2291 + Mcqs in Digital Electronics McqOptions

1.	Manufacturers of computers utilize 3-bit codes to indicate operations or instructions.
A.	True
B.	False
Answer» C.

Discussion

2.	Octal-to-binary conversion is accomplished by simply replacing each octal digit with its 4-bit binary equivalent.
A.	True
B.	False
Answer» C.

Discussion

3.	The 2's complement of a binary number is derived by adding 1 to the 1's complement.
A.	True
B.	False
Answer» B. False

Discussion

4.	A positive binary number is represented by a 1 sign bit.
A.	True
B.	False
Answer» C.

Discussion

5.	The word size is defined as the number of bits in the binary word that a digital system operates on.
A.	True
B.	False
Answer» B. False

Discussion

6.	The hexadecimal number system consists of 16 digits, 0 15.
A.	True
B.	False
Answer» C.

Discussion

7.	The 1's complement of a binary number is derived by changing 0s to 1s and 1s to 0s.
A.	True
B.	False
Answer» B. False

Discussion

8.	A method of converting decimal to binary is by successive division.
A.	True
B.	False
Answer» B. False

Discussion

9.	A binary number with four digits has a maximum value of 15.
A.	True
B.	False
Answer» B. False

Discussion

10.	Hexadecimal is used to encode BCD numbers.
A.	True
B.	False
Answer» C.

Discussion

11.	A string of 64 bits has 9 bytes.
A.	True
B.	False
Answer» C.

Discussion

12.	3C1D16 = 111100000111012
A.	True
B.	False
Answer» B. False

Discussion

13.	Digital electronics must use a numbering system that has more than ten digits.
A.	True
B.	False
Answer» C.

Discussion

14.	The octal number system consists of eight digits, 0 through 7.
A.	True
B.	False
Answer» B. False

Discussion

15.	The Gray code has a base of eight.
A.	True
B.	False
Answer» C.

Discussion

16.	The hexadecimal equivalent of a decimal number would produce a larger number than the original decimal number.
A.	True
B.	False
Answer» C.

Discussion

17.	ASCII stands for American Standard Code for Information Interchange.
A.	True
B.	False
Answer» B. False

Discussion

18.	Binary-coded-decimal numbers use only binary numbers between 0000 and 1001.
A.	True
B.	False
Answer» B. False

Discussion

19.	A good example of the use of a digital representation of an analog quantity is the audio recording of music.
A.	True
B.	False
Answer» C.

Discussion

20.	A debugging utility is used to take the "bugs" out of a program.
A.	True
B.	False
Answer» B. False

Discussion

21.	The primary advantage of the hexadecimal numbering system is the ease in conversion between the binary and hexadecimal systems.
A.	True
B.	False
Answer» C.

Discussion

22.	When converting from decimal to binary by the repeated division-by-two method, the initial remainder becomes the MSD.
A.	True
B.	False
Answer» C.

Discussion

23.	Digital systems operate only on discrete digits that represent numbers, letters, or symbols.
A.	True
B.	False
Answer» B. False

Discussion

24.	Each position in a decimal multidigit number will have a weighting factor based on a power of only 10.
A.	True
B.	False
Answer» B. False

Discussion

25.	The BCD equivalent of 73 is 01001001.
A.	True
B.	False
Answer» C.

Discussion

26.	The binary number system is fundamental to all digital computers.
A.	True
B.	False
Answer» B. False

Discussion

27.	Repeated division-by-10 is used to convert decimal numbers to binary numbers.
A.	True
B.	False
Answer» C.

Discussion

28.	The largest single BCD digit has a binary value of 15.
A.	True
B.	False
Answer» C.

Discussion

29.	Digital circuitry is the foundation of digital computers and many automated control systems.
A.	True
B.	False
Answer» B. False

Discussion

30.	Many digital electronic systems work in hexadecimal instead of binary.
A.	True
B.	False
Answer» C.

Discussion

31.	In even parity, the sum of the individual bits in the code group must be even.
A.	True
B.	False
Answer» C.

Discussion

32.	In odd parity, 100011010 would pass the parity check.
A.	True
B.	False
Answer» C.

Discussion

33.	The primary advantage of the hexadecimal number system is the ease with which conversion can be made between binary and hexadecimal numbers.
A.	True
B.	False
Answer» B. False

Discussion

34.	A parity bit is used to detect an error in data transmission caused by noise.
A.	True
B.	False
Answer» B. False

Discussion

35.	A binary code decimal representation of a binary number will always have more bits than the binary number.
A.	True
B.	False
Answer» C.

Discussion

36.	The decimal number system consists of the digits 0 10.
A.	True
B.	False
Answer» C.

Discussion

37.	Using separate serial inputs for shifting left or shifting right is a major difference between the 74194 and other shift registers.
A.	True
B.	False
Answer» B. False

Discussion

38.	Most complex digital designs include ________.
A.	standard logic devices
B.	ASIC devices
C.	microprocessor/DSP devices
D.	a mix of different hardware categories
Answer» E.

Discussion

39.	The ring and Johnson shift counters are uncommon circuits that are similar to synchronous counters.
A.	True
B.	False
Answer» C.

