Loop Questions and Answers
Loop Questions with Answers are among the most frequently asked topics in C programming aptitude and placement exams. These programming questions and answers test your understanding of iteration techniques such as for, while, and do-while loops. Practicing C loop MCQs with explanations helps you strengthen your logic-building skills and code efficiency. Commonly featured in Infosys, Accenture, and TCS placement papers, these loop-based problems prepare you for both theoretical and coding assessments. Access free C programming loop questions with answers PDF or take mock tests online for real exam experience.
Loop
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98 questions
51. Find the output void main ( ) { int i; switch (i) { case 1; printf ('%d", i++); case 2: printf ('%d", i++); case 3: printf('5d", i++); default ; printf ('bye"); } } }
- 123456789
- 123123123
- 123123123bye
- 123bye
52. Find the output void main ( ) { int x=3; while (x--){ int x=10; x--; printc('5d", x); } }
- 999999
- 999
- 2 1 0
- 3 2 1
53. Find the bug in the followig program 1. void main ( ) { 2. while (1) { 3. if (printf('5d', printf("%d', 5))) 4. printf("%d", 3); 5. brak; 6. } 7. }
- Line no. 3
- Line no. 4
- Line no. 5
- None of these
54. Find the output void main ( ) { unsigned int i; for (i=5; i>-1; i--) printf("cite"); }
- It will print 'cite' six times
- It will print 'cite' infinite times
- No output
- Compilation error
55. Find the output #define MAX 10 void main ( ) { int i; for (i=0; i<MAX; i++) { static int count; count+=count; } printf('5d", count); }
- 0
- 45
- 55
- Compilation error
56. Find the output void main ( ) { int x=2 while (++ (x--)==2) printf("MCA"); printf("MBA"); }
- MCAMCA.....
- MCAMBA
- MBA
- Compilation error
57. Find the output void main ( ) { int i; for (i=1; i<=3; i++) { print: printf("C"); printf("%d", i); } }
- Error; tag not allowed withing the loop
- 1 2 3
- C 1 C 2 C 3
- Garbage value
58. Find the output void main ( ) { unsigned char c='0'; while (++c<=255) printf ("%d", c); }
- Prints 48 to 255
- Prints 1 to 255
- Infinite loop
- None of these
59. Find the output void main ( ) char c1; int i=0; c1='a'; while (c>=='a' && c1<='z') { c1++; i++; } printf ('%d", i); }
- 25
- 26
- 123
- None of these
60. Find the output enum (false, true); void main ( ) { int i=1; do { printf ("%d", i); i++; if (i<5) continue; } while (false); }
- 123...15
- 1
- Compilation error
- None of these