Question 1:

A joiner has received an electric shock from a portable electric, 230 V drill while fitting decorative ceiling board to the lounge of a Guest House. The drill is five years old but has not been tested during this time. Fortunately the joiner did not suffer serious injuries.

(i) State the factors that may have limited the severity of injury on this occasion.

(ii) Describe the physical effects on the body that such contact with electricity could have caused under different circumstances.

(iii) Explain how the risk of serious injury from electricity in this case could be minimized.

(iv) With respect to the use of electric portable appliances in the workplace, identify eight examples of faults and bad practices that could contribute to electrical accidents.

Question 2:

(i) Outline the FOUR main categories of guards and safeguarding devices that may be used to minimize the risk of contact with dangerous parts of machinery.

(ii) What are the factors to be considered in the design and construction of machine guards?

(iii) Identity the various types of mechanical hazards associated with the use of bench top grinding machines.

Question 3:

(i) Explain what is meant by safe system of work.

(ii) What are the factors to be considered when developing a safe system of work?

(iii) What are the benefits of doing a Job Safety Analysis?

(iv) List the factors to be considered when setting a priority for analysis of jobs.

Question 4:

(i) Define Dangerous goods AND why are they considered dangerous.

(ii) What are the requirements and factors to be considered for storing dangerous goods in workplace?

(iii) What are the preventive measures that can be taken in case of Chemical Spillage?