Electronics and Communication Engineering - Electronic Devices and Circuits

16.
A16 X 216 __________ .
1616
1516
1416
1316
Answer: Option
Explanation:

A16 = 10, 216 = 2, 10 x 2 = 20 in decimal = 14 in hexadecimal.


17.
For the binary number 11101000, the equivalent hexadecimal number is
F 9
F 8
E 9
E 8
Answer: Option
Explanation:

11 01000 = 128 + 64 + 32 + 8 = 232 in decimal = E 8 in hexadecimal.


18.
AECF116 + 15ACD16 = __________ .
C47BB16
C47BE16
A234F16
A111116
Answer: Option
Explanation:

Convert to decimal, add and change the result to hexadecimal.


19.
A XOR gate has inputs A and B and output Y. Then the output equation is
Y = AB
Y = AB + A B
Y = A B + A B
Y = A B + A B
Answer: Option
Explanation:

XOR gate recognises odd number of 1's.


20.
Wired AND connection can be used in TTL with totem pole output.
True
False
Answer: Option
Explanation:

F, No it cannot be used.