Question # 1 of 10 ( Start time: 07:50:01 PM ) Total Marks: 1
A counter is implemented using three (3) flip-flops, possibly it will have ________ maximum output status.
Select correct option:
3
7
8 ok
15
Question # 2 of 10 ( Start time: 07:50:36 PM ) Total Marks: 1
If a circuit suffers “Clock Skew “ problem, the output of circuit can’t be guarantied.
Select correct option:
True ok
False
Question # 3 of 10 ( Start time: 07:50:46 PM ) Total Marks: 1
When the both inputs of edge-triggered J-K flop-flop are set to logic zero _________
Select correct option:
The flop-flop is triggered
Q=0 and Q’=1
Q=1 and Q’=0 ok
The output of flip-flop remains unchanged
Question # 4 of 10 ( Start time: 07:52:11 PM ) Total Marks: 1
A positive edge-triggered flip-flop changes its state when ________________
Select correct option:
Enable input (EN) is set
Preset input (PRE) is set
Low-to-high transition of clock ok
High-to-low transition of clock
Question # 5 of 10 ( Start time: 07:52:36 PM ) Total Marks: 1
We have a digital circuit. Different parts of circuit operate at different clock frequencies (4 MHZ, 2 MHZ and 1 MHZ), but we have a single clock source having a fix clock frequency (4MHZ), to supply the required frequency to each part of circuit, we can get help by using ___________
Select correct option:
Using S-R Flop-Flop
D-flipflop
J-K flip-flop ok
T-Flip-Flop
Question # 6 of 10 ( Start time: 07:53:36 PM ) Total Marks: 1
A modulus-14 counter has fourteen states requiring_____________
Select correct option:
14 Flip Flops
14 Registers
4 Flip Flops
4 Registers
Question # 7 of 10 ( Start time: 07:54:59 PM ) Total Marks: 1
The minimum time required for the input logic levels to remain stable before the clock transition occurs is known as the ___________
Select correct option:
Set-up time ok
Hold time
Pulse Interval time
Pulse Stability time (PST)
Question # 8 of 10 ( Start time: 07:55:21 PM ) Total Marks: 1
In a 4-bit binary counter, the next state after the terminal count in the DOWN mode is ____________
Select correct option:
0000
1111 ok
0001
10000
Question # 9 of 10 ( Start time: 07:55:48 PM ) Total Marks: 1
________ flip-flops are obsolete now.
Select correct option:
Edge-triggered
Master-Slave ok
T-Flipflop
D-Flipflop
Question # 10 of 10 ( Start time: 07 :56:23 PM ) Total Marks: 1
A mono -stable device only has a single stable state
Select correct option:
True ok
False
