Q 18: Can this fan make us feel hot? Winners Announced

For MTLT#18 we asked you this question,

Fans in our household rotate in counter clockwise direction. We feel cool breeze hitting us when we sit under a fan.

What happens if fan rotates in clockwise direction?

A) We will feel hot breeze hitting us

(B) We will feel more cool breeze hitting us

(C) We will feel same as before

(D) We will not feel a gush of air coming from the direction of fan

Correct answer and explanation:

(D) We will not feel a gush of air coming from the direction of fan

In general, hot air is light hence trapped near ceiling. When fan rotates counter clockwise, cool air is pushed downwards. Hence, we feel cool when we stand under a fan irrespective of the temperature of the room. If fan moves clock wise, the hot air which is trapped near ceiling is pushed towards the walls and reaches floor hence the room feels warmer than the existing temperature of the room. But under the fan, we won't feel any gush of air coming from the direction of fan.

-KLE Nagarbhavi

How school leaders responded?

Lucky Draw Winners of MTLT#18:

1. Bappa Das, Star Public School, Meghalaya 👏

2. Sunir Nagi, Pallavi model school Alwal 👏

3. Dipen Singh, St. Edmund’s Jaipur 👏

Lucky Draw Winners of MTLT#17:

1. Jaya Bhardwaj, Hansraj Public school, Panchkula 👏

2. Dilip Kumar, Star Public School, Meghalaya 👏

3. Vipul Ghanva, Jay International School, Rajkot, Gujarat 👏

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