During workshop safety trainings student are given lesson on handling electrical tools and equipment. Outline three safety precautions observed when working with battery.

Here are the answers to your questions:

Question 1:
In a workshop practical lesson, trainees are required to connect a lighting circuit in a modern vehicle. State four functions of fuses in an automotive electrical system.

Functions of fuses in an automotive electrical system:

• Protecting electrical components from damage due to overcurrent.
• Preventing wiring harnesses from overheating and potentially causing fires.
• Isolating faulty circuits to prevent a single fault from affecting the entire electrical system.
• Allowing for easy identification and replacement of a failed component by indicating where an overcurrent occurred.

Question 2:
A technician carries out diagnosis in electronic fuel injection system uses OBD II scanner to retrieve faults codes. Mention advantages of using computerized diagnostic tools in automotive electrical maintenance.

Advantages of using computerized diagnostic tools in automotive electrical maintenance:

• Faster and more accurate fault identification, reducing diagnostic time.
• Access to real-time data from various sensors, allowing for precise monitoring of system performance.
• Ability to retrieve specific diagnostic trouble codes (DTCs), which pinpoint the exact nature of a fault.
• Capability to perform bidirectional controls and tests, such as activating components or resetting parameters, aiding in thorough troubleshooting.
• Reduced labor costs due to efficient diagnosis and repair.

Question 3:
During workshop safety training, students are on handling electrical tools and equipment. Outline three safety precautions observed with battery.

Three safety precautions observed with batteries:

• Always wear appropriate personal protective equipment (PPE), including safety glasses and gloves, to protect against acid splashes and electrical shocks.
• Ensure proper ventilation when working with batteries, especially during charging, to disperse hydrogen gas which is highly flammable.
• Avoid creating sparks or open flames near batteries, as the hydrogen gas produced can ignite and cause an explosion.
• Use insulated tools to prevent accidental short circuits between battery terminals.