This document contains 10 multiple choice questions about C programming concepts like data types, operators, loops, functions, and file handling. Each question is followed by 4 possible answers and an explanation of the correct answer. Topics covered include integer ranges and binary representations, return values of scanf and printf functions, operator precedence, conditional statements, looping, and the file handling function open.

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Q1. If an integer need 2 bytes of storage then the maximum value of an signed integer is:
a) 216
-1
b) 215
-1
c) 216
d) 215
Ans b
Explanation: In signed magnitude form one bit is used to store the sign so only 15 bits are
available to store the value.
Q2. If cse is an input then the following program fragment results in
Char x,y,z;
Printf(“%d”,scanf(“%c”, “%c”, “%c”,&x,&y,&z)); results in
a) Syntax error
b) A fatal error
c) Segmentation violation
d) Printing of 3
Ans d
Explanation: Scanf() function returns number of successful matches I.e. 3 in this case
Q3 The statement printf(“%d”,sizeof(“”)); prints
a) An error message b) 0 c) garbage d) 1
Ans d
Q4 The following program fragment:
if (a=5)
printf(“a is five”);
else
printf(“a is not five”);
result in the printing of
a) a is five
b) a is not five
c) nothing
d) garbage
ans a
q5 main()

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{
Int i=5;
i=(++i)/(i++);
printf(“%d”,i);
}
prints:
a) 2 b) 5 c) 1 d) 6
Ans a
Q6 The statement printf(“%d”,10?0?5:11:12);
prints:
a) 10 b) 0 c) 12 d) 11
Ans d
Q7 if you are using “open” function for opening a file the file handle should be of--------type
a)FILE
b) int
c) char
d)none of the above
ans a;
Q8 What will be the output of following program:
#define ISLOWER(a)(a>=97&&a<=127)
#define TOUPPER(a)(a=a-32)
int main()
{
char ch=’c’;
if(ISLOWER(ch))
ch=TOUPPER(ch);
printf(“%c”,ch);
}
Ans a)C b)c c)99 d) None of the above
Q9.
Find the output of program:
int main()
{
int i;

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for(i=-1;i<=10;i++)
{
if(i<5)
continue;
else
break;
printf("gets printed only once");
}
}
Ans a)No output b) Gets Printed only once c)Error d) None
Q10
Find the output of program:
int main()
{
if(printf("C for yourself how it worksn"))
getch();
}
a) Error b) C for yourself how it works c) none
e) C for yourself how it works
C for yourself how it works
C for yourself how it works
C for yourself how it works
----------------------------------
Ans b