SSC Exam > SSC Questions > Third pin in a 3-pin plug is provided so as ...
Start Learning for Free
Third pin in a 3-pin plug is provided so as to____
- a)provide an earth connection
- b)provide a 3-phase supply, when required
- c)provide a spare phase when required
- d)prevent the plug being reversed in the socket
Correct answer is option 'A'. Can you explain this answer?
| FREE This question is part of | Download PDF Attempt this Test |
Verified Answer
Third pin in a 3-pin plug is provided so as to____a)provide an earth ...
Hence, the correct option is (A)
View all questions of this test
Most Upvoted Answer
Third pin in a 3-pin plug is provided so as to____a)provide an earth ...
Answer:
The third pin in a 3-pin plug is provided to provide an earth connection. This is done to ensure safety in electrical appliances and to protect users from electric shock. Let's understand why the earth connection is necessary and how it works.
Why is the earth connection necessary?
- Electrical appliances often have metal parts that can become live due to faults or damage in the wiring.
- If a person touches a live metal part while standing on the ground, they can get an electric shock.
- The earth connection provides a safe path for the current to flow into the ground, preventing the person from getting shocked.
How does the earth connection work?
- The earth pin in the plug is connected to the metal casing of the appliance.
- If a fault occurs and the metal casing becomes live, the current will flow through the earth wire instead of the user's body.
- The earth wire is connected to a metal rod or pipe that is driven deep into the ground, providing a low resistance path for the current to flow into the earth.
- This ensures that the user is protected from electric shock.
Other options and their explanations:
- Option B: Providing a 3-phase supply is not the purpose of the third pin in a 3-pin plug. The plug is designed for single-phase supply.
- Option C: Providing a spare phase is not the purpose of the third pin. The plug is designed for single-phase supply and does not have an extra phase connection.
- Option D: Preventing the plug from being reversed in the socket is not the purpose of the third pin. The design of the plug and socket already ensures proper alignment and prevents reversal.
Therefore, the correct answer is option A, which states that the third pin in a 3-pin plug is provided to provide an earth connection.
The third pin in a 3-pin plug is provided to provide an earth connection. This is done to ensure safety in electrical appliances and to protect users from electric shock. Let's understand why the earth connection is necessary and how it works.
Why is the earth connection necessary?
- Electrical appliances often have metal parts that can become live due to faults or damage in the wiring.
- If a person touches a live metal part while standing on the ground, they can get an electric shock.
- The earth connection provides a safe path for the current to flow into the ground, preventing the person from getting shocked.
How does the earth connection work?
- The earth pin in the plug is connected to the metal casing of the appliance.
- If a fault occurs and the metal casing becomes live, the current will flow through the earth wire instead of the user's body.
- The earth wire is connected to a metal rod or pipe that is driven deep into the ground, providing a low resistance path for the current to flow into the earth.
- This ensures that the user is protected from electric shock.
Other options and their explanations:
- Option B: Providing a 3-phase supply is not the purpose of the third pin in a 3-pin plug. The plug is designed for single-phase supply.
- Option C: Providing a spare phase is not the purpose of the third pin. The plug is designed for single-phase supply and does not have an extra phase connection.
- Option D: Preventing the plug from being reversed in the socket is not the purpose of the third pin. The design of the plug and socket already ensures proper alignment and prevents reversal.
Therefore, the correct answer is option A, which states that the third pin in a 3-pin plug is provided to provide an earth connection.
|
Explore Courses for SSC exam
|
|
Similar SSC Doubts
Third pin in a 3-pin plug is provided so as to____a)provide an earth connectionb)provide a 3-phase supply, when requiredc)provide a spare phase when requiredd)prevent the plug being reversed in the socketCorrect answer is option 'A'. Can you explain this answer?
Question Description
Third pin in a 3-pin plug is provided so as to____a)provide an earth connectionb)provide a 3-phase supply, when requiredc)provide a spare phase when requiredd)prevent the plug being reversed in the socketCorrect answer is option 'A'. Can you explain this answer? for SSC 2024 is part of SSC preparation. The Question and answers have been prepared according to the SSC exam syllabus. Information about Third pin in a 3-pin plug is provided so as to____a)provide an earth connectionb)provide a 3-phase supply, when requiredc)provide a spare phase when requiredd)prevent the plug being reversed in the socketCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for SSC 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Third pin in a 3-pin plug is provided so as to____a)provide an earth connectionb)provide a 3-phase supply, when requiredc)provide a spare phase when requiredd)prevent the plug being reversed in the socketCorrect answer is option 'A'. Can you explain this answer?.
Third pin in a 3-pin plug is provided so as to____a)provide an earth connectionb)provide a 3-phase supply, when requiredc)provide a spare phase when requiredd)prevent the plug being reversed in the socketCorrect answer is option 'A'. Can you explain this answer? for SSC 2024 is part of SSC preparation. The Question and answers have been prepared according to the SSC exam syllabus. Information about Third pin in a 3-pin plug is provided so as to____a)provide an earth connectionb)provide a 3-phase supply, when requiredc)provide a spare phase when requiredd)prevent the plug being reversed in the socketCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for SSC 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Third pin in a 3-pin plug is provided so as to____a)provide an earth connectionb)provide a 3-phase supply, when requiredc)provide a spare phase when requiredd)prevent the plug being reversed in the socketCorrect answer is option 'A'. Can you explain this answer?.
Solutions for Third pin in a 3-pin plug is provided so as to____a)provide an earth connectionb)provide a 3-phase supply, when requiredc)provide a spare phase when requiredd)prevent the plug being reversed in the socketCorrect answer is option 'A'. Can you explain this answer? in English & in Hindi are available as part of our courses for SSC.
Download more important topics, notes, lectures and mock test series for SSC Exam by signing up for free.
Here you can find the meaning of Third pin in a 3-pin plug is provided so as to____a)provide an earth connectionb)provide a 3-phase supply, when requiredc)provide a spare phase when requiredd)prevent the plug being reversed in the socketCorrect answer is option 'A'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of
Third pin in a 3-pin plug is provided so as to____a)provide an earth connectionb)provide a 3-phase supply, when requiredc)provide a spare phase when requiredd)prevent the plug being reversed in the socketCorrect answer is option 'A'. Can you explain this answer?, a detailed solution for Third pin in a 3-pin plug is provided so as to____a)provide an earth connectionb)provide a 3-phase supply, when requiredc)provide a spare phase when requiredd)prevent the plug being reversed in the socketCorrect answer is option 'A'. Can you explain this answer? has been provided alongside types of Third pin in a 3-pin plug is provided so as to____a)provide an earth connectionb)provide a 3-phase supply, when requiredc)provide a spare phase when requiredd)prevent the plug being reversed in the socketCorrect answer is option 'A'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice Third pin in a 3-pin plug is provided so as to____a)provide an earth connectionb)provide a 3-phase supply, when requiredc)provide a spare phase when requiredd)prevent the plug being reversed in the socketCorrect answer is option 'A'. Can you explain this answer? tests, examples and also practice SSC tests.
|
|
Explore Courses for SSC exam
|
|
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
|
© EduRev
|
Education Revolution
|
Follow Us
|
Signup to see your scores
go up within 7 days!
Access 1000+ FREE Docs, Videos and Tests
Takes less than 10 seconds to signup