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MCQ
BASIC ELECTRONICS
CONTROL SYSTEM ENGINEERING
DIGITAL ELECTRONICS
ELECTRICAL CIRCUIT ANALYSIS
ELECTRICAL ENERGY CONSERVATION AND AUDITING
ELECTRICAL ENGINEERING MATERIALS
ELECTRICAL MACHINES
ELECTRICAL VEHICLES
ELECTRICAL WIRING
ELECTROMAGNETICS
MEASUREMENT & INSTRUMENTATION
MICROPROCESSOR AND MICROCONTROLLER INTERFACING
POWER ELECTRONICS & DRIVES
POWER SYSTEM
SIGNALS & SYSTEMS
UTILIZATION OF ELECTRICAL ENERGY
POWER SYSTEM
Q1.
A hydroelectric generating station is supplied from a reservoir with a capacity of \(5000000 \: cubic \: metres\) at a head of 200 metres and total energy available of \(2.044\times106\:kWh\) and water density \(=997\:kg/m^3\). Find out overall efficiency.
50%
100%
75%
25%
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Solution
Q2.
If a 6 m diameter wind turbine rotor has 24 blades, each 0.5 m wide, calculate its solidity.
83.60%
53.60%
73.60%
63.60%
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Solution
Q3.
Of the following choices, which best describes or defines BIOMASS?
Massive living things
Inorganic matter that can be converted to fuel
Organic matter that can be converted to fuel
Petroleum
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Solution
Q4.
Natural draft cooling towers are mainly used in
Steel industry
Alumina industry
Fertilizer industry
Power Stations
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Solution
Q5.
If the tip of a wind rotor blade is traveling at 45 m/s and the wind speed is 9 m/s, obtain the tip-speed ratio.
1
5
0.5
2.5
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Solution
Q6.
The desirable qualities of a power system are
High load factor and high diversity factor
Low load factor and low diversity factor
Low load factor and high diversity factor
High load factor and low diversity factor
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Solution
Q7.
How is energy performance of a plant measured?
(Current year's energy - Reference year equivalent) \(\times\) 100 / current year's energy
(Reference year equivalent - Current year's energy) \(\times\) 100 / Reference year equivalent
(Reference year equivalent - Current year's energy) \(\times\) 100 / Current year's energy
(Current year's energy - Reference year equivalent) \(\times\) 100 / Reference year equivalent
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Solution
Q8.
As load factor of plant increases cost of energy generation
Increases
Decrease
May increase or decrease
remains same
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Solution
Q9.
The initial cost of an equipment is \(Rs. \: 10,000.00 \) and its scrap value after useful life is zero. The annual rate of depreciation is \(10 \%\). Using diminishing value method, the depreciation charge for the second year is
Rs. 1000
Rs. 500
Rs. 900
Rs. 750
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Solution
Q10.
\(\mathbf{List-1 \: - Type \: of \: tariff :}\)
A. Block rate
B. Flat rate
C. Two part tariff
D. Power factor tariff
\(\mathbf{List-2 \: - Type \: of \: consumers:}\)
1. Large industrial
2. Medium industrial
3. Domestic and commercial
4. Agricultural and street lighting
A-3, B-4, C-2, D-1
A-1, B-2, C-3, D-4
A-2, B-3, C-4, D-1
A-4, B-1, C-2, D-3
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Solution
1
2
3
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