Electrical engineering is a professional engineering discipline that generally deals with the study and application of electricity, electronics, and electromagnetism.This field first became an identifiable occupation in the later half of the 19th century after commercialization of the electric telegraph, the telephone, and electric power distribution and use.Electrical engineering has now subdivided into a wide range of subfields including electronics, digital computers, computer engineering, power engineering, telecommunications, control systems, radio-frequency engineering, signal processing, instrumentation, and microelectronics.Electrical engineers typically hold a degree in electrical engineering or electronic engineering. Practicing engineers may have professional certification and be members of a professional body.Electrical engineers work in a very wide range of industries and the skills required are likewise variable. These range from basic circuit theory to the management skills required of a project manager. Just follow the Mcqs online quiz being dispatched over here with respect to your preparation for entry admission test NTS PPSC OTS PTS and missllenous job exams simultaneously.
Here we have large collection of Electrical Engineering Mcqs for all Students and jobs test preparation purpose. These Electrical Engineering Mcqs will be updated on daily basis and added more multiple choice question about Electrical Engineering frequently.You can prepare your Electrical Engineering Subject for different classes like 9th class, 10th class ,11th class 12th class exams, Entry Test like MCAT NTS ,OTS ,PTS ,BTS, GTS, Jobs Test,Recruitment Test like PPSC CSS FPSC SPSC KPPSC and interviews here.
Electrical Engineering Mcqs Online With Answers for NTS PPSC PTS Entry Test Classes
A. Light intensity, impedance
B. Temperature, resistance, reactance
C. Voltage and current
D. All of these
Right Answer: D. All of these
Total 0 Votes:
0
0
Tell us how can we improve this Mcqs?
The most efficient torque producing actuating structure for the induction type relays is?
A. Shaded pole structure
B. Watt hour meter structure
C. Induction cup structure
D. Single induction loop structure
Right Answer: C. Induction cup structure
Total 0 Votes:
0
0
Tell us how can we improve this Mcqs?
If the frequency of electrodynamic power factor meter is doubled then its reading will become?
A. Twice of the original reading
B. Half of the original reading
C. Four times of the original reading
D. Remains unaffected
Right Answer: D. Remains unaffected
Total 1 Votes:
0
1
Tell us how can we improve this Mcqs?
What should be the minimum depth of trench from the ground level for cables carrying a voltage between 3.3 kV and 11 kV?
A. 0.75 m plus radius of complete cable
B. 0.45 m plus radius of complete cable
C. 1.0 m plus radius of complete cable
D. All of these
Right Answer: A. 0.75 m plus radius of complete cable
Total 0 Votes:
0
0
Tell us how can we improve this Mcqs?
What is the unit of transmission loss coefficient?
A. MW
B. Unit less
C. (MW)-1
D. (MW)2
Right Answer: C. (MW)-1
Total 2 Votes:
1
1
Tell us how can we improve this Mcqs?
Which of the following circuit breakers has the lowest operating voltage?
A. SF6 circuit breaker
B. Air break
C. Air blast
D. Minimum oil circuit breaker
Right Answer: B. Air break
Total 0 Votes:
0
0
Tell us how can we improve this Mcqs?
What type of earthing is used by transmission lines?
A. Plate earthing
B. Rod earthing
C. Strip earthing
D. All of these
Right Answer: C. Strip earthing
Total 0 Votes:
0
0
Tell us how can we improve this Mcqs?
On what basis is the selection of fuse done?
A. Steady load
B. Fluctuating load
C. Both a and b
D. None of these
Right Answer: C. Both a and b
Total 0 Votes:
0
0
Tell us how can we improve this Mcqs?
Flat rate tariff is charged on what basis?
A. Connected load
B. Units consumed
C. Maximum demand
D. All of these
Right Answer: B. Units consumed
Total 0 Votes:
0
0
Tell us how can we improve this Mcqs?
The constant voltage transformers are most commonly used in?
A. Personal computers
B. Arc welding
C. Power distribution
D. Electric cars
Right Answer: A. Personal computers
Total 0 Votes:
0
0
Tell us how can we improve this Mcqs?
Why is the transmission lines transposed?
