Digital Electronics sample paper for C-DOT

Digital Electronics sample paper for C-DOT

Q. How many select input lines are required for a one-to-sixteen Demultiplexer?

a) 8
b) 3
c) 2
d) 4

Q. The half adder has the output is in the form of

a) Sum and carry
b) Sum
c) Carry
d) None of the above

Q. How many digits are added at a time by a full adder circuit?

a) 1
b) 2
c) 3
d) 4

Q. How many half adders are required to form a 4 bit adder?

Q. How many gates are required to form a 4 bit adder?

Q. Write Boolean equation for any given digital circuit.

Q. Design a Divide-by-3 Counter having 50% duty cycle.