# Binary Adders (Half adder, Full adder) MCQ

What is the primary function of a half adder in digital circuits?

A) Adds two binary numbers with carry

B) Adds two binary numbers without carry

C) Adds three binary numbers with carry

D) Adds three binary numbers without carry

Answer: B

What is the primary function of a full adder in digital circuits?

A) Adds two binary numbers with carry

B) Adds two binary numbers without carry

C) Adds three binary numbers with carry

D) Adds three binary numbers without carry

Answer: A

Which of the following statements about half adders is true?

A) They have two inputs and two outputs.

B) They have two inputs and one output.

C) They have three inputs and two outputs.

D) They have three inputs and one output.

Answer: B

Which of the following statements about full adders is true?

A) They have two inputs and two outputs.

B) They have two inputs and one output.

C) They have three inputs and two outputs.

D) They have three inputs and one output.

Answer: C

What is the output of a half adder if the inputs are

𝐴

=

1

A=1 and

𝐵

=

0

B=0?

A) Sum = 0, Carry = 0

B) Sum = 1, Carry = 0

C) Sum = 0, Carry = 1

D) Sum = 1, Carry = 1

Answer: B

Which gate is commonly used internally in half adders?

A) XOR gate

B) AND gate

C) OR gate

D) NAND gate

Answer: A

Which gates are commonly used internally in full adders?

A) XOR gate and AND gate

B) XOR gate and OR gate

C) AND gate and OR gate

D) NAND gate and NOR gate

Answer: A

## MCQs of Digital Logic Design (DLD)

**Introduction to Digital Systems**

- Analog vs. Digital signals MCQs
- Binary numbers and arithmetic MCQs
- Logic levels and noise margins MCQs

**Boolean Algebra**

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

**Combinational Logic**

**Logic Gates**

**Combinational Circuits**

- Design and analysis of combinational circuits MCQ
- Multiplexers and Demultiplexers MCQ
- Encoders and Decoders MCQ
- Binary Adders (Half adder, Full adder) MCQ
- Subtractors and Arithmetic Logic Units (ALU) MCQ
- Comparators MCQ in DLD

**Sequential Logic**

**Flip-Flops and Latches**

- SR Latch, D Latch MCQ
- Flip-Flops (SR, D, JK, T) MCQ
- Characteristic equations and excitation tables MCQ
- Edge-triggered vs. level-triggered devices MCQ

**Counters and Registers**

- Synchronous, Asynchronous (ripple), Up/Down counters MCQs
- Shift registers (SIPO, PISO, SISO, PIPO) MCQs

**State Machines**

**Finite State Machines (FSMs)**

**Memory and Programmable Logic MCQs**

**Memory Devices**

- Read-Only Memory (ROM)
- Random Access Memory (RAM)
- Programmable Logic Devices (PLDs) MCQs
- Field Programmable Gate Arrays (FPGAs) MCQs

## More MCQs of Digital Logic Design (DLD)

- SET 1: DLD MCQs with answers (dld mcqs with answers)
- SET 2: DLD MCQs (dld basic mcqs)
- SET 3: DLD MCQs (solved mcqs of dld)
- SET 4: DLD MCQs (dld repeated mcqs)
- SET 5: DLD MCQs (dld important mcqs)
- SET 6:DLD MCQs DLD Solved MCQs Answers PDF

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.