Discussion

40.	Shifting a binary number to the left by one position is equivalent to ________.
A.	multiplying by two
B.	multiplying by four
C.	dividing by two
D.	dividing by four
Answer» B. multiplying by four

Discussion

41.	Parallel load means to load all flip-flops at the same time.
A.	True
B.	False
Answer» B. False

Discussion

42.	A 4-bit ring counter is loaded with a single 1. The frequency of any given output is ________.
A.	the same as the clock
B.	twice the clock frequency
C.	one-half the clock frequency
D.	one-fourth the clock frequency
Answer» E.

Discussion

43.	Assume a 4-bit Johnson counter is initially cleared. After the first clock pulse the output is 0001. After the next clock pulse the output will be ________.
A.	0011
B.	0010
C.	1000
D.	0110
Answer» B. 0010

Discussion

44.	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?
A.	1
B.	7
C.	8
D.	9
Answer» D. 9

Discussion

45.	Gated arrays are ________ circuits that offer hundreds of thousands of gates.
A.	VLSI
B.	full custom
C.	LSI
D.	ULSI
Answer» E.

Discussion

46.	The MAX+PLUS II compiler will automatically program a macrocell to borrow up to ________ product terms from each of the 3 adjacent macrocells in the same LAB.
A.	4
B.	5
C.	6
D.	7
Answer» C. 6

Discussion

47.	A complex programmable logic device that consists of multiple SPLD arrays with programmable interconnections is called a ________.
A.	bed-of-nails
B.	boundary scan
C.	CLB
D.	CPLD
Answer» E.

Discussion

48.	In the MAX7000S device up to ________ signals can feed each LAB from the PIA.
A.	0
B.	18
C.	36
D.	72
Answer» D. 72

Discussion

49.	FLEX10K devices are generally classified as ________.
A.	PLDs
B.	FPGAs
C.	HCPLDs
D.	CPLDs
Answer» C. HCPLDs

Discussion

50.	The major structures in the MAX7000S are the ________ and ________.
A.	LUT, PIA
B.	FMUX, LAB
C.	LAB, PIA
D.	LUT, FMUX
Answer» D. LUT, FMUX

Discussion

Explore topic-wise MCQs in Testing Subject.

Manufacturers of computers utilize 3-bit codes to indicate operations or instructions.

Octal-to-binary conversion is accomplished by simply replacing each octal digit with its 4-bit binary equivalent.

The 2's complement of a binary number is derived by adding 1 to the 1's complement.

A positive binary number is represented by a 1 sign bit.

The word size is defined as the number of bits in the binary word that a digital system operates on.

The hexadecimal number system consists of 16 digits, 0 15.

The 1's complement of a binary number is derived by changing 0s to 1s and 1s to 0s.

A method of converting decimal to binary is by successive division.

A binary number with four digits has a maximum value of 15.

Hexadecimal is used to encode BCD numbers.

A string of 64 bits has 9 bytes.

3C1D16 = 111100000111012

Digital electronics must use a numbering system that has more than ten digits.

The octal number system consists of eight digits, 0 through 7.

The Gray code has a base of eight.

The hexadecimal equivalent of a decimal number would produce a larger number than the original decimal number.

ASCII stands for American Standard Code for Information Interchange.

Binary-coded-decimal numbers use only binary numbers between 0000 and 1001.

A good example of the use of a digital representation of an analog quantity is the audio recording of music.

A debugging utility is used to take the "bugs" out of a program.

The primary advantage of the hexadecimal numbering system is the ease in conversion between the binary and hexadecimal systems.

When converting from decimal to binary by the repeated division-by-two method, the initial remainder becomes the MSD.

Digital systems operate only on discrete digits that represent numbers, letters, or symbols.

Each position in a decimal multidigit number will have a weighting factor based on a power of only 10.

The BCD equivalent of 73 is 01001001.

The binary number system is fundamental to all digital computers.

Repeated division-by-10 is used to convert decimal numbers to binary numbers.

The largest single BCD digit has a binary value of 15.

Digital circuitry is the foundation of digital computers and many automated control systems.

Many digital electronic systems work in hexadecimal instead of binary.

In even parity, the sum of the individual bits in the code group must be even.

In odd parity, 100011010 would pass the parity check.

The primary advantage of the hexadecimal number system is the ease with which conversion can be made between binary and hexadecimal numbers.

A parity bit is used to detect an error in data transmission caused by noise.

A binary code decimal representation of a binary number will always have more bits than the binary number.

The decimal number system consists of the digits 0 10.

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

Most complex digital designs include ________.

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

Shifting a binary number to the left by one position is equivalent to ________.

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

A 4-bit ring counter is loaded with a single 1. The frequency of any given output is ________.

Assume a 4-bit Johnson counter is initially cleared. After the first clock pulse the output is 0001. After the next clock pulse the output will be ________.

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?

Gated arrays are ________ circuits that offer hundreds of thousands of gates.

The MAX+PLUS II compiler will automatically program a macrocell to borrow up to ________ product terms from each of the 3 adjacent macrocells in the same LAB.

A complex programmable logic device that consists of multiple SPLD arrays with programmable interconnections is called a ________.

In the MAX7000S device up to ________ signals can feed each LAB from the PIA.

FLEX10K devices are generally classified as ________.

The major structures in the MAX7000S are the ________ and ________.

The major structures in the MAX7000S are the and .