Knack Club Selection Test

Identify the incorrect file opening mode from the following.

• - r

• - w

• - x

• - a

The correct order of mathematical operators in mathematics and computer programming.

• Addition, Subtraction, Multiplication, Division

• Division, Multiplication, Addition, Subtraction

• Multiplication, Addition, Division, Subtraction

• Mathematical operators can be done in any order

During preprocessing, the code “#include<stdio.h>” gets replaced by the contents of the file stdio.h.

• Yes

• During linking the code “#include<stdio.h>” replaces by stdio.h

• During execution the code “#include<stdio.h>” replaces by stdio.h

• During editing the code “#include<stdio.h>” replaces by stdio.h

  
  

All keywords in C are in ____________?

• LowerCase letters

• UpperCase letters

• CamelCase letters

• None of the mentioned
  

Which of the following cannot be a variable name in C?

• volatile

• true

• friend

• export

What is the result of logical or relational expression in C?

• True or False

• 0 or 1

• 0 if an expression is false and any positive number if an expression is true

• None of the mentioned

Where in C the order of precedence of operators do not exist?

• Within conditional statements, if, else

• Within while, do-while

• Within a macro definition

• None of the mentioned

What is #include <stdio.h>?

• Preprocessor directive

• Inclusion directive

• File inclusion directive

• None of the mentioned

Which of the following are C preprocessors?

• #ifdef

• #define

• #endif

• all of the mentioned

Which of the following return-type cannot be used for a function in C?

• char *

• struct

• void

• none of the mentioned