Programming Concepts: Operators and Statements

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Questions and Answers

A calculator can decide if one number is greater than another.

False

Which of the following is a relational operator?

== (correct)

What is the purpose of relational operators?

To compare two data items.

In C programming, the operator for 'not equal to' is _____

!= Signup and view all the answers

Match the following operators with their functions:

< = Less than <blockquote> = Greater than == = Equal to != = Not equal to </blockquote> Signup and view all the answers

Which logical operator in C represents AND?

&& Signup and view all the answers

The condition for a student to pass requires securement of 40% aggregate and 35% minimum in each subject.

True Signup and view all the answers

What is the C equivalent of the logical operator OR?

|| Signup and view all the answers

In C, variables can hold different types of data such as ______.

integers, floats, characters Signup and view all the answers

Match the following terms with their correct description:

Operators = Perform operations on variables Assignment Statements = Assign values to variables Data Types = Define the type of data a variable can hold Variables = Store data in the program Signup and view all the answers

What will be the output if the input number is 7 and you apply the rule to find the next number divisible by 5?

10 Signup and view all the answers

The logical operator AND is represented as || in C.

False Signup and view all the answers

What is the minimum percentage required in each subject for a student to pass?

35% Signup and view all the answers

What value will be displayed on the screen from the following pseudo code: A  10; PRINT(A)?

10 Signup and view all the answers

The INPUT statement can accept multiple variables at once.

True Signup and view all the answers

What formula is used to convert temperature from Centigrade (C) to Fahrenheit (F)?

F = (9/5) * C + 32 Signup and view all the answers

The assignment statement A __ 10 assigns the value 10 to variable A.

← Signup and view all the answers

Match the following flowchart symbols with their purposes:

Oval = Start/End of a program Rectangle = Variable declaration & processing Parallelogram = Input/Output Diamond = Decision making Signup and view all the answers

What will be the output of the following pseudo code if Area is assigned 100? PRINT(“Area of the circle =”, Area)

Area of the circle = 100 Signup and view all the answers

In flowcharting, a rectangle is used to represent the input and output of a program.

False Signup and view all the answers

When using the PRINT statement with quoted strings, they will be printed as __.

is Signup and view all the answers

Study Notes

Relational Operators

Relational operators help compare data
Used to make decisions in a computer program
Examples of relational operators are: greater than, less than, equal, not equal
Used in "if-else" statements

Conditional Statements

Used to control the flow of a program based on conditions
Used in combination with relational operators
"If" statements execute code if a condition is true
"Else" statements execute code if a condition is false
Statements can be combined (if-else-if) for multiple conditions

Flowcharting Conditional Statements

Flowcharting uses graphical symbols to visualize program flow
Symbols for Start/End, Variable declaration, Input/Output
Example: flowchart for finding the sum of two numbers

Logical Operators

Combine conditional statements
Examples of logical operators are: AND, OR
These operators determine the truth value of a compound statement
C language uses && for AND and || for OR
Example: check if a student has passed an exam with multiple conditions

Example Problem

Input name, marks in three subjects, check if student passed the exam
Use logical operators to combine conditions: individual marks >= 35, AND average >= 40.

The Equation

The equation Y = ( ((5x + 3 ) x + 2 )* x + 1)* x + 10 can be rewritten without powers of x by expanding the expression
This can be done by performing each multiplication step in a nested fashion.
The result will be a polynomial expression in x.

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Description

This quiz covers essential programming concepts including relational operators, conditional statements, flowcharting, and logical operators. Test your knowledge on how these elements work together to control the flow of a program. Perfect for beginners looking to solidify their understanding of programming fundamentals.