z = x + y * z / 4 % 2-1

Transcription

1 1.Which of the following statements should be used to obtain a remainder after dividing 3.14 by 2.1? A. rem = 3.14 % 2.1; B. rem = modf(3.14, 2.1); C. rem = fmod(3.14, 2.1); D. Remainder cannot be obtain in floating point division. 2. Which of the following special symbol allowed in a variable name? A. * (asterisk) B. (pipeline) C. - (hyphen) D. _ (underscore) 3. Which of the following is not logical operator? A. & B. && C. D.! 4. Which of the following is the correct order of evaluation for the below expression? z = x + y * z / 4 % 2-1 A. * / % + - = B. = * / % + - C. / * % - + = D. * % / - + = 5. Which of the following correctly shows the hierarchy of arithmetic operations in C? A. / + * - B. * - / + C. + - / * D. / * Which of the following is the correct usage of conditional operators used in C? A. a>b? c=30 : c=40; B. a>b? c=30;

2 C. max = a>b? a>c?a:c:b>c?b:c D. return (a>b)?(a:b) 7. What are the different types of real data type in C? A. float, double B. short int, double, long int C. float, double, long double D. double, long int, float 8. 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 9. 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 10.The keyword used to transfer control from a function back to the calling function is A. switch B. goto C. go back D. return 11. What will happen if in a C program you assign a value to an array element whose subscript exceeds the size of array? A. The element will be set to 0. B. The compiler would report an error. C. The program may crash if some important data gets overwritten. D. The array size would appropriately grow. 12.In C, if you pass an array as an argument to a function, what actually gets passed? A. Value of elements in array

3 B. First element of the array C. Base address of the array D. Address of the last element of array 13 Which of the following function sets first n characters of a string to a given character? A. strinit() B. strnset() C. strset() D. strcset() 14. If the two strings are identical, then strcmp() function returns A. -1 B. 1 C. 0 D. Yes 15.Which of the following function is used to find the first occurrence of a given string in another string? A. strchr() B. strrchr() C. strstr() D. strnset() 16.Which of the following function is more appropriate for reading in a multi-word string? A. printf(); B. scanf(); C. gets(); D. puts(); 17.To print out a and b given below, which of the following printf() statement will you use?

4 float a=3.14; double b=3.14; A. printf("%f %lf", a, b); B. printf("%lf %f", a, b); C. printf("%lf %Lf", a, b); D. printf("%f %Lf", a, b); 18.In which numbering system can the binary number be easily converted to? A. Decimal system B. Hexadecimal system C. Octal system D. No need to convert 19.Which bitwise operator is suitable for turning off a particular bit in a number? A. && operator B. & operator C. operator D.! operator 20.Which bitwise operator is suitable for checking whether a particular bit is on or off? A. && operator B. & operator C. operator D.! operator

5 21.How many times "Welcome" is get printed? int x; for(x=-1; x<=10; x++) if(x < 5) continue; else break; printf("welcome"); A. Infinite times B. 11 times C. 0 times D. 10 times 22.How many times the while loop will get executed if a short int is 2 byte wide? int j=1; while(j <= 255) printf("%c %d\n", j, j); j++; A. Infinite times B. 255 times C. 256 times D. 254 times 23.In mathematics and computer programming, which is the correct order of mathematical operators? A. Addition, Subtraction, Multiplication, Division B. Division, Multiplication, Addition, Subtraction C. Multiplication, Addition, Division, Subtraction

6 D. Addition, Division, Modulus, Subtraction 24.Which of the following cannot be checked in a switch-case statement? A. Character B. Integer C. Float D. enum 25.Which of the following function is correct that finds the length of a string? A. int xstrlen(char *s) int length=0; while(*s!='\0') length++; s++; return (length); B. int xstrlen(char s) int length=0; while(*s!='\0') length++; s++; return (length); C. int xstrlen(char *s) int length=0; while(*s!='\0') length++; return (length); D. int xstrlen(char *s) int length=0; while(*s!='\0') s++; return (length); 26.When we mention the prototype of a function? A. Defining B. Declaring C. Prototyping D. Calling 27.By default a real number is treated as a A. float B. double C. long double D. far double

7 28.Identify which of the following are declarations 1 : extern int x; 2 : float square ( float x )... 3 : double pow(double, double); A. 1 B. 2 C. 1 and 3 D Which of the following cannot be checked in a switch-case statement? A. Character B. Integer C. Float D. enum 30.A function cannot be defined inside another function A. True B. False 31.Which of the following statements are correct about the program? printf("%p\n", main()); A. It prints garbage values infinitely B. Runs infinitely without printing anything C. Error: main() cannot be called inside printf() D. No Error and print nothing

