Question 1

What does the color code Brown-Black-Red indicate in a 4-band resistor?

Accepted Answer

120 ohms

Answer

12 kilohms

Answer

1.2 kilohms

Answer

10 ohms

Question 2

What is the tolerance of a resistor with a color code of Yellow-Violet-Red-Gold?

Accepted Answer

5%

Answer

10%

Answer

2%

Answer

1%

Question 3

What is the purpose of a resistor in an electrical circuit?

Accepted Answer

To limit or control the amount of current flowing in a circuit

Answer

To store electrical energy

Answer

To generate electricity

Answer

To convert AC to DC

Question 4

What is the tolerance of a resistor with a color code of Green-Blue-Brown-Gold?

Accepted Answer

5%

Answer

10%

Answer

1%

Answer

0.1%

Question 5

What does the color code Orange-Orange-Brown indicate in a 4-band resistor?

Accepted Answer

33 kilohms

Answer

3.3 kilohms

Answer

330 ohms

Answer

3.3 ohms

Question 6

What does the color code Green-Blue-Gold indicate in a 4-band resistor?

Accepted Answer

56 ohms

Answer

56 kilohms

Answer

5.6 kilohms

Answer

560 ohms

Question 7

What is the tolerance of a resistor with a color code of Red-Orange-Black-silver?

Accepted Answer

10%

Answer

5%

Answer

0.1%

Answer

1%

Question 8

What is the direction of current in a simple DC circuit?

Accepted Answer

uni-directional

Answer

non-directional

Answer

multi-directional

Answer

bi-directional

Question 9

Which component is commonly used to control the amount of current in a DC circuit?

Accepted Answer

resistor

Answer

capacitor

Answer

inductor

Answer

diode

Question 10

What is the symbol for a direct current (DC) source in a circuit diagram?

Accepted Answer

A straight line with a dashed line underneath

Answer

A circle with a plus sign inside

Answer

A zigzag line

Answer

A triangle

Question 11

What is the unit of measurement for electric current?

Accepted Answer

Ampere

Answer

Ohm

Answer

Watt

Answer

Volt

Question 12

In a DC circuit, what happens to the direction of current when a battery's terminals are reversed?

Accepted Answer

The direction of current reverses

Answer

The current remains the same

Answer

The voltage increases

Answer

The current stops flowing

Question 13

What is the purpose of a fuse in a DC circuit?

Accepted Answer

To protect against excessive current

Answer

To store electrical energy

Answer

To amplify the current

Answer

To regulate voltage

Question 14

What is the difference between AC and DC currents?

Accepted Answer

AC current periodically changes its direction, while DC current flows in one direction.

Answer

AC current and DC current have the same characteristics.

Answer

AC current flows in one direction, while DC current periodically changes its direction.

Answer

AC current is constant, while DC current fluctuates.

Question 15

What is the symbol for a resistor in a circuit diagram?

Accepted Answer

A zigzag line

Answer

A straight line with a dashed line underneath

Answer

A circle with a plus sign inside

Answer

A triangle

Question 16

Which material is commonly used as an insulator in a DC circuit?

Accepted Answer

Rubber

Answer

Copper

Answer

Aluminum

Answer

Steel

Question 17

What is the unit of measurement for resistance?

Accepted Answer

Ohms

Answer

Coulombs

Answer

Volts

Answer

Amps

Question 18

What color code corresponds to a 100 ohm resistor?

Accepted Answer

Brown, Black, Brown

Answer

Orange, White, Red

Answer

Green, Blue, Red

Answer

Yellow, Purple, Yellow

Question 19

What is the relationship between resistance, voltage, and current in a DC circuit?

Accepted Answer

According to Ohm's Law, resistance is equal to voltage divided by current

Answer

Resistance is equal to voltage multiplied by current

Answer

Resistance is equal to voltage minus current

Answer

Resistance is equal to voltage plus current

Question 20

Which of the following materials is commonly used as a resistor in DC circuits?

Accepted Answer

Carbon

Answer

Copper

Answer

Aluminum

Answer

Silver

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