wayground logo

Free Printable Worksheets

Font size

S
M
L
XL
Worksheets

Quiz_Experiment 2.1

Total questions: 10

Worksheet time: 5mins

Name
Class
Date
1.

What is the primary function of a half adder?

a)

Adds two binary digits and produces a sum and a carry.

b)

Converts decimal numbers to binary.

c)

Adds three binary digits and produces a sum and a carry.

d)

Subtracts two binary digits and produces a difference and a borrow.

2.

Which two basic logic gates are typically used to implement a half adder?

a)

NAND gate and NOR gate

b)

AND gate and NOT gate

c)

XOR gate and AND gate

d)

XOR gate and OR gate

3.

What are the Boolean expressions for the sum (S) and carry (C) outputs of a half adder with inputs A and B?

a)

Sum = A OR B, Carry = A NOR B

b)

Sum = A AND B, Carry = A XOR B

c)

Sum = A XNOR B, Carry = A OR B

d)

Sum = A XOR B, Carry = A AND B

4.

What is a significant limitation of a half adder in multi-bit addition?

a)

It does not consider the carry from a previous stage.

b)

It can only perform subtraction.

c)

A half adder can add three or more binary digits.

d)

It has too many output lines.

5.

What is the primary function of a full adder?

a)

Generates random binary numbers.

b)

Subtracts two binary digits.

c)

Multiplies two binary digits.

d)

Adds two binary digits and a carry-in from a previous stage.

6.

A full adder can be constructed using which of the following combinations of logic circuits?

a)

One half adder and one OR gate

b)

Three XOR gates

c)

Two half adders and one AND gate

d)

Two half adders and one OR gate

7.

What are the two outputs of a half subtractor?

a)

Difference (D) and Borrow (B).

b)

Product (P) and Remainder (R).

c)

Sum (S) and Carry (C).

d)

Quotient (Q) and Dividend (V).

8.

Which logic gates are primarily used to implement a half subtractor, given inputs A (minuend) and B (subtrahend)?

a)

An XOR gate and a NOR gate.

b)

Two OR gates.

c)

An XOR gate and an AND gate with a NOT gate on the minuend input for borrow.

d)

An XOR gate and an AND gate.

9.

What is the primary function of a full subtractor?

a)

Compares two binary numbers.

b)

Converts binary to hexadecimal.

c)

Subtracts two binary digits and a borrow-in.

d)

Adds three binary digits.

10.

A full subtractor can be constructed using which of the following combinations of logic circuits?

a)

Two half adders and one AND gate.

b)

Three NAND gates.

c)

One half subtractor and one XOR gate.

d)

Two half subtractors and one OR gate.