MCQs on Fundamental of Electrical & Electronics Engineering / 2nd Sem

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Unit- 1 : Electric and Magnetic Circuits

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2nd Semester

FEEE Unit-1.1 : Concept of Passive Components: Resistors, Capacitors, Inductors

Fundamentals of Electrical & Electronics Engineering

Diploma in Engineering & Technology

2nd Semester - Common to all branch

1 / 20

Category: Basic Electricity

Which, among the following is a unit for resistivity?

2 / 20

Category: Basic Electricity

In a pure inductive circuit current is

3 / 20

Category: Basic Electricity

A wire having an area of cross section = 10sqm and another wire having an area of cross section= 15sqm, have the same length and are made up of the same material. Which wire has more resistance?

4 / 20

Category: Basic Electricity

Resistance of any circuit depends on –

5 / 20

Category: Basic Electricity

The insulating medium between the two plates of capacitor is known as __________

6 / 20

Category: Basic Electricity

The formula used to find the capacitance C is __________

7 / 20

Category: Basic Electricity

Unit of resistivity is

8 / 20

Category: Basic Electricity

Three lamps are connected in parallel across the voltage source. What happen if one lamp will burn out?

9 / 20

Category: Basic Electricity

A wire has the same resistance as the one given in the figure. Calculate its resistivity if the length of the wire is 10m and its area of cross section is 2m.

10 / 20

Category: Basic Electricity

Which of the following statements are true with regard to resistivity?

11 / 20

Category: Basic Electricity

A choke coil is a coil having-

12 / 20

Category: Basic Electricity

Calculate the value of energy stored in an inductor if the value of inductance is 10H and 2A of current flows through it.-

13 / 20

Category: Basic Electricity

What is the relation between resistance R and resistivity ρ of a wire ?

14 / 20

Category: Basic Electricity

Materials which easily allow the passage of electric current are known as ______

15 / 20

Category: Basic Electricity

A wire of length 2m and another wire of length 5m are made up of the same material and have the same area of cross section, which wire has higher resistance?

16 / 20

Category: Basic Electricity

The reciprocal of resistivity is________

17 / 20

Category: Basic Electricity

If a capacitor is connected with DC supply, it will act as –

18 / 20

Category: Basic Electricity

If a capacitor of capacitance 9.2F has a voltage of 22.5V across it. Calculate the energy of the capacitor.

19 / 20

Category: Basic Electricity

If the voltage across a capacitor is constant, then current passing through it is ________

20 / 20

Category: Basic Electricity

Color code for 1 ohm +-10% resistor is

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2nd Semester

FEEE Unit-1.2 : Different types of signal waveforms: DC/AC, voltage/current, periodic/non-periodic

Fundamentals of Electrical & Electronics Engineering

Diploma in Engineering & Technology

2nd Semester - Common to all branch

1 / 20

Category: AC Fundamental

The length of a phasor represents the amplitude

2 / 20

Category: Basic Electricity

A saw-tooth wave has a period of 10 ms. Its frequency is

3 / 20

Category: Basic Electricity

When a sine wave has a frequency of 100 Hz in 12 s it goes through

4 / 20

Category: Basic Electricity

Periodic is characterized by a repetition at fixed time intervals

5 / 20

Category: Basic Electricity

Amplitude is the maximum value of a voltage or current

6 / 20

Category: Basic Electricity

If the rms current through a 4.7 kΩ resistor is 4 mA, the peak voltage drop across the resistor is

7 / 20

Category: Basic Electricity

If the peak of a sine wave is 13 V, the peak-to-peak value is

8 / 20

Category: Basic Electricity

The instantaneous value is the voltage or current value of a waveform at its peak

9 / 20

Category: Basic Electricity

Average value of a sine wave is 0.707 times the peak value

10 / 20

Category: Basic Electricity

If the rms voltage drop across a 15 kΩ resistor is 16 V, the peak current through the resistor is

