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Thursday, July 28, 2011

Computer Science Questions Previously asked by PSC

Q. The statements char c[ ] = " there!"; putchar(c); will result in printing: 
(A) There
(B) there.
(C) there!
(D) "there!"


Q. Total number of nodes in a 3-stage ternary tree will be : 
(A) 12
(B) 5
(C) 13
(D) 15

Q. The power ratio of 1 in dBs will be : 
(A) 10
(C) 1
(B) 0
(D) 100

Q. The units for telephone traffic is : 
(A) Erlangs
(B) Poissons
(C) Bells
(D) N one of the above

Q.   The number of full adders needed to implement one bit serial adder is :  
(A)   2  
(B)   4  
(C)   8  
(D)   1  

Q.   The supply voltage of ECL gates is :      
 (A)   -5.2V   (B)   +5.2V  
 (C)   -3.3V   (D)   +1.5V  

Q.   Which of the following is not a standard size of floppy diskettes?   
(A)   5.25 in  
(B)   10 in  
(C)   3.5 in  
(D)   8 in  

Q.   The Moore's law is applicable to :      
(A)   Automobile industry  
(B)  Computer industry  
(C)   Cement industry  
(D)   Semiconductor industry
 
Q.   DVD stands for:       
(A)   Digi tal Video Disc  
(B)   Digital Vital Disc  
(C)   Digital Versatile Disc  
(D)   N one of the above  

C and C++ Questions >>

6 comments:

Pratheeksha S said...

answers for these questions please..

Anju Renjith said...

1Q there!
2Q 13
3Q 10
4Q Erlangs
5Q
6Q -5.2V
7Q 10in
8Q Semiconductor industry
9Q Digital Video Disc or Digital versatile disc

Anju Renjith said...

1Q there!
2Q 13
3Q 10
4Q Erlangs
5Q
6Q -5.2V
7Q 10in
8Q Semiconductor industry
9Q Digital Video Disc or Digital versatile disc

Anju Renjith said...

1Q there!
2Q 13
3Q 10
4Q Erlangs
5Q
6Q -5.2V
7Q 10in
8Q Semiconductor industry
9Q Digital Video Disc or Digital versatile disc

PachakaRani said...

Q:3
ans:B, 0(less than zero)
power ratio of 10db is 10
power ratio of 20db is 100

power ratio of 30db is 1000
S/N ratio is expressed in 10 log S/N (base 10)

PachakaRani said...

Q:9 Digital versatile disc