Instructions

Answer the following questions based on the information given below

Question 131

From the failure data of electronics components presented here, which statement is true?

Video Solution

Solution

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.

Question 132

Which of the following components has a failure rate 25% more than that of signal devices?

Video Solution

Solution

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.

Question 133

Lowest priority for investing in any changes or additions to the component manufacturing units, in the company's investment plans, may be given to the following:

Video Solution

Solution

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.

Question 134

For the equipments using Integrated Circuit Board: 400, Capacitors: 240 and Printed Circuits boards: 120 to run with minimum downtime, how many spares should be kept in the store respectively?

Video Solution

Solution

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.

Instructions

For the following questions answer them individually

Question 135

The water from a roof, 9 sq. metres in area, flows down to a cylindrical container of 900 cm$$^2$$ base. To what height will the water rise in cylinder if there is a rainfall of 0.1 mm?

Video Solution

Solution

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

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SNAP 2008 Question Paper

From the failure data of electronics components presented here, which statement is true?

Which of the following components has a failure rate 25% more than that of signal devices?

Lowest priority for investing in any changes or additions to the component manufacturing units, in the company's investment plans, may be given to the following:

For the equipments using Integrated Circuit Board: 400, Capacitors: 240 and Printed Circuits boards: 120 to run with minimum downtime, how many spares should be kept in the store respectively?

The water from a roof, 9 sq. metres in area, flows down to a cylindrical container of 900 cm$$^2$$ base. To what height will the water rise in cylinder if there is a rainfall of 0.1 mm?

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