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. 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?
Ballistic galvanometer are principally used for the measurement of ?
A. Current
B. Voltage
C. Power
D. Electric charges
Right Answer: D. Electric charges
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?
For extinguishing arc in an high voltage fuses, the element can be immersed in?
A. Oil
B. Carbon tetrachloride
C. Carbon tetrafloride
D. Only a and b
Right Answer: A. Only a and b
Total 0 Votes:
0
0
Tell us how can we improve this Mcqs?
The unit of electrical energy is / are?
A. Watt – sec
B. Joules
C. Kilowatt – hour
D. All of these
Right Answer: D. All of these
Total 1 Votes:
1
0
Tell us how can we improve this Mcqs?
In four – point starter, the no volt release is connected across the?
A. Supply line through a protective resistance
B. In series with field circuit through a protective resistance
C. Either (a) or (b)
D. None of these
Right Answer: A. Supply line through a protective resistance
Total 0 Votes:
0
0
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?
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?
The Graetz bridge makes excellent use of?
A. Current transformer
B. Potential transformer
C. Power transformer
D. SCR
Right Answer: C. Power transformer
Total 0 Votes:
0
0
Tell us how can we improve this Mcqs?
Wheatstone bridge is suitable for the measurement of?
A. Low resistance
B. Medium resistance
C. High resistance
D. Very high resistance
Right Answer: B. Medium resistance
Total 0 Votes:
0
0
Tell us how can we improve this Mcqs?
A single phase line has two parallel conductors 2 metre apart. The diameter of each conductor is 1.2 cm. What is the loop inductance per km of the line?
A. 2.423 mH
B. 1.234 mH
C. 3.267 mH
D. 8.632 mH
Right Answer: A. 2.423 mH
Total 0 Votes:
0
0
Tell us how can we improve this Mcqs?
The transfer function of PWM is generally developed in?
A. Time domain
B. Frequency domain
C. Either a or b
D. None of these
Right Answer: C. Either a or b
Total 1 Votes:
0
1
Tell us how can we improve this Mcqs?
What is the expression for the amplitude of the reflected wave?
A. Ir = [ (R + Z) / (R – Z) ] It
B. Ir = [ (R – Z) / Z ] It
C. Ir = [ (R – Z) / (R + Z) ] It
D. Ir = [ (R + Z) / Z ] It
Right Answer: C. Ir = [ (R – Z) / (R + Z) ] It
Total 0 Votes:
0
0
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?
The amount of flux density set up in the core is dependent upon?
A. Current
B. No. of turns, cross sectional area of core
C. Materials of the magnetic core, length of core
D. All of these
Right Answer: D. All of these
Total 0 Votes:
0
0
Tell us how can we improve this Mcqs?
For the measurement of radio interference voltages, the detector circuit is provided with a measuring device to measure?
A. Average value
B. Peak value
C. Quasi-peak value
D. All of these
Right Answer: D. All of these
Total 0 Votes:
0
0
Tell us how can we improve this Mcqs?
The leakage current must not be more than ____________ of maximum supply current.
A. 1 / 1000
B. 1 / 100
C. 1 / 5000
D. 1 / 500
Right Answer: C. 1 / 5000
Total 0 Votes:
0
0
Tell us how can we improve this Mcqs?
The potential difference between two points is given by?
A. V = E / Q
B. V = W / Q
C. V = Q / E
D. V = Q / W
Right Answer: B. V = W / Q
Total 0 Votes:
0
0
Tell us how can we improve this Mcqs?
The ac voltage controller can be used for?
A. Lighting and heating control
B. On – line transformer tap changing
C. Soft starting
D. All of these
Right Answer: D. All of these
Total 1 Votes:
0
1
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?
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?
What is the speed range of poly phase Commutator motors?
A. 0.5 Ns to 1 Ns
B. 0.5 Ns to 1.5 Ns
C. 0.1 Ns to 2 Ns
D. 0.5 Ns to 2.5 Ns
Right Answer: B. 0.5 Ns to 1.5 Ns
Total 1 Votes:
0
1
Tell us how can we improve this Mcqs?
The positive plates of nickel iron cell is made up of?
A. Nickel hydroxide
B. Lead peroxide
C. Ferrous hydroxide
D. Potassium hydroxide
Right Answer: A. Nickel hydroxide
Total 1 Votes:
0
1
Tell us how can we improve this Mcqs?
Filters are used to convert?
