Basics of C Flashcards

1

Which of the following is not a character constant

‘Enter values of P,N,R’
’Thank you’
’23.56E-03’
All the above

2

char a = '0'; char b = 'A'; char result = a + b; printf("%c", result);

q
113
123
Error

3

What is the role of printf in C?

To perform mathematical operations.
To format and display output.
To read input from the user.
To declare variables

4

When are garbage values typically encountered in C?

When a program terminates.
When using the printf function.
When variables are declared and initialized.
When variables are declared but not initialized

5

C is a

middle level language
english language letter C
low level language
high level language

6

Which of the following code snippets is likely to produce a garbage value?

double price = 0.00;
int number = 42;
float pi = 3.14;
char character;

7

In C, what is the primary purpose of const?

To specify a variable's data type.
To declare a variable's scope.
To define a variable that changes frequently.
To define a variable that cannot be changed.

8

What is the result of the following code?

8.0
8.5
8
compilation error

9

Which of the following is not a valid variable name declaration?

int a_3;
int _3a
int _a3;
int 3_a

10

Which of the following is a valid C variable name?

const
123variable
first_name
my-variable

11

What is the format specifier for a single character in C?

%f
%c
%s
%d

12

what is output for printf("%c", result);

64
97
96
a

13

What is the result of the following code?

3
Compilation Error
3.14159265359
3.14

14

In C, how can you declare a constant integer with the value 10?

int constant = 10;
10 constant;
constant int = 10;
const int constant = 10;

15

what is output?

2.0
Compilation Error
2.5
2

Basics of C

Questions 15

Basics of C

Questions 15