DSDV ISE-I 2022-23

A positive OR gate is also a negative

• NOR gate

• NAND gate

• AND gate

• OR gate

Boolean function must be brought into________ To perform product of max terms

• A. OR terms

• B. AND terms

• C. Both A & B

• D. NOT terms

An OR gate has 4 inputs. The output is ……. When One input is high and the other three are low.

• High

• Low

• alternately high and low

• may be high or low depending on the relative magnitude of inputs

For performing the function of two-input OR gate, What is the minimum number of two-input NAND gates used?

• 2

• 3

• 4

• 5

When we input two values 0 and 1 which of the following gates would output 1?

• A. OR gate

• B. AND gate

• C. NAND gate

• D. both a and c

  if a three variable switching function is expressed as the product of maxterms by f(A,B,C) =π(0,3,5,6)

then it can also be expressed as the sum of minterms by

• A. π(1,2,4,7)

• B. ∑(0,3,5,6)

• C. ∑(1,2,4,7)

• D. ∑(1,2,3,7)

The NAND or NOR gates are referred to as "universal" gates because either:

• A.can be found in almost all digital circuits

• B.can be used to build all the other types of gates

• C.are used in all countries of the world

• D.were the first gates to be integrated

Which one of the following is not a valid rule of Boolean algebra?

• A.A+1=1

• B.A=Ā

• C.AA=A

• D.A+0=A

According to distributive law which of the following is correct?

• A.A(B+C)=AB+AC

• B.A(BC)=ABC

• C.A(A+1)=A

• D.A+AB=A

In K-map simplification, a group of four adjacent 1s leads to a term with

• one literal less than the total number of variables

•  two literals less than the total number of variables

•  three literals less than the total number of variables

• four literals less than the total number of variables