C Programming
Multiple Choice Questions
1.) Developer of ‘C’ language is .
a.) Dennis Richie c.) Bill Gates
b.) Ken Thompson d.) Peter Norton
2.) C language developed in .
a.) 1970 c.) 1976
b.) 1972 d.) 1980
3.) C is level language.
a.) High c.) Middle
b.) Low d.) Machine
4.) C is available for which OS?
a.) DOS c.) Unix
b.) Windows d.) All of above
5.) Which symbol is used for pre-processor statement?
a.) ! b.) # c.) ~ d.) ;
6.) Which of the following is a scalar data type?
a.) Float c.) Array
b.) Union d.) Pointer
7.) Which of the following are tokens in C?
a.) Keywords c.) Constants
b.) Variables d.) All of above
8.) Which is the valid range of “int” data type?
a.) 0 to 256 c.) -32767 to +32768
b.) -32768 to +32767 d.) No particular range
9.) Which symbol is used to terminate a statement?
a.) ! b.) # c.) ~ d.) ;
10.) Which escape sequence character is a line terminator?
a.) \a b.) \b c.) \m d.) \n
11.) Which escape sequence character is used to beep from speaker?
a.) \a b.) \b c.) \m d.) \n
12.) Character constants should be enclosed between .
a.) Single Quotes c.) Both A and B
b.) Double Quotes d.) None of these
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13.) String constants should be enclosed between .
a.) Single Quotes c.) Both A and B
b.) Double Quotes d.) None of these
14.) Which of the following is invalid?
a.) ‘ ’ b.) “ ” c.) ‘a’ d.) ‘abc’
15.) The maximum length of a variable in C is .
a.) 8 b.) 16 c.) 32 d.) 64
16.) The maximum size of ‘float’ variable is .
a.) 1 byte b.) 2 bytes c.) 4 bytes d.) 8 bytes
17.) The maximum size of ‘double’ variable is .
a.) 1 byte b.) 2 bytes c.) 4 bytes d.) 8 bytes
18.) A declaration of float a; double b; occupies of memory.
a.) 1 byte b.) 6 bytes c.) 10 bytes d.) 12 bytes
19.) The size of a string variable is .
a.) 1 byte b.) 10 bytes c.) 20 bytes d.) Not specific
20.) Which is an example of compounded assignment statement?
a.) a=5 b.) a=b c.) a=b=c d.) a+=10
21.) The operator && is used for .
a.) Value assignment c.) Logical comparison
b.) Increment by 1 d.) Condition Checking
22.) The operator & is used for .
a.) Bitwise AND c.) Pointer to the variable
b.) Logical AND d.) None of these
23.) The equality operator is represented by .
a.) := b.) .EQ c.) = d.) ==
24.) Operator’s precedence determines which operator is .
a.) Faster c.) Take no argument
b.) Take less memory d.) Evaluated first
25.) The bitwise AND is used for .
a.) Masking c.) Division
b.) Comparison d.) Shifting bits
26.) The operator << is used for .
a.) Shifting bits to left c.) Equality Checking
b.) Shifting bits to right d.) None of these
27.) Which of the following has the HIGHEST precedence?
a.) * b.) == c.) => d.) +
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28.) The associability of = operator is .
a.) Right to Left c.) None of these
b.) Left to Right d.) All of above
29.) Which operator has LOWEST priority?
a.) ++ b.) % c.) || d.) ()
30.) Which operator has HIGHEST priority?
a.) () b.) || c.) % d.) ++
31.) Integer Division results in .
a.) Truncating the fractional part c.) Floating value
b.) Rounding the fractional part d.) An error is generated
32.) Which is a Ternary Operator?
a.) ? : b.) * c.) sizeof d.) ^
33.) The typecast operator is .
a.) cast () c.) //
b.) (data type) d.) “ ”
34.) Explicit type conversion is known as .
a.) Separation c.) Conversion
b.) Casting d.) Disjunction
35.) a+=4 means .
a.) a=a+4 c.) a=4
b.) a+4=a d.) a=4+4
36.) p++ executes faster than p=p+1 because .
