Shift Registers Questions and Answers
Shift Registers are sequential logic circuits used for data storage and transfer in digital systems. This topic includes digital electronics aptitude questions and answers on serial-in serial-out, parallel-in parallel-out, and bidirectional shift registers. These questions, frequently asked in GATE, DRDO, and ISRO exams, test your conceptual clarity and circuit understanding. Practice these Shift Registers questions with answers to enhance your digital electronics knowledge and improve your competitive exam readiness.
Shift Registers
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69 questions
51. When the output of a tristate shift register is disabled, the output level is placed in a:
- float state
- LOW state
- high-impedance state
- float or high-impedance state
53. There are several ways to construct a stepper motor to achieve digitally controlled stepping action. One possibility is to construct four stator coils set up as four pole pairs, each 45° apart and using three ferromagnetic pairs spaced 60° apart.
- TRUE
- FALSE
54. A parallel load operation is asynchronous, so it is not dependent on the clock.
- TRUE
- FALSE
55. A ferromagnetic material is one that forms a resistance to magnetic fields.
- TRUE
- FALSE
56. A counter has a specified sequence of states, but a shift register does not.
- TRUE
- FALSE
57. In a 74164 8-bit shift register, in order for the parallel data output to be synchronously loaded on the negative clock edge, the parallel enable input is LOW.
- TRUE
- FALSE
58. Practically every possible load, shift, and conversion operation is available in a shift register IC.
- TRUE
- FALSE
59. Using separate serial inputs for shifting left or shifting right is a major difference between the 74194 and other shift registers.
- TRUE
- FALSE