Tag: safety from lightning

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Questions Related to safety from lightning

Multiple choice physics some natural phenomena safety from lightning lightning safety advanced of lightning

Why is a car or a bus safe place during lightening?

  1. Because it does not rain inside the bus.

  2. Because lightening cannot travel through the glass.

  3. Because a car or a bus is insulated from the Earth.

  4. None of the above.
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

A car or a bus stand on rubber tyres. Rubber being an insulator, the body of car / bus stays separated or insulated from the Earth. So, it does not attract lightening. If we take shelter in a car / bus during lightening, there is no chance to be hit by the lightening.

Multiple choice physics some natural phenomena safety from lightning lightning safety advanced of lightning

When you are in open field or open area and do not have any safe places to hide during thunderstorm what should be done?

  1. Make yourself smallest target.

  2. Squat low on the ground.

  3. Place your hands on your knees with head between the hands.

  4. All of the above.
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

During lightning make yourself smallest target by squat low on the ground and hands on your knees with your head between the hands. This is safe position.

Multiple choice physics some natural phenomena safety from lightning lightning safety advanced of lightning

Which of the following will not cause any harm to us during thunderstorm?

  1. Using phones with cord.

  2. Switching off electric light.

  3. Plugging in electrical appliances.

  4. All will cause harm.
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

During lightning switching off of electric lights does not cause any harm to us. Using phones with cord and plugging in electrical appliances may prove dangerous due to short circuiting  if a thunder strikes nearby.

Multiple choice physics some natural phenomena safety from lightning lightning safety advanced of lightning

What should be the length of the metal rod used as lightning conductor?

  1. Shorter than the walls of the building.

  2. Same length or equals.

  3. Taller than the walls of the building.

  4. Nothing specific, can be of any length.
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The lightning conductor should be taller than the walls of the building because lightning gets attracted to the taller targets.

Multiple choice physics some natural phenomena safety from lightning lightning safety advanced of lightning

Other than lightning conductor, what are the objects which indirectly protect building from lightning / thunderstorm?

  1. Metal column used during construction.

  2. Electrical wires in the building.

  3. Water piper in the building.

  4. All of the above.
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The metal columns used during construction, electrical wires and water pipes, all are good conductor and well earthed hence provide earthing to the building.

Multiple choice physics some natural phenomena safety from lightning lightning safety advanced of lightning

Why it is not recommended to touch water metal-pipe lines, electric wires during thunderstorm?

  1. They are good conductors thus may carry charges.

  2. They are insulators and never carry charges.

  3. They may store charges.

  4. This is a myth.
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Metal pipe-lines for carrying water and electrical wires are good conductors and carry charges. If a lightning strikes the building, there may be chance of electric shocks getting spread through those due to leakage and this could be dangerous for life.