Physics is an important subject in preparation for
various Competitive exams.To keep a track of your preparation we have designed a small quiz of 10

**Basic Level**Questions on**Logic Gates.**You have 10 minutes to solve the quiz, click the start timer button in order to start the timer and then click on submit button at the end to submit the quiz and view your scores and correct answers..**Q1.**How many NAND gates are used to form an AND gate :

Solution

Answer: 2

Answer: 2

**Q2.**A gate has the following truth table

P 1 1 0 0

Q 1 0 1 0

R 1 0 0 0

Solution

Answer: AND

Answer: AND

**Q3.**A logic gate is an electronic circuit which

Solution

Answer: Makes logic decisions

Answer: Makes logic decisions

**Q4.**The logic behind ‘NOR’ gate is that it gives

Solution

Answer: High output when both the inputs are low

Answer: High output when both the inputs are low

**Q5.**Boolean algebra is essentially based on

Solution

Answer: Logic

Answer: Logic

**Q6.**The truth-table given below is for which gate

A 0 0 1 1

B 0 1 0 1

C 1 1 1 0

Solution

Answer: NAND

Answer: NAND

**Q7.**The truth table shown in figure is for

A 0 0 1 1

B 0 1 0 1

Y 1 0 0 1

Solution

Answer : XNOR

Answer : XNOR

**Q8.**Which one of the following gates can be served as a building block for any digital circuit :

Solution

Answer: NAND

Answer: NAND

**Q9.**A truth table is given below. Which of the following has this type of truth table

A 0 1 0 1

B 0 0 1 1

y 1 0 0 0

Solution

Answer: NOR

Answer: NOR

**Q10.**The following truth table corresponds to the logic gate

A 0 0 1 1

B 0 1 0 1

X 0 1 1 1

Solution

Answer: OR

Answer: OR