QUIZ ON : c - INTRODUCTION

INTRODUCTION

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Question No# : 01 out of 50

Which data type is most suitable for storing a number 65000 in a 32-bit system?

A. signed short

B. unsigned short

C. long

D. int

Question No# : 02 out of 50

What is the output of the following code?<pre>int a = 5; printf("%d", a == 5);</pre>

A. 0

B. 1

C. 5

D. Undefined

Question No# : 03 out of 50

What will be the output of the following code segment?<pre>int x = 24, y = 39, z = 45; z = x + y; y = z - y; x = z - y; printf("\n%d %d %d", x, y, z);</pre>

A. 24 39 63

B. 39 24 63

C. 24 39 45

D. 39 24 45

Question No# : 04 out of 50

The result of a Relational operation is always

A. Either True or False

B. is less than or is more than

C. is equal or less or more

D. All of the above

Question No# : 05 out of 50

What will be the output of the following code?<pre>int a = 10, b = 20; printf("%d", a + b);</pre>

A. 30

B. 1020

C. 10+20

D. Compiler error

Question No# : 06 out of 50

Standard ANSI C recognizes ______ number of keywords?

A. 30

B. 32

C. 36

D. 40

Question No# : 07 out of 50

What is correct order of precedence in C?

A. Addition, Division, Modulus

B. Addition, Modulus, Division

C. Multiplication, Substration, Modulus

D. Modulus, Multiplication, Substration

Question No# : 08 out of 50

What is the purpose of the sizeof operator in C?

A. It returns the size of the variable in bits

B. It returns the size of the variable in bytes

C. It returns the size of the variable in kilobytes

D. It returns the number of elements in an array

Question No# : 09 out of 50

What will be the output of the following C code? printf("%d", sizeof(char));

A. 2

B. 4

C. 1

D. Depends on the system

Question No# : 10 out of 50

What is the output of the following code?<pre>main() { int a, b; a=b=4; b=a++; printf("%d %d %d %d", a++, --b, ++a, b--); }</pre>

A. 5 3 7 3

B. Syntax error

C. 5 4 5 3

D. 6 2 6 4

Question No# : 11 out of 50

What is the correct value to return to the operating system upon the successful completion of a program?

A. 1

B. -1

C. 0

D. 2

Question No# : 12 out of 50

What is the correct syntax to output "Hello World" in C?

A. print("Hello World");

B. echo("Hello World");

C. printf("Hello World");

D. None of these

Question No# : 13 out of 50

Identify the correct sequence of steps to run a c program

A. link, load, code, compile and execute

B. code, compile, link, execute and load

C. code, compile, link, load and execute

D. compile, code, link, load and execute

Question No# : 14 out of 50

Which programming method is followed in C language

A. Algorithm

B. Flow-Charts

C. Procedural

D. Object Oriented

Question No# : 15 out of 50

Which of the following is not a correct data type in C

A. float

B. real

C. int

D. double

Question No# : 16 out of 50

Which is an incorrect variable name?

A. Id_No

B. ID_NO

C. IdNo

D. Id No

Question No# : 17 out of 50

Which function is used to read a single character from the user in C?

A. getchar()

B. gets()

C. scanf()

D. cin.get()

Question No# : 18 out of 50

What is required in each C program?

A. Input data

B. The program does not require any function.

C. Output data

D. The program must have at least one function.

Question No# : 19 out of 50

Which of the following cannot be a variable name in C?

A. volatile

B. true

C. friend

D. export

Question No# : 20 out of 50

How many bytes does the int data type usually occupy in C?

A. 1

B. 2

C. 4

D. 8

Question No# : 21 out of 50

Arguments that take input by user before running a program are called?

A. main function arguments

B. main arguments

C. Command-Line arguments

D. Parameterized arguments

Question No# : 22 out of 50

What will be the output of the following C code? printf("%d", sizeof(char));

A. 2

B. 4

C. 1

D. Depends on the system

Question No# : 23 out of 50

For 16 bit compiler allowable range for integer constants is

A. -3.4e38 to 3.4e38

B. -32767 to 32768

C. -32668 to 32667

D. -32768 to 32767

Question No# : 24 out of 50

All keywords in C are in

A. LowerCase letters

B. UpperCase letters

C. CamelCase letters

D. None of these

Question No# : 25 out of 50

which is used to converts an expression to a specified data type

A. Logical Operator

B. Conditional Operator

C. typecast

D. Ternary

Question No# : 26 out of 50

What is short int in C programming?

