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WorksheetsCounter Quiz
Total questions: 22
Worksheet time: 11mins
The function of a counter is to:
Multiply signals
Count clock pulses
Add two numbers
Generate sine waves
A 3-bit binary counter can count from:
0 to 3
0 to 7
0 to 15
0 to 8
A counter with 4 flip-flops can count up to:
7
8
15
16
The output of a counter depends on:
Input data only
Present input and previous states
Only present state
Voltage supply
Another name for asynchronous counter is:
Serial counter
Parallel counter
Ring counter
Shift counter
In an asynchronous counter, the first flip-flop is triggered by:
System clock
Output of last stage
Reset signal
NAND gate
The main disadvantage of ripple counter is:
Needs more hardware
Propagation delay
Cannot divide frequency
Expensive
A mod-10 counter is also called:
Decade counter
Ring counter
Mod-16 counter
Mod-8 counter
The maximum count of an n-bit counter is:
2n
2^n - 1
n^2
n - 1
The reset of a decade counter occurs when output is:
1111
1010
0000
1001
Which flip-flop is most commonly used in counters?
SR FF
JK FF
D FF
RS FF
In synchronous counter, all flip-flops receive:
Different clocks
Same clock pulse
Random pulses
Serial input
A 4-bit down counter counts from:
1111 to 0000
0000 to 1111
0001 to 1000
1000 to 1111
Mod-16 counter requires how many flip-flops?
2
3
4
5
Which counter counts both upward and downward?
Ripple counter
Ring counter
Up/Down counter
Johnson counter
A divide-by-8 counter is also called:
Mod-4 counter
Mod-8 counter
Mod-16 counter
Mod-2 counter
The frequency of Q output in first flip-flop is:
f
f/2
f/4
f/8
The synchronous counter is faster than ripple counter because:
It has more flip-flops
Clock is applied simultaneously to all FFs
It uses SR flip-flops
No propagation delay
Which of the following is NOT a type of counter?
Up counter
Down counter
Shift counter
Frequency counter
A Mod-6 counter requires how many states?
3
6
4
5
The number of flip-flops required for Mod-32 counter is:
4
5
6
7
Which counter is used in digital clocks?
Ring counter
Decade counter (BCD)
Synchronous up counter
Asynchronous counter
