Power Plant

Out of the following, which ONE is not unconventional source of energy?

A. tidal power

B. geothermal power

C. nuclear power

D. wind energy

What is the reason why thermal power plant decrease capacity during summer?

A. decrease water level at the lake

B. temperature rise of the lake

C. taking a bath or swimming on lake

D. there is no rain

An effective remover of dusts, carbon particles and others from the flue gas of power plant?

A. Electrostatic precipitator

B. Soot blower and collector

C. Mechanical collector

D. Dust scrubber

The efficiency of the thermal power plant improves with__.

A. increased quality of coal burnt

B. use of high steam pressure

C. lower load in the plant

D. larger quantity of water used

Reheat cycle in steam power plant is used to

A. utilize heat of flue gases

B. increase thermal efficiency

C. improve condenser performance

D. reduce loss of heat

Which power plant can have a single unit up to 100 MW?

A. Hydroelectric power plant

B. Diesel power plant

C. Steam power plant

D. Nuclear power plant

Which of the following power plant will take the least time in starting from cold condition to full load condition?

A. Nuclear power

B. Steam turbine

C. Gas turbine

D. Hydro-electric

In fission, energy is produced when____.

A. chemical compunds split into its constituents

B. nuclear particles split

C. nuclear particles combine

D. molecules combine

Which of the following is a variable renewable energy (VRE)?

A. Gas turbine plant

B. Solar plant

C. Coal thermal plant

D. Diesel plant

What is the function of the surge tank in the hydropower plant?

A. Relieve water hammer pressures in the penstock pipe

B. Relieve water pressure in the boiler

C. Supply water at constant pressure

D. Produce surge pressure in the pipe line

Part of Hydroelectric power station that discharges the surplus water from storage reservoir into the river on the downstream side of the dam.

A. Penstock

B. Surge Tank

C. Spillway

D. Dam

How does the output of hydraulic turbine vary with the diameter of the blade?

A. It varies directly as the square of the diameter of the blade.

B. It varies directly as the two-third power of the diameter of the blade.

C. It varies directly as the diameter of the blade.

D. It varies directly as the cube of the diameter of the blade.

Base load plants are designed to supply power at___.

A. low capital cost & low operating cost

B. low capital cost & high operating cost

C. high capital cost & low operating cost

D. high capital cost & high operating cost

Peak load plants are designed to supply power at___.A. low capital cost & low operating costB. low capital cost & high operating costC. high capital cost & high operating costD. high capital cost & low operating cost

What is the meaning of "heat rate" of a generating unit?

A. The amount of fuel being used per hour

B. The amount of fuel energy being used per hour by the boiler

C. The amount of fuel energy used to produced one kWHR.

D. The amount of heat energy per hour being absorbed at the condenser.

Which of the following is the least efficient power plant?

A. Diesel

B. Gasoline

C. Coal fired

D. Combined cycle

A diesel power plant is best suited as ____.

A. base load

B. stand by

C. peak load

D. general purpose

Geothermal power plant is most suitable for ___.

A. Stand-by plant

B. Peak load plant

C. Regulating plant

D. Base load plant

One of the following methods of producing emf NOT yet in commercial use.

A. Solar

B. Thermal

C. Magnetic

D. Fuel Cell

Which of the following is enthalpy associated?

A. steam

B. electrostatic filter

C. coal

D. oil

In a steam turbine cycle, the lowest pressure occurs in the ___.

A. Boiler

B. Turbine inlet

C. Condenser

D. Super heater

Which one is essential for combustion of fuel?

A. oxygen to support combustion

B. correct fuel air ratio

C. proper ignition temperature

D. all of the above

Which of the following is a non-renewable source of energy?

A. solar

B. wind

C. nuclear

D. hydro

Which of the following element is radioactive?

A. Uranium

B. Cobalt

C. Californium

D. Plutonium

The energy of present nuclear plants comes from:

A. the fusion of radioactive materials

B. the friction of high speed electron against protons

C. the destruction of very tiny particles released when atoms split

D. the heat produced by the collision of high speed protons

In fusion, energy is produced when ___.

A. fuel burns

B. nuclear combines particle

C. nuclear particles divide

D. chemical compounds fused together

In the list below, which one is not a type of present day nuclear power plant?

A. low pressure reactor

B. boiling water

C. fusion-fission reactor

D. fast breeder reactor

Reflecting mirrors used for exploiting solar energy in a solar power plant is ___.

A. mantle

B. diffuser

C. ponds

D. heliostats

Of the various methods of utilizing the heat from the sun, one appears to be the most efficient so far. Which one is this?

A. self-contained collector

B. mirror and tracking system

C. direct application of lenses

D. flat plate collector

The turbine which is normally used in a tidal power plant is ___.

