Question

What is the appropriate step to prevent a weak thatched roof from blowing off when strong winds are blowing over it?

• A. Open the doors and windows of the hut.
• B. Close the doors and windows of the hut.
• C. Make holes in the roof.
• D. Burn wood inside.

Answer 1

The correct option is A Open the doors and windows of the hut.

When winds blow over a weak thatched roof, it creates a low pressure region over it. As there is no significant wind movement inside the hut, a high pressure region is already inside the hut. Wind flows from high pressure to low pressure, it causes the roof to blow off.
Opening the doors and windows reduces the pressure difference and prevents the roof from being blown off.