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This set of Energy Conversion Multiple Choice Questions & Answers (MCQs) focuses on Energy Conversion Set 19

Q1 | Which of the following public sector unit is engaged in the manufacture of thermal power plants?
  • National Thermal Power Corporation Ltd
  • Department of science and technology
  • Bharat Heavy Electricals Ltd
  • Heavy Engineering Corporation Ltd
  • Coal India Ltd
Q2 | In a long transmission line, the effect of
  • resistance, capacitance and inductance is neglected
  • resistance and inductance is taken into account but effect of capacitance is neglected
  • capacitance and inductance is taken into account but effect of resistance is neglected
  • resistance, capacitance and inductance is taken into account
  • resistance and capacitance is taken into account but effect of inductance is neglected
Q3 | Which of the following power plant will give least running cost of the production of electrical power?
  • All will have nearly same running cost
  • Nuclear power plant
  • Gas turbine power plant
  • Diesel engine power plant
  • Steam power plant
Q4 | In a steam turbine cycle the lowest pressure occurs in
  • Super-heater exit
  • Boiler
  • Condenser
  • Super-heater
  • Turbine inlet
Q5 | If K be the volume of conductor for two wire dc system, then for the same voltage the volume of conductor for 3 wire dc system for supplying the same load will be
  • 2 K
  • 5 K
  • 1.25 K
  • 0.25 K
  • 0.3125 K
Q6 | One BTU is the amount of energy required to raise the temperature of
  • One gram of water through 1?C
  • One pound of water through 1?C
  • One gram of water through 1?F
  • One pound of water through 1?F
  • One kilogram of water through ?F
Q7 | Which of the following material has the best conductivity?
  • ACSR
  • 5.71
  • Cadmium copper
  • Copper
  • Aluminium
Q8 | The voltage of a 2 wire de system is raised from 200 V to 400 V. For the same power transmitted over the same distance and for the same power loss, the saving in conductor copper will be
  • 25%
  • 40%
  • 50%
  • 60%
  • 75%
Q9 | The capacity of generators being installed in super-thermal power plant is
  • 200 MW
  • 400 MW
  • 100 MW
  • 500 MW
  • 220 MW
Q10 | Which of the following power plant can be installed within the shortest possible time?
  • Steam power plant
  • Diesel engine power plant
  • Hydro-electric power plant
  • Gas turbine power plant
  • Nuclear power plant
Q11 | Which of the following is not the standard rating of GLS lamps in India?
  • 50 W
  • 60 W
  • 40 W
  • 100 W
  • 25 W
Q12 | Which of the following place is associated with thermal power plants?
  • Agra
  • Tarapur
  • Bhakra
  • Obra
  • DVC
Q13 | In a medium transmission line the effect of
  • resistance and inductance is negligible but effect of capacitance is taken into account
  • capacitance is negligible
  • resistance, capacitance and inductance is taken into account
  • resistance is negligible
  • inductance is negligible
Q14 | The calorific value of natural gas is expected to be around
  • 2000 kcal/m3
  • 1500 kcal/m3
  • 25000 kcal/m3
  • 500 kcal/m3
  • 2500 kcal/m3
Q15 | The name DVC is associated with which type of power generation?
  • Nuclear
  • Hydro-electric
  • Thermal
  • Gas turbine
  • Diesel engine
Q16 | Which of the following gas is sometimes filled in filament lamps?
  • Argon
  • Ozone
  • Helium
  • Hydrogen
  • Oxygen
Q17 | The heating value of coal largely depends on
  • Volatile matter
  • Carbon content
  • Size of coal particles
  • Moisture content
  • Sulphur content
Q18 | Pulverised coal is
  • Coal free from as content
  • Coal which burns for long time
  • Coal free from sulphur
  • Coal broken into fine pieces
  • Non-smoking coal
Q19 | The calorific value of diesel oil is expected to be around
  • 1000 kcal/kg
  • 16000 kcal/kg
  • 21000 kcal/kg
  • 11000 kcal/kg
  • 5000 kcal/kg
Q20 | The highest voltage at which the power is transmitted in India is
  • 400 kV
  • 66 kV
  • 33 kV
  • 220 kV
  • 132 kV
Q21 | In any transmission line, which two generalised constants are equal?
  • C and D
  • B and C
  • A and B
  • A and C
  • A and D
Q22 | The power factor of a 3 phase induction motor near full load is expected to be around
  • 0.8 lagging
  • 0.8 leading
  • 0.5 lagging
  • 0.5 leading
  • 0.1 lagging
Q23 | If an engine has spark plugs, it can be safely concluded that it is
  • a four stroke engine
  • a air cooled engine
  • a water cooled engine
  • a two stroke engine
  • not a diesel engine
Q24 | The work of installation and commissioning of power plants in India is generally undertaken by
  • NTPC Ltd.
  • Coal Authority of India
  • Steel Authority of India
  • NHPC Ltd
  • HAL
Q25 | When the reactive component is small
  • the phase angle will be small and p.f. will be high
  • the phase angle will be large and p.f. will be low
  • the phase angle will be small and p.f. will be unity
  • the phase angle will be large and p.f. will be high
  • the phase angle will be small and p.f. will be leading