C-Language Programming MCQs > FREE SET - 4

	1. What will be the output of the program given below? #include int main() { enum status { pass, fail, atkt}; enum status stud1, stud2, stud3; stud1 = pass; stud2 = atkt; stud3 = fail; printf("%d, %d, %d", stud1, stud2, stud3); return 0; }
	A 0, 1, 2 B 1, 2, 3 C 0, 2, 1 D 1, 3, 2 Free MCQs www.sharemcq.com     Answer: Option C Explanation: Available Soon. Workspace View Answer Workspace

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	2. What will be the output of the program in Turbo C (in DOS 16-bit OS)? #include int main() { char *s1; char far *s2; char huge *s3; printf("%d, %d, %d", sizeof(s1), sizeof(s2), sizeof(s3)); return 0; }
	A 2, 4, 6 B 4, 4, 2 C 2, 4, 4 D 2, 2, 2 Free MCQs www.sharemcq.com     Answer: Option C Explanation: Available Soon. Workspace View Answer Workspace

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	3. What will be the output of the program? #include int main() { struct emp { char name[20]; int age; float sal; }; struct emp e = {"Tiger"}; printf("%d, %f", e.age, e.sal); return 0; }
	A 0, 0.000000 B Garbage values C Error D None of above Free MCQs www.sharemcq.com     Answer: Option A Explanation: Available Soon. Workspace View Answer Workspace

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	4. What will be the output of the following program? #include int X=40; int main() { int X=20; printf("%d", X); return 0; }
	A 20 B 40 C Error D No Output Free MCQs www.sharemcq.com     Answer: Option A Explanation: Available Soon. Workspace View Answer Workspace

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	5. What will be the output of the program? #include int main() { int x = 10, y = 20, z = 5, i; i = x < y < z; printf("%d", i); return 0; }
	A 0 B 1 C Error D None of these Free MCQs www.sharemcq.com     Answer: Option B Explanation: Available Soon. Workspace View Answer Workspace

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	6. What will be the output of the following program? #include int main() { int a[5] = {2, 3}; printf("%d, %d, %d", a[2], a[3], a[4]); return 0; }
	A Garbage Value B 2, 3, 3 C 3, 2, 2 D 0, 0, 0 Free MCQs www.sharemcq.com     Answer: Option D Explanation: Available Soon. Workspace View Answer Workspace

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	7. What will be the output of the following program? #include int main() { union a { int i; char ch[2]; }; union a u; u.ch[0] = 3; u.ch[1] = 2; printf("%d, %d, %d", u.ch[0], u.ch[1], u.i); return 0; }
	A 3, 2, 515 B 515, 2, 3 C 3, 2, 5 D None of these Free MCQs www.sharemcq.com     Answer: Option A Explanation: Available Soon. Workspace View Answer Workspace

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	8. In the following program how long will the for loop get executed? #include int main() { int i=5; for(;scanf("%s", &i); printf("%d", i)); return 0; }
	A The for loop would not get executed at all B The for loop would get executed only once C The for loop would get executed 5 times D The for loop would get executed infinite times Free MCQs www.sharemcq.com     Answer: Option D Explanation: Available Soon. Workspace View Answer Workspace

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	9. What will be the output of the following program? #include int main() { int X=40; { int X=20; printf("%d", X); } printf("%d", X); return 0; }
	A 40 40 B 20 40 C 20 D Error Free MCQs www.sharemcq.com     Answer: Option B Explanation: Available Soon. Workspace View Answer Workspace

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	10. Point out the error in the following program #include int main() { void v = 0; printf("%d", v); return 0; }
	A Error: Declaration syntax error 'v' (or) Size of v is unknown or zero. B Program terminates abnormally. C No error. D None of these. Free MCQs www.sharemcq.com     Answer: Option A Explanation: Available Soon. Workspace View Answer Workspace

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	11. Point out the error in the following program #include struct emp { char name[20]; int age; }; int main() { emp int xx; int a; printf("%d", &a); return 0; }
	A Error: in printf B Error: in emp int xx; C No error. D None of these. Free MCQs www.sharemcq.com     Answer: Option B Explanation: Available Soon. Workspace View Answer Workspace

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	12. Which of the following is correct about err used in the declaration given below? typedef enum error { warning, test, exception } err;
	A It is a typedef for enum error. B It is a variable of type enum error. C The statement is erroneous. D It is a structure. Free MCQs www.sharemcq.com     Answer: Option A Explanation: Available Soon. Workspace View Answer Workspace