11 / 20

Category: Basic Electricity

A phasor represents

12 / 20

Category: Basic Electricity

A 1 kHz signal has a period of 1 ms

13 / 20

Category: Basic Electricity

A pulse waveform has a high time of 8 ms and a pulse width of 32 ms. The duty cycle is

14 / 20

Category: Basic Electricity

The unit of frequency is the hertz

15 / 20

Category: Basic Electricity

A sinusoidal current has an rms value of 14 mA. The peak-to-peak value is

16 / 20

Category: Basic Electricity

A signal with a 400 μs period has a frequency of

17 / 20

Category: Basic Electricity

The average half-cycle value of a sine wave with a 40 V peak is

18 / 20

Category: Basic Electricity

A 20 kHz pulse waveform consists of pulses that are 15 μs wide. The duty cycle is 

19 / 20

Category: Basic Electricity

How many degrees are there in π/3 rad?

20 / 20

Category: Basic Electricity

One sine wave has a positive-going zero crossing at 15° and another sine wave has a positive-going zero crossing at 55°. The phase angle between the two waveforms is

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2nd Semester

FEEE Unit-1.3 : Voltage/current sources: Ideal/non-ideal ,independent/dependent , source transformation

Fundamentals of Electrical & Electronics Engineering

Diploma in Engineering & Technology

2nd Semester - Common to all branch

1 / 16

Category: Basic Electricity

In a parallel circuit, with a number of resistors, the voltage across each resistor is ________

2 / 16

Category: Basic Electricity

If there are two bulbs connected in series and one blows out, what happens to the other bulb?

3 / 16

Category: Basic Electricity

In a series circuit, which of the parameters remain constant across all circuit elements such as resistor, capacitor and inductor etc?

4 / 16

Category: Basic Electricity

In a _________ circuit, the total resistance is greater than the largest resistance in the circuit.

5 / 16

Category: Basic Electricity

The current in each branch of a parallel circuit is proportional to _________

6 / 16

Category: Basic Electricity

The energy per unit charge is

7 / 16

Category: Basic Electricity

What is the voltage measured across a series short?
a) b)  c)  d) 

8 / 16

Category: Basic Electricity

In a ____________ circuit, the total resistance is smaller than the smallest resistance in the circuit

9 / 16

Category: Basic Electricity

What happens to the current in the series circuit if the resistance is doubled?

10 / 16

Category: Basic Electricity

Many resistors connected in series will?

11 / 16

Category: Basic Electricity

Ideal voltage source has-

12 / 16

Category: Basic Electricity

Active circuit have -

13 / 16

Category: Basic Electricity

Ideal voltage source has-

14 / 16

Category: Basic Electricity

Which is the most cost efficient connection?

15 / 16

Category: Basic Electricity

If two bulbs are connected in parallel and one bulb blows out, what happens to the other bulb?

16 / 16

Category: Basic Electricity

Batteries are generally connected in______

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2nd Semester

FEEE Unit-1.4 : Simple problems on source transformation

Fundamentals of Electrical & Electronics Engineering

Diploma in Engineering & Technology

2nd Semester - Common to all branch

1 / 16

Category: Basic Electricity

Calculate the total resistance between the points A and B.

2 / 16

Category: Basic Electricity

Calculate the equivalent resistance between A and B

3 / 16

Category: Basic Electricity

Calculate the current across the 20 ohm resistor

4 / 16

Category: Basic Electricity

The voltage across the short is?

5 / 16

Category: Basic Electricity

The total resistance between A and B are?

6 / 16

Category: Basic Electricity

Calculate the total current in the circuit

7 / 16

Category: Basic Electricity

Find the voltage across the 6 ohm resistor

 

8 / 16

Category: Basic Electricity

The currents in the three branches of a parallel circuit are 3 A, 4 A and 5 A. What is the current leaving it?

9 / 16

Category: Basic Electricity

If the current through x ohm resistance in the circuit is 5A, find the value of x

10 / 16

Category: Basic Electricity

The voltage across the open circuit is?

