Objective Electrical Power Plant Questions – Electrical Engineering (Page 3)

#41📘 EE Pocket Reviewer RojasEasy

What is the area under a load curve represent?

AAverage demand

BMaximum demand

CEnergy consumed

DTotal connected load

#42📘 EE Pocket Reviewer RojasEasy

Solar cells are made of which of the following?

ASilicon

BGermanium

CSilver

DAluminum

#43📘 EE Pocket Reviewer RojasEasy

Which power plant cannot have a single unit of 100 MW?

ADiesel power plant

BHydroelectric power plant

CSteam power plant

DNuclear power plant

#44📘 EE Pocket Reviewer RojasEasy

In which of the following power plants, is the availability of power is least reliable?

ASolar power plant

BWind power plant

CTidal power plant

DGeothermal power plant

#45📘 EE Pocket Reviewer RojasEasy

Which of the following is a usual characteristic of a base load plant?

AIt has a high capital cost, low operating cost and high load factor

BIt has a low capital cost, low operating cost and low load factor

CIt has a low capital cost, high operating cost and low load factor

DIt has a high capital cost, high operating cost and low load factor

#46📘 EE Pocket Reviewer RojasEasy

How do you call the graphical representation between discharge and time?

ALoad graph

BHydrograph

CPower graph

DNone of these

#47📘 EE Pocket Reviewer RojasEasy

Which of the following types of coal has the lowest calorific value?

ASteam coal

BBituminous coal

CLignite

DAnthracite

#48📘 EE Pocket Reviewer RojasEasy

In a substation, which of the following equipment is not installed?

AExciter

BSeries reactor

CShunt reactor

DTransformers

#49📘 EE Pocket Reviewer RojasEasy

How do you call the reflecting mirrors used for exploiting solar energy?

ADiffusers

BHeliostats

CPonds

DMantle

#50📘 EE Pocket Reviewer RojasEasy

Which of the following power plants has high maintenance cost?

ADiesel power plant

BHydroelectric plant

CNuclear power plant

DThermal power plant

#51📘 EE Pocket Reviewer RojasEasy

Most of the heat generated in an internal combustion engine is lost where?

ACooling water

BExhaust gases

CRadiation

DLubricating oil

#52📘 EE Pocket Reviewer RojasEasy

What is the usual speed of generators in a thermal power plant?

A3600 rpm

B1800 rpm

C500 rpm

D300 rpm

#53📘 EE Pocket Reviewer RojasEasy

A gas turbine works on which of the following principles?

ABrayton cycle

BRankine cycle

COtto cycle

DDiesel cycle

#54📘 EE Pocket Reviewer RojasEasy

How much is the average voltage of a single solar cell?

A0.5 volt

B1 volt

C1.3 volts

D2.6 volts

#55📘 EE Pocket Reviewer RojasEasy

Which of the following will improve the efficiency of a thermal power plant?

ALower the load in the plant

BUse of higher steam pressure

CUse larger quantity of water

DUse of lower steam pressure

#56📘 EE Pocket Reviewer RojasEasy

What do you call the ratio of the sum of the individual maximum demands to the maximum demand of the whole installation?

ADemand factor

BDiversity factor

CPlant use factor

DPlant capacity factor

#57📘 EE Pocket Reviewer RojasEasy

Which of the following statements describes a Francis turbine?

AIt is an outward flow impulse turbine

BIt is an outward flow reaction turbine

CIt is an inward flow impulse turbine

DIt is an inward flow reaction turbine

#58📘 EE Pocket Reviewer RojasEasy

Which of the following ratio is called load factor?

AMaximum load / average load

BAverage load / installed capacity

CMaximum load / installed capacity

DAverage load / maximum load

#59📘 EE Pocket Reviewer RojasEasy

In a steam turbine cycle, the lowest pressure is located where?

AIn the turbine inlet

BIn the boiler

CIn the superheater

DIn the condenser

#60📘 EE Pocket Reviewer RojasEasy

In a power plant, how do you call a reserved generating capacity which is in operation but not in service?

AHot reserve

BCold reserve

CSpinning reserve

DFast reserve

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