Resistor Color Code Chart

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Questions and Answers

What does the first band on a resistor represent?

The first significant digit (correct)
The second significant digit
The multiplier
The tolerance

What is the multiplier for a resistor with a yellow third band?

10,000 (correct)
100,000
10
1

What is the tolerance of a resistor with a gold fourth band?

±1%
±10%
±5% (correct)
±20%

How many bands are used to determine the resistance value and tolerance of a resistor?

4 (A) Signup and view all the answers

What is the significance of the second band on a resistor?

It represents the second significant digit (B) Signup and view all the answers

What is the resistance value of a resistor with the colors Brown, Black, Red, and Gold?

1000 ohms (C) Signup and view all the answers

What does the color blue represent in the standard color code chart?

Multiplier 1,000,000 (B) Signup and view all the answers

What is the value of a resistor with the colors Grey, Green, Orange, and None?

5,300,000 ohms (C) Signup and view all the answers

What is the primary purpose of Personal Protective Equipment (PPE)?

To prevent or reduce injuries from hazards (B) Signup and view all the answers

Which of the following is NOT a type of Personal Protective Equipment (PPE)?

Fire extinguishers (B) Signup and view all the answers

What should you do regularly to ensure the effectiveness of Personal Protective Equipment (PPE)?

Inspect PPE regularly for damage or wear (D) Signup and view all the answers

What is the purpose of Hazard Warning Symbols?

To provide a visual warning of danger (D) Signup and view all the answers

Which of the following is a type of Hazard Warning Symbol?

Flammable symbol (A) Signup and view all the answers

Why is it important to recognize Hazard Warning Symbols?

Quick recognition of symbols can help prevent accidents and injuries (D) Signup and view all the answers

What should be done to ensure the effectiveness of Hazard Warning Symbols?

Symbols should be clearly displayed and easily visible in the workplace (D) Signup and view all the answers

What is the benefit of wearing Personal Protective Equipment (PPE) consistently?

It reduces the risk of injuries and accidents (B) Signup and view all the answers

What is essential for workers to do in order to prevent accidents and injuries?

Recognize and understand hazard warning symbols (C) Signup and view all the answers

Why is it important to follow the manufacturer's instructions for Personal Protective Equipment (PPE)?

To ensure the PPE is compatible with other equipment and tasks (B) Signup and view all the answers

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Study Notes

Resistor Color Codes: Color Code Charts

Resistor color codes are used to identify the resistance value and tolerance of a resistor. The color code chart is a simple way to decode the colors on a resistor.

Standard Color Code Chart

Color	Digit	Multiplier	Tolerance
Black	0	1	-
Brown	1	10	-
Red	2	100	-
Orange	3	1,000	-
Yellow	4	10,000	-
Green	5	100,000	-
Blue	6	1,000,000	-
Violet	7	10,000,000	-
Grey	8	100,000,000	-
White	9	1,000,000,000	-
Gold	-	0.1	±5%
Silver	-	0.01	±10%
None	-	-	±20%

How to Read the Chart

First Band (Digit): The first band on the resistor represents the first significant digit. Match the color to the digit in the chart.
Second Band (Digit): The second band represents the second significant digit. Match the color to the digit in the chart.
Third Band (Multiplier): The third band represents the multiplier. Match the color to the multiplier in the chart.
Fourth Band (Tolerance): The fourth band represents the tolerance. Match the color to the tolerance in the chart.

Example: A resistor with the colors Brown, Black, Red, and Gold would have a resistance value of 1000 ohms with a tolerance of ±5%.