MCQs on Power Systems

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01․ The 1st nuclear plant in world was commissioned in

The first nuclear plant in world was commissioned in USSR in the year of 1954.

02․ India 1st nuclear plant was set up at
Rana pratap sagar.

At Tarapur, India first nuclear plant was established.

03․ Nuclear fission means
breaking up of nuclear of heavy atoms into nearly equal parts.
combination of two light nuclei.

The breaking up of nucleus of heavy atoms into nearly equal parts with release of huge amount of energy is known as nuclear fission. The release of huge amount of energy during fission is due to mass defect. This defect is converted into heat energy according to Einstein equation E = mc2.

Turbinesspecific speed (in s.i. units)
a. pelton wheel turbine g. 50 to 250
b. Kaplan turbineh. up to 50
c. Francis turbinei. 255 to 866
a-g, b-h, c-i.
a-h, b-i, c-g.
a-i, b-g, c-h.
none of above.

Specific speed of turbine is speed of a geometrically symmetrical turbine working under unit head and delivering unit break power (1 kW).

05․ Solar thermal power generation can be achieved by
using focusing collector or heliostates.
using a solar pond.
using flat plate collector.
any of the above .

Under construction.

06․ The function of moderator in a nuclear reactor is to
stop chain reaction.
absorb neutrons.
reduce the speed of neutrons.
reduce temperature.

Under construction.

07․ Reflector of a nuclear reactor are made up of
cast iron.

Under construction.

08․ The conversion ratio of a breeder reactor is
equal to unity.
more than unity.
less than unity.
none of above.

Under construction.

09․ The commercial sources of energy are
fossile fuels and radioactive substances.
solar, wind, biomass.
wood, animal wastes and agricultural wastes.
none of above.

The main source of energy is fuels. The fossils fuels are coal, oil and coal gas. This sources are commercial water at a high pressure or flowing with a high velocity can be used to run turbines or waterwheels coupled to generators and therefore for generation of electronic power. This method of power generation is costlier in initial cost. So this source is also commercial. The atomic energy or nuclear energy is commercial due to initial for installation and availability of uranium.

10․ Non-commercial sources of energy are
fossil fuel, hydro power and nuclear power.
wood, animal wastes and agricultural wastes.
solar, wind and biomass.
none of the above.

Non commercial sources of energy consist of firewood agricultural wastes, vegetable wastes, dried dung etc. These sources are supposed to be free, as they do not command any price. Actually, the non-commercial sources have started commanding prices in urban areas and to some extent in rural areas as well.