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This set of Energy Conversion Multiple Choice Questions & Answers (MCQs) focuses on Energy Conversion Set 23

Q1 | The expected life of a GLS lamp is nearly
  • 50 hours
  • 10,000 hours
  • 100 hours
  • 1000 hours
  • 5000 hours
Q2 | The thickness of the layer of insulation on a cable depends on
  • kW
  • KVA
  • Voltage
  • Current carrying capacity of conductor
  • Power factor
Q3 | Coal used in power plants is also known as
  • Charcoal
  • Soft coal
  • Coke
  • Steam coal
  • Power coal
Q4 | High horse power diesel engines are usually started by
  • Batteries
  • Compressed air
  • Self-starter or cranking
  • Cranking
  • Self-starter
Q5 | Which of the following motor can operate on lagging as well as leading power factor?
  • Squirrel cage induction motor
  • Universal motor
  • Capacitor run motor
  • Synchronous motor
  • Reluctance motor
Q6 | A 200 MW generator will invariably be
  • Nitrogen cooled
  • Hydrogen cooled
  • Pressurised air cooled
  • Oxygen cooled
  • Air cooled
Q7 | Which of the following place is not associated with nuclear power plants?
  • Tarapur
  • Bangalore
  • Kamalappakam
  • Narora
  • Kora
Q8 | The term 'critical' is associated with which type of power plant?
  • Hydro-electric power plant
  • Nuclear power plant
  • Steam power plant
  • Gas turbine power plant
  • Diesel engine power plant
Q9 | The standard wattage of 4 feet fluorescent tube is
  • 10 W
  • 100 W
  • 250 W
  • 500 W
  • 40 W
Q10 | For the same wattage, which of the following lamp is cheapest?
  • Mercury vapour lamp
  • Fluorescent tube 4 ft.
  • Fluorescent tube 2 ft.
  • GLS lamp
  • Sodium vapour lamp
Q11 | One British thermal unit (BTU) is nearly equal to
  • 1053 joules
  • 243 joules
  • 2106 joules
  • 252 joules
  • 504 joules
Q12 | At which of a following speed the generators for 3 phase, 50 Hz supply will not run?
  • 166? rpm
  • 250 rpm
  • 750 rpm
  • 1200 rpm
  • 500 rpm
Q13 | The specific gravity of diesel oil is closer to
  • 1.35
  • 0.84
  • 1
  • 0.35
  • 2.7
Q14 | If a diesel engine has a turbochanger, it can be concluded that the engine is
  • Supercharged type
  • Air cooled type
  • Double acting type
  • Pressure lubricated
  • High speed type
Q15 | Which of the following method can be used for heating wood?
  • Oil burner heating
  • Tungsten arc heating
  • Resistance heating
  • Dielectric heating
  • Carbon arc heating
Q16 | In a hydroelectric plant a conduit-system for taking water from the intake work to the turbine is known as
  • Reservoir
  • Flume
  • Dam
  • Surge tank
  • Penstock
Q17 | Particles having the same atomic number but different mass unmbers are called
  • Ions
  • Positrons
  • Isotopes
  • Decayed particles
  • Beta particles
Q18 | Careful handling of fuel is essential for which of the following power plant?
  • Gas turbine power plant
  • Steam power plant
  • Diesel engine power plant
  • Nuclear power plant
  • Hydro-electric power plant
Q19 | In any transmission line
  • AC - BD = -1
  • AC = BD + 1
  • AB - CD = -1
  • AB = CD + 1
  • ?BC = 1 - AD
Q20 | A curve showing the variation of load on a power station with respect to time is known as
  • Load curve
  • Flow chart
  • Performance curve
  • Load duration curve
  • Diversity factor
Q21 | Nagarjunsagar dam has been constructed on river
  • Charnbal
  • Krishna
  • Kali
  • Mahanadi
  • Kaveri
Q22 | The location of which power plant is mainly decided by the geographical factors?
  • Diesel engine power plant
  • Nuclear power plant
  • Gas turbine power plant
  • Hydro-electric power plant
  • Steam power plant
Q23 | Illumination due to moonlight is nearly
  • 1.8 lumens/meter2
  • 0.3 lumen/meter2
  • 18 lumens/meter2
  • 300 lumens/meter2
  • 30 lumens/meter2
Q24 | Which of the following place is not associated with hydro-electric power plants?
  • Farakka
  • Singrauli
  • Koyana
  • Bhakra
  • Nagarjunsagar
Q25 | The expected life of wooden pols for transmission line is
  • 5 to 8 years
  • 1 to 2 years
  • 2 to 5 years
  • 20 to 25 years
  • 30 to 60 years