A. The basic data type of C

B. Qualifier

C. Short is the qualifier and int is the basic data type

D. All of the mentioned

Question No# : 27 out of 50

Which is the only C function all programs must contain?

A. start()

B. printf()

C. main()

D. getch()

Question No# : 28 out of 50

In the passage of text, individual words and punctuation marks are known as

A. Constants

B. Keywords

C. Operators

D. Tokens

Question No# : 29 out of 50

Which of the following software translates source code into object code?

A. Compiler

B. Interpreter

C. Assembler

D. None of These

Question No# : 30 out of 50

Which of the following is false in ‘C’ Programming Language

A. Keywords can be used as variable names

B. Variable names can contain digits

C. Variable names do not contain blank spaces

D. Capital letters can be used in variable names.

Question No# : 31 out of 50

By default a real number is treated as a

A. float

B. double

C. long double

D. far double

Question No# : 32 out of 50

What is the difference between a declaration and a definition of a variable?

A. Both can occur multiple times, but a declaration must occur first.

B. A definition occurs once, but a declaration may occur many times.

C. Both can occur multiple times, but a definition must occur first.

D. A declaration occurs once, but a definition may occur many times.

Question No# : 33 out of 50

Which of the following cannot be used in identifiers?

A. Spaces

B. Digits

C. Underscores

D. Letters

Question No# : 34 out of 50

which Input function does not show the character read from the input device

A. scanf()

B. getch()

C. getche()

D. gets()

Question No# : 35 out of 50

What is the output of the following code: int x = 5; printf("%d", x++);

A. 4

B. 5

C. 6

D. Undefined

Question No# : 36 out of 50

What is the purpose of the #include directive in C?

A. It is used to define global variables

B. It is used to define a macro

C. It is used to include standard or user-defined header files in the program

D. It is used to include comments in the code

Question No# : 37 out of 50

Which of the following is a correct way to declare an integer variable in C?

A. int num;

B. integer num;

C. num int;

D. num integer;

Question No# : 38 out of 50

Which of the following is an incorrect assignment statement ?

A. N=m=0

B. Value+=10

C. mySize=x<y?9:11

D. Value=+=10

Question No# : 39 out of 50

printf (%d, printf (infomax));

A. results in a syntax error

B. output Infomax7

C. outputs garbage

D. outputs infomax and terminates abruptly

Question No# : 40 out of 50

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

A. int number;

B. float rate;

C. int variable_count;

D. int $main;

Question No# : 41 out of 50

Which one of the following is not a valid identifier?

A. _infomax

B. 3infomax

C. infomax_ica

D. infomax123

Question No# : 42 out of 50

if a=8, b=3 and c=-5 are integers, then value of a*b/c is

A. -4

B. -2.8

C. +2.8

D. +3

Question No# : 43 out of 50

What is the output of the following code?<pre>int a = 10, b = 5; printf("%d", a / b);</pre>

A. 5

B. 2

C. 0.5

D. 15

Question No# : 44 out of 50

What is the result of the following code: int a = 10, b = 20; printf("%d", a > b ? a : b);

A. 10

B. 20

C. 0

D. None

Question No# : 45 out of 50

in C language the output of 14 % 4 is

A. 1

B. 2

C. 3

D. 4

Question No# : 46 out of 50

The preprocessor directives start with

A. //

B. /

C. #

D. /*

Question No# : 47 out of 50

Which of the following is not a valid relational operator?

A. <

B. =

C. >=

D. <=

Question No# : 48 out of 50

Which keyword is used to prevent a variable from being modified?

A. final

B. constant

C. const

D. static

Question No# : 49 out of 50

Which one of the following is not a reserved keyword for C?

A. auto

B. case

C. main

D. default

Question No# : 50 out of 50

The conditional operator ( ? : ) is also known as

A. Binary operator

B. Unary operator

C. Ternary operator

D. All of the above