1.
You need to use an air-powered tool. Which of these is not a hazard?
Correct Answer
A. Electrical shock
Explanation
Electrical shock is not a hazard when using an air-powered tool because these tools are not powered by electricity. Therefore, there is no risk of electrical shock when using them.
2.
It is dangerous to run an abrasive wheel faster than its recommended top speed. Why?
Correct Answer
C. The wheel could burst
Explanation
Running an abrasive wheel faster than its recommended top speed can cause it to burst. When the wheel rotates at a speed higher than it is designed for, the centrifugal force acting on the wheel increases significantly. This excessive force can cause the wheel to fracture or explode, posing a serious safety hazard. Therefore, it is crucial to adhere to the recommended top speed to prevent the wheel from bursting and potentially causing harm to the operator or others nearby.
3.
Someone near you is using a laser level. What health hazard is likely to affect you?
Correct Answer
B. None if it is used correctly
Explanation
If the laser level is used correctly, there should be no health hazard that would affect you. This means that the laser is being used in a safe manner and is not causing any harm to your health.
4.
You need to use a power tool, but it has a 13 amp plug fitted. What would be the safest thing to do?
Correct Answer
B. Get a 110 volt tool to use
5.
If you need to use a power tool with a rotating blade, you should:
Correct Answer
B. Adjust the guard to expose just enough blade to let you do the job
Explanation
Adjusting the guard to expose just enough blade to let you do the job is the correct answer because it ensures both safety and functionality. Removing the guard completely or adjusting it to expose the maximum amount of blade can be dangerous as it increases the risk of accidents and injuries. Wearing leather gloves is not a substitute for using the guard properly and may not provide adequate protection. Adjusting the guard to the appropriate level allows for a balance between visibility and safety, enabling the user to complete the task effectively while minimizing the chances of accidents.
6.
You must be fully trained before you use a cartridge-operated tool. Why?
Correct Answer
D. They operate like a gun and can be dangerous in inexperienced hands
Explanation
Cartridge-operated tools operate similarly to guns, making them potentially dangerous in the hands of inexperienced individuals. These tools require proper training to ensure that users understand how to handle them safely and avoid accidents. Without proper training, there is a higher risk of mishandling or misusing the tool, which could lead to serious injuries or accidents. Therefore, being fully trained before using a cartridge-operated tool is essential to ensure safety and prevent any potential harm.
7.
Chainsaws are dangerous because:
Correct Answer
D. All of the other answers
Explanation
Chainsaws are dangerous because they are heavy to use, noisy, and there is no guard on the cutting chain. These factors contribute to the potential risks and hazards associated with operating a chainsaw. The weight of the chainsaw can cause fatigue and strain on the user, increasing the likelihood of accidents. The loud noise produced by the chainsaw can lead to hearing damage if proper protection is not worn. Additionally, the absence of a guard on the cutting chain increases the risk of accidental contact with the chain, resulting in severe injuries. Therefore, all of these reasons combined make chainsaws dangerous.
8.
Before you adjust an electic hand tool, you should:
Correct Answer
C. Switch it off and remove the plug from the socket
Explanation
Before adjusting an electric hand tool, it is important to switch it off to ensure safety. However, simply switching it off may not be sufficient as there is still a risk of accidental activation if the tool is left plugged in. Therefore, it is necessary to also remove the plug from the socket to completely eliminate any chance of the tool turning on while making adjustments.
9.
What is the main danger if you use a chisel with a 'mushroomed' head?
Correct Answer
A. It will shatter and send fragments flying into the air
Explanation
Using a chisel with a 'mushroomed' head can be dangerous because it can shatter and send fragments flying into the air. This can cause serious injuries to the user or anyone nearby. The mushrooming of the chisel head occurs when the striking end becomes deformed or flattened due to repeated use. This weakens the integrity of the chisel and increases the risk of it breaking apart upon impact. Therefore, it is important to regularly inspect and maintain chisels to ensure safe usage.
10.
To operate a powered hand tool, you must be:
Correct Answer
C. Trained and competent
Explanation
To operate a powered hand tool, being trained and competent is necessary. This means that you have received proper instruction and have the necessary skills to safely and effectively use the tool. Age requirements may vary depending on the specific tool and regulations, but being trained and competent is a fundamental requirement for operating any powered hand tool.