C Intro

Which of the following is a valid C keyword?

• function

• return

• loop

• begin

stdio.h is a___________

Which of the following is used to declare a variable in C?

• let

• define

• var

• int

Read the following passage and answer questions:

C programs follow a structured format. A typical program begins with a preprocessor section, followed by the main function. Inside the main function, variables are declared and logic is implemented using C syntax. Data types in C include int, float, and char.

Question:
Which section usually comes first in a C program?

What is the correct syntax to declare an integer variable in C?

• int x;

• integer x;

• num x;

• x = int;

Which data type is used to store a single character?

• A) string

• B) char

• C) text
  

• D) letter

What is the output of this code?

• 53

• 8

• 5+3

• Error

What is the output of this code?

• 2

• 2.50

• 2.5

What does this code do?

• Prints 65

• Prints A

• Prints c

• Error

Which is the correct way to print a float variable?

float pi = 3.14;

• printf("%d", pi);

• printf("%c", pi);

• printf("%f", pi);

• printf("%s", pi);