Winds, Storms, Cyclones

In which year was Orissa hit by a cyclone?

• 1999

• 2000

• 2001

• 2004

Leaves of trees, banner or flags flutter when wind is blowing. Why?

• Air occupies space

• Air is a mixture of gases

• Air exerts pressure

• Air is colourless

When we blow over a paper strip it goes upward as shown in the figure given. why?

• Blowing over the paper reduces the air pressure above the strip

• Blowing over the paper increases the air pressure above the strip

• None of these is a correct reason

• The strip will not go upward at all

Following are precautions one must take in case a storm is accompanied by lightning.

(i) Do not take shelter under a tree.

(ii) Do not take shelter under an umbrella with a metallic end.

(iii) Do not take shelter in open garages, storage sheds, etc.

(iv) Do not take shelter in a bus in the open.

Which one of these is not correct?

• (i)

• (ii)

• (iii)

• (iv)

Which of the following places is most likely to be affected by a cyclone?

• Mumbai

• Puri

• Goa

• Porbandar

A fire alarm usually detects smoke in case of fire. Where should such an alarm be placed in a room?

• Near the door

• On the floor

• On any wall

• On the ceiling

The winds from oceans carry water and bring rain. These winds are called

• Typhoon

• Monsoon

• Cyclone

• None of these

What is a cyclone?

• Winds from the oceans carrying water

• Very low pressure system with very high speed winds revolving around it

• Dark funnel shaped cloud that reaches from the sky to the ground

• None of these

Pick the odd one out

• Cyclone

• Hurricane

• Monsoon

• Typhoon

A cyclone warning can be issued

• 48 hours in advance

• 12 hours in advance

• 6 hours in advance

• 24 hours in advance