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What is a time variant system?

Name the types of generators (alternators) used in (1) thermal plant and (2) in hydel power plant.

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in Lesson 2 Generation, Transmission and Distribution of Electric Power an Overview by
Name the types of generators (alternators) used in (1) thermal plant and (2) in hydel power plant. 

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1 answer 45 views
What are the differences between a coal based thermal plant and a nuclear power plant?

What are the differences between a coal based thermal plant and a nuclear power plant?

asked Apr 3, 2018 in Lesson 2 Generation, Transmission and Distribution of Electric Power an Overview by Shimroz123
0 answers 35 views
A data dictionary is a special file that contains (1) The name of all fields in all files (2) Data types of all...

A data dictionary is a special file that contains  (1) The name of all fields in all files (2) Data types of all fields in all files (3) The width of all fields in all files (4) All of these

asked Apr 10, 2018 in Computer Engineering by Shimroz123
0 answers 32 views
In a hydel power station, the number of poles of an alternator is 24. At what rpm the alternator must...

In a hydel power station, the number of poles of an alternator is 24. At what rpm the alternator must be driven to produce 50 Hz voltage?

asked Apr 3, 2018 in Lesson 2 Generation, Transmission and Distribution of Electric Power an Overview by Shimroz123
0 answers 31 views
The pH value of water used for boiler of thermal power plant is

The pH value of water used for boiler of thermal power plant is (a) unity (b) 7 (c) slightly more than 7 (d) 10 

asked May 26, 2018 in Electric Power Generation by Shimroz123
1 answer 4 views
Explain ash disposal and dust collection in a thermal power plant.

Explain ash disposal and dust collection in a thermal power plant.

asked Sep 7, 2018 by Shimroz123
1 answer 41 views
Name three conventional ways of generating power. Of these three, which one contributes maximum generation in India.

Name three conventional ways of generating power. Of these three, which one contributes maximum generation in India.

asked Apr 3, 2018 in Lesson 2 Generation, Transmission and Distribution of Electric Power an Overview by Shimroz123
1 answer 17 views
Thermal plant

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asked Apr 3, 2018 in Lesson 2 Generation, Transmission and Distribution of Electric Power an Overview by Shimroz123
1 answer 13 views
For a 210 MW, turbo-alternator in a thermal power plant, the possible specifications of rotor diameter,...

For a 210 MW, turbo-alternator in a thermal power plant, the possible specifications of rotor diameter, stator core length, and number of poles, respectively, are (A) 4.4 m, 1.2 m, 12 (B) 1.2 m, 4.4 m, 2 (C) 4.4 m, 1.2 m, 24 (D) 1.2 m, 4.4 m, 8

asked Apr 25, 2018 in Electrical Engineering by Shimroz123
2 answers 16 views
Write any four advantages and four disadvantages of thermal power plant.

Write any four advantages and four disadvantages of thermal power plant.

asked Sep 7, 2018 by Shimroz123
1 answer 23 views
Two synchronous generators operating in parallel supply a common load of 2.5 MW. The frequency-power

Two synchronous generators operating in parallel supply a common load of 2.5 MW. The frequency-power characteristics have a common slope of 1 MW/Hz and the no-load frequencies of the generators are 51.5 Hz and 51.0 Hz, respectively. Then the system frequency is (A) 50 Hz (B) 51 Hz (C) 51.25 Hz (D) 51.5 Hz

asked Apr 28, 2018 in Electrical Machine by Shimroz123
0 answers 19 views
The auxiliary power consumption in a thermal power plant is

The auxiliary power consumption in a thermal power plant is (A) 2-5% (B) 5-10% (C) 10-15 % (D) 15-20%

asked May 13, 2018 in Electric Power Generation by Shimroz123
1 answer 10 views
State the different types of engines in diesel power plant.

State the different types of engines in diesel power plant.

asked Sep 7, 2018 by Shimroz123
1 answer 18 views
State the nature of protection provided for following types of faults; 1) Over voltage 2) Under voltage 3) High air pressure in air circuit 4) Low air pressure in air circuit

State the nature of protection provided for following types of faults; 1) Over voltage 2) Under voltage 3) High air pressure in air circuit 4) Low air pressure in air circuit

asked Sep 2, 2018 by Shimroz123
1 answer 48 views
The overall efficiency of Thermal Power Plant is equal to _______________ .

The overall efficiency of Thermal Power Plant is equal to _______________ .  (A) Regenerative Cycle Efficiency (B) Renkine Cycle Efficiency (C) Carnot cycle efficiency (D) None of the above

asked May 8, 2018 in Electric Power Generation by Shimroz123
1 answer 11 views
What is the other name used for DC generators?