A. Reduce corona loss
B. Reduce skin effect
C. Prevent interference with the neighbouring telephone lines
D. Prevent short circuit between any two lines
Right Answer: C. Prevent interference with the neighbouring telephone lines
Total 0 Votes:
0
0
Tell us how can we improve this Mcqs?
The range of visible radiation lies betweenThe range of visible radiation lies between?
A. 2000 angstrom to 2500 angstrom
B. 4000 angstrom to 4500 angstrom
C. 5000 angstrom to 6000 angstrom
D. 4000 angstrom to 7500 angstrom
Right Answer: D. 4000 angstrom to 7500 angstrom
Total 0 Votes:
0
0
Tell us how can we improve this Mcqs?
The charging current drawn by the cable?
A. Lags behind the voltage by 90°
B. Leads the voltage by 90°
C. Are in phase with each other
D. Leads the voltage by 60°
Right Answer: B. Leads the voltage by 90°
Total 0 Votes:
0
0
Tell us how can we improve this Mcqs?
What is the arc voltage in a circuit breaker?
A. In phase with the arc current
B. Lagging the arc current by 90°
C. Leading the arc current by 90°
D. Lagging the arcing current by 180°
Right Answer: A. In phase with the arc current
Total 0 Votes:
0
0
Tell us how can we improve this Mcqs?
If an extra resistance is connected in the rotor circuit of slip ring induction motor, then?
A. Starting current and torque decreases
B. Starting current increases and torque decreases
C. Starting current decreases and torque increases
D. Starting current and torque increases
Right Answer: C. Starting current decreases and torque increases
Total 0 Votes:
0
0
Tell us how can we improve this Mcqs?
Secondary’s cells are?
A. lead acid cell
B. alkaline cell
C. Both a and b
D. None of these
Right Answer: C. Both a and b
Total 0 Votes:
0
0
Tell us how can we improve this Mcqs?
If a current of 5A flows through a resistor of 12 ohm then the power developed and the energy dissipated in 2 minutes are?
A. 300 W, 36000 J
B. 360 W, 30000 J
C. 380 W, 35000 J
D. 380 W, 36000 J
Right Answer: A. 300 W, 36000 J
Total 0 Votes:
0
0
Tell us how can we improve this Mcqs?
The fusing current of a fuse depends on its?
A. Material and its length
B. Length and its diameter
C. Material and diameter
D. Material, length and diameter
Right Answer: D. Material, length and diameter
Total 1 Votes:
0
1
Tell us how can we improve this Mcqs?
Which among these uses a low voltage DC source?
A. Remote indication
B. Emergency lighting system
C. Remote position control
D. All of these
Right Answer: D. All of these
Total 0 Votes:
0
0
Tell us how can we improve this Mcqs?
What is the source of heat generation in cables?
A. Copper loss in conductor
B. Dielectric losses in cable insulation
C. Losses in metallic sheathings and armouring
D. All of these
Right Answer: D. All of these
Total 0 Votes:
0
0
Tell us how can we improve this Mcqs?
The load carried by V – V connection is?
A. 47.7% of the original load
B. 57.7% of the original load
C. 67.7% of the original load
D. 87.7% of the original load
Right Answer: B. 57.7% of the original load
Total 1 Votes:
0
1
Tell us how can we improve this Mcqs?
In ac circuitμ the maximum current required is?
A. Equal to the effective current
B. 1.414 times the effective current
C. Twice the effective current
D. 1.732 times the effective current
Right Answer: B. 1.414 times the effective current
Total 0 Votes:
0
0
Tell us how can we improve this Mcqs?
What is the advantage of the static capacitors?
A. Low losses
B. Easy installation
C. Lower maintenance
D. All of the above
Right Answer: D. All of the above
Total 0 Votes:
0
0
Tell us how can we improve this Mcqs?
What is the maximum load that is permitted in a power circuit?
A. 5000 watts
B. 3000 watts
C. 2000 watts
D. 10000 watts
Right Answer: B. 3000 watts
Total 0 Votes:
0
0
Tell us how can we improve this Mcqs?
If the magnetic field is stationary and the conductor is in motion then the emf induced is called?
A. Dynamically induced emf
B. Statically induced emf
C. Self induced emf
D. Mutually induced emf
Right Answer: A. Dynamically induced emf
Total 0 Votes:
0
0
Tell us how can we improve this Mcqs?