a.) p uses registers c.) p++ is a single instruction
b.) ++ is faster than + d.) All of above
37.) Which statement is correct?
a.) C Library functions provide I/O facilities
b.) C inherent I/O facilities
c.) C doesn’t have I/O facilities
d.) Both (a) and (c)
38.) Header files in C contain .
a.) Compiler Commands c.) Header information of C Programs
b.) Library functions d.) Operators for files
39.) Which pair is used for single character I/O.?
a.) getchar() and putchar() c.) input() and output()
b.) scanf() and printf() d.) None of these
40.) The printf() returns value when an error occurs.
a.) Positive value c.) Negative Value
b.) Zero d.) None of these
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41.) Identify wrong statement:
a.) putchar(65) c.) putchar(“x”)
b.) putchar(‘x’) d.) putchar(‘\n’)
42.) An Ampersand in scanf() before the name of a variable denotes .
a.) Actual Value c.) Address
b.) Variable Name d.) Data Type
43.) Symbolic constants can be defined using .
a.) #define c.) symbols
b.) const d.) None of these
44.) Null character is represented by .
a.) \n b.) \0 c.)\o d.)\e
45.) Which header file is essential for using strcmp() function.?
a.) string.h c.) text.h
b.) strings.h d.) strcmp.h
46.) malloc() used in Dynamic Memory Allocation is available in .
a.) stream.h c.) alloc.h
b.) malloc.h d.) stdio.h
47.) Testing & Conversion character functions in C are available in .
a.) ctype.h c.) math.h
b.) string.h d.) conio.h
48.) C supports Looping statements.
a.) 5 b.) 3 c.) 6 d.) 8
49.) A statement differs from an expression by terminating with a .
a.) Semicolon (;) c.) NULL
b.) Colon (:) d.) dot (.)
50.) Which of the following is an unconditional control structure?
a.) Do-while c.) goto
b.) if-else d.) for
51.) Which of the following is a keyword is used for a storage class.?
a.) printf c.) auto
b.) external d.) scanf
52.) In C language ‘a’ represents .
a.) a digit c.) a character
b.) an integer d.) a word
53.) The number of Arithmetic operators in C language is .
a.) 4 b.) 5 c.) 6 d.) 7
54.) How many keywords are available in ‘C’?
a.) 32 b.) 34 c.) 36 d.) 30
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55.) Advantage of UNION over STRUCTURE is .
a.) Memory Storage c.) Memory Screen
b.) Memory Location d.) None of these
56.) Maximum number of elements in the array declaration “ int arr[5][8]; ” is .
a.) 28 b.) 32 c.) 35 d.) 40
57.) Array subscripts in C always start at .
a.) 1 b.) -1 c.) as per programmer d.) 0
58.) Which is the correct way to declare a pointer?
a.) int ptr; b.) *int *ptr; c.) int *ptr; d.) *int ptr;
59.) Output of the printf(“2.3f\n”,17.23478) will be .
a.) 17.23478 c.) 17.2348
b.) 17.235 d.) 17.23
60.) What will be the value of the following:
1. floor(5.8)
2. floor(-5.8)
a.) -5,-6 c.) -5,6
b.) 5, -6 d.) 5,6
61.) What would be the value of X after execution of the following statements?
int x,y=10;
char z=’a’;
x=y+z;
a.) Invalid c.) 107
b.) 17 d.) 10a
62.) What will be the output the following:
#include<stdio.h>
#include<conio.h>
void main()
{
int *i, *j, a=12, b=2, c ;
c= (a=a+b, b=a/b, a=a*b, b=a-b);
i= &c;
printf (“%d”,--(*i));
}
a.) 93 c.) 91
b.) 92 d.) 90
63.) Study the following program:
#include<stdio.h>
#include<conio.h>
void main()
{
int a=7,b=5;
switch(a/a%b)
{
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case 1: a=a-b;
case 2: a=a+b;
case 3: a=a*b;
case 4: a=a/b;
default: a=a;
}
printf(“%d”, a);
}
What will be the output?
a.) 7 b.) 5 c.) 2 d.) None of above
64.) A operator applies to two operands, while a operator applies to a single
operand.
