Observation

The few candidates that attempted the question did very well. The candidates were expected to provide the following answers in order to score good marks:

(a)       

-           This is the effect of emotional feelings experienced from the environment on the human body.
-           A shaky motion on the human body due to mechanical movement/sound.
-           A sound effect which affects human body due to handling or usage of mechanical/power tools.

(b)       

-           Grinders.
-           Polishers.
-           Strimmers.
-           Chain saws.
-           Power drills.
-           Road breakers.
-           Pneumatic tools/equipment.
-           Excavating equipment.
-           Screw Jack.

(c)       

-           Select lower vibration tools and equipment.
-           Supply protective clothing to keep employees warm and dry.
-           Replace old high vibrating tools and equipment with new, low vibrating ones.
-           Implement task rotation and time limits on activities with high exposure levels.
-           Ensure equipment is right for the job, well maintained and in good condition.
-           Provide information and train employees in tool maintenance and usage.
-           Restrict work to short spells.
-           Grip tool as lightly as possible.