Upto what voltage can the liquid type HRC fuses be used?
A. 33 kV
B. 120 kV
C. 66 kV
D. 132 kV
Right Answer: D. 132 kV
Total 0 Votes:
0
0
Tell us how can we improve this Mcqs?
At what condition does the corona start, if Es is the electrical stress and Ecr is the critical voltage?
A. Es > Ecr
B. Es = Ecr
C. Es < Ecr
D. Es << Ecr
Right Answer: A. Es > Ecr
Total 1 Votes:
0
1
Tell us how can we improve this Mcqs?
In AC bridges, the Wagner earth devices are used to?
A. Remove all the earth capacitances from the bridge circuit
B. Remove harmonics
C. Reduce error caused by stray electric field
D. All of these
Right Answer: D. All of these
Total 0 Votes:
0
0
Tell us how can we improve this Mcqs?
In an electrodynamic instrument, the number of control springs present is / are?
A. Zero
B. One
C. Two
D. Four
Right Answer: D. Four
Total 0 Votes:
0
0
Tell us how can we improve this Mcqs?
Double fourier series analysis of PWM is?
A. Two dimensional functions
B. Three dimensional functions
C. One dimensional functions
D. All of these
Right Answer: A. Two dimensional functions
Total 0 Votes:
0
0
Tell us how can we improve this Mcqs?
What is the reason for excess reading of the energy meter?
A. Defective wiring
B. Meter defects
C. Over voltage
D. Both a and b
Right Answer: D. Both a and b
Total 0 Votes:
0
0
Tell us how can we improve this Mcqs?
Which among the following buses constitute the maximum number in a power system?
A. Slack bus
B. P Q bus
C. P V bus
D. All of these
Right Answer: B. P Q bus
Total 0 Votes:
0
0
Tell us how can we improve this Mcqs?
With increase in temperature of the body, the emission of light waves is?
A. Increases
B. Decreases
C. Remain same
D. None of these
Right Answer: A. Increases
Total 0 Votes:
0
0
Tell us how can we improve this Mcqs?
The reactive power component kVAR is equal to the?
A. kVA sin∅
B. kW tan∅
C. kW cos∅
D. Both a and b
Right Answer: D.Both a and b
Total 1 Votes:
0
1
Tell us how can we improve this Mcqs?
If an induction motor is initially connected in delta and then reconnected in star then the current drawn will become?
A. Thrice of the current drawn when connected in delta
B. Twice of the current drawn when connected in delta
C. One third of the current drawn when connected in delta
D. Half of the current drawn when connected in delta
Right Answer: C. One third of the current drawn when connected in delta
Total 0 Votes:
0
0
Tell us how can we improve this Mcqs?
For a typical AC power supply, the secondary transmission carries the voltage of?
A. 11kV
B. 33kV
C. 66kV
D. 132kV
Right Answer: B. 33kV
Total 0 Votes:
0
0
Tell us how can we improve this Mcqs?
Determine the average demand of a plant if its load factor and maximum demand are 0.60 and 30 MW.
A. 20 MW
B. 18 MW
C. 50 MW
D. 13 MW
Right Answer: B. 18 MW
Total 0 Votes:
0
0
Tell us how can we improve this Mcqs?
Which of the following circuit breaker is highly reliable and has a least maintenance?
A. Oil circuit breakers
B. Air blast
C. Vacuum circuit breakers
D. SF6 circuit breakers
Right Answer: D. SF6 circuit breakers
Total 0 Votes:
0
0
Tell us how can we improve this Mcqs?
What is the factor of safety used for current ratings in a power installation?
A. 1
B. 1.75
C. 1.25
D. 2
Right Answer: D. 2
Total 1 Votes:
0
1
Tell us how can we improve this Mcqs?
In a square – wave operation of 3 phase CSIs, the power values are on for?
A. 60 degree
B. 90 degree
C. 120 degree
D. 150 degree
Right Answer: C. 120 degree
Total 0 Votes:
0
0
Tell us how can we improve this Mcqs?
In a three phase transformer, the angle between two consecutive cores is?