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	13. Point out the error in the following program #include int main() { int (*p)() = fun; (*p)(); return 0; } int fun() { printf("Microsoft.com"); return 0; }
	A Error: in int(*p)() = fun; B Error: fun() prototype not defined C No error D None of these Free MCQs www.sharemcq.com     Answer: Option B Explanation: Available Soon. Workspace View Answer Workspace

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	14. Which of the following declaration is correct?
	A int length; B char int; C int long; D float double; Free MCQs www.sharemcq.com     Answer: Option A Explanation: Available Soon. Workspace View Answer Workspace

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	15. Which of the following operations are INCORRECT?
	A int i = 35; i = i%5; B short int j = 255; j = j; C long int k = 365L; k = k; D float a = 3.14; a = a%3; Free MCQs www.sharemcq.com     Answer: Option D Explanation: Available Soon. Workspace View Answer Workspace

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	16. Which of the following correctly represents a long double constant?
	A 6.68 B 6.68L C 6.68f D 6.68LF Free MCQs www.sharemcq.com     Answer: Option B Explanation: Available Soon. Workspace View Answer Workspace

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	17. What are the different types of real data type in C Language?
	A float, double B short int, double, long int C float, double, long double D double, long int, float Free MCQs www.sharemcq.com     Answer: Option C Explanation: Available Soon. Workspace View Answer Workspace

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	18. What will you do to treat the constant 3.14 as a long double?
	A use 3.14LD B use 3.14L C use 3.14DL D use 3.14LF Free MCQs www.sharemcq.com     Answer: Option B Explanation: Available Soon. Workspace View Answer Workspace

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	19. Which statement will you add in the following program to work it correctly? #include int main() { printf("%f", log(36.0)); return 0; }
	A #include B #include C #include D #include Free MCQs www.sharemcq.com     Answer: Option B Explanation: Available Soon. Workspace View Answer Workspace

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	20. What will be the output of the following program? #include int main() { float a=0.7; if(a < 0.7) printf("C"); else printf("C++"); return 0; }
	A C B C++ C Compiler error D None of above Free MCQs www.sharemcq.com     Answer: Option A Explanation: Available Soon. Workspace View Answer Workspace

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	21. What will be the output of the following program? #include int main() { float fval=7.29; printf("%d", (int)fval); return 0; }
	A 0 B 0.0 C 7.0 D 7 Free MCQs www.sharemcq.com     Answer: Option D Explanation: Available Soon. Workspace View Answer Workspace

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	22. What will be the output of the following program? #include #include int main() { printf("%f", sqrt(36.0)); return 0; }
	A 6.0 B 6 C 6.000000 D Error: Prototype sqrt() not found. Free MCQs www.sharemcq.com     Answer: Option C Explanation: Available Soon. Workspace View Answer Workspace

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	23. What will be the output of the following program? #include #include int main() { printf("%d, %d, %d", sizeof(3.14f), sizeof(3.14), sizeof(3.14l)); return 0; }
	A 4, 4, 4 B 4, 8, 8 C 4, 8, 10 D 4, 8, 12 Free MCQs www.sharemcq.com     Answer: Option C Explanation: Available Soon. Workspace View Answer Workspace

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	24. What will be the output of the following program? #include int main() { float a=0.7; if(a < 0.7f) printf("C"); else printf("C++"); return 0; }
	A C B C++ C Compiler error D None of above Free MCQs www.sharemcq.com     Answer: Option B Explanation: Available Soon. Workspace View Answer Workspace

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	25. What will be the output of the following program? #include #include int main() { float n=1.54; printf("%f, %f", ceil(n), floor(n)); return 0; }
	A 2.000000, 1.000000 B 1.500000, 1.500000 C 1.550000, 2.000000 D 1.000000, 2.000000 Free MCQs www.sharemcq.com     Answer: Option A Explanation: Available Soon. Workspace View Answer Workspace

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	26. What will be the output of the following program? #include int main() { static char *s[] = {"black", "white", "pink", "violet"}; char **ptr[] = {s+3, s+2, s+1, s}, ***p; p = ptr; ++p; printf("%s", **p+1); return 0; }
	A ink B ack C ite D let Free MCQs www.sharemcq.com     Answer: Option A Explanation: Available Soon. Workspace View Answer Workspace

