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This set of Energy Conversion Multiple Choice Questions & Answers (MCQs) focuses on Energy Conversion Set 11
Q1 | In pumped storage plant
- Power is produced by pumps
- Water is stored by pumping to high pressures
- Water is recirculated through turbines
- Downstream water is pumped upstream during off-load periods
- Pressure accumulators are used
Q2 | The effect of corona can be reduced by
- Increasing the conductor size and reducing the spacing between the conductors
- Increasing the conductor size and also by increasing the spacing between the conductors
- Reducing the conductor size and increasing the spacing between conductors
- Reducing the conductor size as well as spacing between the conductors
- None of the above
Q3 | Which of the following fuel consists almost entirely of fixed carbon and ash?
- Lignite
- peat
- wood charcoal
- coke
- None of the above
Q4 | ACSR conductor implies
- All conductors surface treated and realigned
- Anode current sinusoidally run
- Anodised core smoothly run
- Aluminium conductor steel reinforced
- None of the above
Q5 | Turnaround efficiency of battery energy storage system is around
- 75 percent
- 50 percent
- 25 percent
- 10 percent
- None of the above
Q6 | Coal broken into angular fragments is known as
- coal briquettes
- coal breccia
- coal bank
- coal auger
- None of the above
Q7 | A graphical representation of discharge and time is known as
- Load duration curve
- Monograph
- Hydrograph
- Load curve
- Hectograph
Q8 | Pulverized coal is fed to the boiler through
- stokers
- retorts
- fans
- burners
- None of the above
Q9 | In solar thermal conversion systems the solar heat is transferred to
- water - steam
- liquid metals
- molten salts
- any of the above
- None of the above
Q10 | Fixed carbon in case of bituminous coals is less than
- 70%
- 50%
- 35%
- 15%
- None of the above
Q11 | Existence of which gs in atmosphere causes green house effect?
- Carbon dioxide
- Hydrogen sulphide
- Nitrogen
- Hydrogen
- None of the above
Q12 | In a diesel engine, the consumption of diesel oil per BHP per hour is nearly
- 10 grams
- 200 grams
- 1250 grams
- 100 grams
- 850 grams
Q13 | First geothermal energy plant in India was tried at
- Himachal Pradesh
- Rajasthan
- Bihar
- Kerala
- None of the above
Q14 | The formula for Cetane is
- C6H15
- C10H24
- C10H12
- C16H34
- C12H32
Q15 | The vacuum inside a incandescent lamp is of the order of
- 10-5 mm Hg
- 10-2 mm Hg
- 10-4 mm Hg
- 10-3 mm Hg
- 10-6 mm Hg
Q16 | Humacite is the name associated with
- lignites
- radioactive minerals
- bitumins
- refrigerants
- None of the above
Q17 | Tidal energy plant in India is being located at
- Kerala
- Gujarat
- Orissa
- Tamil Nadu
- None of the above
Q18 | When pulverised fuel is not used the equipment used for feeding coal to the boiler is
- Stoker
- Regenerator
- Heater
- Burner
- Feed pump
Q19 | In case the characteristic impedance of the line is equal to the load impedance
- all the energy will pass to the earth
- all the energy will be lost in transmission losses
- the system will resonatc badly
- all the energy sent will be absorbed by the load
- None of the above
Q20 | The specific gravity of aluminium is
- 3.71
- 5.71
- 1.71
- 2.71
- 4.71
Q21 | The illumination level in the houses is usually in the range
- 400 to 650 lumens/m2
- 2500 to 3000 lumens/m2
- 1200 to 1600 lumens/m2
- 100 to 1400 lumens/m2
- 10 to 20 lumens/m2
Q22 | For under water movement of a submarine the power is provided by
- Tidal energy
- Solar energy
- Thermoionic converters
- Geothermal energy
- Batteries
Q23 | For constant voltage transmission, the drop is compensated by installing
- synchronous motors
- capacitors
- inductors
- All of the above
- None of the above
Q24 | The total power of a wind stream is proportional to
- velocity of stream
- (velocity of stream)2
- (velocity of stream)3
- None of the above
Q25 | Which of the following is considered to be superior quality coal for power plants?
- Peat
- Bituminous coal
- Lignite
- Coke
- Pulverised coal