A. 30 degree
B. 60 degree
C. 120 degree
D. 160 degree
Right Answer: C. 120 degree
Total 1 Votes:
0
1
Tell us how can we improve this Mcqs?
Due to presence of third harmonic component in the star-star connection of three phase transformer, the frequency of the circuit component becomes?
A. Three times of the circuit frequency
B. One third of the circuit frequency
C. Remains same
D. None of these
Right Answer: A. Three times of the circuit frequency
Total 0 Votes:
0
0
Tell us how can we improve this Mcqs?
In leclanche cell, anode is packed in a porous pot containing ?
A. manganese dioxide
B. charcoal powder
C. sulphur dioxide
D. Only and b
Right Answer: D. Only a and b
Total 1 Votes:
0
1
Tell us how can we improve this Mcqs?
What is tariff?
A. The rate at which electrical energy is produced in the plant.
B. The rate at which electrical energy is supplied to the consumers.
C. Both a and b
D. None of these
Right Answer: B. The rate at which electrical energy is supplied to the consumers.
Total 0 Votes:
0
0
Tell us how can we improve this Mcqs?
In capacitor start capacitor run induction motor, the capacitor remains in circuit?
A. Only at start
B. Only during running condition
C. At start as well as during running condition
D. None of these
Right Answer: C. At start as well as during running condition
Total 0 Votes:
0
0
Tell us how can we improve this Mcqs?
When a voltmeter – ammeter method is applied for the measurement of resistance, the voltmeter reads a value of 8.28 V and the ammeter reading is 4.14 mA. Then the value of the resistance will be?
A. 2 kΩ
B. 2.0 kΩ
C. 2.00 kΩ
D. 2.000 kΩ
Right Answer: C. 2.00 kΩ
Total 0 Votes:
0
0
Tell us how can we improve this Mcqs?
In constant frequency PWM, at perturbation the amplitude of the sinusoidal component is a?
A. Linear function
B. Non linear function
C. Constant function
D. None of these
Right Answer: D. None of these
Total 0 Votes:
0
0
Tell us how can we improve this Mcqs?
Which among the following is not the type of digital voltmeters?
A. Ramp type
B. Integrating
C. Potentiometric type
D. None of these
Right Answer: D. None of these
Total 0 Votes:
0
0
Tell us how can we improve this Mcqs?
When the flux crosses the air gap, it bulges outward at the ends of the air gap and the flux density in the air gap is reduced. This is known as?
A. Leakage flux
B. Fringing
C. Relative permeability
D. Magnetizing force
Right Answer: B. Fringing
Total 0 Votes:
0
0
Tell us how can we improve this Mcqs?
Throwing power is the ability of the electrolyte to produce?
A. Uniform deposit on an article of regular shape
B. Uniform deposit on an article of irregular shape
C. Non – uniform deposit on an article of regular shape
D. Non – uniform deposit on an article of irregular shape
Right Answer: B. Uniform deposit on an article of irregular shape
Total 0 Votes:
0
0
Tell us how can we improve this Mcqs?
When an ac power is applied to a reactive load, then the voltage is?
A. In phase with the current
B. 90 degree out of phase with the current
C. 180 degree out of phase with the current
D. 270 degree out of phase with the current
Right Answer: B. 90 degree out of phase with the current
Total 0 Votes:
0
0
Tell us how can we improve this Mcqs?
For the measurement of low resistances from few ohms down to one micro ohm, which of the following instrument is not suitable?
A. Potentiometer method
B. Ammeter – voltmeter method
C. Ohmmeter
D. Kelvin double bridge method
Right Answer: C. Ohmmeter
Total 0 Votes:
0
0
Tell us how can we improve this Mcqs?
In a series RLC circuit, the wave front and wave tail times are controlled by changing the value?
A. R only
B. R and L simultaneously
C. R and C simultaneously
D. L and C simultaneously
Right Answer: B. R and L simultaneously
Total 0 Votes:
0
0
Tell us how can we improve this Mcqs?
The wattles component is?
A. I
B. I cos∅
C. I sin∅
D. None of these
Right Answer: C. I sin∅
Total 0 Votes:
0
0
Tell us how can we improve this Mcqs?
When a solenoid attracts an iron bar,?
