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WorksheetsDigital Logic Design
Total questions: 20
Worksheet time: 10mins
The output of an exclusive-NOR gate is 1,Which input combination is correct?
A = 1 B = 0
A = 0 B = 1
A = 0 B = 0
none of the above
How many AND gates are required to implement the Boolean expression?
1
2
3
4
In an SR latch built from NOR gates which condition is not allowed?
S=0, R=0
S=0, R=1
S=1, R=0
S=1, R=1
In the toggle mode a JK flip-flop has
J = 0, K = 0
J = 1, K = 1
J = 1, K = 1
J = 1, K = 0
If J = K (J and K are shorted) in a JK flip-flop, what circuit is made
SR Flip Flop
D Flip Flop
T Flip Flop
M S J K Flip Flop
How many clock pulses will be required to completely load serially a 5-bit shift register?
1
5
7
6
On a master-slave flip-flop, when is the master enabled?
when the gate is LOW
when the gate is HIGH
both of the above
neither of the above
A J-K flip-flop is in a "no change" condition when ________
J = 1, K = 1
J = 1, K = 0
J = 0, K = 1
J = 0, K = 0
Which segments of 7-segment display would required to active to display the decimal digit 2?
a, b, d, e, and g
a, b, c, d, and g
a, c, d, f, and g
a, b, c, d, e, and f
How many flip-flops are required to construct a decade counter?
10
8
5
4
How many different states does a 3-bit asynchronous counter have?
2
4
8
10
If 3-input OR gate has 8 input possibilities how many possibilities will result in HIGH output?
1
7
2
8
What is the circuit number of the IC that contains four two-input AND gates in standard TTL?
7402
7408
7432
7486
OR gate with schematic "bubbles" on its inputs performs the same functions as___gate.
NOT
EX-OR
NAND
NOR
Which of the following combinations cannot be combined into K-map groups?
Corners in the same row
Corners in the same column
Diagonal corners
Overlapping combinations
Which of the following memories uses one transistor and one capacitor as basic memory unit?
SRAM
DRAM
Both
None
Which logic family provide minimum power dissipation
TTL
CMOS
ECL
JFET
In Boolean algebra A.A is equal to
A
A²
2A
1
How many input and output required for multiplexer ?
Many input and one output
One input and many output
One input and one output
None of the above
If 4 input MUXes drive a 4 input multiplexer, it results a
16 input MUX
8 input MUX
6 input MUX
4 input MUX
