1.What will be the output of the program?#include
int main(){ typedef float f; static f *fptr; float fval = 90;
fptr = &fval; printf("%f\n", *fptr); return 0;}
A.9
B.0
C.90.000000
D.90
Answer:OptionCLearn more problems on :TypedefDiscuss about this
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2.Which of the following statements are correct about the
program?#include
int main(){ unsigned int num; int i; scanf("%u", &num);
for(i=0; ii)].z); return 0;}
A.Nagpur, Chennai, Bangalore
B.agpur, hennai, angalore
C.agpur, Chennai, angalore
D.agpur, Bangalore, Bangalore
Answer:OptionDLearn more problems on :Complicated
DeclarationsDiscuss about this problem :Discuss in Forum
8.What will the functionrewind()do?
A.Reposition the file pointer to a character reverse.
B.Reposition the file pointer stream to end of file.
C.Reposition the file pointer to begining of that line.
D.Reposition the file pointer to begining of file.
Answer:OptionDExplanation:rewind()takes the file pointer to the
beginning of the file. so that the next I/O operation will take
place at the beginning of the
file.Example:rewind(FilePointer);Learn more problems on :Library
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9.What is the purpose offflush()function.
A.flushes all streams and specified streams.
B.flushes only specified stream.
C.flushes input/output buffer.
D.flushes file buffer.
Answer:OptionAExplanation:"fflush()" flush any buffered output
associated with filename, which is either a file opened for writing
or a shell command for redirecting output to a pipe or
coprocess.Example:fflush(FilePointer);fflush(NULL);flushes all
streams.Learn more problems on :Library FunctionsDiscuss about this
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10.What will be the output of the program ?#include
int main(){ int i=4, j=8; printf("%d, %d, %d\n", 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
Answer:OptionALearn more problems on :Structures, Unions,
EnumsDiscuss about this problem :Discuss in Forum
11.Every function must return a value
A.Yes
B.No
Answer:OptionBExplanation:No, If a function return type is
declared asvoidit cannot return any value.Learn more problems on
:FunctionsDiscuss about this problem :Discuss in Forum
12.In a function tworeturnstatements should never occur.
A.Yes
B.No
Answer:OptionBExplanation:No, In a function tworeturnstatements
can occur but not successively.Example:
#include int mul(int, int); /* Function prototype */
int main(){ int a = 0, b = 3, c; c = mul(a, b); printf("c =
%d\n", c); return 0;}
/* Two return statements in the mul() function */int mul(int a,
int b){ if(a == 0 || b == 0) { return 0; } else { return (a * b);
}}Output:c = 0Learn more problems on :FunctionsDiscuss about this
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13.What will be the output of the program?#includeint main(){
int X=40; { int X=20; printf("%d ", X); } printf("%d\n", X); return
0;}
A.40 40
B.20 40
C.20
D.Error
Answer:OptionBExplanation:In case of a conflict between a local
variable and global variable, the local variable gets
priority.Learn more problems on :Declarations and
InitializationsDiscuss about this problem :Discuss in Forum
14.What would be the equivalent pointer expression for referring
the array elementa[i][j][k][l]
A.((((a+i)+j)+k)+l)
B.*(*(*(*(a+i)+j)+k)+l)
C.(((a+i)+j)+k+l)
D.((a+i)+j+k+l)
Answer:OptionBLearn more problems on :PointersDiscuss about this
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15.Which of the statements is correct about the
program?#include
int main(){ int arr[3][3] = {1, 2, 3, 4}; printf("%d\n",
*(*(*(arr)))); return 0;}
A.Output: Garbage value
B.Output: 1
C.Output: 3
D.Error: Invalid indirection
Answer:OptionDLearn more problems on :PointersDiscuss about this
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16.va_listis an array that holds information needed
byva_argandva_end
A.True
B.False
Answer:OptionALearn more problems on :Variable Number of
ArgumentsDiscuss about this problem :Discuss in Forum
17.Which bitwise operator is suitable for turning off a
particular bit in a number?
A.&& operator
B.& operator
C.|| operator
D.! operator
Answer:OptionBLearn more problems on :Bitwise OperatorsDiscuss
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18.Which of the following special symbol allowed in a variable
name?
A.* (asterisk)
B.| (pipeline)
C.- (hyphen)
D._ (underscore)
Answer:OptionDExplanation:Variable names in C are made up of
letters (upper and lower case) and digits. The underscore character
("_") is also permitted. Names must not begin with a
digit.Examplesof valid (but not very descriptive) C variable
names:=> foo=> Bar=> BAZ=> foo_bar=> _foo42=>
_=> QuUxLearn more problems on :Declarations and
InitializationsDiscuss about this problem :Discuss in Forum
19.Point out the error, if any in the program.#includeint
main(){ int i = 1; switch(i) { printf("This is c program."); case
1: printf("Case1"); break; case 2: printf("Case2"); break; }return
0;}
A.Error: No default specified
B.Error: Invalidprintfstatement afterswitchstatement
C.No Error and prints "Case1"
D.None of above
Answer:OptionCExplanation:switch(i)becomesswitch(1), then
thecase 1:block is get executed. Hence it prints
"Case1".printf("This is c program.");is ignored by the
compiler.Hence there is no error and prints "Case1".Learn more
problems on :Control InstructionsDiscuss about this problem
:Discuss in Forum
20.The prototypes of all standard library string functions are
declared in the filestring.h.
A.Yes
B.No
Answer:OptionAExplanation:string.his the header in the C
standard library for the C programming language which contains
macro definitions, constants, and declarations of functions and
types used not only for string handling but also various memory
handling functions.Learn more problems on :Library FunctionsDiscuss
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1.Which of the following statements are correct about the below
C-program?#includeint main(){ int x = 10, y = 100%90, i; for(i=1;
i5 ? (num 5 ? (num
