SNAP 2008 Question Paper

Option A: The reliability has not been compared to any other component. Hence A is incorrect.

Option B: Capacitors have more failure rate than picture tubes. Hence B is incorrect.

Option C: Picture tubes have the least failure rate among all components. Hence C is incorrect.

Option D: Hybrid Micro circuits have the most failure rate. Hence, they are the least reliable. 

The failure rate of signal devices = 16

After increasing failure rate by 25%, 16(1+25/100) = 20

The failure rate of capacitors is 20. Hence B is the answer.

The lowest priority for investing in any changes or additions to the component manufacturing units can be given to the components which have the lowest failure rates. Here, pictures tubes and signal devices have lowest failure rate amongst all the components.

The failure rate of Integrated Circuit Board per 1000 is 30. Hence for 400, the failure will be (30*400)/1000=12

The failure rate of Capacitors per 1000 is 20. Hence for 240, the failure will be (20*240)/1000= 5 (Approximately)

The failure rate of Printed Circuit Board per 1000 is 33. Hence for 120, the failure will be (33*120)/1000= 4 (Approximately)

Hence 12,5,4 is the answer.

Assume the height of water in the cylinder = h

Then the volume of water on the roof = 90000 square cm * 0.01 cm = 900 cubic cm

For the cylinder, we have the volume as base of area*height= 900h cubic cm.

=> 900 = h*900

=> h = 1 cm