8 32. Which of the following statements are correct about the function? long fun(int num) int i; long f=1; for(i=1; i<=num; i++) f = f * i; return f; A. The function calculates the value of 1 raised to power num. B. The function calculates the square root of an integer C. The function calculates the factorial value of an integer D. None of above 33. What will be the output of the program in 16 bit platform (Turbo C under DOS)? int fun(); int i; i = fun(); printf("%d\n", i); int fun() _AX = 1990; A. Garbage value B. 0 (Zero) C D. No output

9 34. Will the program compile successfully? char a[] = "India"; char *p = "BIX"; a = "BIX"; p = "India"; printf("%s %s\n", a, p); A. Yes B. No 35.What will be the output of the program? #include<string.h> char str1[20] = "Hello", str2[20] = " World"; printf("%s\n", strcpy(str2, strcat(str1, str2))); A. Hello B. World C. Hello World D. WorldHello 36. What will be the output of the program? char p[] = "%d\n"; p[1] = 'c'; printf(p, 65); A. A B. a C. c D. 65

10 37. What will be the output of the program? #include<string.h> printf("%d\n", strlen("123456")); A. 6 B. 12 C. 7 D What will be the output of the program? printf(5+"good Morning\n"); A. Good Morning B. Good C. M D. Morning 39.If the size of pointer is 4 bytes then What will be the output of the program? char *str[] = "Frogs", "Do", "Not", "Die", "They", "Croak!"; printf("%d, %d", sizeof(str), strlen(str[0])); A. 22, 4 B. 25, 5 C. 24, 5 D. 20, 2

11 40. Which of the following statements are correct? 1: A string is a collection of characters terminated by '\0'. 2: The format specifier %s is used to print a string. 3: The length of the string can be obtained by strlen(). 4: The pointer CANNOT work on string. A. 1, 2 B. 1, 2, 3 C. 2, 4 D. 3, Which of the following statement is correct? A. strcmp(s1, s2) returns a number less than 0 if s1>s2 B. strcmp(s1, s2) returns a number greater than 0 if s1<s2 C. strcmp(s1, s2) returns 0 if s1==s2 D. strcmp(s1, s2) returns 1 if s1==s2 42. What will be the output of the program? int i=-3, j=2, k=0, m; m = ++i && ++j && ++k; printf("%d, %d, %d, %d\n", i, j, k, m); A. -2, 3, 1, 1 B. 2, 3, 1, 2 C. 1, 2, 3, 1 D. 3, 3, 1, 2

12 43. Assunming, integer is 2 byte, What will be the output of the program? printf("%x\n", -2<<2); A. ffff B. 0 C. fff8 D. Error 44. What will be the output of the program? int x=12, y=7, z; z = x!=4 y == 2; printf("z=%d\n", z); A. z=0 B. z=1 C. z=4 D. z=2 45. The expression of the right hand side of operators doesn't get evaluated if the left hand side determines the outcome. A. True B. False 46.In the expression a=b=5 the order of Assignment is NOT decided by Associativity of operators A. True B. False 47.Associativity of an operator is either Left to Right or Right to Left. A. True B. False

13 48. Are the following two statement same? 1. a <= 20? (b = 30): (c = 30); 2. (a <=20)? b : (c = 30); A. Yes B. No 49. What will be the output of the program? int i=0; for(; i<=5; i++); printf("%d", i); A. 0, 1, 2, 3, 4, 5 B. 5 C. 1, 2, 3, 4 D What will be the output of the program? char str[]="c-program"; int a = 5; printf(a >10?"Ps\n":"%s\n", str); A. C-program B. Ps C. Error D. None of above

14 51.Point out the error, if any in the for loop. int i=1; for(;;) printf("%d\n", i++); if(i>10) break; A. There should be a condition in the for loop B. The two semicolons should be dropped C. The for loop should be replaced with while loop. D. No error 52. Point out the error, if any in the program. int a = 10; switch(a) printf("this is c program."); A. Error: No case statement specified B. Error: No default specified C. No Error D. Error: infinite loop occurs

15 53. A short integer is at least 16 bits wide and a long integer is at least 32 bits wide. A. True B. False 54. If scanf() is used to store a value in a char variable then along with the value a carriage return(\r) also gets stored it. A. True B. False 55. The modulus operator cannot be used with a long double. A. True B. False 56. The way the break is used to take control out of switch and continue to take control of the beginning of the switch? A. Yes B. No 57.We want to test whether a value lies in the range 2 to 4 or 5 to 7. Can we do this using aswitch? A. Yes B. No 58. By default, the data type of a constant without a decimal point is int, whereas the one with a decimal point is a double. A. Yes B. No 59. The way the break is used to take control out of switch and continue to take control of the beginning of the switch? A. Yes B. No 60.Can we use a switch statement to switch on strings? A. Yes B. No