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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