Question 1

If two inputs are active on a priority encoder, which will be coded on the output?

Accepted Answer

A) the higher value 
B) the lower value 
C) neither of the inputs 
D) both of the inputs 
A) the higher value 
B) the lower value 
C) neither of the inputs 
D) both of the inputs A

Question 2

An identify comparator is defined as a digital comparator which has______________

Accepted Answer

A) only one output terminal 
B) two output terminals 
C) three output terminals 
D) no output terminal 
A) only one output terminal 
B) two output terminals 
C) three output terminals 
D) no output terminal A

Question 3

A magnitude comparator is defined as a digital comparator which has______________

Accepted Answer

A) only one output terminal 
B) two output terminals 
C) three output terminals 
D) no output terminal 
A) only one output terminal 
B) two output terminals 
C) three output terminals 
D) no output terminal C

Question 4

How many types of digital comparators are?

Accepted Answer

A) 1 
B) 2 
C) 3 
D) 4 
A) 1 
B) 2 
C) 3 
D) 4

Question 5

TTL 74LS85 is a______________

Accepted Answer

A) 1-bit digital comparator 
B) 4-bit magnitude comparator 
C) 8-bit magnitude comparator 
D) 8-bit word comparator 
A) 1-bit digital comparator 
B) 4-bit magnitude comparator 
C) 8-bit magnitude comparator 
D) 8-bit word comparator

Question 6

How is an encoder different from a decoder?

Accepted Answer

A) the output of an encoder is a binary code for 1-of-n input 
B) the output of a decoder is a binary code for 1-of-n input 
C) the output of an encoder is a binary code for n-of-1 output 
D) the output of a decoder is a binary code for n-of-1 output 
A) the output of an encoder is a binary code for 1-of-n input 
B) the output of a decoder is a binary code for 1-of-n input 
C) the output of an encoder is a binary code for n-of-1 output 
D) the output of a decoder is a binary code for n-of-1 output

Question 7

The discrepancy of 0 output due to all inputs being 0 or D0, being 0 is resolved by using additional input known as______________

Accepted Answer

A) enable 
B) disable 
C) strobe 
D) clock 
A) enable 
B) disable 
C) strobe 
D) clock

Question 8

How many inputs will a decimal-to-BCD encoder have?

Accepted Answer

A) 4 
B) 8 
C) 10 
D) 16 
A) 4 
B) 8 
C) 10 
D) 16

Question 9

In a multiplexer, the selection of a particular input line is controlled by______________

Accepted Answer

A) data controller 
B) selected lines 
C) logic gates 
D) both data controller and selected lines 
A) data controller 
B) selected lines 
C) logic gates 
D) both data controller and selected lines

Question 10

What is the function of an enable input on a multiplexer chip?

Accepted Answer

A) to apply vcc 
B) to connect ground 
C) to active the entire chip 
D) to active one half of the chip 
A) to apply vcc 
B) to connect ground 
C) to active the entire chip 
D) to active one half of the chip

Question 11

Which is the major functioning responsibility of the multiplexing combinational circuit?

Accepted Answer

A) decoding the binary information 
B) generation of all minterms in an output function with or-gate 
C) generation of selected path between multiple sources and a single destination 
D) encoding of binary information 
A) decoding the binary information 
B) generation of all minterms in an output function with or-gate 
C) generation of selected path between multiple sources and a single destination 
D) encoding of binary information

Question 12

How many OR gates are required for an octal-to- binary encoder?

Accepted Answer

A) 3 
B) 2 
C) 8 
D) 10 
A) 3 
B) 2 
C) 8 
D) 10

Question 13

How many select lines would be required for an 8- line-to-1-line multiplexer?

Accepted Answer

A) 2 
B) 4 
C) 8 
D) 3 
A) 2 
B) 4 
C) 8 
D) 3

Question 14

If the number of n selected input lines is equal to 2^m then it requires____________select lines.

Accepted Answer

A) 2 
B) m 
C) n 
D) 2n 
A) 2 
B) m 
C) n 
D) 2n

Question 15

What is a multiplexer?

Accepted Answer

A) it is a type of decoder which decodes several inputs and gives one output 
B) a multiplexer is a device which converts many signals into one 
C) it takes one input and results into many output 
D) it is a type of encoder which decodes several inputs and gives one output 
A) it is a type of decoder which decodes several inputs and gives one output 
B) a multiplexer is a device which converts many signals into one 
C) it takes one input and results into many output 
D) it is a type of encoder which decodes several inputs and gives one output

Question 16

How many OR gates are required for a Decimal-to- bcd encoder?