a.) Binary, Unary c.) Unary, Ternary
b.) Ternary, Binary d.) None of these
65.) A is a place where we can store values. Size of INT is bits.
a.) int, 2 c.) variable, 16
b.) variable, 2 d.) int, 16
66.) Variable consist of letters, numbers and . You can’t use .
a.) Underscore, keyword c.) Identifier, keyword
b.) Alphabets, underscore d.) Underscore, identifier
67.) Study the following C program:
#include<stdio.h>
#include<conio.h>
void main()
{
char *str1,*str2,*str3;
str1=”India is my”;
str2=”!!yrtnuoC”;
str3=”Gujarat”;
clrscr();
strncat(str1,strrev(str2),strlen(str3));
puts(str1);
}
What will be the value of STR1 after execution of the above program?
a.) India is my Country!!
b.) India is my !!yrtnuoC
c.) India is my Country
d.) None of these
68.) Study it:
#include<stdio.h>
#include<conio.h>
void main()
{
int count=1,digit=0;
while(digit<=9)
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{
++count;
++digit;
}
printf(“%d”,count);
}
What will be the output?
a.) 10 b.) 9 c.) 11 d.) 12
69.) What will be the output of following program?
#include<stdio.h>
#include<conio.h>
void main()
{
int i, j, k;
j=5;
i= 2*j/2;
k=2*(j/2);
printf(“i=%d \n k=%d”, i, k);
}
a.) i=5, k=5 c.) i=5, k=4
b.) i=4, k=4 d.) i=4, k=5
70.) Study the following program:
#include<stdio.h>
#include<conio.h>
void main()
{
int a, b, c;
a=2;
b=2*(a++);
c=2*(++a);
printf(“b=%d \n c=%d”,b,c);
}
a.) b=4,c=6 c.) b=3, c=6
b.) b=3,c=8 d.) b=4, c=8
71.) Study the following program:
#include<stdio.h>
#include<conio.h>
void main()
{
int *ptr, i;
i=12;
*ptr=i * i;
++i;
printf(“%d %d”, i, *ptr);
}
a.) 12, 144 b.) 13, 144 c.) 13, 0 d.) None of these
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72.) Study the following program:
#include<stdio.h>
#include<conio.h>
void main()
{
int a=3;
switch(a)
{ case 1: printf(“One”);
case 3: printf(“Three”);
case 5: printf(“Five”);
case 7: printf(“Seven”);
default: printf(“Odd”);
break; }
What will be the output of above program?
a.) Three c.) Three Five Seven Odd
b.) Three Five Odd d.) Three Five Seven
73.) Study the following program:
#include<stdio.h>
#include<conio.h>
union example
{
int i;
float f;
double d;
};
void main()
{
union example e;
printf(“\n Size of union is: %d”, size of(e));
}
What will be the output of this program?
a.) 8 b.) 6 c.) 10 d.) 14
74.) Study the following program:
#include<stdio.h>
#include<conio.h>
void main()
{
int i=0, X=0;
do
{
if(i%5==0)
{
X++;
}
++i;
} while (i <20);
}
What will be the output of this program?
a.) X=4 b.) X=20 c.) X=25 d.) X=10
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75.) Study the following program:
#include<stdio.h>
#include<conio.h>
void main()
{
int i=0, X=0;
while (i<20)
{
if(i%5==0) { X+=i; }
i++;
}
printf(“X=%d”, X);
}
What will be the output of above program?
a.) X=30 c.) X=25
b.) X=20 d.) X=10
76.) Study the following program:
#include<stdio.h>
#include<conio.h>
void main()
{
int i, n=2;
for(i=0; i<2; i++)
{
if(!(i<=n) && (++n==i))
n=n+2;
else
n=n-2;
}
}
What will be the output of this program?
a.) 3 b.) 4 c.) 2 d.) None of these
77.) What is the keyword used to declare a c file pointer?
a.) file b.) FILE c.) FILEFP d.) filefp
78.) Why is a macro used in place of a function?
a.) It reduces execution time
b.) It reduces code size
c.) It increses execution time
d.) It increses code size.
