Top 550+ Solved Energy Conversion MCQ Questions Answer

From 151 to 165 of 591

Q. Which type of insulators are used on 132 kV transmission lines?

a. Pin type

b. Disc type

c. Shackle type

d. Pin and shackle type

e. None of the above

  • b. Disc type

Q. Gamma rays are

a. high energy, short wavelength electromagnetic radiation

b. high energy, long wavelength electromagnetic wavelength

c. low energy, long wavelength electromagnetic radiation

d. low energy, short wavelength electromagnetic radiation

e. None of the above

  • a. high energy, short wavelength electromagnetic radiation

Q. Baume's scale measures

a. purity of water

b. radioactivity

c. specific gravity of liquids

d. specific gravity of gases

e. None of the above

  • c. specific gravity of liquids

Q. The depreciation rate for an equipment is generally decided in light of

a. Sales tax rules

b. Excise duty rules

c. Income tax rules

d. Electricity duty rules

e. None of the above

  • c. Income tax rules

Q. Which of the following is an advantage of using static capacitors of power factor improvement?

a. Low losses within the capacitors

b. No rotating parts

c. Can be easily installed

d. Can work under normal atmospheric conditions

e. All of the above

  • e. All of the above

Q. Skin effects depends upon

a. size of the conductor

b. frequency of the current

c. resistivity of the conductor

d. All of the above

e. None of the above

  • d. All of the above

Q. If a diesel engine has a turbochanger, it can be concluded that the engine is

a. Pressure lubricated

b. Double acting type

c. Air cooled type

d. Supercharged type

e. High speed type

  • d. Supercharged type

Q. Which of the following factor affects corona?

a. Atmospheric conditions

b. Conductor size

c. Spacing between conductors

d. Line voltage

e. All of the above

  • e. All of the above

Q. The function of steel wire in a ACSR conductor is

a. to take care of voltage surges

b. to prevent corona

c. to reduce inductance and hence improve power factor

d. to provide additional mechanical strength

e. None of the above

  • d. to provide additional mechanical strength

Q. Which of the following method can be used for heating wood?

a. Oil burner heating

b. Carbon arc heating

c. Tungsten arc heating

d. Resistance heating

e. Dielectric heating

  • e. Dielectric heating

Q. Sag is provided in overhead transmission lines so that

a. Repairs can be done easily

b. Corona can be reduced

c. Skia effect can be reduced

d. Safe tension is not exceeded

e. None of the above

  • d. Safe tension is not exceeded

Q. A chimney is not a part of which of the following type of power plant?

a. Steam power plant

b. Diesel engine power plant

c. Gas turbine power plant

d. Hydro-electric power plant

e. All of the above

  • d. Hydro-electric power plant

Q. Fixed carbon in case of biogas is around

a. 12.5 percent

b. 25 percent

c. 40 percent

d. 68 percent

e. None of the above

  • a. 12.5 percent

Q. the main cause of power loss in a transmission line is

a. Resistance

b. capacitance is negligible

c. Inductance

d. Both inductance and capacitance

e. None of the above

  • a. Resistance

Q. In hydrothermal systems when steam water and dissolved solids are available as source of energy, the entrained solids are removed by

a. filters

b. centrifugal separators

c. strainers

d. None of the above

e. None of the above

  • b. centrifugal separators
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