A. Pulsating dc signal into a pure dc signal
B. Pure dc signal into a pulsating dc signal
C. Pulsating dc signal into a pure ac signal
D. Pulsating ac signal into a pure dc signal
Right Answer: A. Pulsating dc signal into a pure dc signal
Total 0 Votes:
0
0
Tell us how can we improve this Mcqs?
Protective relays can be designed to respond to?
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 linear variable differential transformer transducer is?
A. Inductive transducer
B. Non – inductive transducer
C. Capacitive transducer
D. Resistive transducer
Right Answer: A. Inductive transducer
Total 0 Votes:
0
0
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?
Double edge modulation eliminates certain harmonics when the reference is a?
A. Sine wave
B. Square wave
C. Triangular wave
D. Trapezoidal wave
Right Answer: A. Sine wave
Total 0 Votes:
0
0
Tell us how can we improve this Mcqs?
In DOL fuses are provided to protect against?
A. Short circuit protection
B. Over voltage
C. Over current
D. Over load
Right Answer: A. Short circuit protection
Total 0 Votes:
0
0
Tell us how can we improve this Mcqs?
Heating element of electric iron box is an alloy of?
A. Copper and nickel
B. Nickel and cobalt
C. Iron and magnesium
D. Nickel and chromium
Right Answer: D. Nickel and chromium
Total 0 Votes:
0
0
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?
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?
According to the Faraday’s first laws of electrolysis, the mass of substance liberated during electrolysis is?
A. Directly proportional to the current flowing through the electrolyte
B. Directly proportional to time for which current flows
C. Directly proportional to the charge
D. Only a and b
Right Answer: D. Only a and b
Total 1 Votes:
0
1
Tell us how can we improve this Mcqs?
In a steam power station, electric power is generated at what power?
A. 440 V
B. 1.1 V
C. 11 V
D. 33 V
Right Answer: C. 11 V
Total 0 Votes:
0
0
Tell us how can we improve this Mcqs?
Phase advancers are used to improve the power factor of?
A. Induction motors
B. Induction generators
C. Synchronous motors
D. Synchronous generators
Right Answer: A. Induction motors
Total 0 Votes:
0
0
Tell us how can we improve this Mcqs?
A variable charge is based on what?
A. Energy consumption
B. Maximum demand
C. Peak load demand
D. All of the above
Right Answer: A. Energy consumption
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?
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?
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?
Advantage of using electron beam welding is / are?
A. Welds are clean
B. Absence of porosity
C. Distortion less
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 normal range of angle for the parameter A?
A. 90 °
B. 70 ° – 40 °
C. 40 ° – 10 °
D. 0 – 10 °
Right Answer: D. 0 – 10 °
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?
In double delta transformation, a double delta refers to the case where there are two delta transformations in?
A. Parallel
B. Series
C. Both series and parallel
D. Neither series nor parallel
Right Answer: B. Series
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?
Which equipment is used for EHV lines to improve power transferability?
A. Shunt capacitor
B. Shunt reactor
C. Series capacitor
D. All of these
Right Answer: C. Series capacitor
Total 0 Votes:
0
0
Tell us how can we improve this Mcqs?
The cut – in voltage for silicon and germanium are?
A. 0.3 V, 0.3 V
B. 0.3 V, 0.7 V
C. 0.7 V, 0.7 V
D. 0.7 V, 0.3 V
Right Answer: D. 0.7 V, 0.3 V
Total 0 Votes:
0
0
Tell us how can we improve this Mcqs?
If the transformation ratio of an autotransformer is given by V2 / V1 then the ratio of power transferred to that of input power is given by?
A. (V2-V1) / V1
B. (V2+V1) / V1
C. (V1-V2) / V1
D. V2 / V1
Right Answer: D. V2 / V1
Total 1 Votes:
0
1
Tell us how can we improve this Mcqs?
Which material has a lower dielectric strength at 50 Hz?
A. Bakelite
B. Glass
C. Air
D. None of these
Right Answer: C. Air
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?
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?
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?
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?
Which among these waves is called a standard lightning impulse wave?
A. 1.2 / 100 microsecond wave
B. 1.2 / 50 microsecond wave
C. 2.4 / 100 microsecond wave
D. 2.4 / 50 microsecond wave
Right Answer: B. 1.2 / 50 microsecond wave
Total 0 Votes:
0
0
Tell us how can we improve this Mcqs?
For carrying out parallel operation, transformers should have same X / R ratio in order to avoid?
A. Leakage reactance
B. Insulation failure
C. Circulating current
D. Inrush current
Right Answer: C. Circulating current
Total 0 Votes:
0
0
Tell us how can we improve this Mcqs?
If the armature current of dc series motor has become twice then the torque will become?
