200 Important Electrical Power Generation MCQ Question and Answer | PDF Free Download
1..In a four stroke engine, the four operations (suction, compression, expansion and exhaust) are completed in ____________ revolution(s) of crankshaft.
- A
- 8
- B
- 4
- C
- 2
- D
- 1
2.In a two stroke engine, the four operations (suction, compression, expansion and exhaust) are completed in ____________ revolution(s) of crankshaft.
- A
- 1
- B
- 2
- C
- 4
- D
- 8
3.In a two stroke engine, the four operations (suction, compression, expansion and exhaust) are completed in ____________ revolution(s) of crankshaft
- A1
- B2
- C4
- D8
4.Most of the heat generated in IC engines goes to
- ACooling water
- BExhaust gases
- CFriction, windage and radiation loses
- DLubricating oil
5.Reciprocating motion of piston is converted into rotary one by
- ACrank shaft
- BConnecting rod
- CGudgeon pin
- DGear box
6.A two stroke engine may be identified by
- ACooling system
- BLubrication system
- CAbsence of valves
- DAny of the above
7.The performance of engines of different outputs, speeds and sizes can be compared on the basis of
- ASpecific fuel consumption
- BCylinder volume
- CCompression ratio
- DPiston size
8.The thermal efficiency of a diesel engine in comparison to that of a petrol engine is
- ALower
- BHigher
- CThe same
- DMay be lower or higher
9.The temperature at which a lubricating oil will give sufficient vapours to from a combustible mixture with air is called the
- AFlash point
- BPour point
- CFire point
- DCombustion point
10.Which of the following will be the lowest for lubricating oil?
- AFlash point
- BPour point
- CFire point
- DCombustion point
11.Fire and flash points of oils are important from the point of view of
- AHeating value
- BViscosity
- CIgnition and storage hazards
- DTendency of freezing during winter
12.A gas turbine works on
- ACarnot Cycle
- BBrayton Cycle
- CDual Cycle
- DRankine Cycle
13.Gas turbine is widely used in
- ALocomotives
- BAutomobiles
- CAircrafts
- DPumping stations
14.Gas turbine power plants are not widely used
- AAs peak load plants
- BAs standby power plants
- CAs base load plants
- DIn combination with steam power plants
15.In comparison to diesel engines the gas turbines have maximum combustion pressure
- ALess
- BSame
- CMore
- DUnpredictable
16.Overall efficiency of gas turbine is
- ALess than that of diesel Cycle
- BMore than that of diesel Cycle
- CMore than that of otto Cycle
- DEqual to that of Rankine or Carnot Cycle
17.The materials used for electrodes in thermoelectric generators are
- AMetal conductors
- BCarbon
- CSemiconductors
- DInsulators
18.Thermionic convertor utilizes
- ASeeback effect
- BThermionic emission effect
- CPeltier effect
- DThomson effect
19.The solar or photovoltaic cell converts
- AChemical energy into electrical energy
- BSolar radiations into electrical energy
- CSolar radiations into thermal energy
- DThermal energy into electrical energy
20.Photovoltaic solar energy conversion system makes use of
- ASolar pond
- BFuel cell
- CEdison cell
- DNone of the above