Explore topic-wise MCQs in Electrical Engineering Questions.

This section includes 59 Mcqs, each offering curated multiple-choice questions to sharpen your Electrical Engineering Questions knowledge and support exam preparation. Choose a topic below to get started.

1.

For a typical AC power supply, the secondary transmission carries the voltage of
A. 11kV
B. 33 kV
C. 66 kV
D. 132 kV
Answer» C. 66 kV
Discussion
2.

The capital cost of generating equipment, transmission system and distribution system comes under
A. Fixed capital
B. Running capital
C. Both fixed and running capital
D. All of these
E. None of these
Answer» B. Running capital
Discussion
3.

Which country has the biggest coal reserves?
A. Russia
B. US
C. China
D. India
Answer» C. China
Discussion
4.

LNG stands for
A. Liquefied natural gas
B. Liquid natural gas
C. Low nitrogen content gas
D. Liquid nitrogen gas
Answer» B. Liquid natural gas
Discussion
5.

In the given options, the non-commercial source of energy is
A. Coal
B. Lignite
C. Firewood
D. Refined petroleum products
Answer» E.
Discussion
6.

Which among the following is not the pronged approach to energy management?
A. Capacity utilization
B. Fine turning of equipment
C. Technology up gradation
D. All of these
E. None of these
Answer» F.
Discussion
7.

Which country has highest energy usage per capita?
A. Iceland
B. Qatar
C. Kuwait
D. United Arab emirates
Answer» B. Qatar
Discussion
8.

Which is the major energy source to meet the Indian energy demand?
A. Coal
B. Oil
C. Natural gas
D. Lignite
Answer» B. Oil
Discussion
9.

The energy strategies of companies have the principle of
A. restoring and preserving the environment
B. reducing wastes and pollutants
C. educating the people about energy conservation
D. all of these
E. none of these
Answer» E. none of these
Discussion
10.

The monitor and control of energy management system is done by using
A. MATLAB
B. SCADA
C. AUTO - CAED
D. All of these
E. None of these
Answer» C. AUTO - CAED
Discussion
11.

The rules of a particular electricity supply system provision for metering, earthing and for other installation matters are in accordance with the electricity supply act of
A. 1947
B. 1948
C. 1956
D. 1958
Answer» C. 1956
Discussion
12.

Energy conservation act was formed in the year
A. 1998
B. 1999
C. 2000
D. 2001
Answer» E.
Discussion
13.

The water pollution prevention and control act was formed in the year
A. 1986
B. 1974
C. 1981
D. 1980
Answer» C. 1981
Discussion
14.

The Indian electricity rules of 1956 cover
A. Inspections of electric installations
B. Licensing
C. General safety precautions
D. Only b and c
E. All of these
Answer» F.
Discussion
15.

In passive potential energy strategies,
A. There is no systematic planning
B. Measures with low profitability is not considered
C. One should have high knowledge of the energy price
D. All of these
Answer» B. Measures with low profitability is not considered
Discussion
16.

If the load current decreases then the power factor
A. Will also decrease
B. Will increase
C. Will remains unchanged
D. None of these
Answer» C. Will remains unchanged
Discussion
17.

Cloud base energy management system provides the ability to
A. Remotely control HVAC
B. Collect real time data
C. Generate intelligent, specific and real time guidance
D. Only b and c
E. All of these
Answer» F.
Discussion
18.

If power factor is less than unity then it will result in
A. Large kVA rating of equipment
B. Greater conductor size
C. Large copper losses
D. Only A and C
E. All of these
Answer» F.
Discussion
19.

In valley filling, the incremental costs during peak hours are
A. Less than the average costs of electricity
B. More than the average costs of electricity
C. Equal to the average cost of electricity
D. None of these
Answer» B. More than the average costs of electricity
Discussion
20.

The sum of money received or paid in annual in one or more installments, for a given period of time is known as
A. Time value of money
B. Annuity
C. True compounding
D. Cash flow
Answer» C. True compounding
Discussion
21.

The wattles component is
A. I
B. I cos∅
C. I sin∅
D. None of these
Answer» D. None of these
Discussion
22.

EPRI stands for
A. European power research institute
B. Electrical power Russian institute
C. Electrical power research institute
D. Electrical power research industries
Answer» D. Electrical power research industries
Discussion
23.

The future value of one dollar in “n” periods at interest rate of “I” present is known as
A. Single payment compound amount
B. Single payment present worth
C. Uniform series compound amount
D. Sinking fund payment
Answer» B. Single payment present worth
Discussion
24.

If L is the value of equipment at the end of its useful life, n is the number of years of useful life equipment and P is the initial cost than the annual depreciation rate is given by
A. ( P - L ) / n
B. ( p - n ) / L
C. ( L - n ) / P
D. n / ( L - P )
Answer» B. ( p - n ) / L
Discussion
25.

The pay period is defined as the ratio of
A. Net investment to the net annual cash flow
B. Net investment to the capital cost
C. Net annual cash flow to the capital cost
D. Net annual savings to the capital cost
Answer» B. Net investment to the capital cost
Discussion
26.

