C programming chapter 1
Which operator retrieves the lvalue of a variable? (a) & (b) * (c) -> (d) None of these
a
. Keywords are case sensitive
T
1,234 is a valid integer constant
F
*(&num) is equivalent to writing (a) &num (b) *num (c) num (d) None of these
c
Which operator has the lowest precedence? (a) Sizeof (b) Unary (c) Assignment (d) Comma
4
A printf statement can generate only one line of output
F
All arithmetic operators have same precedence
F
Any valid printable ASCII character can be used for a variable name
F
Decision control statements are used to repeat the execution of a list of statements
F
Equality operators have higher precedence than the relational operators
F
Signed variables can increase the maximum positive range
F
The calling function always passes parameters to the called function.
F
Underscore can be used anywhere in the variable name.
F
Variable 'first' is the same as 'First'.
F
stdio.h is used to store the source code of the program
F
We can have only one function in a C program
False
. No function can be declared within the body of another function.
T
. Shifting once to the left multiplies the number by 2
T
. The closing brace of main() is the logical end of the program
T
Comment statements are not executed by the compiler.
T
On 32-bit systems, an integer variable is allocated 4 bytes.
T
The & operator retrieves the lvalue of the variable.
T
The declaration section gives instructions to the compute
T
The modulus operator can be used only with integers.
T
The name of a function is global
T
Unary increment and decrement operators have greater precedence than the dereference operator
T
printf("%d", scanf("%d", &num)); is a valid C statement
T
void is a data type in C
T
Memory is allocated for a function when the function is (a) declared (b) defined (c) called (d) returned
b
The operator which compares two values is (a) Assignment (b) Relational (c) Unary (d) Equality
b
Which of the following is not a character constant? (a) 'A' (b) "A" (c) ' ' (d) '*'
b
Which of the following is the conversion character associated with short integer? (a) %c (b) %h (c) %e (d) %f
b
Which operator is used to dereference a pointer? (a) & (b) * (c) -> (d) None of these
b
. Identify the erroneous expression. (a) X=y=2, 4; (b) res = ++a * 5; (c) res = /4; (d) res = a++ -b *2
c
Ternary operator operates on how many operands? (a) 1 (b) 2 (c) 3 (d) 4
c
Which operator cannot be used with floating point numbers? (a) + (b) - (c) % (d) *
c
Which return type cannot return any value to the calling function? (a) int (b) float (c) void (d) double
c
. Function declaration statement identifies a function with its (a) Name (b) Arguments (c) Data type of return value (d) All of these
d
Which of the following is a valid variable name? (a) Initial.Name (b) A+B (c) $amt (d) Floats
d
Which operator produces the one's complement of the given binary value? (a) Logical AND (b) Bitwise AND (c) Logical OR (d) Bitwise NOT
d
