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

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

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Category: Basic Electricity

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

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Category: Basic Electricity

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

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Category: Basic Electricity

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

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Category: Basic Electricity

5. The units for inductance is _________ and capacitance is ___________

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Category: Basic Electricity

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

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Category: Basic Electricity

7. A choke coil is a coil having-

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Category: Basic Electricity

8. Frequency of Direct Current is

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Category: Basic Electricity

9. Unit of resistivity is

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Category: Basic Electricity

10. An Inductor works as a ___________ circuit for DC supply.

11 / 20

Category: Basic Electricity

11. Which of the following statements are true with regard to resistance?

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Category: Basic Electricity

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

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Category: Basic Electricity

13. Resistance of any circuit depends on –

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Category: Basic Electricity

14. 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?

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Category: Basic Electricity

15. Color code for 1 ohm +-10% resistor is

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Category: Basic Electricity

16. In a pure inductive circuit current is

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Category: Basic Electricity

17. If the length of a wire is doubled and diameter is halved, then the resistance will become _________ of the previous.

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Category: Basic Electricity

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

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Category: Basic Electricity

19. 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?

20 / 20

Category: Basic Electricity

20. The Inductor doesn’t allow sudden changes in

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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: Basic Electricity

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

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Category: Basic Electricity

2. Periodic is characterized by a repetition at fixed time intervals

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Category: Basic Electricity

3. A phasor represents

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Category: Basic Electricity

4. The unit of frequency is the hertz

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Category: Basic Electricity

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

6 / 20

Category: Basic Electricity

6. 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

7. The duty cycle of a pulse waveform with a pulse width of 10 µs and a period of 100 µs is 25%.

8 / 20

Category: Basic Electricity

8. If a sine wave goes through 10 cycles in 20 μs, the period is

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Category: Basic Electricity

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

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Category: Basic Electricity

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

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Category: Basic Electricity

11. A 1 kHz signal has a period of 1 ms

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Category: Basic Electricity

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

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Category: Basic Electricity

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

14 / 20

Category: Basic Electricity

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

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Category: Basic Electricity

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

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Category: Basic Electricity

16. 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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Category: Basic Electricity

17. Amplitude is the maximum value of a voltage or current

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Category: Basic Electricity

18. A signal with a 400 μs period has a frequency of

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Category: Basic Electricity

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

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Category: AC Fundamental

20. The length of a phasor represents the amplitude

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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

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Category: Basic Electricity

1. Ideal voltage source has-

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Category: Basic Electricity

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

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Category: Basic Electricity

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

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Category: Basic Electricity

4. Ideal voltage source has-

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Category: Basic Electricity

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

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Category: Basic Electricity

6. The energy per unit charge is

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Category: Basic Electricity

7. Active circuit have -

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Category: Basic Electricity

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

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Category: Basic Electricity

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

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Category: Basic Electricity

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

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Category: Basic Electricity

11. Batteries are generally connected in______

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Category: Basic Electricity

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

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Category: Basic Electricity

13. Many resistors connected in series will?

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Category: Basic Electricity

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

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Category: Basic Electricity

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

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Category: Basic Electricity

16. Which is the most cost efficient connection?

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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

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

 

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Category: Basic Electricity

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

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Category: Basic Electricity

3. Calculate the current across the 20 ohm resistor

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Category: Basic Electricity

4. The total resistance between A and B are?

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Category: Basic Electricity

5. The voltage across the short is?

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Category: Basic Electricity

6. Find the voltage across the 6 ohm resistor

 

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Category: Basic Electricity

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

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Category: Basic Electricity

8. Calculate the equivalent resistance between A and B

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Category: Basic Electricity

9. The voltage across the open circuit is?

10 / 16

Category: Basic Electricity

10. Calculate the resistance between A and B

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Category: Basic Electricity

11. Calculate the equivalent resistance between A and B

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Category: Basic Electricity

12. Find the current in the circuit.

 

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Category: Basic Electricity

13. Calculate the total current in the circuit

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Category: Basic Electricity

14. Voltage across the 60 ohm resistor is______

 