A. Twice of the former
B. Four times of the former
C. One fourth of the former
D. Remains same
Right Answer: B. Four times of the former
Total 1 Votes:
0
1
Tell us how can we improve this Mcqs?
In lead acid accumulators, the container is filled with distilled water and concentrated sulphuric acid in the ratio of ?
A. 1:2
B. 2:1
C. 3:1
D. 1:3
Right Answer: C. 3:1
Total 0 Votes:
0
0
Tell us how can we improve this Mcqs?
In electrodynamic instruments, the operating field is produced by?
A. Permanent magnet
B. Fixed coil
C. Moving coil
D. All of these
Right Answer: B. Fixed coil
Total 1 Votes:
0
1
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?
Slip of an induction motor increases with?
A. increase in current and decrease in torque
B. increase in current and torque
C. decrease in current and torque
D. decrease in current and increase in torque
Right Answer: B. increase in current and torque
Total 0 Votes:
0
0
Tell us how can we improve this Mcqs?
Which method is used for locating cable fault?
A. Bridge method
B. Tracer method
C. Both bridge and tracer method
D. None of these
Right Answer: C. Both bridge and tracer method
Total 0 Votes:
0
0
Tell us how can we improve this Mcqs?
For moment of inertia to be small in two phase servomotor, the ratio of rotor diameter to its length should be?
A. Equal to 1
B. Small
C. Large
D. All of these
Right Answer: B. Small
Total 1 Votes:
0
1
Tell us how can we improve this Mcqs?
What should be the value of earthing resistance for large power stations?
A. 1 Ω
B. 0.5 Ω
C. 2 Ω
D. 5 Ω
Right Answer: B. 0.5 Ω
Total 0 Votes:
0
0
Tell us how can we improve this Mcqs?
What is the main purpose of oil in oil circuit breakers?
A. Provide insulation
B. Quenching arc.
C. Provide cooling of contacts.
D. None of the above
Right Answer: B. Quenching arc.
Total 0 Votes:
0
0
Tell us how can we improve this Mcqs?
Electric heaters is made up of?
A. Chromed iron
B. Brass
C. Steel
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 type of tripping is generally preferred for the circuit breaker?
A. Manual
B. Automatically
C. Depending on the voltage level
D. None of the above
Right Answer: B. Automatically
Total 0 Votes:
0
0
Tell us how can we improve this Mcqs?
To move electrons from valence band to conduction band, the energy applied to the insulator is?
A. Less than 15 eV
B. Equal to 15 eV
C. More than 15 eV
D. More than 25 eV
Right Answer: C. More than 15 eV
Total 0 Votes:
0
0
Tell us how can we improve this Mcqs?
On what factor does the operating speed of the relay depend?
A. Rate of flux built up
B. Armature core air gap
C. Spring tension
D. All of these
Right Answer: D. All of these
Total 2 Votes:
0
2
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?
What does the area under the load curve represent?
A. System voltage
B. Current
C. Energy consumed
D. Maximum demand
Right Answer: C. Energy consumed
Total 1 Votes:
1
0
Tell us how can we improve this Mcqs?
The capacitance effect can be neglected in which among the transmission lines?
A. Short transmission lines
B. Medium transmission lines
C. Long transmission lines
D. All of these
Right Answer: A. Short transmission lines
Total 0 Votes:
0
0
Tell us how can we improve this Mcqs?
The power absorbed by a pure inductive circuit and pure capacitive circuit is?
A. Zero and non zero
B. Non zero and zero
C. Non zero and non zero
D. Zero and zero
Right Answer: D. Zero and zero
Total 0 Votes:
0
0
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?
Which lamp is used in the outdoor illumination of buildings and airport runway?
A. Halogen lamp
B. Gaseous discharge lamp
C. Sodium vapour lamp
D. All of these
Right Answer: A. Halogen lamp
Total 1 Votes:
0
1
Tell us how can we improve this Mcqs?
What is the modern trend in electric power generation?
A. To have a large number of small size thermal plants located at different places.
B. To have large size thermal plants near load centre.
C. To have large size thermal plants located near coal fields.
D. None of the above.
Right Answer: C. To have large size thermal plants located near coal fields.
Total 0 Votes:
0
0
Tell us how can we improve this Mcqs?
The motor which is most suitable for the traction work is / are?
A. DC series motor
B. DC shunt motor
C. Single phase ac series motor
D. Three phase induction motor
Right Answer: A. DC series motor
Total 0 Votes:
0
0
Tell us how can we improve this Mcqs?
Flood lighting is used for?