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	27. What will be the output of the following program? #include int main() { int i=3, *j, k; j = &i; printf("%d", i**j*i+*j); return 0; }
	A 30 B 27 C 9 D 3 Free MCQs www.sharemcq.com     Answer: Option A Explanation: Available Soon. Workspace View Answer Workspace

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	28. What will be the output of the following program? #include int main() { int x=30, *y, *z; y=&x; /* Assume address of x is 500 and integer is 4 byte size */ z=y; *y++=*z++; x++; printf("x=%d, y=%d, z=%d", x, y, z); return 0; }
	A x=31, y=502, z=502 B x=31, y=500, z=500 C x=31, y=498, z=498 D x=31, y=504, z=504 Free MCQs www.sharemcq.com     Answer: Option D Explanation: Available Soon. Workspace View Answer Workspace

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	29. What will be the output of the following program? #include int main() { char str[20] = "Hello"; char *const p=str; *p='M'; printf("%s", str); return 0; }
	A Mello B Hello C HMello D MHello Free MCQs www.sharemcq.com     Answer: Option A Explanation: Available Soon. Workspace View Answer Workspace

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	30. What will be the output of the following program if the integer is 4 bytes long? #include int main() { int ***r, **q, *p, i=8; p = &i; q = &p; r = &q; printf("%d, %d, %d", *p, **q, ***r); return 0; }
	A 8, 8, 8 B 4000, 4002, 4004 C 4000, 4004, 4008 D 4000, 4008, 4016 Free MCQs www.sharemcq.com     Answer: Option A Explanation: Available Soon. Workspace View Answer Workspace

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	31. What will be the output of the following program? #include int main() { char *str; str = "%s"; printf(str, "K"); return 0; }
	A Error B No output C K D %s Free MCQs www.sharemcq.com     Answer: Option C Explanation: Available Soon. Workspace View Answer Workspace

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	32. What will be the output of the following program if the size of pointer is 4-bytes? #include int main() { printf("%d, %d", sizeof(NULL), sizeof("")); return 0; }
	A 2, 1 B 2, 2 C 4, 1 D 4, 2 Free MCQs www.sharemcq.com     Answer: Option C Explanation: Available Soon. Workspace View Answer Workspace

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	33. What will be the output of the following program? #include int main() { int arr[2][2][2] = {10, 2, 3, 4, 5, 6, 7, 8}; int *p, *q; p = &arr[1][1][1]; q = (int*) arr; printf("%d, %d", *p, *q); return 0; }
	A 8, 10 B 10, 2 C 8, 1 D Garbage values Free MCQs www.sharemcq.com     Answer: Option A Explanation: Available Soon. Workspace View Answer Workspace

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	34. What will be the output of the following program? #include int main() { int arr[3] = {2, 3, 4}; char *p; p = arr; p = (char*)((int*)(p)); printf("%d, ", *p); p = (int*)(p+1); printf("%d", *p); return 0; }
	A 2, 3 B 2, 0 C 2, Garbage value D 0, 0 Free MCQs www.sharemcq.com     Answer: Option B Explanation: Available Soon. Workspace View Answer Workspace

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	35. What will be the output of the following program? #include int main() { char *str; str = "%d"; str++; str++; printf(str-2, 300); return 0; }
	A No output B 30 C 3 D 300 Free MCQs www.sharemcq.com     Answer: Option D Explanation: Available Soon. Workspace View Answer Workspace

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	36. What will be the output of the following program? #include int main() { char str[] = "peace"; char *s = str; printf("%s", s++ +3); return 0; }
	A peace B eace C ace D ce Free MCQs www.sharemcq.com     Answer: Option D Explanation: Available Soon. Workspace View Answer Workspace

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	37. What will be the output of the following program? #include int main() { char *p; p="hello"; printf("%s", *&*&p); return 0; }
	A llo B hello C ello D h Free MCQs www.sharemcq.com     Answer: Option B Explanation: Available Soon. Workspace View Answer Workspace

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	38. If the size of integer is 4bytes, what will be the output of the following program? #include int main() { int arr[] = {12, 13, 14, 15, 16}; printf("%d, %d, %d", sizeof(arr), sizeof(*arr), sizeof(arr[0])); return 0; }
	A 10, 2, 4 B 20, 4, 4 C 16, 2, 2 D 20, 2, 2 Free MCQs www.sharemcq.com     Answer: Option B Explanation: Available Soon. Workspace View Answer Workspace