Power factor of a load can be improved by using
A. Static capacitors
B. Synchronous condenser
C. Phase advancer
D. Only a and b
E. All of the above
Answer» F.
Discussion
27.

The demand side management can be achieved by the technique of
A. Time of day pricing and metering
B. Multi - utility power exchange model
C. Load management
D. All of these
E. None of these
Answer» E. None of these
Discussion
28.

The electric power from primary distribution line is delivered to distribution substations by using
A. 1 phase wire
B. 3 phase, 3 wire
C. 3 phase, 4 wire
D. All of these
E. None of these
Answer» D. All of these
Discussion
29.

Demand Side Management is required to
A. Reduce overall cost of installed capacity
B. Reduce needs for peaking stations
C. Ensure quality and equity of supply
D. Only B and C
E. All of these
Answer» F.
Discussion
30.

The reduction of utility load primarily during peak demand is known as
A. Peak clipping
B. Load shifting
C. Valley filling
D. MTP analysis
Answer» B. Load shifting
Discussion
31.

The term Demand Side Management was coined during
A. 1936 energy crisis
B. 1972 energy crisis
C. 1973 energy crisis
D. 1986 energy crisis
Answer» D. 1986 energy crisis
Discussion
32.

Maximum demand charges are given in
A. kWh
B. kVA
C. kVAr
D. All of these
E. None of these
Answer» C. kVAr
Discussion
33.

Reactive power is measured in terms of
A. kW
B. kVA
C. kVAR
D. None of these
Answer» D. None of these
Discussion
34.

Power factor is the ratio of
A. Active power to the reactive power
B. Active power to the apparent power
C. Apparent power to the active power
D. Reactive power to the apparent power
Answer» C. Apparent power to the active power
Discussion
35.

Phase advancers are used to improve the power factor of
A. Induction motors
B. Induction generators
C. Synchronous motors
D. Synchronous generators
Answer» B. Induction generators
Discussion
36.

The current flowing through the resistance is given by
A. I cos∅
B. I sin∅
C. I tan∅
D. I cot∅
Answer» B. I sin∅
Discussion
37.

The main objective of energy management is to
A. Minimize energy cost
B. Minimum environmental effects
C. Maintain optimum energy procurement and utilization
D. Only A and B
E. All of these
Answer» F.
Discussion
38.

Energy management is a key component of
A. Environmental management
B. Carbon management
C. Nitrogen management
D. Water management
Answer» C. Nitrogen management
Discussion
39.

IFMA stands for
A. International Facility Management Association
B. Indian Facility Management Association
C. International Facility Management Academy
D. Indian Facility Management Academy
Answer» B. Indian Facility Management Association
Discussion
40.

Which among the following fuel is not available for thermal energy supply?
A. LSHS
B. LDO
C. LPG
D. All of these
E. None of these
Answer» F.
Discussion
41.

A sum of money is deposited in a SB account. If it is compounded annually at the rate of 8%, after 10 years it will become Rs 2,00,000. Then the sum of money is
A. Rs 92638.7
B. Rs 95233.1
C. Rs 96924.5
D. Rs 98888.1
Answer» B. Rs 95233.1
Discussion
42.

To save energy, Washington DC, has developed an investment analysis software package, ENVEST. This program can be run on an
A. IBM PC
B. PCXT
C. PCAT
D. All of these
Answer» E.
Discussion
43.

A tax credit substantially
A. Increases the investment merit of the investment
B. Decreases the investment merit of the investment
C. Does not cause any effect on the investment merit of the investment
D. None of these
Answer» B. Decreases the investment merit of the investment
Discussion
44.

The conversion factor for the standard power rating motor is equal to
A. 0.735
B. 0.746
C. 0.748
D. 0.756
Answer» C. 0.748
Discussion
45.

The rotational speed of an AC induction motor depends on the
A. Number of poles in stator
B. Frequency of the applied AC power
C. Both a and b
D. None of these
Answer» D. None of these
Discussion
46.

The basic function of electronic ballast is
A. To ignite the lamp
B. To stabilize the gas discharge
C. To supply the power to the lamp
D. Only a and c
E. All of these
Answer» F.
Discussion
47.

The efficiency of variable speed drives generally
A. Decreases with speed
B. Increases with speed
C. Remains constant with change in speed
D. None of these
Answer» B. Increases with speed
Discussion
48.

A conventional incandescent lamp has a luminous efficiency of
A. 10 lumens / watt
B. 12 lumens / watt
C. 14 lumens / watt
D. 14.6 lumens / watt
Answer» C. 14 lumens / watt
Discussion
49.

The reactive power component kVAR is equal to the
A. kVA sin∅
B. kW tan∅
C. kW cos∅
D. Both (a) and (b)
E. None of these
Answer» E. None of these
Discussion
50.

The production factor is defined as the ratio of
A. current year production to the reference year production
B. current year production to the reference month production
C. reference month production to the current month production
D. reference year production to the current year production
Answer» B. current year production to the reference month production
Discussion