11 / 16

Category: Basic Electricity

Find the current in the circuit.

 

12 / 16

Category: Basic Electricity

Calculate the equivalent resistance between A and B

13 / 16

Category: Basic Electricity

Voltage across the 60 ohm resistor is______

 

14 / 16

Category: Basic Electricity

What is the value of x if the current in the circuit is 5 A?

 

15 / 16

Category: Basic Electricity

Calculate the resistance between A and B

16 / 16

Category: Basic Electricity

Calculate the equivalent resistance between A and B

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Unit- 2 : Electric and Magnetic Circuits

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2nd Semester

FEEE Unit-2.1 : Concept of EMF, Current, Potential Difference, Power and Energy

Fundamentals of Electrical & Electronics Engineering

Diploma in Engineering & Technology

2nd Semester - Common for all branches

1 / 13

Category: Basic Electricity

Current & Potential Difference both can be measured using –

2 / 13

Category: Basic Electricity

Insulating material can –

3 / 13

Category: Basic Electricity

S.I unit of Power is –

4 / 13

Category: Basic Electricity

Three lamps are connected in parallel across the voltage source. What happen if one lamp will burn out? –

5 / 13

Category: Basic Electricity

Electric pressure is also called –

6 / 13

Category: Basic Electricity

KWh is the unit of -    

7 / 13

Category: Basic Electricity

The flow of electron in solids is due to –

8 / 13

Category: Basic Electricity

S.I unit of conductance is –

9 / 13

Category: Basic Electricity

1 coulomb charge equals the charge of –

10 / 13

Category: Basic Electricity

Instantaneous power in inductor is proportional to the –

11 / 13

Category: Basic Electricity

In case of D.C –

12 / 13

Category: Magnetic Circuit

Induced potential difference due to motion of magnet with respect to the coil is known as -

13 / 13

Category: AC Fundamental

Average power taken by a pure capacitor is –

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2nd Semester

FEEE Unit-2.2 : M.M.F, magnetic force, permeability, hysteresis loop, reluctance, leakage factor, BH curve and hysteresis loss, eddy current loss. Analogy between electric and magnetic circuits

Fundamentals of Electrical & Electronics Engineering

Diploma in Engineering & Technology

2nd Semester - Common to all branch

1 / 20

Category: Magnetic Circuit

M.M.F in a magnetic circuit is corresponding to ……… in an electric circuit-

2 / 20

Category: Magnetic Circuit

The unit of magnetic flux is –

3 / 20

Category: Magnetic Circuit

In a magnetic material hysteresis loss takes place primarily due to –

4 / 20

Category: Magnetic Circuit

Magnetic field strength is

5 / 20

Category: Magnetic Circuit

Electric field & magnetic field are interrelated and are known as –

6 / 20

Category: Magnetic Circuit

In a electric circuit MMF is similar to

7 / 20

Category: Magnetic Circuit

Magnetic field has -

8 / 20

Category: Magnetic Circuit

Strength of the electromagnet can be increased by increasing –

9 / 20

Category: Magnetic Circuit

Paramagnetic materials are –

10 / 20

Category: Magnetic Circuit

Unit of magnetic flux density is in S.I.

11 / 20

Category: Magnetic Circuit

The reciprocal of permeability is –

12 / 20

Category: Magnetic Circuit

Magnetic field is proportional to the –

13 / 20

Category: Magnetic Circuit

Magnetic circuit is a closed path followed by –

14 / 20

Category: Magnetic Circuit

S.I unit of Reluctance-

15 / 20

Category: Magnetic Circuit

A coil of many circular turns of wire wrapped in the shape of a cylinder is known as -

16 / 20

Category: Magnetic Circuit

Magnetic lines of forces –

17 / 20

Category: Magnetic Circuit

Which of the following is unit less?

