Quiz Questions

Question 1 1 Marks

How many inputs are available in the 7447 BCD-to-seven segment decoder used to drive the LED display?

A

One

B

Four

C

Seven

D

Eight

Question 2 1 Marks

What is the power supply required to operate the most standard TTL ICs properly?

A

+ 1.5v to +2.5V

B

- 1.5v to - 2.5V

C

+ 4.75v to + 5.25V

D

+ 7.5v to + 12V

Question 3 1 Marks

What is the propagation delay of the standard TTL chip?

A

5 ns

B

8 ns

C

10 ns

D

12 ns

Question 4 1 Marks

What is the power dissipation of the standard TTL chip?

A

5 mW/gate

B

10 mW/gate

C

15 mW/gate

D

20 mW/gate

Question 5 1 Marks

What is the decimal conversion number for the octal number (2374)8?

A

(1266)10

B

(1276)10

C

(1286)10

D

(1296)10

Question 6 1 Marks

What is the digital signal value for the analog signal value 6V?

A

100

B

101

C

110

D

111

Question 7 1 Marks

What is the decimal number for the binary number 0101?

A

4

B

5

C

6

D

7

Question 8 1 Marks

Which IC is used for (DEMUX) function in data transmission?

A

IC 7483

B

IC 7486

C

74 LS 138

D

74 LS 151

Question 9 1 Marks

Which circuits requires the flip - flops for their operation?

A

Amplifier circuits

B

Oscillator circuits

C

Modulator circuits

D

Memory circuits

Question 10 1 Marks

What is the use of flip - flop?

A

It stores energy

B

It stores voltage

C

It stores current

D

It stores binary information

Question 11 1 Marks

What is the maximum possible number of flip-flops in a decade counter?

A

1n

B

2n

C

2n+1

D

3n

Question 12 1 Marks

What is the purpose of using IC74LS190?

A

Attemnator

B

Comparator

C

Up/down counter

D

Modulator

Question 13 1 Marks

Which IC is used for the function of 4 bit shift register?

A

IC 7404

B

IC 7447

C

IC 7493

D

IC 7495

Question 14 1 Marks

What is the information stored in digital registers?

A

Analog values

B

Binary values

C

Decimal values

D

Alphanumeric values

Question 15 1 Marks

How many transistors are built inside the Very Large Scale Integration (VLSI) IC package?

A

1000 and above

B

1 to 10 transistors

C

10 to 100 transistors

D

100 to 1000 transistors

Question 16 1 Marks

Which IC package consist of 100 to 1000 transistors?

A

Large scale integration (LSI)

B

Small scale integration (SSI)

C

Medium scale integration (MSI)

D

Very large scale integration (VLSI)

Question 17 1 Marks

Which is the 3 terminal, negative voltage regulator IC?

A

LM 320

B

LM 340

C

IC 7905

D

IC 7812

Question 18 1 Marks

Which three terminal voltage regulator IC has adjustable output?

A

LM 100

B

LM 105

C

LM 305

D

LM 317

Question 19 1 Marks

How much is the maximum load current of the negative voltage regulator IC 7912?

A

1.0 A

B

1.5 A

C

2.0 A

D

0.55 A

Question 20 1 Marks

What is the current rating of voltage regulator IC LM338K?

A

2A

B

3A

C

4A

D

5A

Question 21 1 Marks

Which method is followed to troubleshoot the problem causing section by the symptom?

A

Step by step method

B

Sensory test method

C

Trial and error method

D

Logical approach method

Question 22 1 Marks

What is the current rating of voltage regulator IC LM317L?

A

0.1 A

B

0.2 A

C

0.3 A

D

0.4 A

Question 23 1 Marks

What is the range of output voltage of regulator IC LM 317?

A

0 to 25 V

B

0 to 30 V

C

0 to 32 V

D

1.2 V to 32 V

Question 24 1 Marks

Which type of voltage regulator is IC 723?

A

Multipin variable voltage regulator

B

Three pin positive voltage regulator

C

Three pin negative voltage regulator

D

Three pin adjustable voltage regulator