Q.1

A type of shift register that requires access to the Q outputs of all stages is ________.

  • parallel in/serial out
  • serial in/parallel out
  • serial in/serial out
  • a bidirectional shift register
Q.2

Assume an 8-bit serial in/parallel out shift register needs to be cleared but has no clear input. How many clock cycles are required before a zero applied to the input appears on the QH output?

  • 1
  • 7
  • 8
  • 9
Q.3

An 8-bit serial in/parallel out shift register is clocked at 4 MHz and is used to delay a serial digital signal by 1.25 s. The output that has the proper delay is ________.

  • QE
  • QF
  • QG
  • QH
Q.4

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
Q.5

Practically every possible load, shift, and conversion operation is available in a shift register IC.

  • True
  • False
Q.6

Using separate serial inputs for shifting left or shifting right is a major difference between the 74194 and other shift registers.

  • True
  • False
Q.7

A ring counter is a register in which a certain pattern of 1s and 0s is continuously outputted in parallel.

  • True
  • False
Q.8

A stepper motor makes its rotation in smooth continuous motion.

  • True
  • False
Q.9

Parallel load means to load all flip-flops at the same time.

  • True
  • False
Q.10

Bidirectional means having two states.

  • True
  • False
Q.11

A universal shift register has both serial and parallel input and output capacity.

  • True
  • False
Q.12

The ring and Johnson shift counters are uncommon circuits that are similar to synchronous counters.

  • True
  • False
Q.13

Eight states are in an 8-bit Johnson counter sequence.

  • True
  • False
Q.14

The storage capacity of a register makes it an important type of memory.

  • True
  • False
Q.15

One of the stages in a register consists of a latch.

  • True
  • False
Q.16

A stage is two storage elements in a register.

  • True
  • False
Q.17

The 74194 4-bit bidirectional universal shift register has a wide range of applications.

  • True
  • False
Q.18

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
Q.19

A parallel load operation is asynchronous, so it is not dependent on the clock.

  • True
  • False
Q.20

To transmit parallel data over a serial cable, the data must first go through data conversion to the serial format.

  • True
  • False
0 h : 0 m : 1 s