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	39. Point out the compile time error in the program given below. #include int main() { int *x; *x=100; return 0; }
	A Error: invalid assignment for x B Error: suspicious pointer conversion C No error D None of above Free MCQs www.sharemcq.com     Answer: Option C Explanation: Available Soon. Workspace View Answer Workspace

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	40. Point out the error in the program given below. #include int main() { int a[] = {10, 20, 30, 40, 50}; int j; for(j=0; j<5; j++) { printf("%d", a); a++; } return 0; }
	A Error: Declaration syntax B Error: Expression syntax C Error: LValue required D Error: Rvalue required Free MCQs www.sharemcq.com     Answer: Option C Explanation: Available Soon. Workspace View Answer Workspace

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	41. Which of the statements is correct about the program given below? #include int main() { int i=10; int *j=&i; return 0; }
	A j and i are pointers to an int B i is a pointer to an int and stores address of j C j is a pointer to an int and stores address of i D j is a pointer to a pointer to an int and stores address of i Free MCQs www.sharemcq.com     Answer: Option C Explanation: Available Soon. Workspace View Answer Workspace

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	42. Which of the statements is correct about the program? #include int main() { int arr[3][3] = {1, 2, 3, 4}; printf("%d", *(*(*(arr)))); return 0; }
	A Output: Garbage value B Output: 1 C Output: 3 D Error: Invalid indirection Free MCQs www.sharemcq.com     Answer: Option D Explanation: Available Soon. Workspace View Answer Workspace

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	43. How will you free the allocated memory?
	A remove(var-name); B free(var-name); C delete(var-name); D dalloc(var-name); Free MCQs www.sharemcq.com     Answer: Option B Explanation: Available Soon. Workspace View Answer Workspace

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	44. What is the similarity between a structure, union and enumeration?
	A All of them let you define new values B All of them let you define new data types C All of them let you define new pointers D All of them let you define new structures Free MCQs www.sharemcq.com     Answer: Option B Explanation: Available Soon. Workspace View Answer Workspace

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	45. What will be the output of the following program? #include int main() { enum days {MON=-1, TUE, WED=6, THU, FRI, SAT}; printf("%d, %d, %d, %d, %d, %d", MON, TUE, WED, THU, FRI, SAT); return 0; }
	A -1, 0, 1, 2, 3, 4 B -1, 2, 6, 3, 4, 5 C -1, 0, 6, 2, 3, 4 D -1, 0, 6, 7, 8, 9 Free MCQs www.sharemcq.com     Answer: Option D Explanation: Available Soon. Workspace View Answer Workspace

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	46. What will be the output of the following program? #include int main() { int i=4, j=8; printf("%d, %d, %d", i|j&j|i, i|j&j|i, i^j); return 0; }
	A 12, 12, 12 B 112, 1, 12 C 32, 1, 12 D -64, 1, 12 Free MCQs www.sharemcq.com     Answer: Option A Explanation: Available Soon. Workspace View Answer Workspace

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	47. Which of the following statements correct about the below code? maruti.engine.bolts=25;
	A Structure bolts is nested within structure engine. B Structure engine is nested within structure maruti. C Structure maruti is nested within structure engine. D Structure maruti is nested within structure bolts. Free MCQs www.sharemcq.com     Answer: Option B Explanation: Available Soon. Workspace View Answer Workspace

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	48. What will be the output of the program (16-bit platform)? #include #include int main() { int *p; p = (int *)malloc(20); printf("%d", sizeof(p)); free(p); return 0; }
	A 4 B 2 C 8 D Garbage value Free MCQs www.sharemcq.com     Answer: Option B Explanation: Available Soon. Workspace View Answer Workspace

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	49. What will be the output of the following program? #include int main() { int i; i = scanf("%d %d", &i, &i); printf("%d", i); return 0; }
	A 1 B 2 C Garbage value D Error: cannot assign scanf to variable Free MCQs www.sharemcq.com     Answer: Option B Explanation: Available Soon. Workspace View Answer Workspace

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	50. How many times the while loop will get executed if a short int is 2 byte wide? #include int main() { int j=1; while(j <= 255) { printf("%c %d", j, j); j++; } return 0; }
	A Infinite times B 255 times C 256 times D 254 times Free MCQs www.sharemcq.com     Answer: Option B Explanation: Available Soon. Workspace View Answer Workspace

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