Periyar University 2008 B.E Electronics

Ans: 1279





37) A 2D array is declared as A [9, 7] and every element requires two byte. If A [1, 1] is stored in 3000. obtain the memory of A [8, 5]?

Ans: 3106





38) 1 circular array is provided (means the memory allocation takes place like a circular fashion) dimension (9X7) .starting address is 3000.find the address of (2, 3)

Ans: 555





39) The size of a program is N. And the memory occupied by the program is provided by M = square root of 100N. If the size of the program is increased by 1% then how much memory now occupied?

Sol: N is increased by 1%

Therefore new value of N=N + (N/100)

=101N/100

M=sqrt (100 * (101N/100))

Hence, we get

M=sqrt (101 * N)

Ans: 0. five %( =SQRT 101N)





40) A bus started from bus stand at 8.00a m and after 30 min staying at destination, it returned back to the bus stand. The destination is 27 miles from the bus stand. The speed of the bus 50 percent fast speed. At what time it retur4ns to the bus stand.

Sol: (this is the step by step solution :)

A bus cover 27 mile with 18 mph in =27/18= one hour 30 min.

And it wait at stand =30 min.

After this speed of return increase by 50% so 50%of 18 mph=9mph

Total speed of returning=18+9=27

Then in return it take 27/27=1 hour

Then total time in journey=1+1:30+00:30 =3 hour

So it will come at 8+3 hour=11 a.m.

So Ans==11 a.m


41) A Flight takes off at two A.M from northeast direction and travels for 11 hours to reach the destination which is in North West direction. provided the latitude and longitude of source and destination. obtain the local time of destination when the flight reaches there?

Ans: seven AM or 1.00 PM




42) My flight takes of at 2am from a place at 18N 10E and landed 10 Hrs later at a place with coordinates 36N70W. What is the local time when my plane landed?
a) 6:00 am b) 6:40am c) 7:40 d) 7:00 e) 8:00

(Hint: Every one deg longitude is equal to four minutes. If west to east add time else subtract time)

Ans: 8:00

Earning:   Approval pending.