Can You Be A Perfect Electrician?

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| By Rajeev03031985

Rajeev03031985

Community Contributor

Quizzes Created: 1 | Total Attempts: 301

Questions: 10 | Attempts: 302 | Updated: Nov 16, 2023

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Questions and Answers

1.

Electrical Safety-related work practices involve:
- A.
  
  The use of ground fault circuit interrupters
- B.
  
  Verifying power is off before doing repairs
- C.
  
  Keeping proper distance from overhead power lines
- D.
  
  All of the above
Correct Answer
D. All of the above

Explanation
The correct answer is "All of the above" because electrical safety-related work practices involve the use of ground fault circuit interrupters to prevent electrical shocks, verifying power is off before doing repairs to avoid accidental electrocution, and keeping a proper distance from overhead power lines to prevent contact and potential electrical hazards. These practices are essential in ensuring the safety of individuals working with or around electrical systems.

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2.

The following is an example of work that may be performed by a person who is not an electrician at work place:
- A.
  
  Connecting of an extension cord using a standard junction box
- B.
  
  Removal of grounding pin from appliance cord plug
- C.
  
  Use of proper extension cord to power an appliance for a short time
- D.
  
  None of the above
Correct Answer
D. None of the above

Explanation
All of the given tasks involve electrical work that should only be performed by a qualified electrician. Connecting an extension cord using a standard junction box requires knowledge of electrical wiring and safety precautions. Removing the grounding pin from an appliance cord plug is dangerous and can lead to electrical shock hazards. Using a proper extension cord to power an appliance for a short time also requires understanding of electrical specifications and safety guidelines. Therefore, none of the above tasks should be performed by a person who is not an electrician.

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3.

Electrical current can flow through human body.
- A.
  
  True
- B.
  
  False
- C.
  
  Can not say
- D.
  
  None of the above
Correct Answer
A. True

Explanation
Electrical current can flow through the human body because the human body contains water and electrolytes, which can conduct electricity. When a person comes into contact with an electrical source, such as a live wire, the current can pass through the body, potentially causing injury or even death. This is why it is important to be cautious around electricity and take necessary safety precautions to avoid electrical accidents.

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4.

Which of the following are classified as unsafe acts?
- A.
  
  Altering a 3-prong plug to fit a 2-prong outlet
- B.
  
  Using a GFCI
- C.
  
  Working too close to overhead power lines
- D.
  
  A and C
- E.
  
  All of the above
Correct Answer
D. A and C

Explanation
Altering a 3-prong plug to fit a 2-prong outlet and working too close to overhead power lines are classified as unsafe acts. Altering a plug can lead to electrical hazards and increase the risk of electric shock or fire. Working too close to overhead power lines can result in electrocution if proper safety precautions are not followed. Using a GFCI (Ground Fault Circuit Interrupter) is actually a safety measure that helps protect against electrical shocks, so it is not classified as an unsafe act.

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5.

Electric cords connected to equipment may be used for raising or lowering the equipment.
- A.
  
  True
- B.
  
  False
- C.
  
  Can not be determined
- D.
  
  None of the above
Correct Answer
B. False

Explanation
Electric cords are used for transmitting electricity from a power source to equipment, not for raising or lowering the equipment. The function of electric cords is to provide a power supply, not to physically manipulate the position of the equipment. Therefore, the statement that electric cords connected to equipment may be used for raising or lowering the equipment is false.

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6.

Conductive articles of jewelry and clothing can be worn around exposed energized parts.
- A.
  
  True
- B.
  
  False
- C.
  
  Depends upon the weather
- D.
  
  None of the above
Correct Answer
B. False

Explanation
Conductive articles of jewelry and clothing should not be worn around exposed energized parts because they can create a pathway for electrical current to flow through the body, which can lead to electric shock or other serious injuries. It is important to avoid wearing any conductive materials, such as metal, near energized parts to ensure personal safety.

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7.

Extension cords must have the following:
- A.
  
  UL Listing
- B.
  
  Three prongs
- C.
  
  A fuse
- D.
  
  All of the above
Correct Answer
D. All of the above

Explanation
Extension cords must have UL Listing, three prongs, and a fuse. UL Listing ensures that the extension cord meets safety standards and has been tested for potential hazards. Three prongs indicate that the cord is grounded and can provide a safe electrical connection. A fuse acts as a protective device, preventing overloading and potential fires. Therefore, all of the mentioned requirements are necessary for a safe and reliable extension cord.

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8.

At same voltage, DC is more dangerous than AC.
- A.
  
  True
- B.
  
  False
- C.
  
  Can not be determined
- D.
  
  None of the above
Correct Answer
B. False

Explanation
The given statement is false. AC (alternating current) is considered to be more dangerous than DC (direct current) at the same voltage. AC has the ability to cause muscle contractions, making it more likely to freeze a person's grip on a live conductor, making it difficult to let go. Additionally, AC can cause the heart to fibrillate, which can be fatal. On the other hand, DC is less likely to cause muscle contractions and is easier to let go of, making it generally safer than AC.

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9.

Non-conductive head protection should be worn whenever there is a danger of head injury from electric shock.
- A.
  
  True
- B.
  
  False
- C.
  
  Not necessary
- D.
  
  None of the above
Correct Answer
A. True

Explanation
Non-conductive head protection should be worn whenever there is a danger of head injury from electric shock because it helps to prevent the flow of electric current through the head, reducing the risk of electrical burns or other injuries. Conductive materials, such as metal, can conduct electricity and increase the severity of an electric shock. Therefore, wearing non-conductive head protection is necessary to protect against electric shock-related head injuries.

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10.

Severity of an electric shock depends on:
- A.
  
  Path of current through the body
- B.
  
  Amount of current flowing through the body
- C.
  
  Length of time the body is in the circuit
- D.
  
  All the above
Correct Answer
D. All the above

Explanation
The severity of an electric shock depends on multiple factors, including the path of the current through the body, the amount of current flowing through the body, and the length of time the body is in the circuit. All of these factors play a role in determining the extent of injury or harm caused by an electric shock.

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Current Version
Nov 16, 2023

Quiz Edited by
ProProfs Editorial Team
Aug 22, 2018

Quiz Created by
Rajeev03031985

Can You Be A Perfect Electrician?

Electrical Safety-related work practices involve:

The following is an example of work that may be performed by a person who is not an electrician at work place:

Electrical current can flow through human body.

Which of the following are classified as unsafe acts?

Electric cords connected to equipment may be used for raising or lowering the equipment.

Conductive articles of jewelry and clothing can be worn around exposed energized parts.

Extension cords must have the following:

At same voltage, DC is more dangerous than AC.

Non-conductive head protection should be worn whenever there is a danger of head injury from electric shock.

Severity of an electric shock depends on: