Free Printable C BASIC&OPERATORSQUIZFINAL

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C BASIC&OPERATORSQUIZFINAL

Total questions: 60

Worksheet time: 3600secs

Name

Class

Date

What is the entry point of a C program?

start()

begin()

main()

program()

Which of the following is a valid identifier in C?

2variable

variable_name

var-name

var name

Which of the following is not a valid identifier?

myVar

_var123

123var

var_123

Which of the following is a keyword in C?

function

define

return

begin

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

int variable;

int variable:

int variable{};

int variable()

Which of the following is true about variables in C?

Variables can be declared without specifying a data type.

Variable names can start with a digit.

Variables can be declared anywhere in the program before they are used.

Variables do not need to be initialized before use.

Which of the following is not a basic data type in C?

int

float

double

string

Which of the following data types has the highest precision?

int

float

double

char

Which function is used to read formatted input from the standard input in C?

printf()

scanf()

gets()

puts()

10.

Which of the following format specifiers is used to print a floating-point number?

11.

Which of the following code snippets contains a valid identifier?

#include <stdio.h>

int main() {

int 1variable = 10;

printf("%d\n", 1variable);

return 0;

}

The code contains a valid identifier.

The code does not contain a valid identifier.

12.

Which of the following code snippets correctly uses a keyword in C?

#include <stdio.h>

int main() {

int return = 10;

printf("%d\n", return);

return 0;

}

The code correctly uses a keyword.

The code does not correctly use a keyword.

13.

What will be the output of the following C program?

#include <stdio.h>

int main() {

double num = 5.25;

printf("Value = %.2f\n", num);

return 0;

Value = 5.2

Value = 5.25

Value = 5

Value = 5.250000

14.

What will be the output of the following C program?

#include <stdio.h>

int main() {

int a = 5;

float b = 5.5;

printf("a = %d, b = %.1f\n", a, b);

return 0;

}

a = 5, b = 5

a = 5, b = 5.5

a = 5, b = 5.50

The code will produce a compilation error.

15.

What will be the output of the following C program?

#include <stdio.h>

int main() {

float a = 7.0;

int b = 2;

float result = a / b;

printf("Result = %.1f\n", result);

return 0;

}

Result = 3

Result = 3.5

Result = 3.0

The code will produce a compilation error.

16.

What will be the output of the following C program?

#include <stdio.h>

int main() {

int a = 10;

int b = a;

printf("%d\n", b);

return 0;

}

Garbage value

Compilation error

17.

What will be the output of the following C program?

int main() {

int a = 5, b = 3;

int result = a + b * 2;

printf("%d\n", result);

return 0;

}

18.

What will be the output of the following C program?#include <stdio.h>

int main() {

int a = 5, b = 3;

int result = (a > b) && (a < 10);

printf("%d\n", result);

return 0;

}

19.

#include int main() { int x = 10, y = 5, z = 0; z = x++ + ++y; printf("%d", z); return 0; }

20.

What is the output of the following code? #include int main() { int a = 7, b = 3; printf("%d", a / b); return 0; }

2.33

3.5

21.

What will be the output of the following code? #include int main() { int a = 5; printf("%d", a == 5); return 0; }

-1

22.

Which of the following is the correct order of precedence (from highest to lowest) of the given operators?

+, *, &&, ||

*, +, &&, ||

&&, ||, +, *

||, &&, +, *

23.

What will be the output of the following code? #include int main() { int a = 5, b = 3; printf("%d", a & b); return 0; }

24.

What is the output of the following code? #include int main() { int a = 10, b = 20, c = 30; printf("%d", (a < b) && (b > c) || (a == c)); return 0; }

-1

25.

What is the output of the following code? #include int main() { int a = 5, b = 10, c; c = (a > b) ? (a - b) : (b - a); printf("%d", c); return 0; }

-5

26.

What will be the result of the following expression in C? int a = 5; float b = 2.5; float c = a + b;

7.5

5.0

Compilation error

27.

What happens when an int and a double are used together in an arithmetic expression?

The int is promoted to a double

The double is demoted to an int

The result is always an int

Compilation error

28.

What will happen if we assign a float value to an int variable?

The value will be rounded off

The value will be truncated

The value will remain the same

Compilation error

29.

What is the result of the following code? float a = 9.8; int b = (int)a;

9.8

Compilation error

30.

What does the following expression evaluate to? int a = 7; int b = 2; double c = (double)(a / b);

3.5

3.0

Compilation error

31.

What will be the result of this code? double x = -7.999; int y = (int)x;

-8

-7

-7.999

Compilation error

32.

#include main() { int a=012,b=034; int x=0x12,y=0x34; int c,d,u,v; c=a&&b; d=a||b; u=x&&y; v=x||y; printf("%d%d%d%d",c,d,u,v); }

4 lines

33.

What will be the output of the following 'C' code? void main ( ) { int x = 128; printf ("\n%d", 1 + x ++); }

128

129

34.

What will be the output of the following 'C' code? #include void main() { int a=30,b=40,x; x=(a!=10) && (b=50); printf("%d",x); }

35.

What will be the output of the following 'C' code? #include int main() { int x= -7 - -9; int y= -7 - -(-9); printf("x=%d\ny=%d\n",x,y); return 0; }

x=2 y=-16

x=-2 y=16

36.

What will be the output of the following 'C' code? #include int main() { int x; x= 9 % 5 * 4; printf("x=%d",x); return 0; }

x=16

x=4

37.

What will be the output of the following 'C' code? #include int main() { int x; x= 4 - 6 * 5/5 + 7 % 2;; printf("x= %d",x); return 0; }

x=-1

x=1

38.

What will be the output of the following 'C' code? #include int main() { int a; float b ; a=9 % 4; b= 9 % 4; printf("%d, %f \n",a,b); return 0; }

1, 1.000000

0, 0.000000

39.

What will be the output of the following 'C' code? #include int main() { int a; a=5^ 8-3*2; printf("%d",a); return 0; }

40.

What will be the output of the following 'C' code? #include int main() { int x=10,y=-20; x=!x; y=!y; printf("x= %d, y= %d", x,y); return 0; }

x= 0, y= 0

x= 1, y= 1

41.

What will be the output of the following 'C' code? #include int main() { int x=3,y=4,z=4; printf("ans= %d", z>=y&&y>=x?1:0); return 0; }

ans= 1

ans= 0

42.

What will be the output of the following 'C' code? #include int main() { int x=3,y=4,z=4; printf("ans= %d", (z>=y>=x?100:200)); return 0; }

ans= 100

ans= 200

43.

What will be the output of the following 'C' code? #include int main() { int a=10,b=10; printf("ans= %d",a>b?a*a:b/b); return 0; }

ans= 1

ans= 0

44.

What will be the output of the following 'C' code? #include int main() { int a=10,b=20,c=30; c=(10,20)==(c,b); printf("%d",c); return 0; }

ans= 1

ans= 0

45.

What will be the output of the following 'C' code? #include int main() { int a=10,b=20,c=30; c==a==b; printf("%d%d%d",a,b,c); return 0; }

10 20 30

10 20 0

46.

What will be the output of the following 'C' code? #include int main() { int k=12,n=30; k=(n=4 && n==4?100:200); printf("k= %d",n) ; return 0; }

k= 200

k= 100

47.

What will be the output of the following 'C' code? #include int main() { int a=10,b=20,c=30; printf("ans= %d",a>b? a>c?a:c : b>c?b:c); return 0; }

ans= 30

ans= 20

48.

What will be the output of the following 'C' code? #include int main() { int a=5,b=10; a+=b; printf("%d",a); return 0; }

49.

What will be the output of the following 'C' code? #include int main() { int x=2,y=3; printf("%d",x*y++); return 0; }

50.

#include main()

{ int i=10,j; j=++i++; printf("%d%d",i,j); }

4 lines

51.

#include main()

{ inti=10,j=11,k,l; k=i+++j; l=i+++++j; printf("%d%d",l,k); }

4 lines

52.

#include main()

{ int x=20,y=35; x=y++ + x++; y=++y + ++x; printf("%d%d",x,y); }

4 lines

53.

#include main()

{ int i=0,j=1,k=2,l; l=++i&&j++||++k; printf("%d %d %d %d",i,j,k,l); }

4 lines

54.

#include main()

{ float a=0.5; int c; c=a<0.5; printf("%d",c); }

4 lines

55.

#include main()

{ int a=0,b=0; ++a==0||++b==||; printf("%d%d",a,b); }

4 lines

56.

#include main()

{ int c=- -2; printf("%d",c); }

4 lines

57.

#include main()

{ int i=5; printf("%d%d%d%d%d",i++,i--,++i,--i,i); }

4 lines

58.

#include int main()

{ int a = 2,b = 5; a = a^b; b = b^a; printf("%d %d",a,b); return 0; }

4 lines

59.

#include int main()

{ int a = 2,b = 5; a = a^b; b = b^a; printf("%d %d",a,b); return 0; }

4 lines

60.

#include int main() { printf(" \"%%d %%f\"",123,123.2); }

4 lines

Reset

C BASIC&OPERATORSQUIZFINAL

Total questions: 60

Worksheet time: 3600secs

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