Electrical Safety Quiz Pdf

Posted By admin On 27/11/21
  • Safety Quiz - Electrical Safety-1 Name Date Directions: Read each question carefully and choose the most correct answer by completely filling in the box next to the answer 1. Employees who work on or repair electrical equipment A. Are volunteers B. Are trained and authorized.
  • Electrical safety is definitely something that comes with knowledge and experience - 16- and 17-year-olds who work with electricity experience electrical accidents at a rate 5.4 times higher than normal.
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Test Your Electrical Safety Knowledge

It's estimated that an employee is 20 times more likely to be killed when working with electricity than in any other type of accident. This makes it essential for workers to know how to protect themselves and others from harm. How much do you know about safe working practices when it comes to electricity? Have a go at our short quiz and find out.

Which one of the following is a source of ignition that may spark and start a fire?

How often should electrical systems be inspected and tested?

If you come across a faulty electrical appliance, what should you do?

When should you carry out a visual inspection of the electrical equipment you are using?

Workplace Electrical Safety Quiz
Congratulations on finishing the test, share your results below.

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Dipil
Kesava Pillai
Hansa Vyas

Kesava Pillai
Dear Friends, A simple quiz on Electrical safety is attached. Try to answer and see where you stand, Regards, Kesava Pillai
From India, Kollam
Attached Files
Quiz 6 Electrical.doc(145.5 KB, 5257 views)

Kesava Pillai
Dear dipil,
I understand that there was some doubts about which is more dangerous to human body -AC or DC.
For ignorance we have no cure. Instead, if the engineers asked for some light we could have provided.
Electrical engineers are good at their own field - making electricity to work for them. Majority we came across had never even thought of the effect of electricity on human body. They know electricity causes shock and death. Their answers on other safety matters are often imaginary!
Now just ask them: What is ventricular fibrillation? What amount of current is required to cause ventricular fibrillation?
What is the minimum voltage at which one can feel electricity ?
What is the average resistance of human body?
What is the maximum resistance of human body?
Which part of the body has least resistance?
What is the minimum voltage required to pass sufficient current through the body to kill a person ? There are many more for a safety/Electrical engineer to understand in this field.
Coming to our issue : - Ask them what is the difference in rms value of AC and DC.
Kindly send these answers if you could get from the engineers who says DC is more dangeerous than AC on receipt of which I may be able to advise ASKCRITERION to provide the exact reasons why AC is more dangerous than DC.
Regards,
Kesava Pillai.

From India, Kollam
hansa vyas
ElectricalDear sir,
let me try to answer the above question,
1.What is ventricular fibrillation? What amount of current is required to cause ventricular fibrillation?
A. Ventricular fibrillation, a serious heart condition may lead to death.It occurs at 50 to 100mA.
2.What is the minimum voltage at which one can feel electricity ?
1 to 8 mA -Perceptible, but not painful
3.What is the average resistance of human body?
Dry skin 1,00,000 to 6,00,000 ohms
Wet skin 1000 ohms
4.What is the maximum resistance of human body
not sure about it
5.Which part of the body has least resistance?
Ear to ear (about) 100 ohms
Regards,
hansa

Electrical Safety Quiz Questions And Answers Pdf

From India, Udaipur
Kesava Pillai
Dear Hansa.
1 is just an attempt but not clear for people to understand.
2 you expressed about current whereas the question is on voltage.
3 and 5 yes, your answers are nearly correct .
4. You have already answered it through item 3.
Let us wait and see for few days more to resolve the issue pl.
Regards,
Kesava Pillai

From India, Kollam
dipil
Dear Sir
Please go through the attached file. Four answers on the same from people in different field is attached.
Requesting you to give the exact answers to the mentione questions...
Also please help in answering the below two more questions?
1. Why we are advising usage of 24V supply? Why we should believe 24V supply is safe?
2. How earthing can reduce the risk of receiving an electrical shock?
With regards,
Dipil Kumar V

From India
Attached Files
Debate CiteHR - Answers.doc(35.0 KB, 1242 views)

Kesava Pillai
Dear Friends,
I always insist “while a safetyman advises others on safety issues he is not to assume things and say I think……..” He has to give a definite answer -either yes or no. Often a safety issue becomes a matter of life and death as in the case of a confined space entry or a heavy lift. We can not take chances. We have to be certain in such issues. With regard to electricity also we have to be quite serious. If one is not sure he need not be ashamed to ask for experts/consultants.
As I mentioned electrical engineers are often not trained in safety. For sure they should be trained in safety and CPR. From the replies provided by them you can see where they stand and why they consider DC is more dangerous than AC. It is their opinion only. They are not sure.
The comparison on the effect of DC and AC is attached, (current in milliamperes)
1. AC is more dangerous than DC.
2. If our AC power supply is 220 Volts (RMS) then the actual peak voltage is about 310 V.
(To get same effect of say DC 220 volts we require peak voltage of 310 in AC and we call it AC 220 V.)
3. Interference with the normal rhythm of heart causes the condition called ventricular fibrillation. In this condition fibers of the heart muscles instead of contracting in coordinating manner (which causes heart to act as a pump) contract separately and at different times. When this happens, the heart's lower (pumping) chambers contract in a rapid, unsynchronized way. (The ventricles 'flutter' rather than beat.) The heart pumps little or no blood. Blood circulation ceases and (unless proper resuscitation efforts made) death ensues. Heart cannot spontaneously recover from the condition. It is estimated that 50 ma is sufficient to cause Ventricular fibrillation.
4. 1.5 volts, a pen torch cell if touched with your tongue you feel the effect of current.
5. Average resistance of human body is considered as 1000 ohms. Internal resistance 400 – 600 ohms.
6. 6, 00,000 ohms. Skin on the palm of a village blacksmith who never used gloves in his life who can take a heated iron piece with his bare hands and sole of an old man who never used foot wear in his life. Callus – the dead cells or thickened skin on their hands and sole has that resistance.
7. Between the ears we have the least resistance of around 100 ohms only.
8. Minimum voltage required to pass sufficient current to kill a person is around 60 volts.
If the frequency is increased to thousands probably we may not even feel electricity. The normal supply frequency of 50 0r (60 as in USA) is all the more dangerous.
Regards,
Kesava Pillai

From India, Kollam
Attached Files
EFFECT OF ELECTRICALCURRENT ON HUMAN BODY.doc(33.5 KB, 1101 views)

Electrical Safety Test


dipil
Dear Sir
Great reply!!! Thanks a lot for sharing!!!
I will share the info with all who participated in the discussions; with your kind permission!!!
Can you please elaborate the last sentence. Why it is so?
'If the frequency is increased to thousands probably we may not even feel electricity. The normal supply frequency of 50 0r (60 as in USA) is all the more dangerous.'
With regards,
Dipil Kumar V

From India
dipil
@ Kesava Pillai
Dear Sir
Request you to bring such kind of interesting threads.
Lets us try to make this forum alive as like earlier.
With lots of hope I am writing this.
Awaiting to hear your comments at least.
Thanks & Regards,
Dipil
Electrical Safety Quiz Pdf
From India
shivaji-thawal

Electrical Safety Quiz Pdf Answers

As per BOCW act & rule what is requirement of electrician work?
From India, Mumbai
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Electrical Safety Questions