Practice 1000 Basic Electrical Engineering Multiple Choice Questions with Answers Quiz-1

Q.1.

Which of the following type of circuits in electrical engineering cannot be analyzed using Ohm’s law?

a) Unilateral
b) Bilateral
c) Linear
d) Conductors

Q.2.

What does positive power in an electrical element indicate?

a) Element is absorbing power
b) Element is supplying power
c) Element may absorb or supply power
d) Element is neither absorbing nor supplying power

Q.3.

How does induce emf in DC motor react to supply voltage?

a) It will aid the supply voltage
b) It will be double the supply voltage
c) It will oppose the supply voltage
d) It will be half of the supply voltage

Q.4.

Which of the following elements of electrical engineering cannot be analyzed using Ohm’s law?

a) Capacitors
b) Inductors
c) Transistors
d) Resistance

Q.5.

What is constant for a charged spherical shell according to basic electrical energy?

a) Electrical potential outside the spherical shell
b) Electrical potential inside the spherical shell
c) Electrical field outside the spherical shell
d) Electrical field inside the spherical shell

Q.6.

Where does electro-static shielding occur in a charged spherical shell?

a) When electrical potential outside spherical shell is zero
b) When electrical potential inside the spherical shell is zero
c) When electrical field outside the spherical shell
d) Electrical field inside the spherical shell

Q.7.

Which of the following is a correct representation of peak value in an AC Circuit?

a) RMS value/Peak factor
b) RMS value*Form factor
c) RMS value/Form factor
d) RMS value*Peak factor

Q.8.

Which of the following according to fundaments of electrical energy is correct about alternating current?

a) Frequency is zero
b) Magnitude changes with time
c) Can be transported to larger distances with less loss in power
d) Flows in both directions

Q.9.

How many cycles will an AC signal make in 2 seconds if its frequency isHz?

a) 50
b) 100
c) 150
d) 200

Q.10.

What will be the direction of the drift velocity of electrons change with respect to the electric field?

a) same as that of electric field
b) opposite to that of electric field
c) perpendicular to that of the electric field in a positive direction
d) perpendicular to that of the electric field in a negative direction

Q.11.

What will be the current density of metal if a current ofis passed through a cross-sectional area of 0.5m2?

a) 7.5 A/m2
b) 15 A/m2
c) 60 A/m2
d) 120 A/m2

Q.12.

Which of the following is correct about the power consumed by R1 and R2 connected in series if the value of R1 is greater than R2?

a) R1 will consume more power
b) R2 will consume more power
c) R1 and R2 will consume the same power
d) The relationship between the power consumed cannot be established

Explanation

Q.13.

What is zero for a charged spherical shell?

a) Electrical potential outside the spherical shell
b) Electrical potential inside the spherical shell
c) Electrical field outside the spherical shell
d) Electrical field inside the spherical shell

Q.14.

What kind of quantity is an Electric potential?

a) Vector quantity
b) Tensor quantity
c) Scalar quantity
d) Dimensionless quantity

Explanation

Q.15.

What do crowded lines of force indicate?

a) Strong electric field
b) Weak electric field
c) Strong electric potential
d) Weak electric potential

Q.16.

What is the direction of the electric field at a point?

a) Along the line perpendicular to the electric field
b) Along the line tangent to the electric field
c) Electric field has no direction
d) Electric field has a random direction

Q.17.

What is the magnitude of mutually induced emf, E2 in a transformer?

a) directly proportional to rate of change of flux and number of secondary turns
b) inversely proportional to rate of change of flux and number of secondary turns
c) proportional to rate of change of flux and inversely proportional to number of secondary turns
d) inversely proportional to the rate of change of flux and proportional to number of secondary turns

Q.18.

Which of the following will happen in a transformer when the number of secondary turns is less than the number of primary turns?

a) The voltage gets stepped up
c) The power gets stepped up
d) The power gets stepped down

Q.19.

What is the number of primary turns in a 200/V transformer if the emf per turn is 10V?

a) 5
b) 10
c) 20
d) 40

Q.20.

Which of the following is a correct representation of average value in an AC Circuit?

a) RMS value/Form factor
b) RMS value*Form factor
c) RMS value/Peak factor
d) RMS value*Peak factor

Support mcqgeeks.com by disabling your adblocker.