18 / 20

Category: Magnetic Circuit

Hysteresis loss least depends on –

19 / 20

Category: AC Fundamental

Absolute permittivity of dielectric medium is represented as –

20 / 20

Category: Basic Electricity

To obtain a high value of capacitance, the permittivity of dielectric medium should be –

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2nd Semester

FEEE Unit-2.3 : Electromagnetic induction: Faraday’s laws , Lenz’s law

Fundamentals of Electrical & Electronics Engineering

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2nd Semester - Common to all branch

1 / 4

Category: Magnetic Circuit

If current in a conductor increases then according to Lenz's law self-induced voltage will –

2 / 4

Category: Magnetic Circuit

An open coil has –

3 / 4

Category: Magnetic Circuit

The principle of electromagnetic induction was propounded by

4 / 4

Category: Magnetic Circuit

The induced E.M.F. and current always oppose the cause of producing them is according to which law?

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2nd Semester

FEEE Unit-2.4 : Dynamically induced emf; Statically induced emf; Principle of self and mutual inductance

Fundamentals of Electrical & Electronics Engineering

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1 / 6

Category: Magnetic Circuit

Statically induced E.M.F’s magnitude depends on the –

2 / 6

Category: Magnetic Circuit

Which is the property of a coil by which a counter E.M.F is induced when the current through the coil changes?

3 / 6

Category: AC Machines & Transformer

In which device is the principle of statically induced E.M.F used?

4 / 6

Category: DC Motor

Principle of dynamically induced E.M.F is used in a –

5 / 6

Category: Basic Electricity

Electrolysis is possible with –

6 / 6

Category: AC Fundamental

Sparking may occurs when a load is switched off due to the presence of –

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2nd Semester

FEEE Unit-2.5 : Energy stored in magnetic circuit

Fundamentals of Electrical & Electronics Engineering

Diploma in Engineering & Technology

2nd Semester - Common to all branch

1 / 12

Category: Magnetic Circuit

Higher the self-inductance of a coil –

2 / 12

Category: Magnetic Circuit

Energy stored in a magnetic field is given by –

3 / 12

Category: Magnetic Circuit

Calculate the emf induced in an inductor if the inductance is 10H and the current is 2 A in 4 s.

4 / 12

Category: Magnetic Circuit

What is the power in the magnetic field if the current in a coil has a constant inductance of L henrys grows at a uniform rate?

5 / 12

Category: Magnetic Circuit

Calculate the value of energy stored in an inductor if the value of inductance is 10H and 2 A of current flows through it. – 

6 / 12

Category: Magnetic Circuit

If the current in a coil having a constant inductance of L henrys grows at a uniform rate, what is the value of the average current?

7 / 12

Category: Magnetic Circuit

If both the number of turns and the core length of an inductive coil are doubled, then its self-inductance will be –

8 / 12

Category: Magnetic Circuit

Calculate the value of stored energy in an inductor if the value of inductance is 20 H and 4 A of current flows through it.

9 / 12

Category: Magnetic Circuit

If the current in a coil having a constant inductance of L henrys grows at a uniform rate, what is the value of the average current?

10 / 12

Category: Magnetic Circuit

In an iron cored coil the iron core is removed so that the coil becomes an air cored coil. The inductance of the coil will –

 

11 / 12

Category: AC Fundamental

In a capacitor, the electrical energy is stored in –

12 / 12

Category: AC Fundamental

The energy stored by a capacitor is given by –

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2nd Semester

FEEE Unit-2.6 : Flemming’s Left Hand Rule and Right Hand Rule

Fundamentals of Electrical & Electronics Engineering

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2nd Semester - Common to all branch

1 / 5

Category: Magnetic Circuit

A magnetic field like this is called –

2 / 5

Category: Magnetic Circuit

When a permanent magnet is cut half what will be the result?

3 / 5

Category: Magnetic Circuit

Which rule do we use to predict the direction of movement of a current carrying wire in a magnetic field?

