Top 550+ Solved Energy Conversion MCQ Questions Answer

From 451 to 465 of 591

Q. An Orsat apparatus gives

a. volumetric analysis

b. gravimetric analysis

c. approximate analysis

d. only presence of constituents

e. None of the above

  • a. volumetric analysis

Q. The specific gravity of copper is

a. 8.9

b. 16.9

c. 13.9

d. 2.9

e. 5.9

  • e. 5.9

Q. Conductors for high voltage transmission lines are suspended from towers

a. to reduce clearance from ground

b. to increase clearance from ground

c. to reduce wind and snow loads

d. to take care of extension in length during summer

e. None of the above

  • d. to take care of extension in length during summer

Q. Economiser in a steam power plant is used

a. To preheat air

b. To preheat feed water

c. To superheat steam

d. None of the above

e. None of the above

  • b. To preheat feed water

Q. A pin type insulator is generally used upto

a. 66 kV

b. 132 kV

c. 33 kV

d. 1.1 kV

e. 11 kV

  • c. 33 kV

Q. Naphtha is a volatile colourless product obtained from

a. methyl alcohol

b. vinyl acetate

c. sugar cane

d. petroleum

e. None of the above

  • d. petroleum

Q. A 66 kV transmission line carrying power to a distance of 120 kilometre will be termed as

a. Short transmission line

b. Very short transmission line

c. Long transmission line

d. Medium transmission line

e. Tiny transmission line

  • d. Medium transmission line

Q. Solar cells are made of

a. silicon

b. germanium

c. silver

d. aluminium

e. None of the above

  • a. silicon

Q. In case the supply frequency is reduced from 50 Hz to 1 Hz which method of heating will be least affected?

a. Resistance heating

b. Dielectric heating

c. Induction heating

d. All of the above

e. None of the above

  • a. Resistance heating

Q. Bottoming cycle in case of combined cycle power geneation is normally

a. Gas turbine cycle

b. Steam cycle

c. any of the above

d. None of the above

e. None of the above

  • b. Steam cycle

Q. The major disadvantage with solar cells for power generation is

a. lack of availability

b. large area requirement

c. variable power

d. high cost

e. None of the above

  • d. high cost

Q. Earth coal is

a. lignite

b. coal dust

c. black earth

d. wet coal

e. None of the above

  • a. lignite

Q. Barytes concrete is generally used in

a. nuclear power plants

b. construction of dams

c. foundations for heavy equipment

d. construction of cooling towers

e. None of the above

  • a. nuclear power plants

Q. The disadvantage of using solar evergy for power production is

a. Requirements of large area for harnessing solar energy

b. Energy available during day time only

c. Energy not available during cloudy weather

d. Initial cost is high

e. All of the above

  • e. All of the above

Q. Chain gate stokers cannot be used for

a. coal lumps

b. low ash content coals

c. high ash content coals

d. None of the above

e. None of the above

  • c. high ash content coals
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