18 Questions
What does the first band on a resistor represent?
The first significant digit
What is the multiplier for a resistor with a yellow third band?
10,000
What is the tolerance of a resistor with a gold fourth band?
±5%
How many bands are used to determine the resistance value and tolerance of a resistor?
4
What is the significance of the second band on a resistor?
It represents the second significant digit
What is the resistance value of a resistor with the colors Brown, Black, Red, and Gold?
1000 ohms
What does the color blue represent in the standard color code chart?
Multiplier 1,000,000
What is the value of a resistor with the colors Grey, Green, Orange, and None?
5,300,000 ohms
What is the primary purpose of Personal Protective Equipment (PPE)?
To prevent or reduce injuries from hazards
Which of the following is NOT a type of Personal Protective Equipment (PPE)?
Fire extinguishers
What should you do regularly to ensure the effectiveness of Personal Protective Equipment (PPE)?
Inspect PPE regularly for damage or wear
What is the purpose of Hazard Warning Symbols?
To provide a visual warning of danger
Which of the following is a type of Hazard Warning Symbol?
Flammable symbol
Why is it important to recognize Hazard Warning Symbols?
Quick recognition of symbols can help prevent accidents and injuries
What should be done to ensure the effectiveness of Hazard Warning Symbols?
Symbols should be clearly displayed and easily visible in the workplace
What is the benefit of wearing Personal Protective Equipment (PPE) consistently?
It reduces the risk of injuries and accidents
What is essential for workers to do in order to prevent accidents and injuries?
Recognize and understand hazard warning symbols
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
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%.
Learn how to read and decode resistor color codes to determine the resistance value and tolerance of a resistor. Understand the standard color code chart and how to apply it.
Make Your Own Quizzes and Flashcards
Convert your notes into interactive study material.
Get started for free