79.) Pre-programming technique is.??
a.) Flow Chart c.) Dry Run
b.) Algorithm d.) All of Above
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80.) Which is the step by step representation of program creation?
a.) Algorithm c.) Flow Chart
b.) Dry Run d.) None of Above
81.) Dry Run is a .
a.) Tabular Development c.) Step by Step Development
b.) Graphical Representation d.) None of Above
82.) ‘B’ language is developed by .
a.) Martin Richards c.) Ken Thompson
b.) Dennis Ritchie d.) Berian Kerningham
83.) Which of the following symbol is use for single line comment?
a.) // c.) \\
b.) /* …… */ d.) ;
84.) Which is not the graphical representation of program creation?
a.) Algorithm c.) Flow Chart
b.) Dry Run d.) (A) and (B) both
85.) ANSI C permits the use of as many as case labels.
a.) 258 b.) 259 c.) 257 d.) 256
86.) Structure template is terminated by symbol .
a.) Semicolon ( ; ) c.) Space ( )
b.) Comma ( , ) d.) Underscore ( _ )
87.) ? : is operator.
a.) Logical c.) Assignment
b.) Bitwise d.) Conditional
88.) Which symbols used to define an array?
a.) [ ] c.) { }
b.) < > d.) ( )
89.) Find the error:
void mai n()
{
int a= 11 ;
i f( a> 0 );
printf(“ Its POSI TIV E”);
else
printf(“ Its NEGA T IV E” );
}
a.) getch(); is missing c.) misplaced else
b.) statement missing d.) None of above
90.) Which is a relational operator?
a.) && c.) ? :
b.) >= d.) /* .......... */
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91.) To check whether string is in upper case or not, which function is used?
a.) toupper () c.) isupper()
b.) upper () d.) None of above
92.) pow(), abs() & sqrt() are situated in header file.
a.) stdio.h, math.h, ctype.h c.) ctype.h
b.) string.h d.) math.h
93.) Which is not the part of UDF?
a.) Prototype of Function c.) Definition of Function
b.) Calling of Function d.) None of above
94.) How compare that two strings are equal or not?
a.) strcmp() c.) strrev()
b.) strcat() d.) strchr()
95.) Which is a storage class?
a.) auto c.) register
b.) static d.) All of above
96.) 64 bits occupied by which data type?
a.) double c.) unsigned int
b.) long double d.) int
97.) Which special symbol is allowed for variable declaration ?
a.) Under Score ( _ ) c.) Caret ( ^ )
b.) Tiled ( ~ ) d.) Colon ( : )
98.) < , > are used for .
a.) Function Call c.) Link to Header file
b.) Array d.) Function Definition
99.) Percentage style of “unsigned int” is .
a.) %ld c.) %u
b.) %c d.) %lu
100.) as an alternative of simple if…else statement.
a.) Conditional Operator c.) ? : Operator
b.) Ternary Operator d.) All of above
101.) Which is not an Entry Control.?
a.) for loop c.) do…while loop
b.) while loop d.) All of above
102.) How many types of operators are there?
a.) 7 c.) 10
b.) 9 d.) 8
103.) What is the output of below program?
void mai n()
{
int a= 11 , b ;
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b=a+ +
printf(“ \ n\ t B: % d”, b);
g et c h ();
}
a.) Error b.) 12 c.) 11 d.) None of above
104.) a -=b is equivalent to .
a.) a=b-a c.) b=b-a
b.) a=a-b d.) b=a-b
105.) { } are used to group statements together as in a function, or in the body of a loop. Such a
grouping is known as .
a.) Statement c.) Loop
b.) Block d.) Process
106.) Which is the Escape Sequence character?
a.) \n c.) \a
b.) \o d.) (A) and (B) both
107.) Null character is represented by .
a.) NULL c.) \0
b.) \o d.) All of above
108.) Symbol behaves as STYLE while using with one variable and as REMINDER while
using with two variable/values.
a.) & b.) % c.) * d.) #
109.) and are used to test more than one condition.
a.) &&, || b.) <=, >= c.) ==, != d.) <, >
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