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CIT292

COURSE TITLE:COMPUTER LABORATORY I

1 / 44

There are basically four main types of flip-flops: D, S-R, J-K AND_____

1) W

2) T

3) P

2 / 44

A single latch or flip-flop can store only_____ of information

1) 1 bit

2) 2 bit

3) 4 bit

3 / 44

In electronic technology, GAL is a common acronym for_____

1) Generic Array Lope

2) Generic Array Logic

3) Generic Array Log

4 / 44

______ number can easily converted to an octal
Binary

1) Binary

2) hex

3) octa

5 / 44

_____is a method used in analysis and design of digital components or
systems

1) TRUTH table

2) Boolean algebra

3) Logic gate

6 / 44

One basic piece of test equipment used in digital troubleshooting is
the_____

1) Logic Probe

2) Logic gate

3) all of the above

7 / 44

When a_____ is enabled, its state changes immediately when its input
changes

1) Patch

2) all of the above

3) Latch

8 / 44

A Boolean variable is a quantity that may, at different times, be equal to
either____
0 or 1

1) 1

2) 0

3) 0 or 1

9 / 44

When several operators are used in the same expression, the precedence
given to the operators are, from_____ to lowest

1) medium

2) Highest

3) low

10 / 44

The D-flip flop is also referred to as the______

1) Patch

2) Latch

3) all of the above

11 / 44

The decimal number system is a_____ system

1) single

2) Positional

3) wide

12 / 44

____are set to list the possible inputs and find their corresponding
inputs

1) histogram

2) chart

3) truth tables

13 / 44

A_____ is an IC that can be programmed by the userto execute a complex
logic function.

1) LCD

2) PLD

3) all of the above

14 / 44

The 4-bit input encodes the binary representation of a______ digit

1) Decimal

2) binary

3) hexa

15 / 44

The NAND gate is derived from an AND gate and_____ connected in series

1) OR

2) Inverter

3) AND

16 / 44

Larger subcubes require fewer______ because of fewer variables in the
product term

1) OR gates

2) NAND gates

3) AND gates

17 / 44

The term______ implies the logical relationship between the inputs and
the outputs.

1) Function

2) Lc Function

3) Logic Function

18 / 44

SET-CLEAR latch can be called a______

1) SET-RESET latch

2) RESET latch

3) RESET latch

19 / 44

A____ is a product term that contains all the variables used in a function

1) Minterm

2) Maxterm

3) none of the above

20 / 44

In order to change the state for a bistable element, we need to add
external inputs called______ to the circuit

1) T latch

2) D latch

3) RS latch

21 / 44

The acronym IEEE stands for_____

1) Institute of Electronics Engineers

2) none of the above

3) Institute of Electrical and Electronics Engineers

22 / 44

A______ is a term with either a single variable, or two or more variables
ORed together

1) Sum term

2) Add term

3) all of the above

23 / 44

The expression for the AND gate output is written_____

1) A+B

2) A.B

3) AB'

24 / 44

The advantage sequential circuits have over combinational circuits
is_____

1) accuracy

2) Timing

3) speed

25 / 44

_____ is used as a graphical representation of truth table in digital logic

1) Karnaugh map

2) none of the above

3) naugh map

26 / 44

The main disadvantage of asynchronous counters over synchronous is
their_____ delay

1) none of the above

2) PropagATION

3) Propaganda

27 / 44

____ gates are widely employed and can be used to make other logic gates

1) AND

2) NAND

3) OR

28 / 44

The Quine-McCluskey or tabulation method for reducing an equation is
ideal for_____ the computer

1) Programming

2) Debuging

3) testing

29 / 44

Larger subcubes require fewer_____ because of fewer variables in the
product term

1) OR gate

2) NAND gates

3) AND gates

30 / 44

When the hours counter reaches 12, it will be reset to zero by the_____
gate

1) AND

2) OR

3) NAND

31 / 44

The Karnaugh map method is an easy way for_____ an equation manually

1) all of the above

2) Resetting

3) Reducing

32 / 44

The operation of an OR gate can be described as a Boolean_____

1) Addition

2) Subtraction

3) Multiplication

33 / 44

The major differences in these flip-flop types are in the number
of______they have and how they change states

1) all of the above

2) output

3) Inputs

34 / 44

The universal measuring instrument used extensively in computer
laboratory is the____

1) Cathode Ray Tube

2) Cathode Ray Crystal

3) Cathode Ray Oscilloscope

35 / 44

_______ is concerned with the interconnection of digital components and
modules

1) Digital circuit

2) Digital Logic

3) digital output

36 / 44

To convert a binary number to octal, we group the bits into groups
of______

1) two

2) Threes

3) four

37 / 44

The exclusive-OR gate can be constructed using AND, OR and_____ gate

1) NAND gates

2) all of the above

3) NOT

38 / 44

The most universally used logic gate is the_____ gates

1) OR

2) NAND

3) AND

39 / 44

The AND gate output is equal to the AND product of the_____ inputs.

1) pattern

2) Logic

3) NAND

40 / 44

A_____ is one whose output will change bits state simultaneously,
without any ripple.

1) ASynchronous counter

2) all of the above

3) Synchronous counter

41 / 44

By looking at______one is able to know the output of any possible
combination

1) truth tables

2) real tables

3) excel tables

42 / 44

Whenever an_____ is present in a logic circuit diagram, its output
expression is simply equal to the input expression with a bar over it

1) Inverter

2) NAND

3) OR

43 / 44

Boolean_____ and variable are allowed to have only two possible values

1) variable

2) character

3) Constants

44 / 44

Boolean_______ are rules that can help us simplify logic expressions

1) law

2) principle

3) Theorem

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