# Basic gates (AND, OR, NOT) Gat MCQ

Which of the following is the symbol for the NOT gate?

A) ∧
B) ∨
C) ⊕
D) ¬
What is the output of an AND gate if both inputs are LOW (0)?

A) HIGH (1)
B) LOW (0)
C) Unknown
D) Depends on gate configuration
What is the output of an OR gate if both inputs are HIGH (1)?

A) HIGH (1)
B) LOW (0)
C) Unknown
D) Depends on gate configuration
The truth table for an AND gate has how many rows?

A) 1
B) 2
C) 3
D) 4
Which logic gate has an output that is the inverse of the input?

A) AND gate
B) OR gate
C) NOT gate
D) XOR gate
What is the output of a NOT gate if the input is HIGH (1)?

A) HIGH (1)
B) LOW (0)
C) Unknown
D) Depends on gate configuration
What is the symbol for the OR gate?

A) ∧
B) ∨
C) ⊕
D) ¬
The truth table for a NOT gate has how many rows?

A) 1
B) 2
C) 3
D) 4
What is the output of an OR gate if one input is LOW (0) and the other is HIGH (1)?

A) HIGH (1)
B) LOW (0)
C) Unknown
D) Depends on gate configuration
What is the symbol for the AND gate?

A) ∧
B) ∨
C) ⊕
D) ¬
The truth table for an OR gate has how many rows?

A) 1
B) 2
C) 3
D) 4
What is the output of an AND gate if one input is LOW (0) and the other is HIGH (1)?

A) HIGH (1)
B) LOW (0)
C) Unknown
D) Depends on gate configuration
Which logic gate has an output of HIGH (1) only when both inputs are HIGH (1)?

A) AND gate
B) OR gate
C) NOT gate
D) XOR gate
What is the output of an XOR gate if both inputs are HIGH (1)?

A) HIGH (1)
B) LOW (0)
C) Unknown
D) Depends on gate configuration
What is the symbol for the XOR gate?

A) ∧
B) ∨
C) ⊕
D) ¬
Which logic gate has an output of HIGH (1) when inputs are different?

A) AND gate
B) OR gate
C) NOT gate
D) XOR gate
What is the output of a NAND gate if both inputs are LOW (0)?

A) HIGH (1)
B) LOW (0)
C) Unknown
D) Depends on gate configuration
What is the output of a NOR gate if both inputs are HIGH (1)?

A) HIGH (1)
B) LOW (0)
C) Unknown
D) Depends on gate configuration
Which logic gate has an output of HIGH (1) only when both inputs are LOW (0)?

A) NAND gate
B) NOR gate
C) XOR gate
D) NOT gate
What is the output of a XOR gate if both inputs are LOW (0)?

A) HIGH (1)
B) LOW (0)
C) Unknown
D) Depends on gate configuration

## MCQs of Digital Logic Design (DLD)

Introduction to Digital Systems

Boolean Algebra

1. Basic logic operations (AND, OR, NOT) MCQ
2. Laws and theorems of Boolean algebra MCQ
3. De Morgan’s Theorems MCQ
4. Canonical forms (Sum of Products, Product of Sums) MCQ
5. Simplification techniques (Karnaugh Maps, Quine-McCluskey method) MCQ

Combinational Logic

Logic Gates

Combinational Circuits

Sequential Logic

Flip-Flops and Latches

Counters and Registers

State Machines

Finite State Machines (FSMs)

Memory and Programmable Logic MCQs

Memory Devices

## More MCQs of Digital Logic Design (DLD)

MCQs collection of solved and repeated MCQs with answers for the preparation of competitive exams, admission test and job of PPSC, FPSC, UPSC, AP, APPSC, APSC, BPSC, PSC, GOA, GPSC, HPSC, HP, JKPSC, JPSC, KPSC, KERALAPSC, MPPSC, MPSC, MPSCMANIPUR, MPSC, NPSC, OPSC, RPSC, SPSCSKM, TNPSC, TSPSC, TPSC, UPPSC, UKPSC, SPSC, KPPSC, BPSC, AJKPSC ALPSC, NPSC, LPSC, SCPSC, DPSC, DCPSC, PSC, UPSC, WVPSC, PSCW, and WPSC.