P.T.O.

10201 `| । ‪800

6. Sketches of a screw driver and a normal screw head are given below :

t
SCREW DNVER

This screw cmald be tightened or loosened using the screw driver. Now
design the head of such a screw that could only be tightened but not
loosened by this screw driver.

PART-B
Each question in Part B carries 10 marks. .

7. Without using an air-conditioner, blower or exhaust fan, design a natural system
of heat removal from the rooms of a building and simultaneous inflow of fresh
air from out?ide into the room. Prepare the necessary sketches and justify your
answer.

8. Develop and sketch anyone design concept of a mechanical system to drive
a generator for energy harvesting by exploiting heavy traffic.