C Programming Practice - Test 3

20 Questions | By Nchaudhuri31 | Last updated: Mar 21, 2022 | Total Attempts: 171

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. Dear Learner, This Assessment consists of questions to test your understanding on - C Programming Basics You may attempt the same and clarify doubts in WP Group. / With your Faculty Member Regards, Team SHIVAM

Questions and Answers

1.

What will be output if you will compile and execute the following c code? void main() { float a=5.2; if(a==5.2) printf("Equal"); else if(a
- A.
  
  Less than
- B.
  
  Equal
- C.
  
  Greter than
- D.
  
  Compilation error
2.

What will be output if you will compile and execute the following c code? void main() { int a=2; if(a==2) { a=~a+2
- A.
  
  -3
- B.
  
  -2
- C.
  
  1
- D.
  
  Compilation error
3.

What will be output if you will compile and execute the following c code? void main() { int i=10; static int x=i; if(x==i) printf("Equal"); else if(x>i) printf("Greater than"); else printf("Less than"); }
- A.
  
  Less than
- B.
  
  Equal
- C.
  
  Greter than
- D.
  
  Compilation error
4.

What will be output if you will compile and execute the following c code? main() { float me = 1.1; double you = 1.1; if(me==you) printf("I love U"); else printf("I hate U"); }
- A.
  
  I love U
- B.
  
  I hate U
- C.
  
  Compiler Error
- D.
  
  None of These
5.

What will be output if you will compile and execute the following c code? main() { static int var = 5; printf("%d ",var--); if(var) main(); }
- A.
  
  4 3 2 1
- B.
  
  Compilation Error
- C.
  
  5 4 3 2 1
- D.
  
  5 4 3 2
6.

What will be output if you will compile and execute the following c code? main() { int i=1; while (i2) goto here; i++; }} fun() { here: printf("PP"); }
- A.
  
  1
- B.
  
  Pp
- C.
  
  Compiler Error
- D.
  
  None of These
7.

What will be output if you will compile and execute the following c code? #define FALSE -1 #define TRUE 1 #define NULL 0 main() { if(NULL) puts("NULL"); else if(FALSE) puts("TRUE"); else puts("FALSE"); }
- A.
  
  1
- B.
  
  Linter Error
- C.
  
  Compiler Error
8.

What will be output if you will compile and execute the following c code? #include int x; void main() { if (x) printf("hi"); else printf("how are u"); }
- A.
  
  Hi
- B.
  
  How are you
- C.
  
  Compile Time Error
- D.
  
  None of These
9.

Predict the output/error. main() { int a = 4, b = 4; switch(a) { case 3 : printf(“\n a is 3”); break; case b : printf(“\n a is 4”); // case b : is not possible break; // because constant is needed default : printf(“\n a is not 3 or 4”); } return 0; }
- A.
  
  Compilation error
- B.
  
  A is 4
- C.
  
  A is not 3 or 4
- D.
  
  A id 3
10.

The output of the code below is(when 1 is entered) #include void main() { double ch; printf("enter a value btw 1 to 2:"); scanf("%lf", &ch); switch (ch) // ch is declared as duble, but switch will accept { // always an integral value case 1: printf("1"); break; case 2: printf("2"); break; } }
- A.
  
  Compile time error
- B.
  
  1
- C.
  
  2
- D.
  
  No output
11.

What will be output if you will compile and execute the following c code? void main() { int a=2; if(a==2) { a=~a+2
- A.
  
  It will print nothing
- B.
  
  -3
- C.
  
  -2
- D.
  
  1
12.

The output of the following code will be main() { int y; scanf("%d",&y); // input given is 2000 if( (y%4==0 && y%100 != 0) || y%100 == 0 ) printf("%d is a leap year"); else printf("%d is not a leap year"); }
- A.
  
  2000 is a leap year
- B.
  
  2000 is not a leap year
- C.
  
  Compiler error
13.

The output of the following code will be main() { char c=' ', x, convert(z); getc(c); if((c>='a') && (c
- A.
  
  Garbage value
- B.
  
  32
- C.
  
  Compiler error
- D.
  
  ‘z’
14.

The output of the following code will be main() { int i =0;j=0; if(i && j++) printf("%d..%d",i++,j); printf("%d..%d,i,j); }
- A.
  
  1 0
- B.
  
  0..0
- C.
  
  1..1
- D.
  
  0..1
15.

The output of the following code will be main() { int a= 0;int b = 20;char x =1;char y =10; if(a,b,x,y) printf("hello"); }
- A.
  
  Hello
- B.
  
  Compiler error
- C.
  
  20
- D.
  
  10
16.

The output of the following code will be void main() { static int i=5; if(--i){ main(); printf("%d ",i); }
- A.
  
  5
- B.
  
  -4 -4 -4
- C.
  
  0 0 0 0
- D.
  
  3 3 3
17.

The output of the following code will be void main() { int i; char a[]="\0"; if(printf("%s\n",a)) printf("Ok here \n"); else printf("Forget it\n"); }
- A.
  
  OK here
- B.
  
  Compiler error
- C.
  
  Forget
- D.
  
  Print nothing
18.

The output of the following code will be void main() { while(1){ if(printf("%d",printf("%d"))) break; else continue; }
- A.
  
  Garbage value
- B.
  
  Compiler error
- C.
  
  % d
- D.
  
  Print nothing
19.

The output of the following code will be #include main() { int x,y=2,z,a; if(x=y%2) z=2; a=2; printf("%d %d ",z,x); }
- A.
  
  2 2
- B.
  
  50 50
- C.
  
  0 0
- D.
  
  Garbage 0
20.

The output of the following code will be main() { int i=10,j=20; j = i, j?(i,j)?i:j:j; printf("%d %d",i,j); }
- A.
  
  20 20
- B.
  
  10 10
- C.
  
  0 0
- D.
  
  Garbage values