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Category: Basic Electricity

15. Calculate the equivalent resistance between A and B

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Category: Basic Electricity

16. Calculate the total resistance between the points 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

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Category: Magnetic Circuit

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

2 / 13

Category: Basic Electricity

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

3 / 13

Category: Basic Electricity

3. S.I unit of Power is –

4 / 13

Category: Basic Electricity

4. Insulating material can –

5 / 13

Category: Basic Electricity

5. Current & Potential Difference both can be measured using –

6 / 13

Category: Basic Electricity

6. Electric pressure is also called –

7 / 13

Category: Basic Electricity

7. The flow of electron in solids is due to –

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Category: Basic Electricity

8. S.I unit of conductance is –

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Category: Basic Electricity

9. KWh is the unit of -    

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Category: Basic Electricity

10. Instantaneous power in inductor is proportional to the –

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Category: Basic Electricity

11. 1 coulomb charge equals the charge of –

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Category: Basic Electricity

12. In case of D.C –

13 / 13

Category: AC Fundamental

13. 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: Basic Electricity

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

2 / 20

Category: Magnetic Circuit

2. Hysteresis loss least depends on –

3 / 20

Category: Magnetic Circuit

3. Magnetic field is proportional to the –

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Category: Magnetic Circuit

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

5 / 20

Category: Magnetic Circuit

5. In a electric circuit MMF is similar to

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Category: Magnetic Circuit

6. Magnetic field has -

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Category: Magnetic Circuit

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

8 / 20

Category: Magnetic Circuit

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

9 / 20

Category: Magnetic Circuit

9. Magnetic field strength is

10 / 20

Category: Magnetic Circuit

10. The reciprocal of permeability is –

11 / 20

Category: Magnetic Circuit

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

12 / 20

Category: Magnetic Circuit

12. S.I unit of Reluctance-

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Category: Magnetic Circuit

13. Paramagnetic materials are –

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Category: Magnetic Circuit

14. Strength of the electromagnet can be increased by increasing –

15 / 20

Category: Magnetic Circuit

15. Unit of magnetic flux density is in S.I.

16 / 20

Category: Magnetic Circuit

16. Magnetic lines of forces –

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Category: Magnetic Circuit

17. Magnetic circuit is a closed path followed by –

18 / 20

Category: Magnetic Circuit

18. Which of the following is unit less?

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Category: Magnetic Circuit

19. The unit of magnetic flux is –

20 / 20

Category: AC Fundamental

20. Absolute permittivity of dielectric medium is represented as –

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2nd Semester

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

Fundamentals of Electrical & Electronics Engineering

Diploma in Engineering & Technology

2nd Semester - Common to all branch

1 / 4

Category: Magnetic Circuit

1. The principle of electromagnetic induction was propounded by

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Category: Magnetic Circuit

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

3 / 4

Category: Magnetic Circuit

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

4 / 4

Category: Magnetic Circuit

4. An open coil has –

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5
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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

Diploma in Engineering & Technology

2nd Semester - Common to all branch

1 / 6

Category: AC Machines & Transformer

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

2 / 6

Category: DC Machines

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

3 / 6

Category: AC Fundamental

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

4 / 6

Category: Basic Electricity

4. Electrolysis is possible with –

5 / 6

Category: Magnetic Circuit

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

6 / 6

Category: Magnetic Circuit

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

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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: AC Fundamental

1. In a capacitor, the electrical energy is stored in –

2 / 12

Category: AC Fundamental

2. The energy stored by a capacitor is given by –

3 / 12

Category: Magnetic Circuit

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

4 / 12

Category: Magnetic Circuit

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

5 / 12

Category: Magnetic Circuit

5. 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?

6 / 12

Category: Magnetic Circuit

6. 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

7. 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.

8 / 12

Category: Magnetic Circuit

8. Higher the self-inductance of a coil –

9 / 12

Category: Magnetic Circuit

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

10 / 12

Category: Magnetic Circuit

10. 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: Magnetic Circuit

11. 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?

12 / 12

Category: Magnetic Circuit

12. Energy stored in a magnetic field 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

Diploma in Engineering & Technology

2nd Semester - Common to all branch

1 / 5

Category: DC Machines

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

2 / 5

Category: DC Machines

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

3 / 5

Category: Magnetic Circuit

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

4 / 5

Category: Magnetic Circuit

4. A magnetic field like this is called –

5 / 5

Category: Magnetic Circuit

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

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2nd Semester

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

Fundamentals of Electrical & Electronics Engineering

Diploma in Engineering & Technology

2nd Semester - Common to all branch

1 / 2

Category: Basic Electricity

1. 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

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

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