Question 1

The full form of VHDL is______________

Accepted Answer

A) very high descriptive language 
B) verilog hardware description language 
C) variable definition language 
D) none of the mentioned 
A) very high descriptive language 
B) verilog hardware description language 
C) variable definition language 
D) none of the mentioned B

Question 2

For using a process to implement a combinational circuit, which signals should be in the sensitivity list?

Accepted Answer

A) inputs of the circuit 
B) outputs of the circuit 
C) both of the inputs and outputs 
D) no signal should be in the sensitivity list 
A) inputs of the circuit 
B) outputs of the circuit 
C) both of the inputs and outputs 
D) no signal should be in the sensitivity list A

Question 3

Which of the following is not a combinational circuit?

Accepted Answer

A) adder 
B) code convertor 
C) multiplexer 
D) counter 
A) adder 
B) code convertor 
C) multiplexer 
D) counter D

Question 4

The use of VHDL can be done in____________ways.

Accepted Answer

A) 2 
B) 3 
C) 4 
D) 5 
A) 2 
B) 3 
C) 4 
D) 5

Question 5

In a given combinational circuit, the concurrent statements are used with selected assignments using WHEN and ELSE keyword. What is the other alternative to implement the same?

Accepted Answer

A) with-select 
B) with-select-when 
C) if-else 
D) case 
A) with-select 
B) with-select-when 
C) if-else 
D) case

Question 6

How many NOT gates are required for the construction of a 4-to-1 multiplexer?

Accepted Answer

A) 3 
B) 4 
C) 2 
D) 5 
A) 3 
B) 4 
C) 2 
D) 5

Question 7

The full form of HDL is______________

Accepted Answer

A) higher descriptive language 
B) higher definition language 
C) hardware description language 
D) high descriptive language 
A) higher descriptive language 
B) higher definition language 
C) hardware description language 
D) high descriptive language

Question 8

A step which should be followed in project management is known as______________

Accepted Answer

A) overall definition 
B) system documentation 
C) synthesis and testing 
D) system integration 
A) overall definition 
B) system documentation 
C) synthesis and testing 
D) system integration

Question 9

In an HDL application of a stepper motor, what is done next after an up/down counter is built?

Accepted Answer

A) build the sequencer 
B) test it on a simulator 
C) test the decoder 
D) design an intermediate integer variable 
A) build the sequencer 
B) test it on a simulator 
C) test the decoder 
D) design an intermediate integer variable

Question 10

At high frequencies when the sampling interval is too long in a frequency counter______________

Accepted Answer

A) the counter works fine 
B) the counter undercounts the frequency 
C) the measurement is less precise 
D) the counter overflows 
A) the counter works fine 
B) the counter undercounts the frequency 
C) the measurement is less precise 
D) the counter overflows

Question 11

Latches constructed with NOR and NAND gates tend to remain in the latched condition due to which configuration feature?

Accepted Answer

A) low input voltages 
B) synchronous operation 
C) gate impedance 
D) cross coupling 
A) low input voltages 
B) synchronous operation 
C) gate impedance 
D) cross coupling

Question 12

In a digital clock application, the basic frequency must be divided down as______________

Accepted Answer

A) 1 hz 
B) 60 hz 
C) 100 hz 
D) 1000 hz 
A) 1 hz 
B) 60 hz 
C) 100 hz 
D) 1000 hz

Question 13

When a key is pressed, what does the ring counter in the HDL keypad application do?

Accepted Answer

A) count to find the row 
B) freeze 
C) count to find the column 
D) start the d flip-flop 
A) count to find the row 
B) freeze 
C) count to find the column 
D) start the d flip-flop

Question 14

VHDL is being used for______________

Accepted Answer

A) documentation 
B) verification 
C) synthesis of large digital design 
D) all of the mentioned 
A) documentation 
B) verification 
C) synthesis of large digital design 
D) all of the mentioned

Question 15

In the keypad application, the preset state of the ring counter define______________

Accepted Answer

A) the nanding of the columns 
B) the nanding of the rows 
C) the proper output of the column encoder 
D) the proper output of the row encoder 
A) the nanding of the columns 
B) the nanding of the rows 
C) the proper output of the column encoder 
D) the proper output of the row encoder

Question 16

Which of the following is a not a characteristics of combinational circuits?

