Safety

Question 1

What is a primary current?

Answer 1

Electric currents greater than 6 mA that can cause bodily harm.

Question 2

What are secondary currents?

Answer 2

Currents between .5 and 6 mA are considered secondary and can cause involuntary muscle reactions, but not usually significant harm. 

Question 3

Which range of current leads to immycardiac arrest, and carries a high probability of death? 

Answer 3

2000+ mA

Question 4

What range is the “freezing current” or “let go” current range?

Answer 4

6-16mA is where you’re not able to let go of the current source.

Question 5

What happens at 5mA?

Answer 5

Can be painful but generally not harmful.

Question 6

What happens when electric shock is at 17-99mA?

Answer 6

Causes extreme pain and the victim will not be able to let go due to muscle contraction.

Question 7

What happens if electric shock is in 100-2000 mA?

Answer 7

Ventricular fibrillation and nerve damage. Death is likely even under the best circumstances.

Question 8

What do you do in case of electric shock?

Answer 8

1. Turn off electric power. Use non-conductive material to separate person from the source

Question 9

OSHA recommends not more than ____
Of noise per workday.

Answer 9

85 decibels

Question 10

Noises above _____ decibels can cause immediate harm.

Answer 10

120 dB