8/18/2019 Logic Design QUESTIONS
1/1
LOGIC DESIGN PROBLEMS
1. A burglar alarm for a car has a normally low switch on each
of four doors. If
any door is opened the output of that switch goes HIGH. The
alarm is set o
with an active-!" output signal. "hat type of gate will provide
this logic#
$. Implement full adder using %&1 '().
*. + bulbs identi,ed as 1$ and *.are there within a room ./ulbs
should turn
!0 in the order *$1*$1*$1 .2esign a logic circuit to obtain
following pattern.
+. 3our chairs A / 4 and 2 are placed in a row. 5ach chair may
be occupied
67l89 or empty 6789. A /oolean function 3 is 7l8 if and only if
there are two or
more ad:acent chairs that are empty.
o Give the truth table de,ning the /oolean function 3
o 5&press 3 as a minterm e&pansion 6standard sum of
product9
o 5&press 3 as a ma&term e&pansion 6standard product
of sum
;. 2esign a synchronous decade counter
. 2esign modulo % or divided by % counter using minimum no?of
@ip@ops.
1.2esign a divided by ; ripple counter.
