Electrical Safety (VCE SSCE Physics): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
ShowHide
Practise the questions
10 questions from this quiz
Why can birds sit safely on high-voltage power lines?
Why can birds sit safely on high-voltage power lines?
Wire has lower resistance than bird's body
How much lower is wet skin resistance compared to dry skin?
How much lower is wet skin resistance compared to dry skin?
100 times lower
At what current level does ventricular fibrillation of the heart muscle occur?
At what current level does ventricular fibrillation of the heart muscle occur?
mA
What color is the active wire in Australian electrical wiring?
What color is the active wire in Australian electrical wiring?
Brown
What is the standard voltage supply to Australian homes?
What is the standard voltage supply to Australian homes?
V
How quickly does an RCD trip when it detects a current imbalance?
How quickly does an RCD trip when it detects a current imbalance?
Within milliseconds
How far should you stay from fallen power lines during first aid?
How far should you stay from fallen power lines during first aid?
At least m away
What is the key principle about electrical danger to humans?
What is the key principle about electrical danger to humans?
Current kills, not voltage alone
What is the main difference between a fuse and a circuit breaker?
What is the main difference between a fuse and a circuit breaker?
Fuse must be replaced, breaker resets
How many insulation layers does a double-insulated appliance have?
How many insulation layers does a double-insulated appliance have?
Two layers both rated for V