4 / 5

Category: DC Motor

The direction of rotation of a dc motor is found out by

5 / 5

Category: DC Motor

The direction of rotation of a dc generator is found out by

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2nd Semester

FEEE Unit-2.7 : Simple problems on Electric & Magnetic Circuit

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1 / 2

Category: Basic Electricity

If energy required to heat up a heater coil is 4 KWh and the energy loss is 20%, then what is the energy input?

2 / 2

Category: Basic Electricity

A bulb consumes 100 W when supply voltage is 200 V. Then find the energy consumed in 30 minutes.

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Unit- 3 : AC Circuits

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2nd Semester

FEEE Unit- 3.1 : Concept of Angular speed, Cycle, Frequency, Periodic time, Amplitude, RMS value, Average value, Form Factor, Peak Factor, impedance, phase and phase difference.

Fundamental of Electrical & Electronics Engineering

Diploma in Engineering & Technology

2nd Semester - Common to all branches

1 / 20

Category: AC Fundamental

In a circuit containing R, L and C, power loss can take place in –

2 / 20

Category: AC Fundamental

The form factor for a sinusoidal a.c. voltage is – 

3 / 20

Category: AC Fundamental

Real part and imaginary part of admittance are respectively –

4 / 20

Category: AC Fundamental

Capacitive Susceptance is a measure of –

5 / 20

Category: AC Fundamental

Average value can be defined based on which of the following? –

6 / 20

Category: AC Fundamental

From heating point of view ID.C. is equal to –

7 / 20

Category: AC Fundamental

RMS value can be defined based on which of the following? –

8 / 20

Category: AC Fundamental

A heater is rated as 230 V, 10 kW. The value 230 V refers to –

9 / 20

Category: AC Fundamental

An alternating voltage is given by, V = 10 sin 2πt. The frequency of the AC signal is –

10 / 20

Category: AC Fundamental

A sine wave has a frequency of 50 Hz. Its angular frequency is _______radian/second.

11 / 20

Category: AC Fundamental

The square waveform of current has following relation between R.M.S. value and average value –

12 / 20

Category: AC Fundamental

Form factor of square wave is-

13 / 20

Category: AC Fundamental

An Alternating Current has a periodic time of 0.02 sec, then the frequency will be –

14 / 20

Category: AC Fundamental

The most important advantage of using electrical energy in the form of a AC is –

15 / 20

Category: AC Fundamental

RMS value can be defined based on which of the following? –

16 / 20

Category: AC Fundamental

The frequency of an alternating current is –

17 / 20

Category: AC Fundamental

Form factor of half wave rectified ac is-

18 / 20

Category: AC Fundamental

The RMS value of a sine wave is 100 A. Its peak value is –

19 / 20

Category: AC Fundamental

The peak value of a sine wave is 200 V. Its average value is –

20 / 20

Category: AC Fundamental

Two waves of the same frequency have opposite phase when the phase angle between them is –

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2nd Semester

FEEE Unit-3.2 : Representation of sinusoidal quantities in (i) exponential form (ii) complex form and (iii) polar form

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1 / 4

Category: Basic Electricity

What is the RMS value of the current if the maximum value of sine wave current is 100 A?

2 / 4

Category: AC Fundamental

The frequency of an AC voltage,e= 100 cos 314t , will be –

3 / 4

Category: AC Fundamental

The frequency of an AC voltage in India, is–

4 / 4

Category: AC Fundamental

The equation for instantaneous value of alternating current is, then time period will be –

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2nd Semester

FEEE Unit-3.3 : Expressions of voltage and current through pure resistance, inductance and capacitance with sinusoidal excitation and phasor representation

