Shift Registers - General Questions Online Exam Quiz
Shift Registers - General Questions GK Quiz. Question and Answers related to Shift Registers - General Questions. MCQ (Multiple Choice Questions with answers about Shift Registers - General Questions
On the fifth clock pulse, a 4-bit Johnson sequence is Q 0 = 0, Q 1 = 1, Q 2 = 1, and Q 3 = 1. On the sixth clock pulse, the sequence is ________.
Options
A : Q 0 = 1, Q 1 = 0, Q 2 = 0, Q 3 = 0
B : Q 0 = 1, Q 1 = 1, Q 2 = 1, Q 3 = 0
C : Q 0 = 0, Q 1 = 0, Q 2 = 1, Q 3 = 1
D : Q 0 = 0, Q 1 = 0, Q 2 = 0, Q 3 = 1
The bit sequence 0010 is serially entered (right-most bit first) into a 4-bit parallel out shift register that is initially clear. What are the Q outputs after two clock pulses?
Options
A : 0000
B : 0010
C : 1000
D : 1111
What is a shift register that will accept a parallel input, or a bidirectional serial load and internal shift features, called?
Options
A : tristate
B : end around
C : universal
D : conversion
On the third clock pulse, a 4-bit Johnson sequence is Q 0 = 1, Q 1 = 1, Q 2 = 1, and Q 3 = 0. On the fourth clock pulse, the sequence is ________.
Options
A : Q 0 = 1, Q 1 = 1, Q 2 = 1, Q 3 = 1
B : Q 0 = 1, Q 1 = 1, Q 2 = 0, Q 3 = 0
C : Q 0 = 1, Q 1 = 0, Q 2 = 0, Q 3 = 0
D : Q 0 = 0, Q 1 = 0, Q 2 = 0, Q 3 = 0
A bidirectional 4-bit shift register is storing the nibble 1101. Its input is HIGH. The nibble 1011 is waiting to be entered on the serial data-input line. After three clock pulses, the shift register is storing ________.
Options
A : 1101
B : 0111
C : 0001
D : 1110
How can parallel data be taken out of a shift register simultaneously?
Options
A : Use the Q output of the first FF.
B : Use the Q output of the last FF.
C : Tie all of the Q outputs together.
D : Use the Q output of each FF.
What does the output enable do on the 74395A chip?
Options
A : It determines when data can be loaded.
B : It forces all outputs to go HIGH.
C : It forces all outputs to go LOW.
D : It activates the three-state buffer.
To operate correctly, starting a ring shift counter requires:
Options
A : clearing all the flip-flops
B : presetting one flip-flop and clearing all others
C : clearing one flip-flop and presetting all others
D : presetting all the flip-flops
In a 6-bit Johnson counter sequence there are a total of how many states, or bit patterns?
Options
A : 2
B : 6
C : 12
D : 24
A modulus-12 ring counter requires a minimum of ________.
Options
A : 10 flip-flops
B : 12 flip-flops
C : 6 flip-flops
D : 2 flip-flops
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