Accepted Answer

A) 2 
B) 10 
C) 3 
D) 4 
A) 2 
B) 10 
C) 3 
D) 4

Question 17

If we record any music in any recorder, such types of process is called______________

Accepted Answer

A) multiplexing 
B) encoding 
C) decoding 
D) demultiplexing 
A) multiplexing 
B) encoding 
C) decoding 
D) demultiplexing

Question 18

How many outputs will a decimal-to-BCD encoder have?

Accepted Answer

A) 4 
B) 8 
C) 12 
D) 16 
A) 4 
B) 8 
C) 12 
D) 16

Question 19

A digital multiplexer is a combinational circuit that selects______________

Accepted Answer

A) one digital information from several sources and transmits the selected one 
B) many digital information and convert them into one 
C) many decimal inputs and transmits the selected information 
D) many decimal outputs and accepts the selected information 
A) one digital information from several sources and transmits the selected one 
B) many digital information and convert them into one 
C) many decimal inputs and transmits the selected information 
D) many decimal outputs and accepts the selected information

Question 20

Which combinational circuit is renowned for selecting a single input from multiple inputs & directing the binary information to output line?

Accepted Answer

A) data selector 
B) data distributor 
C) both data selector and data distributor 
D) demultiplexer 
A) data selector 
B) data distributor 
C) both data selector and data distributor 
D) demultiplexer

If two inputs are active on a priority encoder, which will be coded on the output?

An identify comparator is defined as a digital comparator which has______________

A magnitude comparator is defined as a digital comparator which has______________

How many types of digital comparators are?

TTL 74LS85 is a______________

How is an encoder different from a decoder?

The discrepancy of 0 output due to all inputs being 0 or D0, being 0 is resolved by using additional input known as______________

How many inputs will a decimal-to-BCD encoder have?

In a multiplexer, the selection of a particular input line is controlled by______________

What is the function of an enable input on a multiplexer chip?

Which is the major functioning responsibility of the multiplexing combinational circuit?

How many OR gates are required for an octal-to- binary encoder?

How many select lines would be required for an 8- line-to-1-line multiplexer?

If the number of n selected input lines is equal to 2^m then it requires____________select lines.

What is a multiplexer?

How many OR gates are required for a Decimal-to- bcd encoder?

If we record any music in any recorder, such types of process is called______________

How many outputs will a decimal-to-BCD encoder have?

A digital multiplexer is a combinational circuit that selects______________

Which combinational circuit is renowned for selecting a single input from multiple inputs & directing the binary information to output line?

Number Systems and Binary Codes

Boolean Algebra

Boolean Algebra and Logic Circuits

Logic Circuit and Arithmetic Unit

Digital Number Systems and Comparators

Digital Circuits and HDL Applications

Understanding Flip-Flop and Sequential Circuits

Registers and Counters in Digital Logic

Sequential Circuits and Fault Detection Techniques

Ram, Memory, and Storage Technology

Transmission, Memory and PLDS

Programmable Logic Devices PLDS and Field-Programmable Gate Arrays FPGAS

Filters

Exam 6: Digital Comparators, Encoders, and Multiplexers

If two inputs are active on a priority encoder, which will be coded on the output?

An identify comparator is defined as a digital comparator which has______________

A magnitude comparator is defined as a digital comparator which has______________

How many types of digital comparators are?

TTL 74LS85 is a______________

How is an encoder different from a decoder?

The discrepancy of 0 output due to all inputs being 0 or D0, being 0 is resolved by using additional input known as______________

How many inputs will a decimal-to-BCD encoder have?

In a multiplexer, the selection of a particular input line is controlled by______________

What is the function of an enable input on a multiplexer chip?

Which is the major functioning responsibility of the multiplexing combinational circuit?

How many OR gates are required for an octal-to- binary encoder?

How many select lines would be required for an 8- line-to-1-line multiplexer?

If the number of n selected input lines is equal to 2^m then it requires____________select lines.

What is a multiplexer?

How many OR gates are required for a Decimal-to- bcd encoder?

If we record any music in any recorder, such types of process is called______________

How many outputs will a decimal-to-BCD encoder have?

A digital multiplexer is a combinational circuit that selects______________

Which combinational circuit is renowned for selecting a single input from multiple inputs & directing the binary information to output line?

Number Systems and Binary Codes

Boolean Algebra

Boolean Algebra and Logic Circuits

Logic Circuit and Arithmetic Unit

Digital Number Systems and Comparators

Digital Circuits and HDL Applications

Understanding Flip-Flop and Sequential Circuits

Registers and Counters in Digital Logic

Sequential Circuits and Fault Detection Techniques

Ram, Memory, and Storage Technology

Transmission, Memory and PLDS

Programmable Logic Devices PLDS and Field-Programmable Gate Arrays FPGAS

Filters