What is the other name used for DC generators? A. Dynamos B. Alternator C. Capacitor D. Dynamotor 

asked Apr 12, 2018 in Electrical Engineering by Shimroz123
1 answer 27 views
In a thermal power plant, ash is collected in

In a thermal power plant, ash is collected in

asked May 3, 2018 in Electric Power Generation by Shimroz123
1 answer 28 views
Two light bulbs are connected in series across a 120 V battery. Bulb 1 uses 40 W of power and Bulb 2 uses

Two light bulbs are connected in series across a 120 V battery. Bulb 1 uses 40 W of power and Bulb 2 uses 20 W of power. If bulb 1 alone is connected to the 120 V source, then it will consume (A) 90 W (B) 80 W (C) 60 W (D) 180 W

asked Apr 25, 2018 in Electrical Engineering by Shimroz123
1 answer 13 views
Hydel plants

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asked Apr 3, 2018 in Lesson 2 Generation, Transmission and Distribution of Electric Power an Overview by Shimroz123
1 answer 14 views
State the function of cooling tower and condenser in thermal power station.

State the function of cooling tower and condenser in thermal power station.

asked Sep 8, 2018 by Shimroz123
1 answer 8 views
Which property of rubber is used in tyres? Name and explain the property.

Which property of rubber is used in tyres? Name and explain the property. 

asked Sep 3, 2018 by Shimroz123
1 answer 7 views
Consider the following statements : 1. Salient pole alternators have small diameters and large axial lengths....

Consider the following statements :  1. Salient pole alternators have small diameters and large axial lengths.  2. Cylindrical rotor alternators have a distributed winding.  3. Cylindrical rotor alternators are wound for large number of poles.  4. Salient pole alternators run at speeds slower than cylindrical rotor machines.  Which of the above statements are correct ?  (a) 1 and 3 only (b) 2 and 4 only (c) 1 and 4 only (d) 2 and 3 only

asked Apr 25, 2018 in Electrical Engineering by Shimroz123
1 answer 29 views
2.6 Single line representation of power system

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asked Apr 3, 2018 in Lesson 2 Generation, Transmission and Distribution of Electric Power an Overview by Shimroz123
0 answers 29 views
Name types of amplifiers and their applications
asked Oct 5, 2018 by anonymous
1 answer 558 views
Explain thermal power plant with diagram.

Explain thermal power plant with diagram.

asked Jun 23, 2018 in Electric Power Generation by anonymous
0 answers 16 views
the division of active power amongst alternators running in parallel depends upon

the division of active power amongst alternators running in parallel depends upon (1) speed-load characteristics of prime mover (2) V-I characteristics of alternator (3) Excitation voltages of alternators (4) Both (b) and (c) 

asked Apr 11, 2018 in Electrical Engineering by Shimroz123
1 answer 24 views
A single-phase transformer has a turns ratio of 1 :2 and is connected to a purely resistive load as shown in the

A single-phase transformer has a turns ratio of 1 :2 and is connected to a purely resistive load as shown in the figure. The magnetizing current drawn is 1A, and the secondary current is 1A. Ifcore losses and leakage reactances are neglected, the primary current is  A)1.41A B)2A C) 2.24A D)3A

asked May 20, 2018 in Transformer by Shimroz123
1 answer 11 views
State the function of a contactor in a power circuit of locomotive. List different types of it and state one application of each.

State the function of a contactor in a power circuit of locomotive. List different types of it and state one application of each.

asked Sep 2, 2018 by Shimroz123
1 answer 16 views
List any two types of fuels used in electrical power generation plants.

List any two types of fuels used in electrical power generation plants.

asked Sep 7, 2018 by Shimroz123
1 answer 17 views
State why nuclear power plants are used as base load plants and diesel power plants as a peak load plant.

State why nuclear power plants are used as base load plants and diesel power plants as a peak load plant. 

asked Sep 8, 2018 by Shimroz123
0 answers 45 views
For a balanced three phase star connected load for which line voltage is 230V and per phase resistance and reactance is 6 Ohm and 8 Ohm respectively. Calculate: 1) phase voltage 2) line current 3) power factor 4) total power absorbed

For a balanced three phase star connected load for which line voltage is 230V and per phase resistance and reactance is 6 Ohm and 8 Ohm respectively. Calculate: 1) phase voltage 2) line current 3) power factor 4) total power absorbed

asked Aug 12, 2018 in Basic electrical and electronics engineering by Quiz
1 answer 18 views
State the function of armature winding and name the material used for its construction.

State the function of armature winding and name the material used for its construction.

asked Sep 15, 2018 by Shimroz123
1 answer 6 views
State the following, 1) Position of head light 2) Supply voltage for flasher light 3) Colours used for marker light 4) Frequencies for engine horn.

