Test: Digital Electronics Circuits- 2 - Electrical Engineering (EE) MCQ

# Test: Digital Electronics Circuits- 2 - Electrical Engineering (EE) MCQ

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## 25 Questions MCQ Test Basic Electronics Engineering JE (Technical) - Test: Digital Electronics Circuits- 2

Test: Digital Electronics Circuits- 2 for Electrical Engineering (EE) 2024 is part of Basic Electronics Engineering JE (Technical) preparation. The Test: Digital Electronics Circuits- 2 questions and answers have been prepared according to the Electrical Engineering (EE) exam syllabus.The Test: Digital Electronics Circuits- 2 MCQs are made for Electrical Engineering (EE) 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Digital Electronics Circuits- 2 below.
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Test: Digital Electronics Circuits- 2 - Question 1

### Give Boolean theorem AB + + BC= AB+  Which one of the following identities is true?

Test: Digital Electronics Circuits- 2 - Question 2

### The number of 4 of 4 lin- to-16 line decoders required to make an 8-line-to-256-line decoder is

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Test: Digital Electronics Circuits- 2 - Question 3

### The characteristic equation of the T-flip-flop is given by

Test: Digital Electronics Circuits- 2 - Question 4

The initial contents of the 4 dit serial in-parallelout, right Shift, register shown in the given figureis 0110. After three clock pulses are applied, the contents of the shift register will be

Test: Digital Electronics Circuits- 2 - Question 5

With 4 Boolean variables, how many Boolean expressions can be formed?

Test: Digital Electronics Circuits- 2 - Question 6

A number is expressed in binary two's complement a 10011, Its decimal equivalent value is

Test: Digital Electronics Circuits- 2 - Question 7

The Boolean expression ( + B)(A+ )( ) Simplifies to

Test: Digital Electronics Circuits- 2 - Question 8

The minimum number of NAND gates required to imnplement the Boolean function

A+ A+ A C is equal to

Test: Digital Electronics Circuits- 2 - Question 9

The addition of two binary variables A and B results into a SUM And a CARRY output.Consider the following expressions for the SUM and CARRY outputs.

1. SUM = A.B +

2. SUM = A.+ A.

3. CARRY = A.B

4. Carry = A +B

Which of these expressions are correct?

Test: Digital Electronics Circuits- 2 - Question 10

For a binary half subtractor having two inputs A and B, the correct sets of logical expressions for the output sets of logical expressions for the output D (= A minus B) and X (= borrow) are

Test: Digital Electronics Circuits- 2 - Question 11

Minimum number of J-K flip-flip- flops needed to construct a BCD counter is

Test: Digital Electronics Circuits- 2 - Question 12

The characteristic equation for the next state (Qn +1) of a J-K flip- flop is

Test: Digital Electronics Circuits- 2 - Question 13

The initial contents of the 4-bit series in- parallelout, right shift, shift register as shown in figure below are 0110. After 3 clock pulses the contents of the shift register will be

Test: Digital Electronics Circuits- 2 - Question 14

How many 1's are present in the binary representation of (4 ×4096) + (9 × 256) + (7×16)+5 ?

Test: Digital Electronics Circuits- 2 - Question 15

Which IC is used for the implementation of 1-to-16 DEMUX?

Detailed Solution for Test: Digital Electronics Circuits- 2 - Question 15

IC 74154 is used for the implementation of 1-to-16 DEMUX, whose output is inverted input.

Test: Digital Electronics Circuits- 2 - Question 16

Which one of the following statements is correct?

Test: Digital Electronics Circuits- 2 - Question 17

Match List-I (Type of N-bit ADC) with List-II (Characteristics) and select the correct answer using the codes given below the lists:

Test: Digital Electronics Circuits- 2 - Question 18

If (2.3) base 4 +(1.2) base4 = (Y)base 4 ; what is the value of Y?

Test: Digital Electronics Circuits- 2 - Question 19

Given (135)base x +(144) base x = (323) base x

Test: Digital Electronics Circuits- 2 - Question 20

What is the output f(X,y) of the multiplexer resulting from the input logical values?

Test: Digital Electronics Circuits- 2 - Question 21

Given below are three types of converters:

1. Successive approximation type

2. Weighted resistor type

Which of these types are D to A converters?

Test: Digital Electronics Circuits- 2 - Question 22

What is the Gray code word for the binary binary 101011?

Test: Digital Electronics Circuits- 2 - Question 23

If A and B are Boolean Variables, then what is (A+ B). (A+ ) equal to ?

Test: Digital Electronics Circuits- 2 - Question 24

What is the Boolean expression A Å B equivalent to?

Test: Digital Electronics Circuits- 2 - Question 25

A 1 ms pulse can be converted into a 10 ms pulse by using which one of the following?

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