Exam 20: Electrical Hazards

The current effect on the human body of 10 to 15 milliamps may result in death after 3 minutes of contact.

Ohm's law is stated as:

A continuity tester may be used to determine whether a conductor is properly grounded or has a break in the circuit.

A safety device compares the current flow in the hot wire to the current in the neutral wire to detect the flow of current to ground?

An arc flash is an electrical short circuit that travels through the air.

The greatest danger to humans suffering electrical shock results from current flow.

In Canada, standard AC circuits cycle how many times per second?

The CE Code specifies industrial and domestic electrical safety precautions.

A tree is a common natural path for what type of electrical hazard?

Most industrial and domestic use of electricity is supplied by direct current.

What is the likely effect of 5 milliamps of electrical current?

A short circuit is one in which the load has been removed or bypassed.

In Canada, the rules and regulations regarding installation, wiring, and maintenance of electrical equipment are governed by the Canadian Electrical Code (CE Code).

Electricity is the flow of negatively charged particles called electrons through an electrically conductive material.

If an electrician sees that the neutral wire was broken causing the motor to no longer operate, what type of problem exists in the circuit?

Power is measure in:

What means of electrical safety is being employed when two pieces of equipment connected by a conductor to eliminate the difference in static charge potential between the materials?

To reduce the risk of electrocution by lightning, do not use electrical equipment during storms.

Which method is commonly used to protect workers against potentially fatal exposure to electrical currents?

Grounding of electrical equipment is the primary method of reducing electrical hazards piece of equipment.