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Online Tests of Electronics

Online Electronic Engineering Quiz

Engineers are the back bone of Pak Army because in any war situation, Engineers help Pak Army to keep on advancing to the difficult areas.

In Engineering branch, soldiers are also given training regarding electronics equipment for maintenance and smooth functioning of the defence.

If you are interested to join Pak Army, Navy or PAF as an Engineer in Engineering branch then you are at the right place for preparation of all intelligence and academic tests. Here, all types of tests pattern and procedure for online applying is given.

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Past papers of Electronic Engineers are given here to pass the initial tests of Pak Army, Nay and PAF commissioned branches Tests. Learn here about Intelligence Tests, Academic Tests & Interview questions with the whole procedure here at this page below.

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Check: Past Papers of Electronics MCQs for Initial Tests

Online Tests of Electronics

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Electrical Engineering Quiz

If a high degree of selectivity is desired, then double-tuned circuit should have ____ coupling?

Loose

Critical

Tight

None of the above

The current flow through electrolyte is due to the movement of:-

Holes

Ions

Protons

Electrons

Which resistor will be larger in size;-

1Kﾎｩ, 1 W

100 ﾎｩ, 10 W

10 ﾎｩ, 50 W

A wire of 0.14mm diameter and specific resistance 9.6 micro ohm cm is 440 cm long.The resistance of the wire will be:-

11.3 ohm

9.6 ohm

27.4 ohm

The element of electric heater are made up of;-

Carbon

Ninhrome

Copper

In a Multivibrator, we have____ feedback?

Both positive and negative

100 % positive

Negative

None of the above

Five carbon zinc cell in series have an output of:-

1.5 V

5.0 V

7.5 V

The D.C. load of a transistor amplifier is generally_____ that of a A.C. load?

None of the above

The same as

More than

Less than

The class B push-pull circuit can deliver 100 W of A.C. output power. What should be the minimum power rating of each transistor ?

80 W

20 W

10 W

40 W

A relay is ____switch?

An Electronic

None of the above

A Mechanical

An Electromechanical

A negatively charged particle present in an atom:-

Proton

Electron

Neutron

The current due to electron flow in conduction band is the hole current in valence band:-

Less than

Equal to

Greater than

The output stage of a multistage amplifier usually employs ______?

Preamplifier

None of the above

Class A power amplifier

Push-pull amplifier

The Q of a tuned circuit refers to the property of_____?

Fidelity

Selectivity

Sensitivity

None of the above

Voltage dependent resistors are made from:-

Graphite

Silicon carbide

Charcoal

The kinetic energy of a bounded electron is_____________ than that of unbounded electron;-

Greater

Less

In a lithium cell the positive electrode is made of:-

Carbon

Stainless steel

Zinc dust

Spongy iron

The parallel combination of a 470 Ω resistor and a 680 Ω resistor is in series with the parallel combination of four 2 kΩ resistors. The total resistance is____?

1,650 Ω

778 Ω

. 1,078 Ω

77.8 Ω

The current in a chemical cell is movement of:-

Negative ions

positive holes charge

Both b, c

Positive ions

If L/C ratio of a parallel LC circuit is increased, the Q of the circuit_____?

Is decreased

Remains the same

None of the above

Is increased

______ Coupling is generally employed in power amplifiers?

Impedance

Direct

Transformer

A relay is superior to a mechanical switch because it _____?

None of the above

Combines control with power amplification

Does not require moving contacts

Is relatively inexpensive

The efficiency of a modern accumulator is of order of;-

70%

50%

33%

100%

In Nickel iron cell the electrolyte is:-

dilute sulphuric acid

dilute ammonium hydroxide

dilute potassium hydroxide

Two 3.3 kΩ resistors are in series and this series combination is in parallel with a 4.7 kΩ resistor. The voltage across one of the 3.3 kΩ resistors is 12 V. The voltage across the 4.7 kΩ resistor is_____?

24 V

6 V

12 V

0 V

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