Free Test Type casting & type co... – C Language

Q1: What is type casting in C?

A. Converting one data type into another explicitly B. Automatically converting data type C. Using macros for type change D. Changing variable name

Q2: Which of the following is an example of explicit type casting?

A. (float)10 / 3 B. 10 / 3 C. int x = 5; D. char c = 'A';

Q3: What is type conversion in C?

A. Automatic conversion of data type by compiler B. Explicit conversion by programmer C. Changing function return type D. Modifying variable name

Q4: Implicit type conversion is also known as?

A. Type promotion B. Type demotion C. Type casting D. Type linking

Q5: Which type is given higher priority during type conversion?

A. float B. int C. char D. short

Q6: What will be the result of (int)3.9?

A. 3 B. 4 C. 3.9 D. Error

Q7: Which conversion happens when int is assigned to float?

A. Implicit type conversion B. Explicit type casting C. No conversion D. Type error

Q8: When a float is assigned to an int, what happens?

A. Value is truncated B. Value is rounded C. No change D. Compiler error

Q9: Which operator is used for type casting in C?

A. (type) B. cast() C. convert() D. [type]

Q10: What will (char)65 output?

A. A B. 65 C. Error D. Undefined

Q11: Which type conversion has higher precedence?

A. Explicit casting B. Implicit conversion C. Both are equal D. Depends on compiler

Q12: What is the output of (float)5/2?

A. 2.5 B. 2 C. 2.0 D. Error

Q13: Which conversion might cause data loss?

A. float to int B. int to float C. char to int D. short to int

Q14: Converting double to int will?

A. Truncate decimal part B. Round the value C. Cause error D. Convert to float

Q15: Which is safer to avoid precision loss?

A. Explicit casting to larger type B. Implicit casting to smaller type C. Casting randomly D. No casting

Q16: Which is an example of narrowing conversion?