1.
Electrical workers should wear leather protector gloves over rubber insulating gloves.
Correct Answer
A. True
Explanation
Electrical workers should wear leather protector gloves over rubber insulating gloves to provide an additional layer of protection. Leather gloves protect against mechanical hazards such as cuts, abrasions, and punctures, while rubber insulating gloves protect against electrical shock. By wearing both types of gloves, workers can ensure they are adequately protected from both electrical and physical hazards in their work environment.
2.
How many types of gloves exist that vary according to their electrical characteristics?
Correct Answer
C. 6
Explanation
There are six types of gloves that vary according to their electrical characteristics.
3.
At what maximum interval the insulating rubber blankets should be tested?
Correct Answer
B. 1 year
Explanation
Insulating rubber blankets should be tested at a maximum interval of 1 year. This is because regular testing ensures that the blankets are still in good condition and can effectively insulate against electrical shock. Testing at shorter intervals, such as every month or every 6 months, may be unnecessary and time-consuming. On the other hand, testing at longer intervals, such as every 10 years, may result in potential safety risks if the blankets deteriorate or become damaged before the next testing. Therefore, a yearly testing interval strikes a balance between safety and practicality.
4.
What does this ISO graphical symbol signify?
Correct Answer
A. Connect the earth terminal to the ground.
Explanation
The ISO graphical symbol signifies the action of connecting the earth terminal to the ground. This symbol is commonly used to indicate the proper grounding of electrical systems and equipment. Grounding is essential for safety reasons as it helps to prevent electrical shocks and minimize the risk of electrical fires. By connecting the earth terminal to the ground, any excess electrical current can be safely discharged, protecting both people and equipment from potential harm.
5.
The safest form of electrical shock is _________!
Correct Answer
B. Safety
Explanation
The safest form of electrical shock is safety. This means that taking proper precautions and following safety guidelines when working with electricity can help prevent accidents and minimize the risk of electric shock. Safety measures such as wearing protective gear, using insulated tools, and turning off the power supply before working on electrical equipment are essential to ensure personal safety and avoid electrical shocks.
6.
While working with an insulating line hose that has Minimum Approach Distances, insulating gloves and sleeves should not be worn at all.
Correct Answer
B. False
Explanation
Insulating gloves and sleeves are essential protective equipment when working with an insulating line hose that has Minimum Approach Distances. These items provide an additional layer of insulation and protection against electrical hazards. Therefore, it is incorrect to say that they should not be worn at all. The correct answer is False.
7.
Which of these is not an appropriate PPE in the electrical power industry?
Correct Answer
D. None of the above
Explanation
All of the options listed - flame-resistant clothing, safety glasses, and hard hats - are appropriate PPE in the electrical power industry. Therefore, the correct answer is "None of the above."
8.
What barriers and insulating covers can protect against?
Correct Answer
C. Both a and b
Explanation
Barriers and insulating covers can protect against both electrocution hazards and the effects of arc flash or arc blast. These safety measures create a physical barrier between individuals and electrical equipment, preventing direct contact with live parts and reducing the risk of electric shock or burns. Additionally, insulating covers can help contain the energy released during an arc flash or blast, minimizing the potential damage to nearby personnel and equipment. Therefore, both options a and b are correct.
9.
Like PPE, IPE is also worn on the body.
Correct Answer
B. False
Explanation
IPE stands for Individual Protective Equipment, which is not worn on the body like PPE (Personal Protective Equipment). IPE refers to equipment that is used to protect individuals in hazardous environments, such as gas masks or respirators, which are not worn directly on the body but rather on the face. Therefore, the statement that IPE is also worn on the body is false.
10.
Which of these risks is associated with electricity?
Correct Answer
D. All of the above
Explanation
All of the above risks are associated with electricity. Electricity can cause explosions due to short circuits or faulty wiring, which can lead to the release of flammable gases or ignition of combustible materials. It can also cause fires if overheating occurs or if electrical sparks ignite flammable substances. Additionally, electricity can cause electric shocks, which can be harmful or even fatal to humans and animals.