Sequential Logic Circuits - General Questions Online Exam Quiz
Sequential Logic Circuits - General Questions GK Quiz. Question and Answers related to Sequential Logic Circuits - General Questions. MCQ (Multiple Choice Questions with answers about Sequential Logic Circuits - General Questions
A ripple counter's speed is limited by the propagation delay of:
Options
A : each flip-flop
B : all flip-flops and gates
C : the flip-flops only with gates
D : only circuit gates
To operate correctly, starting a ring counter requires:
Options
A : clearing all the flip-flops
B : presetting one flip-flop and clearing all the others
C : clearing one flip-flop and presetting all the others
D : presetting all the flip-flops
What type of register would shift a complete binary number in one bit at a time and shift all the stored bits out one bit at a time?
Options
A : PIPO
B : SISO
C : SIPO
D : PISO
Synchronous counters eliminate the delay problems encountered with asynchronous (ripple) counters because the:
Options
A : input clock pulses are applied only to the first and last stages
B : input clock pulses are applied only to the last stage
C : input clock pulses are not used to activate any of the counter stages
D : input clock pulses are applied simultaneously to each stage
One of the major drawbacks to the use of asynchronous counters is that:
Options
A : low-frequency applications are limited because of internal propagation delays
B : high-frequency applications are limited because of internal propagation delays
C : Asynchronous counters do not have major drawbacks and are suitable for use in high- and low-frequency counting applications.
D : Asynchronous counters do not have propagation delays, which limits their use in high-frequency applications.
Which type of device may be used to interface a parallel data format with external equipment's serial format?
Options
A : key matrix
B : UART
C : memory chip
D : serial-in, parallel-out
When the output of a tri-state shift register is disabled, the output level is placed in a:
Options
A : float state
B : LOW state
C : high impedance state
D : float state and a high impedance state
A comparison between ring and johnson counters indicates that:
Options
A : a ring counter has fewer flip-flops but requires more decoding circuitry
B : a ring counter has an inverted feedback path
C : a johnson counter has more flip-flops but less decoding circuitry
D : a johnson counter has an inverted feedback path
A sequence of equally spaced timing pulses may be easily generated by which type of counter circuit?
Options
A : shift register sequencer
B : clock
C : johnson
D : binary
What is meant by parallel-loading the register?
Options
A : Shifting the data in all flip-flops simultaneously
B : Loading data in two of the flip-flops
C : Loading data in all four flip-flops at the same time
D : Momentarily disabling the synchronous SET and RESET inputs
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