Top 550+ Solved Energy Conversion MCQ Questions Answer
Q. In case of oil fired boiler, the excess air is usually
a. 1 to 2 percent
b. 5 to 12 percent
c. 20 to 25 percent
d. 75 to 125 percent
e. None of the above
Q. A metallic sheath is provided on cable
a. to protect against moisture, gases and other damaging liquids
b. to protect from mechanical damage due to rubbing
c. to protect against sparking
d. to avoid damage to the cable during laying
e. All of the above
Q. The efficiency of a thermal power plant improves with
a. Larger quantity of water used
b. Lower load on the plant
c. Increased quantity of coal burnt
d. Use of high pressure steam
e. All of the above
Q. Which of the following is the advantage of de transmission?
a. Absence of line inductance and capacitance problems
b. No skin effects
c. For the same working voltage the potential stress on the insulation is less
d. No stability problems
e. All of the above
Q. Burning of low grade fuels can be improved by
a. Blending with better quality
b. Oil assisted ignition
c. Pulverising
d. Any of the above
e. None of the above
Q. Which of the following is a natural solid fuel?
a. Pulverised coal
b. Wood charcoal
c. Bituminous coal
d. Coking coal
e. None of the above
Q. The power factor of a 3 phase induction motor near full load is expected to be around
a. 0.5 leading
b. 0.5 lagging
c. 0.1 lagging
d. 0.8 lagging
e. 0.8 leading
Q. When geothermal energy is available in the form of saline water, power is developed using
a. flashed - steam system
b. binary - cycle system
c. total flow system
d. any of the above
e. None of the above
Q. If an engine has spark plugs, it can be safely concluded that it is
a. a two stroke engine
b. a air cooled engine
c. not a diesel engine
d. a four stroke engine
e. a water cooled engine
Q. No moving parts are required in
a. MHD generator
b. Tidal power plant
c. Thermionic conversion
d. OTEC power plant
e. None of the above
Q. The work of installation and commissioning of power plants in India is generally undertaken by
a. NHPC Ltd
b. Steel Authority of India
c. NTPC Ltd.
d. Coal Authority of India
e. HAL
Q. When the reactive component is small
a. the phase angle will be small and p.f. will be leading
b. the phase angle will be large and p.f. will be high
c. the phase angle will be small and p.f. will be unity
d. the phase angle will be small and p.f. will be high
e. the phase angle will be large and p.f. will be low
Q. Which of the following colour has wavelength between green and red colour?
a. Yellow
b. Blue
c. Violet
d. All of the above
e. None of the above
Q. Which of the following statement is correct?
a. Wind pressure reduces corona effects
b. Ice on conductors improves power factor
c. Wind pressure is taken to act in a direction at right angles to that for ice
d. Wind pressure and ice on conductors together improve regulation of power transmitted
e. None of the above