Future Engineer questions (niha)

1)A power unit is there by the bank of the river of 750 meters width. A cable is made from power unit to power a plant opposite to that of the river and 1500mts away from the power unit. The cost of the cable below water is Rs. 15/- per meter and cost of cable on the bank is Rs.12/- per meter. Find the total of laying the cable.?


2. The temperature at Kochi is given by the function: -t2/6+4t+12 where t is the elapsed time since noon. What is the percentage rise (or fall) in temperature between 3.00 PM and 6.00 PM?
(a) 37.9% (b) 32.9% (c) 36% (d) 39% (e) 30%

3. A Two-dimensional array X(7,9) is stored linearly column-wise in a computer's memory. Each element requires 8 bytes for storage of the value. If the first byte address of X(1,1) is 3000, what would be the last byte address of X(2,3)?
(a) 3247 (b) 3567 (c) 3127 (d) 3225 (e) 3765

4. A file is transferred from one location to another in 'buckets'. The size of the bucket is 10 kilobytes. The bucket gets filled at the rate of 0.0001 kilobytes per millisecond. The transmission time from sender to receiver is 10 milliseconds per bucket. After the receipt of the bucket the receiver sends an acknowledgement that reaches sender in 100 milliseconds. Assuming no error during transmission, write a formula to calculate the time taken in seconds to successfully complete the transfer of a file of size N kilobytes.
(a) 10.11 N (b) 11.011 N (c) 11.01 N (d) 10.101 N (e) 10.011 N

5.In a mixture, R is 2 parts, S is 1 part. In aoder to make S to 25% of the mixture, how much R is to be added?

6.Three companies working independently and get savings 10%, 20%, 25%. if the companies work just opposite then what will be the net saving?


7.If A, B and C are the mechanisms used separately to reduce the wastage of fuel by 30%, 20% and 10%. What will be the fuel economy if they were used combined.

8. Decimal no 319 is equal to 1234.This 1234 belongs to which Number systems

9. In which of the system, decimal number 384 is equal to 1234?
10.The cost of one pencil, two pens and four erasers is Rs.22 while the cost of five pencils, four pens and two erasers is Rs.32.How much will three pencils, three pens and three erasers cost?


11. There is a circular pizza with negligible thickness that is cut into 'x' pieces by 4 straight line cuts. What is the maximum and minimum value of 'x' respectively?
a) 12,6 b) 11,6 c) 12,5 d) 11,5