A. They leave the south pole to go around to the north pole
B. They leave the north pole to go around to the south pole
C. They leave the north pole to go to infinity
D. They leave the south pole to go to the infinity
Right Answer: B. They leave the north pole to go around to the south pole
Total 0 Votes:
0
0
Tell us how can we improve this Mcqs?
Which among the following quantities are to be determined in voltage controlled bus?
A. P and Q
B. Q and |V|
C. |V| and δ
D. Q and δ
Right Answer: D. Q and δ
Total 0 Votes:
0
0
Tell us how can we improve this Mcqs?
The handle of iron box is made up of ?
A. Bakelite
B. Ebonite
C. Chromium
D. Only a and b
Right Answer: D. Only a and b
Total 0 Votes:
0
0
Tell us how can we improve this Mcqs?
Gauss’s law is applicable for?
A. Only point charge
B. Infinite line charge
C. Infinite sheet of charge
D. All of these
Right Answer: D. All of these
Total 0 Votes:
0
0
Tell us how can we improve this Mcqs?
In light emitting diode, the available light emitting region is ?
A. Less than 2.5 mm
B. From 2.5 to 25 mm
C. Greater than 25 mm
D. Greater than 50 mm
Right Answer: B. From 2.5 to 25 mm
Total 1 Votes:
0
1
Tell us how can we improve this Mcqs?
In a 3 phase half wave rectifier, when firing angle is less than 90 degree, then the average dc output voltage becomes?
A. Positive
B. Negative
C. Zero
D. None of these
Right Answer: A. Positive
Total 1 Votes:
0
1
Tell us how can we improve this Mcqs?
By using which component can the transient stability limit of a power system be improved?
A. Series resistance
B. Series capacitor
C. Series inductor
D. Shunt resistance
Right Answer: B. Series capacitor
Total 1 Votes:
0
1
Tell us how can we improve this Mcqs?
When a 100 V moving iron voltmeter is of accuracy class 1 – 0 is used in a circuit, it reads 50 V. Then the maximum possible percentage error in the reading is?
A. 1 %
B. 2 %
C. 2.5 %
D. 3 %
Right Answer: B. 2 %
Total 0 Votes:
0
0
Tell us how can we improve this Mcqs?
Primary current in a current transformer is determined by?
A. The load on the system
B. The load on its own secondary
C. The load on its own primary
D. All of these
Right Answer: A. The load on the system
Total 1 Votes:
0
1
Tell us how can we improve this Mcqs?
What is the main cause of voltage instability?
A. Generators
B. Transformers
C. Loads
D. Line losses
Right Answer: C. Loads
Total 0 Votes:
0
0
Tell us how can we improve this Mcqs?
The switching function of semiconductor devices can be characterized with?
A. Duty ratio only
B. Frequency only
C. Duty ratio and frequency
D. Duty ratio, frequency and time delay
Right Answer: D. Duty ratio, frequency and time delay
Total 0 Votes:
0
0
Tell us how can we improve this Mcqs?
The equivalent inductance of fixed coil and moving coil of electrodynamic instrument is given by?
A. L1 + L2 + 2M
B. L1 + L2 – 2M
C. L1 + L2 + M
D. L1 + L2 – M
Right Answer: A. L1 + L2 + 2M
Total 0 Votes:
0
0
Tell us how can we improve this Mcqs?
For Y – Δ and Δ – Y transformers, the phase shift between the transformer windings is equal to “ n * 30° “. What does ‘n’ represent in the equation?
A. Number of windings
B. Number of turns
C. Turn ratio
D. Hour number
Right Answer: D. Hour number
Total 0 Votes:
0
0
Tell us how can we improve this Mcqs?
The potential transformers are used to measure large voltage using?
A. High range voltmeter
B. Low range voltmeter
C. High range ammeter
D. Low range ammeter
Right Answer: B. Low range voltmeter
Total 0 Votes:
0
0
Tell us how can we improve this Mcqs?
Which among these is the least expensive protection for over current in low voltage system?
A. Rewirable fuse
B. Isolator
C. Circuit Breaker
D. Air breaker switch
Right Answer: A. Rewirable fuse
Total 0 Votes:
0
0
Tell us how can we improve this Mcqs?
A Capacitance Voltage Transformer can be connected to a?