State the following, 1) Position of head light 2) Supply voltage for flasher light 3) Colours used for marker light 4) Frequencies for engine horn. 

asked Sep 2, 2018 by Shimroz123
0 answers 59 views
The DFD is (1) modern version of flowchart (2) mainly used at system specification stage (3) primary output ...

The DFD is  (1) modern version of flowchart (2) mainly used at system specification stage (3) primary output of the system design phase (4) all of these

asked Apr 10, 2018 in Computer Engineering by Shimroz123
0 answers 26 views
An audit trail (1) is used to make backup copies (2) is the recorded history of operations performed on a file ...

An audit trail  (1) is used to make backup copies (2) is the recorded history of operations performed on a file (3) can be used to restore lost information (4) none of these

asked Apr 10, 2018 in Computer Engineering by Shimroz123
0 answers 19 views
Give some typical value of generated voltage in a power station. Why is it necessary to step up the...

Give some typical value of generated voltage in a power station. Why is it necessary to step up the voltage further before transmitting?

asked Apr 3, 2018 in Lesson 2 Generation, Transmission and Distribution of Electric Power an Overview by Shimroz123
1 answer 11 views
List any two types of relays and contactors with their function used in AC locomotive.

List any two types of relays and contactors with their function used in AC locomotive.

asked Sep 12, 2018 by Shimroz123
1 answer 17 views
Positive feedback is used in 1. Amplifier 2. Rectifier 3.Oscillator 4. Detector

Positive feedback is used in 1. Amplifier 2. Rectifier 3.Oscillator 4. Detector 

asked May 13, 2018 in Electronics Engineering by Shimroz123
0 answers 23 views
In C++ , a constructor is called whenever (1) an object is created (2) an object is used (3) a class is declared...

In C++ , a constructor is called whenever  (1) an object is created (2) an object is used (3) a class is declared (4) a class is used 

asked Apr 10, 2018 in Computer Engineering by Shimroz123
1 answer 30 views
Overall thermal efficiency of a steam power station in India is in the range:

 Overall thermal efficiency of a steam power station in India is in the range: A) 18-24 percent B) 30-40 percent C) 44-62 percent D) 68-79 percent

asked Jun 17, 2018 in Electric Power Generation by Shimroz123
0 answers 29 views
When two alternators A and B are operating in parallel, the increase in steam supply to alternator...

When two alternators A and B are operating in parallel, the increase in steam supply to alternator A will cause the active power output of (1) Alternator A to be decreased and alternator B to be increased (2) Alternators A and B is not affected (3) Alternators A and B is increased (4) Alternator A to be increased and alternator B to be decreased

asked Apr 11, 2018 in Electrical Engineering by Shimroz123
1 answer 5 views
State the advantages and disadvantages of hydroelectric power plant.

State the advantages and disadvantages of hydroelectric power plant.

asked Sep 8, 2018 by Shimroz123
1 answer 15 views
Classify different types of generators.

Classify different types of generators.

asked Sep 14, 2018 by Shimroz123
1 answer 9 views
Find the area of the triangle whose vertices are 4,3 1,4 and 2,3 .

Find the area of the triangle whose vertices are 4,3 1,4 and 2,3 . 

asked 4 days ago in Mathematics by Shimroz123
1 answer 10 views
Draw the symbol and state the applications of : 1) Push button switch 2) Selector switch 3) Solenoid valve 4) Limit switch

Draw the symbol and state the applications of : 1) Push button switch 2) Selector switch 3) Solenoid valve 4) Limit switch

asked Sep 2, 2018 by Shimroz123
0 answers 44 views
The connected load of a consumer is 2 kW and his maximum demand is 1.5 kW. The load factor of the

The connected load of a consumer is 2 kW and his maximum demand is 1.5 kW. The load factor of the consumer is (a) 0.375 (b) 0.75 (c) 1.33 (d) None of these  

asked May 26, 2018 in Electric Power Transmission by Shimroz123
1 answer 19 views
System 1 : The first column of the RH array consists of the terms 6,3,9,-2, and 4. System 2 : The first column of

System 1 : The first column of the RH array consists of the terms 6,3,9,-2, and 4. System 2 : The first column of the RH array consists of the terms 3,6,9,2, and -4. The number of unstable poles for system1, and system 2, are respectively, (A) 1,1 (B) none, none (C) 2,2 (D) 2,1

asked Apr 28, 2018 in Control System by Shimroz123
0 answers 27 views
The period of time between an allocation and its subsequent disposal is called (1) scope (2) lifetime...

The period of time between an allocation and its subsequent disposal is called  (1) scope (2) lifetime (3) longevity (4) dynamic binding

asked Apr 10, 2018 in Computer Engineering by Shimroz123

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