Mid bank
Power Generation Quiz: Test Your Knowledge
Welcome to the Power Generation Quiz! This engaging quiz consists of 34 multiple-choice questions designed to challenge your understanding of various power generation methods and principles.
Key Features:
- Multiple choice format
- Covers topics from thermal to hydro power
- Great for students and industry professionals
Which of the following generation station has minimum running cost?
Thermal power station
Hydro-electric power station
Nuclear power station
None of these
Wind energy
Is clean, almost free and domestically produced
Has higher cost comparatively
Develops power proportional to the power of the wind
All of these
The alternator is used in power plants which converts.......
Electrical Energy into Mechanical Energy
Electrical energy into Solar Energy
Mechanical Energy into Electrical Energy
Mechanical Energy into Nuclear Energy
Minimum quantity of fuel is required for the following station:
Thermal power plant
Nuclear power plant
Hydroelectric power plant
Diesel power plant
An alternator coupled to a------ runs at slow speed, as compared to the other types of prime mover.
Diesel engine
Hydraulic turbine
Steam turbine
Gas turbine
A pilot exciter (brushless exciter) is provided on generator for the following reasons:
To excite the poles of main exciter (rotor)
To provide requisite starting torque to main exciter
To provide requisite starting torque to generator
None of the above
The power of the generator and the alternator and transformer is usually rated in
KW
KVAR
KWh
KVA
-------Can generate power at unpredictable or uncontrolled times
Solar power plant
Tidal power plant
Wind power plant
Any of the above
------is almost inevitably used as base load plant (high power plant)
Diesel engine plant
Gas turbine plant
Nuclear power plant
Pumped storage plant
In ______ fuel transportation cost is least
Nuclear power plants
Diesel generating plants
Steam power stations
None of the above
Which of the following power plants need the least period for installation?
Thermal power plant
Diesel power plant
Nuclear power plant
Hydro-electric power plant
Following power plant has instant starting
A) nuclear power plant.
B) hydro power plant.
C) diesel power plant.
D) both (B) and (C).
Different generating stations use the following prime movers
Diesel engine
Hydraulic turbine
Gas turbine
Any of the above
Reactive power is expressed in?
Watts (W)
Volt Amperes Reactive (VAR)
Volt Ampere (VA
No units
The power factor is the ratio of ________ power to the ______ power.
Average (active or real), apparent
Apparent, reactive
reactive, average
apparent, average (active or real)
Power factor is the ratio of
Active power to the reactive power.
Active power to the apparent power.
Apparent power to the active power.
Reactive power to the apparent power.
The power factor at resonance in R-L-C parallel circuit is
Zero
0.08 lagging
0.8 leading
Unity
In a circuit having leading power factor, current waveform leads the voltage waveform:
True
False
A 10-pole ac generator rotates at 1200 rpm. The frequency of ac voltage in cycles per second will be:
110
100
50
120
As the speed of the alternator increase
The frequency decreases
Frequency increases
Frequency remain constant and power factor decrease
None of the above
Magnetization curve for the synchronous generator represents the relationship between:
Excitation current and terminal voltage
Power factor and terminal voltage
Magnetic flux and armature current
Reactive and non-reactive components of voltages
A 10 pole AC generator rotates at 1200 rpm. The frequency of AC voltage in cycles per second will be
120
110
100
50
As the speed of an alternator increases
The frequency increases.
The frequency decreases.
The frequency remains constant but power factor decreases.
None of the above.
Synchronous generator is also known as:
Degenerator
Alternator
Decoupler
Magnetostat
A 4 pole, 50 Hz alternator will turn at:
1500 RPM
3000 RPM
6000 RPM
12000 RPM
Rotor winding of alternator is also known as:
Field winding
Armature winding
Protruding winding
Nonsalient winding
The type of alternator field winding poles on the rotor used in hydropower stations:
Turbo
Salient pole
Non-salient
Any of the above
Practically, most of the alternators prefer which type of construction?
Rotating field type.
Rotating armature type.
Both are equally important.
None of these.
How is the hydro-generator driven by:
Water turbine
Steam turbine
internal combustion engines
control of reactive power networks
Stator winding in alternator is also known as:
Field winding
Armature Winding.
Protruding winding.
None of these.
Which of the following speed suitable for the hydro-generators?
100-1000 rpm
5000 rpm
1500 rpm
3000 rpm
Lamination of the transformer core is made of:
Cast Iron
Silicon Steel
Aluminum
Cast Steel
Transformer core are laminated in order to:
Reduce hysteresis loss
Reduce hysteresis & eddy current loss
Minimize eddy current loss
Copper loss
the ----- change before and after the transformer.
Current
Voltage & current
Frequency
Voltage
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