A. High impedance device
B. Low impedance device
C. Relay coil
D. Only b and c
Right Answer: D. Only b and c
Total 0 Votes:
0
0
Tell us how can we improve this Mcqs?
For what voltage is the H type of poles used?
A. 22 kV
B. 130 kV
C. 11 kV
D. All of these
Right Answer: B. 130 kV
Total 0 Votes:
0
0
Tell us how can we improve this Mcqs?
In cascade control method, the set cannot be operated if?
A. PA > PB
B. PA < PB
C. PA = PB
D. None of these
Right Answer: C. PA = PB
Total 0 Votes:
0
0
Tell us how can we improve this Mcqs?
For the measurement of unknown inductance in terms of known capacitance, the suitable ac bridges are?
A. Maxwell and Schering bridge
B. Maxwell and Wien’s bridge
C. Maxwell and Hay’s bridge
D. Hay’s and Wien’s bridge
Right Answer: C. Maxwell and Hay’s bridge
Total 0 Votes:
0
0
Tell us how can we improve this Mcqs?
The positive sequence current is always equal to?
A. 1/3 of the negative sequence current
B. Always zero
C. Negative sequence current
D. 3 times the negative sequence current
Right Answer: C. Negative sequence current
Total 0 Votes:
0
0
Tell us how can we improve this Mcqs?
The current flowing through the resistance is given by?
A. I cos∅
B. I sin∅
C. I tan∅
D. I cot∅
Right Answer: A. I cos∅
Total 1 Votes:
0
1
Tell us how can we improve this Mcqs?
The non coincidence between loading and unloading curves is known as?
A. Zero drift characteristics
B. Sensitivity drift characteristics
C. Hysteresis
D. Zero drift plus sensitivity drift characteristics
Right Answer: C. Hysteresis
Total 0 Votes:
0
0
Tell us how can we improve this Mcqs?
The resistances of potential transformer winding is minimized by using?
A. Thick conductors and small length of turns
B. Thin conductors and small length of turns
C. Thin conductors and large length of turns
D. Thick conductors and large length of turns
Right Answer: A. Thick conductors and small length of turns
Total 1 Votes:
0
1
Tell us how can we improve this Mcqs?
The power required for electro-deposition is?
A. DC and very low voltage
B. DC and high voltage
C. AC and very low voltage
D. AC and high voltage
Right Answer: A. DC and very low voltage
Total 0 Votes:
0
0
Tell us how can we improve this Mcqs?
Swamping resistance is a resistance made up of ?
A. Alloy of manganin and copper
B. Alloy of aluminium and copper
C. Alloy of nickel and cobalt
D. Alloy of manganin and aluminium
Right Answer: A. Alloy of manganin and copper
Total 0 Votes:
0
0
Tell us how can we improve this Mcqs?
Where is the synchronous motor drive with cycloconverters used?
A. Compressors
B. Ball mills in cement plants
C. Fans
D. All of these
Right Answer: B. Ball mills in cement plants
Total 0 Votes:
0
0
Tell us how can we improve this Mcqs?
At what rated voltage is the shielded cable provided in a low voltage system?
A. Rated voltage < 1kV
B. Rated voltage < 500V
C. Rated voltage > 1 kV
D. Any of these
Right Answer: A. Rated voltage < 1kV
Total 0 Votes:
0
0
Tell us how can we improve this Mcqs?
Transmission of power by ac cables is impossible beyond?
A. 35 – 45 km
B. 500 km
C. 300 km
D. 10 – 15 km
Right Answer: A. 35 – 45 km
Total 1 Votes:
0
1
Tell us how can we improve this Mcqs?
Slip ring induction motor has?
A. Low starting torque
B. Medium starting torque
C. High starting torque
D. None of these
Right Answer: C. High starting torque
Total 1 Votes:
0
1
Tell us how can we improve this Mcqs?
To control which among the following is the regulating transformer used in a power system?
A. Power flows
B. Frequency
C. Voltage
D. Power factor
Right Answer: A. Power flows
Total 0 Votes:
0
0
Tell us how can we improve this Mcqs?
The earth resistance can be measured by ?
