Have you heard the ‘Khadak Khadak’ sound : answer

3 min read

The correct answer is (c) December

The correct answer is c) December, that is a month of winters. The “Khadak-khadak” sound is made when the wheels cross the gap between the joint of the rails. These gaps are left to allow the expansion during the summer days. The gaps will widen the most during the winter month, due to contraction of the metal rails. When the metal wheel crosses the gap in the month of winter, the sound produced will be louder as compared to the month of summer.
 
We intended to ask in which month, loudest sound is produced. As in the question, we have not mentioned the conditions which will define how a sound is heard.
Also, as the target audience is in the northern hemisphere, we assume December to be the winter month.
 
Considering, these points, we can agree that option D, could also be the correct answer if these arguments are taken into consideration.

Apply for Position

Upload your Resume/CV *

Rules & Instructions:

A) INSTRUCTIONS FOR CREATING AND UPLOADING VIDEO

  1. Create a video of less than 5 minutes.
  2. Size of video should be less than 100MB while uploading.
  3. You can use one Voucher Code to upload video only once.
  4. You can use animations and other visual effects to help improve presentation.
  5. The video should have the student who won the voucher as the primary explainer.

B) JUDGING CRITERIA

1. Explanation (10 points)
(i) Accuracy of explanation or relevant explanation of the given challenge.
(ii) Explanation of ALL the questions asked.

2. Presentation (5 points)
(i) Video should not exceed given time constraints.
(ii) It should be understandable.
(iii) Good use of props and effects.

3. Early-bird
(i) The first 1000 entries will get bonus points for submitting early.

Note: Open Door will not entertain requests to share scores.