Online Electrical Engineering Test - Electrical Engineering Test 5

Instruction:

This is a FREE online test. Beware of scammers who ask for money to attend this test.
Total number of questions: 20.
Time allotted: 30 minutes.
Each question carries 1 mark; there are no negative marks.
DO NOT refresh the page.
All the best!

How much resistance is required to limit the current from a 12 V battery to 3.6 mA?

3.3 k

33 k

2.2 k

22 k

[#]

The ampere is the unit of resistance.

True

False

[#]

When a fourth resistor is connected in series with three resistors, the total resistance

increases by one-fourth

increases

decreases

remains the same

[#]

A 120

load is connected across an ideal voltage source with V_S = 12 V. The voltage across the load

is 0 V

is 12 V

is 120 V

cannot be determined

[#]

What is the reluctance of the circuit in problem 9 if the flux is 275

Wb?

0.0066 At/Wb

0.066 At/Wb

8,727 At/Wb

872 At/Wb

[#]

Electromagnetic induction is the force that produces a magnetic field.

True

False

[#]

Reluctance in a magnetic circuit is analogous to current in an electrical circuit.

True

False

[#]

Hysteresis is the number of lines of force per unit area in a magnetic field.

True

False

[#]

If the rms current through a 4.7 k

resistor is 4 mA, the peak voltage drop across the resistor is

4 V

18.8 V

26.6 V

2.66 V

[#]

10.

The mutual inductance when k = 0.65, L₁ = 2

H, and L₂ = 5

H is

2 mH

[#]

11.

If the voltage is stepped up, the current is stepped down, and vice versa.

True

False

[#]

12.

The voltages in Problem 4 are measured at a certain frequency. To make the capacitor voltage greater than the resistor voltage, the frequency

must be increased

must be decreased

is held constant

has no effect

[#]

13.

A capacitor with 150

of capacitive reactance is across an ac source. The impedance, expressed in polar form, is

Z = 150

90°

Z = 150

–90°

Z = 150

180°

[#]

14.

The power factor (PF) indicates how much of the apparent power is true power.

True

False

[#]

15.

The bandwidth of a resonant filter is determined by the quality factor (Q) of the circuit and the resonant frequency.

True

False

[#]

16.

The Thevenin equivalent voltage is

equal to the source voltage

the same as the load voltage

the open circuit voltage

none of the above

[#]

17.

Referring to the given circuit, L

must be in parallel with R_L

must be placed in parallel with V_S

must have a reactance equal to X_C

has no effect on the result

[#]

18.

Norton's theorem provides a method for the reduction of any ac circuit to an equivalent form consisting of an equivalent voltage source in series with an equivalent impedance.

True

False

[#]

19.

The output of an RC integrator is taken across the

diode

capacitor

resistor

source

[#]

20.

Polyphase generators produce simultaneous multiple sinusoidal voltages that are separated by

certain constant phase angles

certain constant frequencies

certain constant voltages

certain constant currents

[#]

Quick links

Quantitative Aptitude

Verbal (English)

Reasoning

Programming

Interview

Placement Papers

Online Electrical Engineering Test - Electrical Engineering Test 5

Marks : 2/20

Test Review : View answers and explanation for this test.

Current Affairs

Interview Questions

Group Discussions