Accepted Answer

A) the output of combinational circuit depends on present input 
B) there is no use of clock signal in combinational circuits 
C) the output of combinational circuit depends on previous output 
D) there is no storage element in combinational circuit 
A) the output of combinational circuit depends on present input 
B) there is no use of clock signal in combinational circuits 
C) the output of combinational circuit depends on previous output 
D) there is no storage element in combinational circuit

Question 17

The enable input is also known as______________

Accepted Answer

A) select input 
B) decoded input 
C) strobe 
D) sink 
A) select input 
B) decoded input 
C) strobe 
D) sink

Question 18

A 4 to 16 decoder can be used as a code converter. What will be the inputs and outputs of the converter respectively?

Accepted Answer

A) binary, octal 
B) octal, binary 
C) hexadecimal, binary 
D) binary, hexadecimal 
A) binary, octal 
B) octal, binary 
C) hexadecimal, binary 
D) binary, hexadecimal

Question 19

VHSIC stands for______________

Accepted Answer

A) very high speed integrated circuits 
B) very higher speed integration circuits 
C) variable high speed integrated circuits 
D) variable higher speed integration circuits 
A) very high speed integrated circuits 
B) very higher speed integration circuits 
C) variable high speed integrated circuits 
D) variable higher speed integration circuits

Question 20

The output frequency related to the sampling interval of a frequency counter as______________

Accepted Answer

A) directly with the sampling interval 
B) inversely with the sampling interval 
C) more precision with longer sampling interval 
D) less precision with longer sampling interval 
A) directly with the sampling interval 
B) inversely with the sampling interval 
C) more precision with longer sampling interval 
D) less precision with longer sampling interval

The full form of VHDL is______________

For using a process to implement a combinational circuit, which signals should be in the sensitivity list?

Which of the following is not a combinational circuit?

The use of VHDL can be done in____________ways.

In a given combinational circuit, the concurrent statements are used with selected assignments using WHEN and ELSE keyword. What is the other alternative to implement the same?

How many NOT gates are required for the construction of a 4-to-1 multiplexer?

The full form of HDL is______________

A step which should be followed in project management is known as______________

In an HDL application of a stepper motor, what is done next after an up/down counter is built?

At high frequencies when the sampling interval is too long in a frequency counter______________

Latches constructed with NOR and NAND gates tend to remain in the latched condition due to which configuration feature?

In a digital clock application, the basic frequency must be divided down as______________

When a key is pressed, what does the ring counter in the HDL keypad application do?

VHDL is being used for______________

In the keypad application, the preset state of the ring counter define______________

Which of the following is a not a characteristics of combinational circuits?

The enable input is also known as______________

A 4 to 16 decoder can be used as a code converter. What will be the inputs and outputs of the converter respectively?

VHSIC stands for______________

The output frequency related to the sampling interval of a frequency counter as______________

Number Systems and Binary Codes

Boolean Algebra

Boolean Algebra and Logic Circuits

Logic Circuit and Arithmetic Unit

Digital Number Systems and Comparators

Digital Comparators, Encoders, and Multiplexers

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 7: Digital Circuits and HDL Applications

The full form of VHDL is______________

For using a process to implement a combinational circuit, which signals should be in the sensitivity list?

Which of the following is not a combinational circuit?

The use of VHDL can be done in____________ways.

In a given combinational circuit, the concurrent statements are used with selected assignments using WHEN and ELSE keyword. What is the other alternative to implement the same?

How many NOT gates are required for the construction of a 4-to-1 multiplexer?

The full form of HDL is______________

A step which should be followed in project management is known as______________

In an HDL application of a stepper motor, what is done next after an up/down counter is built?

At high frequencies when the sampling interval is too long in a frequency counter______________

Latches constructed with NOR and NAND gates tend to remain in the latched condition due to which configuration feature?

In a digital clock application, the basic frequency must be divided down as______________

When a key is pressed, what does the ring counter in the HDL keypad application do?

VHDL is being used for______________

In the keypad application, the preset state of the ring counter define______________

Which of the following is a not a characteristics of combinational circuits?

The enable input is also known as______________

A 4 to 16 decoder can be used as a code converter. What will be the inputs and outputs of the converter respectively?

VHSIC stands for______________

The output frequency related to the sampling interval of a frequency counter as______________

Number Systems and Binary Codes

Boolean Algebra

Boolean Algebra and Logic Circuits

Logic Circuit and Arithmetic Unit

Digital Number Systems and Comparators

Digital Comparators, Encoders, and Multiplexers

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