INDUSTRIAL SAFETY

A process of evaluating the probability and consequences of injury or illness arising from exposure to an identified hazard, and determining the appropriate measures for risk control is known as

• Risk Control.

• Risk Evaluation.

• Risk Assessment.

• Risk Management

An electric shock is caused by

• the loss of fluid in the human body.

• the loss of blood in the human body.

• a voltage passing through the human body.

• an electric current passing through the human body.

When a person received an electric shock and he felt ventricular fibrillation and death, he is likely received an electric shock current of

• 5mA – 10 mA

• 10mA – 15mA

• 20mA – 30 mA

• 50mA and above

Electrical accident will cause electrical injury, which of the followings is not the result from electrical accident?

• Burn

• Bleeding

• Electric shock

• Muscular contraction

The best way to reduce the risk of electric shock when servicing electrical equipment is to

• stand on metal mat.

• use uninsulated tools.

• ensure equipment is not earth.

• isolate the equipment from the supply.

Before an electrical appliance is connected to the supply, we must first check the

• power rating.

• current rating.

• voltage rating.

• class of insulation.

When rescuing an electric shock victim who is still in contact with the live equipment, one must first ensure that the

• supply is isolated.

• victim is still conscious.

• first aid box is available.

• ambulance has been called.

The severity of an electric shock is determined by

• The voltage.

• The power supply.

• The circuit resistance.

• The amount of current flow.

One of the possible situations a person will receive a much lesser degree of electric shock is when he is

• walking barefoot on a carpet.

• in a bathroom after a shower.

• sitting on a field and having his lunch.

• leaning on a metallic lamp post waiting for his bus to arrive.

A textile worker was electrocuted when he touched a sewing machine frame while performing his maintenance duties. This form of electrical shock is known as

• direct contact.

• human contact.

• indirect contact.

• accidental contact.