A. Fall of potential method
B. Using an earth tester
C. Ducter ohmmeter method
D. Only a and b
Right Answer: D. Only a and b
Total 0 Votes:
0
0
Tell us how can we improve this Mcqs?
Which section in the IE Act deals with the ‘theft of energy’?
A. Section 39
B. Section 40
C. Section 43
D. Section 44
Right Answer: A. Section 39
Total 1 Votes:
0
1
Tell us how can we improve this Mcqs?
The reduction of utility load primarily during peak demand is known as?
A. Peak clipping
B. Load shifting
C. Valley filling
D. MTP analysis
Right Answer: A. Peak clipping
Total 0 Votes:
0
0
Tell us how can we improve this Mcqs?
Bidirectional semiconductor device is?
A. Diode
B. BJT
C. SCR
D. TRIAC
Right Answer: D. TRIAC
Total 1 Votes:
0
1
Tell us how can we improve this Mcqs?
Which type of cable is used for underground service connections?
A. Low tension 3 ¼ core cable
B. Low tension 3 ½ core cable
C. Low tension 2 ¼ core cable
D. Low tension 2 ½ core cable
Right Answer: B. Low tension 3 ½ core cable
Total 0 Votes:
0
0
Tell us how can we improve this Mcqs?
Unipolar modulation is generally used in?
A. AC – AC converters
B. AC – DC converters
C. DC – AC converters
D. DC – DC converters
Right Answer: D. DC – DC converters
Total 1 Votes:
0
1
Tell us how can we improve this Mcqs?
What is the multiplication factor used for the determination of maximum current carrying capacity of an 11 kV line?
A. 0.88
B. 0.95
C. 0.9
D. 0.8
Right Answer: C. 0.9
Total 0 Votes:
0
0
Tell us how can we improve this Mcqs?
The resistance of an electric arc can be increased by?
A. Increasing the concentration of ionised particles
B. Reducing the arc length
C. Splitting the arc
D. Increasing the arc cross section
Right Answer: C. Splitting the arc
Total 0 Votes:
0
0
Tell us how can we improve this Mcqs?
The suitable lamps for street lighting are?
A. Mercury vapour lamps
B. Sodium discharge lamps
C. Both a and b
D. None of these
Right Answer: C. Both a and b
Total 0 Votes:
0
0
Tell us how can we improve this Mcqs?
What percentage of buses in the power system are generator buses?
A. 5 %
B. 25 %
C. 70 %
D. 10 %
Right Answer: D. 10 %
Total 0 Votes:
0
0
Tell us how can we improve this Mcqs?
Electrostatic instruments are generally used as?
A. Voltmeters
B. Ammeters
C. Wattmeters
D. Watt-hour meters
Right Answer: A. Voltmeters
Total 0 Votes:
0
0
Tell us how can we improve this Mcqs?
The transformer ratio of the transformer depends upon the?
A. Exciting current
B. Secondary current
C. Power factor of secondary circuit
D. All of these
Right Answer: D. All of these
Total 0 Votes:
0
0
Tell us how can we improve this Mcqs?
In percussion welding, the heat is produced by a rapid discharge of stored electrical energy from?
A. Capacitor
B. Inductor
C. Resistor
D. Transformer
Right Answer: A. Capacitor
Total 0 Votes:
0
0
Tell us how can we improve this Mcqs?
What is the limit of the conductor cross section when paper insulation is used?
A. 50 mm2
B. 250 mm2
C. 600 mm2
D. 1200 mm2
Right Answer: C. 600 mm2
Total 1 Votes:
0
1
Tell us how can we improve this Mcqs?
The disadvantages of resonant transformers is?
A. Pure sine wave output
B. No high power arcing
C. No repeated flashovers
D. Additional variable chokes
Right Answer: D. Additional variable chokes
Total 1 Votes:
0
1
Tell us how can we improve this Mcqs?
In a fuel cell, electrical energy is produced by?
A. Reaction of hydrogen with oxygen
B. Thermionic action
C. Combustion of fuel in the absence of oxygen
D. All of the above
Right Answer: A. Reaction of hydrogen with oxygen
Total 1 Votes:
0
1
Tell us how can we improve this Mcqs?
Please Refresh the Page for more and new Electrical Engineering Mcqs. Every time when you refresh the page you have new Mcqs for preparation.
