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This set of Energy Conversion Multiple Choice Questions & Answers (MCQs) focuses on Energy Conversion Set 9
Q1 | Which of the following relation is incorrect?
- Capacity factor = Utilization factor x Load factor
- Load factor x Maximum load = Average load
- Demand factor x Connected load = Maximum demand
- None of the above
- None of the above
Q2 | The useful life of static capacitor can be expected to be
- 6 to 8 months
- 50 to 100 years
- 1 to 2 years
- 8 to 10 years
- 2 to 3 months
Q3 | The fixed cost of a power plant depends on
- Installed capacity
- Demand factor
- Diversity factor
- Average demand
- All of the above
Q4 | In the geysers steam is continuously vented through fissures in the ground. These vents are called
- vent holes
- dot holes
- fumaroles
- sunspots
- None of the above
Q5 | One kilowatt hour is nearly equal to
- 3400 B.T.U.
- 3.4 B.T.U.
- 340 B.T.U.
- 34 B.T.U.
- 34000 B.T.U.
Q6 | 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
- 60%
- 90%
- 95%
- 99%
- None of the above
Q7 | A draft tube is a part of which power plants?
- Diesel engine power plant
- Gas turbine power plant
- Steam power plant
- Hydro-electric power plant
- All of the above
Q8 | Material generally used for bus bars is
- cast iron
- tungsten
- Stainless steel
- copper
- None of the above
Q9 | The calorific value of which of the following files is expected to be nearly equal?
- Coal gas and lignite coal
- Natural gas and coal gas
- Anthracite coal and lignite
- Petrol and diesel oil
- None of the above
Q10 | The critical pressure water is
- 100 kg/cm2
- More than 200 kg/cm2
- Less than 200 kg/cm2
- 1 atm
- 150 kg/cm2
Q11 | Cleat is
- main joint in a coal seam along which it breaks most easily
- floor of a coal seam
- carbon and sulphur compound
- crude oil containing low percentage of sulphur
- None of the above
Q12 | The disadvantage of constant voltage transmission is
- short circuit current of the system is increased
- low power factor in heavy loads
- large conductor area is required for same power transmission
- All of the above
- None of the above
Q13 | Which of the following is a petroleum fuel?
- Benzol
- Methyl alcohol
- Ethyl alcohol
- Naphta
- None of the above
Q14 | Baryon is one of the class of heavy elementary particles that includes
- hyperons
- neutrons
- protons
- All of the above
- None of the above
Q15 | A single unit of 50 MW is generally not available with which type of power plant?
- Diesel engine power plant
- Gas turbine power plant
- Steam power plant
- Nuclear power plant
- Hydro-electric power plant
Q16 | In the areas where snowfall is frequent, under worst conditions, the thickness of ice on a conductor is
- 1.25 cm
- 2.75 cm
- 4.75 cm
- 6.25 cm
- None of the above
Q17 | Most of the generators in thermal power plants run at
- 15000 rpm
- 3000 rpm
- 750 rpm
- 1000 rpm
- 1500 rpm
Q18 | Which of the following state in India is relatively rich in coal deposits?
- Kerala
- Andhra Pradesh
- U.P.
- Rajasthan
- Bihar
Q19 | Corona effect can be detected by
- hissing sound
- faint luminous glow of bluish colour
- presence of ozone detected by odour
- all of the above
- None of the above
Q20 | Least overall efficiency can be expected in which type of power plant?
- Gas turbine power plant
- Steam power plant
- Hydro-electric power plant
- Diesel engine power plant
- Nuclear power plant
Q21 | Which of the following engine has the highest air-fuel ratio?
- Petrol engine
- All above has got nearly same air fuel ratio
- Gas turbine
- Gas engine
- Diesel engine
Q22 | Visible spectrum of light has wavelength in the range
- 4000 to 7000 A
- 100 to 400 A
- 40,000 to 70,000 A
- 14,000 to 17,000 A
- 10 to 40 A
Q23 | Which of the following equipment is not installed in a substation?
- Exciters
- Series capacitors
- Shunt reactors
- Voltage transformers
- None of the above
Q24 | Which of the following equipment has power factor closer to unity
- GLS lamp
- Single phase capacitor motor
- Induction motor
- Fluorescent lamp
- Carbon arc lamp
Q25 | Which of the following power plant has the highest cost per kW installed?
- Nuclear power plant
- Steam power plant
- Hydro-electric power
- Diesel engine power plant
- Gas turbine power plant