Test yourself on good form
Having the right tools and conditions can help to ensure that you are not injured by working with machinery that vibrates. No matter how strong you are, machines that vibrate strongly can affect your health.
Test yourself and find out whether you are ready to work with vibrating machines.
3 m/s²5 m/s²7 m/s²Your answer is correct
Your answer is wrong
The limit on how much vibration you can be exposed to over a working day is 5 m/s². This limit is absolute and must not be exceeded
When the machine is ready for useWhen the employer must act to reduce load.When the machine cannot take any more vibrationYour answer is correct
Your answer is wrong
The action value indicates when the employer must act to reduce load. The action value is set to 2.5 m/s² for hands and arms.
Act only at frequencies of 100 Hz and above (e.g. angle grinders)Act on all machines which vibrateSimply do not work. It is all a con!
Your answer is correct
Your answer is wrong
Vibration-damping gloves and handles take effect only when you use machines with a vibration frequency of 100 Hz or above. You must always choose a different solution if possible.
A way of expressing how strong I am when I work with vibrating machinesA way of expressing the vibration transmitted to the hands and arms here and now.
A way of expressing how much the machine can vibrateYour answer is correct
Your answer is wrong
Vibration intensity is a way of expressing the vibration transmitted to the hands and arms here and now. Vibration intensity is expressed as acceleration in m/s². If it exceeds 2.5 m/s², action must be taken.
"White fingers""Black toes""Green nails"Your answer is correct
Your answer is wrong
"White fingers" is the name of the affliction whereby the blood supply to the fingers is blocked temporarily. You may suffer from this if you work on vibrating machines. The symptoms are lack of sensation, numbness and pain in the fingers, hands and arms.