A. simple impulse type

B. reversible type

C. propeller type

D. irreversible type

The following are the essential parts of a hydroelectric power station EXCEPT:

A. spiral case

B. throttle valve

C. surge tank

D. impeller

The water behind the dam at a hydroelectric power plant is ___.

A. storage

B. pondage

C. reservoir

D. spillwater

The intale pipe to the hydraulic turbine from a dam is called ___.

A. tailrace

B. spiral casing

C. penstock

D. surge tank

Which plant can never have 100 percent load factor?

A. peak load plant

B. base load plant

C. nuclear power plant

D. Hydroelectric plant

A low utilization for a plant indicates that ___.

A. plant is under maintenance.

B. plant is used for stand by purpose only

C. plant is used for peak load as well as base load

D. plant is used for base load only

During load shedding, what happen?

A. system power factor is changed

B. some load are switched off

C. system voltage is reduced

D. system frequency is reduced

Which of the following generating station has the minimum running cost?

A. Nuclear power

B. Hydro-electric plant

C. Diesel plant

D. Thermal plant

Depreciation charges are high in the case of what power plant?

A. Windmill plant

B. Hydro-electric plant

C. Diesel plant

D. Thermal plant

The type of switchgear assembly commonly selected of used in a turbine-generator power plant is ____.

A. Vertical switchboard

B. Dual benchboard

C. Duplex benchboard

D. Enclosed switchboard

Compounding of steam turbine is done for

A. reducing the work done

B. increasing the rotor speed

C. reducing the rotor speed

D. balancing the turbine

In fuel cell, the ______ energy is converted into electrical energy.

A. mechanical

B. chemical

C. heat

D. sound

Rankine cycle efficiency of a good steam power plant may be in the range of

A. 15 to 20 percent

B. 35 to 45 percent

C. 70 to 80 percent

D. 90 to 95 percent

Rankine efficiency of a steam power plant

A. improves in summer as compared to that in winter

B. improves in winter as compared to that in summer

C. is unaffected by climatic conditions

D. none of the above

Economiser is used to heat

A. air

B. feed water

C. flue gases

D. all above

The modern steam turbines are

A. impulse turbines

B. reaction turbines

C. impulse-reaction turbines

D. none of the above

Artificial draught is produced by

A. air fans

B. steam jet

C. fan or steam jet

D. all of the above

Steam turbines are governed by the following methods

A. Throttle governing

B. Nozzle control governing

C. By-pass governing

D. all of the above

In steam turbines the reheat factor

A. increases with the increase in number of stages

B. decreases with the increase in number of stages

C. remains same irrespective of number of stages

D. none of the above

Steam turbines commonly used in steam power station are

A. condensing type

B. non-condensing type

C. none of the above

In coal preparation plant, magnetic separators are used to remove

A. dust

B. clinkers

C. iron particles

D. sand

The alternator is used in power plants which converts

A. Electrical Energy into Mechanical Energy

B. Electrical energy into Solar Energy

C. Mechanical Energy into Electrical Energy

D. Mechanical Energy into Nuclear Energy

The pressure at the furnaceis minimum in case of

A. forced draught system

B. induced draught system

C. Balanced draught system

D. Natural draught system

Minimum quantity of fuel is required

A. Thermal power plant

B. Nuclear power plant

C. Hydro electric power plant

D. Diesel power plant

The draught which a chimney produces is called

A. Induced draught

B. Natural draught

C. Forced draught

D. Balanced draught

The secondary sources of energy are

A. Coal,oil,uranium

B. Wood,animal waste,agriculture waste

C. Wind,biomass,geothermal

D. Solar,wind,water

The primary sources of energy are

A. Coal,oil,uranium

B. Wood,animal waste,agriculture waste

C. Wind,biomass,geothermal

D. Solar,wind,water

In fuel cell,chemical energy is converted into

A. Heat energy

B. Electrical energy

C. Mechanical energy

D. None of the above

The commercial souce of energy

A. Fossil fuels,hydropower,nuclear power

B. Wood,animal waste,agriculture waste

C. Solar,wind,biomass

D. None fo the above

The non-commercial souce of energy

A. Fossil fuels,hydropower,nuclear power

B. Wood,animal waste,agriculture waste

C. Solar,wind,biomass

D. None fo the above

Fan is located in induced draught

A. Near bottom of furnace

B. Near bottom of chimney

C. At the of chimney

D. Anywhere

The draught in locomotive boilers is produced by

A. Forced fan

B. Chimney

C. Steam jet

D. Only locomotive motion

Pipes carrying steam are generally made up of

A. Cast iron

B. Steel

C. Copper

D. Aluminium

Pulverised fuel is used for

A. Better burning

B. Saving fuel

C. Obtaining fuel

D. For economy