A. For enhancing the beauty of building at nights
B. For illuminating sports stadium
C. For illuminating show cases
D. All of these
Right Answer: D. All of these
Total 0 Votes:
0
0
Tell us how can we improve this Mcqs?
Upto what motor ratings, the HRC fuse can be used as a protective device?
A. 500 V
B.1000 V
C. 1500 V
D. 5000 V
Right Answer: B. 1000 V
Total 2 Votes:
0
2
Tell us how can we improve this Mcqs?
The frequency of the induced emf in an induction motor is?
A. Greater than the supply frequency
B. Lesser than the supply frequency
C. Same as the supply frequency
D. None of these
Right Answer: C. Same as the supply frequency
Total 0 Votes:
0
0
Tell us how can we improve this Mcqs?
In a power station, the cost of generation of power reduces most effectively when?
A. Diversity factor alone increases.
B. Both diversity factor and load factor increases.
C. Only load factor increases.
D. Both diversity factor and load factor decreases.
Right Answer: B. Both diversity factor and load factor increases.
Total 0 Votes:
0
0
Tell us how can we improve this Mcqs?
Electrodynamic instruments can be used as?
A. Ammeter
B. Voltmeter
C. Wattmeter
D. All of these
Right Answer: D. All of these
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 flow meter which is replacing the differential pressure meters in its applications is?
A. Vortex-shedding flow meter
B. Electromagnetic flow meters
C. Ultrasonic flow meters
D. All of these
Right Answer: A. Vortex-shedding flow meter
Total 0 Votes:
0
0
Tell us how can we improve this Mcqs?
For application in electric locomotives or for traction purposes, the most suitable motor is?
A. Dc series motor
B. Differentially compounded motor
C. Cumulatively compounded motor
D. None of these
Right Answer: A. Dc series motor
Total 0 Votes:
0
0
Tell us how can we improve this Mcqs?
The power curve for a purely resistive circuit is zero only when?
A. Current is zero
B. Voltage is zero
C. Both current and voltage is zero
D. None of these
Right Answer: C. Both current and voltage is zero
Total 0 Votes:
0
0
Tell us how can we improve this Mcqs?
Which among these fuse is very fast in operation?
A. Semiconductor fuses
B. High rupturing capacity
C. Cartridge type
D. Kit Kat type
Right Answer: A. Semiconductor fuses
Total 1 Votes:
0
1
Tell us how can we improve this Mcqs?
The product of rms values of current and voltage is called as?
A. Real power
B. Apparent power
C. Reactive power
D. Polar curves
Right Answer: B. Apparent power
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?
Why are load flow studies carried out?
A. To study of stability of the system
B. For fault calculations
C. For planning the power system
D. All of these
Right Answer: C. For planning the power system
Total 0 Votes:
0
0
Tell us how can we improve this Mcqs?
At low temperature, the semi conductor behaves as a?
A. Perfect insulator
B. Perfect conductor
C. Perfect consulator
D. None of these
Right Answer: C. Perfect consulator
Total 1 Votes:
1
0
Tell us how can we improve this Mcqs?
The current efficiency is defined as the ratio of?
A. Actual quantity of the substance deposited to the theoretical quantity of the substance deposited
B. Actual quantity of the substance deposited to the theoretical quantity of the substance liberated
C. Theoretical quantity of the substance deposited to the actual quantity of the substance deposited
D. Theoretical quantity of the substance deposited to the actual quantity of the substance liberated
Right Answer: B. Actual quantity of the substance deposited to the theoretical quantity of the substance liberated
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?
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?
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?
In a 3 phase VSI out of eight valid states, the number of valid states that produce zero ac line voltages is/are?
A. One
B. Two
C. Three
D. Four
Right Answer: B. Two
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?
The dielectric strength of air gap is?
A. 2.11kV/cm
B. 21.1kV/m
C. 21.1kV/cm
D. 2.11kV/m
Right Answer: C. 21.1kV/cm
Total 0 Votes:
0
0
Tell us how can we improve this Mcqs?
The wrong statement among the following is?
A. A fuse can be fitted in an outlet socket
B. A fuse should not get overheated
C. The current rating of fuse should not exceed the rating of the smallest cable protected
D. Fuse having rating less than 3 A can be used in radio
Right Answer: A. A fuse can be fitted in an outlet socket
Total 1 Votes:
0
1
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?
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?
AC series motors are most suitable for?
A. Urban services
B. Sub-urban services
C. Main line services
D. All of these
Right Answer: C. Main line services
Total 0 Votes:
0
0
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.