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1 / 5

Category: Basic Electricity

For a sinusoidal AC voltage, amplitude factor is –

2 / 5

Category: AC Fundamental

In series R-L circuit power factor can be defined as –

3 / 5

Category: AC Fundamental

In a series R-C circuit, the applied voltage –

4 / 5

Category: AC Fundamental

In a R-L-C circuit, power loss takes place is – 

5 / 5

Category: AC Fundamental

In an AC circuit (Sine wave) with R and L in series –

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2nd Semester

FEEE Unit-3.4 : Study of simple R-L, R-C, R-L-C series and parallel circuits with sinusoidal excitation and phasor representation

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1 / 5

Category: AC Fundamental

In a R-L-C circuit, power loss takes place is –

2 / 5

Category: AC Fundamental

In series R-L circuit power factor can be defined as –

3 / 5

Category: AC Fundamental

In an AC circuit (Sine wave) with R and L in series –

4 / 5

Category: AC Fundamental

In a series R-C circuit, the applied voltage –

5 / 5

Category: AC Fundamental

For a sinusoidal AC voltage, amplitude factor is –

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2nd Semester

FEEE Unit-3.5 : Concept of impedance, impedance triangle, power factor, active, reactive and apparent power, power triangle

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1 / 20

Category: AC Fundamental

The power factor of an AC circuit lies between –

2 / 20

Category: AC Fundamental

The power factor of practical inductor is

3 / 20

Category: AC Fundamental

If the inductive reactance of a coil is 6 ohm and internal resistance is 8 ohm, then the impedance will be –

4 / 20

Category: AC Fundamental

From the following when capacitive reactance will be more?

5 / 20

Category: AC Fundamental

In an AC circuit a low value of KVAR compared with KW indicates –

6 / 20

Category: AC Fundamental

Unit of impedance is

7 / 20

Category: AC Fundamental

The power factor of an ordinary electric bulb is

8 / 20

Category: AC Fundamental

Capacitors for power factor correction are rated in -

9 / 20

Category: AC Fundamental

In series R-L circuit power factor can be defined as - 

10 / 20

Category: AC Fundamental

An electric incandescent lamp has the power factor of –

11 / 20

Category: AC Fundamental

The alternative name/names for active power is/are –

12 / 20

Category: Circuit Theory & Network

The component of current which is in quadrature with supply voltage, is –

13 / 20

Category: Circuit Theory & Network

Which of the following will not be affected due to change in R?

14 / 20

Category: Circuit Theory & Network

In a R-L-C series circuit, if the inductive reactance is greater than the capacitive reactance, then the power factor will be –

15 / 20

Category: Circuit Theory & Network

In a R-L-C series circuit, if the capacitive reactance is greater than the inductive reactance, then the power factor will be –

16 / 20

Category: Circuit Theory & Network

In any AC circuit always –

17 / 20

Category: Circuit Theory & Network

For a pure inductive circuit, the average demand of power from the source will be –

18 / 20

Category: Circuit Theory & Network

A parallel AC circuit in resonance will –

19 / 20

Category: Circuit Theory & Network

What will be the Q-factor of a circuit, if power factor is 0.9?

20 / 20

Category: Basic Electricity

When an alternating current passes through an Ohmic resistance the electrical power converted into heat is –

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2nd Semester

FEEE Unit-3.6 : Voltage and Current relationship in Star and Delta connections

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1 / 2

Category: AC Machines & Transformer

With the star delta starter the voltage across the motor winding at starting is – 

2 / 2

Category: Basic Electricity

Three nos 6-ohm resistances are connected in delta. Value of resistances if connected in star – 

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Unit- 4 : Transformers and Machines

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2nd Semester

FEEE Unit- 4.1 : Transformer and Machines

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2nd Semester

FEEE Unit-4.2 : General construction and principle of different type of transformers

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2nd Semester

FEEE Unit-4.3 : EMF equation and transformation ratio of transformers

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2nd Semester

FEEE Unit-4.4 : Auto-transformers

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2nd Semester

FEEE Unit-4.5 : Construction and working principle of motors

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FEEE Unit-4.6 : Types of motors and applications

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2nd Semester

FEEE Unit-4.7 : Simple problems on transformers and electrical machines

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