# Online Quiz - By Ecea

44 Questions | Attempts: 368
Share  Settings  Make your brain work on a perfect blend of electronics and general knowledge

• 1.
A(n) ________ is the smallest component of every element.
• 2.
The relation of the voltage across an inductor to its current is described as
• A.

A. leading the current by 90 degrees

• B.

B. lagging the current by 90 degrees

• C.

C. leading the current by 180 degrees

• D.

D. in phase with the current

• 3.
Materials with permeabilities slightly less than that of free space are referred to as
• A.

A. Diamagnetic

• B.

B. Ferromagnetic

• C.

C. Non-magnetic

• D.

D. Paramagnetic

• 4.
Inserting a soft iron core into a coil has what effect on the inductance of the coil?
• A.

A. Increase inductance

• B.

B. Decrease inductance

• C.

C. Does not affect the inductance

• D.

D. None of these

• 5.
The natural magnet refers to
• A.

A. Steel

• B.

B. Soft iron c. Magnesia b. Soft iron c. Magnesia b. Soft iron

• C.

C. Magnesia

• D.

D. Lodestone

• 6.
A battery with a rating of 9 volts has an internal resistance of 20 ohms, what is the expected resistance of the bulb that is connected across the battery to attain a maximum power transfer?
• A.

A. 20 ohms

• B.

B. 10 ohms

• C.

C. 5 ohms

• D.

D. 2 ohms

• 7.
The reciprocal of capacitance is called________(
• A.

A. Elastance

• B.

B. Permitivitty

• C.

C. Permeability

• D.

D. Conductance

• 8.
Which of the following cannot be included in a loop of Kirchhoff’s Voltage law
• A.

A. Current sources

• B.

B. Voltage sources

• C.

C. Resistance

• D.

D. Reactance

• 9.
Find the phase angle between the voltage across through the circuit when XC is 25 ohms, R is 100 ohms and XL is 50 ohms.
• A.

A. 76 degrees with voltage leading the current

• B.

B. 14 degrees with the voltage lagging the current

• C.

C. 14 degrees with the voltage leading the current

• D.

D. 76 degrees with the voltage lagging the current

• 10.
The all-pass filter is sometimes called a _____
• A.

A. Tow Tomas filter

• B.

B. Delay equalizer

• C.

C. KHN filter

• D.

D. State-variable filter

• 11.
A series connected circuit consists of 3 loads and consume a total power of 50 Watts. It was reconfigured such that 2 are in parallel and the other load is in series with the combination. What is the expected power to be consumed then?
• A.

A. 50 Watts

• B.

B. 25 Watts

• C.

C 75 watts

• D.

D. 45 watts

• 12.
Highest operating frequency can be expected in case of
• A.

A. bipolar transistor

• B.

B. JFET

• C.

C. MOSFET

• D.

D. IGFET

• 13.
If the gain of an amplifier without feedback is 10 and with negative feedback is 8, then the feedback fraction is
• A.

A. 0.025

• B.

B. 0.9

• C.

C. 0.8

• D.

D. 0.225

• 14.
______is used for counting of binary information.
• A.

A. clamper circuit

• B.

B. Schmitt trigger

• C.

C. bistable vibrator

• D.

D. monostable vibrator

• 15.
. A 33-kohm resistor is connected in series with a parallel combination made up of 56-kohm resistor and a 7.8-kohm resistor. What is the total combined resistance of the three resistors?
• A.

A. 39067 ohms

• B.

B. 49069 ohms

• C.

C. 63769 ohms

• D.

D. 95000 ohms

• 16.
The kind of oscillator found in an electronic wristwatch is the
• A.

A. Armstrong

• B.

B. Clapp

• C.

C. Colpitts

• D.

D. Quartz crystal

• 17.
A 220-volt, 60Hz is driving a series RL circuit. Determine the current if R = 100 ohms and 20 mH inductance
• A.

A. 2.2A(lagging)

• B.

B. 2.0 A(lagging)

• C.

• D.

• 18.
Capactors are a type of battery?
• A.

Yes it can be used as a Battery

• B.

No it only holds a small charge

• C.

It is nothing like a Battery

• 19.
What is the standard operating level of professional audio equipment?
• A.

+10 dBV

• B.

+4 dBu

• C.

-10 dBV

• D.

-20 dBSPL

• 20.
Convert 1110101 binary to octal.
• A.

125

• B.

79

• C.

165

• 21.
Convert 451 decimal to octal.
• A.

443

• B.

703

• C.

112

• 22.
What is the legendary Argentianen Football player Maradona's last name
• A.

Wayne

• B.

Diego

• C.

Carlos

• D.

Pablo

• E.

Chicken

• 23.
Which of the following is not a UNO Agency?
• A.

International Labour Organization

• B.

International Monetary Fund

• C.

Food and Agricultural Organization

• D.

International Postal Union

• 24.
The size of screwdriver is determined by the shank
• A.

Length.

• B.

Weight.

• C.

Temper.

• D.

Width.

• 25.
Which Latin name of a constellation is not paired with an English version?
• A.

Aries - ram

• B.

Cancer - crab

• C.

Draco - dragon

• D.

Sagittarius - swan Back to top