Physiotherapy: Electric Shock and Safety

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What is the primary function of a fuse in electrical apparatus?

To convert AC to DC

To increase the efficiency of the apparatus

To protect the circuit from overcurrent (correct)

To regulate the voltage of the circuit

What is the most critical factor in determining the severity of electric shock?

Duration of the shock

Intensity of current (correct)

Voltage of the circuit

Type of current (AC or DC)

What is the first step in treating a person who has received an electric shock?

Switching off the AC power source (correct)

Giving artificial respiration

Administering a hot drink

Loosening tight clothing

What is the primary precaution to take when handling electrical equipment?

Not touching electrical equipment Signup and view all the answers

What is the effect of a minor electric shock on the victim?

Fright and possible hysteria Signup and view all the answers

Why is alternating current more severe than direct current in causing electric shock?

Because AC has a greater emf than DC Signup and view all the answers

What is the purpose of testing apparatus before use?

To ensure the apparatus is safe to use Signup and view all the answers

What should be done before investigating a fault in an electrical apparatus?

Disconnecting the apparatus from the power source Signup and view all the answers

What is a common precaution to prevent earth shock in a physiotherapy department?

Ensuring water and gas pipes are out of reach Signup and view all the answers

What is a risk when a person receiving treatment rests their hand on a water pipe?

They might receive an electric shock Signup and view all the answers

What must the voltage be to feel a static shock?

3500 Volts Signup and view all the answers

What is a purpose of ESD flooring?

To prevent and remove static electric charges Signup and view all the answers

What material is NOT generally used in creating ESD flooring?

Wood Signup and view all the answers

Why should a rubber mat be used under a patient's feet during treatment?

To prevent electric shock by providing insulation Signup and view all the answers

What is the primary purpose of a fuse in an electrical circuit?

To stop the flow of current when it exceeds a safe level Signup and view all the answers

What are the immediate steps to take when a fuse blows?

Switch off the main supply and replace the burned fuse wire with a new one of correct thickness Signup and view all the answers

Why should a person avoid forming a part of the earth connection in an electrical circuit?

It can result in an earth shock Signup and view all the answers

What causes a fuse to blow in an electrical circuit?

The apparatus has a high wattage Signup and view all the answers

In a three-wire connection, what can result in an earth shock?

Contact between person and a live wire while connected to earth Signup and view all the answers

What factor is NOT a common cause of fuse blowing?

High resistance in the apparatus Signup and view all the answers

What is the result of a thicker fuse wire in the circuit?

It allows a larger intensity current than intended Signup and view all the answers

How can a person unintentionally create an earth connection?

By touching a conductor connected to earth such as water pipes or radiators Signup and view all the answers