the above
Q. The calorific value of which of the following files is expected to be nearly equal?
a. Coal gas and lignite coal
b. Natural gas and coal gas
c. Anthracite coal and lignite
d. Petrol and diesel oil
e. None of the above
Q. The critical pressure water is
a. 100 kg/cm2
b. More than 200 kg/cm2
c. Less than 200 kg/cm2
d. 1 atm
e. 150 kg/cm2
Q. Cleat is
a. main joint in a coal seam along which it breaks most easily
b. floor of a coal seam
c. carbon and sulphur compound
d. crude oil containing low percentage of sulphur
e. None of the above
Q. The disadvantage of constant voltage transmission is
a. short circuit current of the system is increased
b. low power factor in heavy loads
c. large conductor area is required for same power transmission
d. All of the above
e. None of the above
Q. Which of the following is a petroleum fuel?
a. Benzol
b. Methyl alcohol
c. Ethyl alcohol
d. Naphta
e. None of the above
Q. Baryon is one of the class of heavy elementary particles that includes
a. hyperons
b. neutrons
c. protons
d. All of the above
e. None of the above
Q. A single unit of 50 MW is generally not available with which type of power plant?
a. Diesel engine power plant
b. Gas turbine power plant
c. Steam power plant
d. Nuclear power plant
e. Hydro-electric power plant
Q. In the areas where snowfall is frequent, under worst conditions, the thickness of ice on a conductor is
a. 1.25 cm
b. 2.75 cm
c. 4.75 cm
d. 6.25 cm
e. None of the above
Q. Most of the generators in thermal power plants run at
a. 15000 rpm
b. 3000 rpm
c. 750 rpm
d. 1000 rpm
e. 1500 rpm
Q. Which of the following state in India is relatively rich in coal deposits?
a. Kerala
b. Andhra Pradesh
c. U.P.
d. Rajasthan
e. Bihar
Q. Corona effect can be detected by
a. hissing sound
b. faint luminous glow of bluish colour
c. presence of ozone detected by odour
d. all of the above
e. None of the above