Which of the following is not a valid C variable name?

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Which of the following is not a valid C variable name?

1.int number;

2.float rate;

3.int variable_count;

4.int $main;

Posted Date:-2021-02-21 04:34:55

More MCQS Questions and answers

  1. A variable declared in a function can be used in main().
  2. All keywords in C are in _____
  3. Are logical operator sequence points?
  4.  Which of the following declaration is illegal?
  5.  Which of the following is a User-defined data type?
  6.  Which of the following is not an arithmetic operation?
  7. C99 standard guarantees uniqueness of ___________ characters for external names.
  8. Do logical operators in the C language are evaluated with the short circuit?
  9. enum types are processed by _________
  10. For which of the following, “PI++;” code will fail?
  11. function tolower(c) defined in library <ctype.h> works for ___________
  12. In the following code snippet, character pointer str holds a reference to the string ___________
  13. C99 standard guarantees uniqueness of __________ characters for internal names.
  14. Relational operators cannot be used on ________
  15. The format identifier ‘%i’ is also used for _____ data type.
  16. Variable name resolution (number of significant characters for the uniqueness of variable) depends on ___________
  17. What is short int in C programming?
  18. What is the precedence of arithmetic operators (from highest to lowest)?
  19. What is the problem in the following variable declaration? float 3Bedroom-Hall-Kitchen?;
  20. What is the result of logical or relational expression in C?
  21. What is the size of an int data type?
  22. What is the type of the following assignment expression if x is of type float and y is of type int? y = x + y;
  23. What will be the data type of the following expression? (Initial data type: a = int, var1 = double, var2 = float) expression (a < 50)? var1 : var2;
  24. What will be the data type of the result of the following operation? (float)a * (int)b / (long)c * (double)d
  25. What will be the final value of c in the following C code snippet? (Initial values: a = 1, b = 2, c = 1) c += (-c) ? a : b;
  26. What will be the final values of a and c in the following C statement? (Initial values: a = 2, c = 1) c = (c) ? a = 0 : 2;
  27. When do you need to use type-conversions?
  28. Which among the following are the fundamental arithmetic operators, i.e, performing the desired operation can be done using that operator only?
  29. Which among the following is NOT a logical or relational operator?
  30. Which data type is most suitable for storing a number 65000 in a 32-bit system?
  31. Which expression has to be present in the following? exp1 ? exp2 : exp3;
  32. Which is correct with respect to the size of the data types?
  33. Which is valid C expression?
  34. Which keyword is used to prevent any changes in the variable within a C program?
  35. Which of the data types has the size that is variable?
  36. Which of the following cannot be a variable name in C?
  37. Which of the following data type will throw an error on modulus operation(%)?
  38. Which of the following declaration is not supported by C?
  39. Which of the following is not a pointer declaration?
  40. Which of the following is not a valid C variable name?
  41. Which of the following is not a valid variable name declaration?
  42. Which of the following is not a valid variable name declaration?
  43. Which of the following is not a valid variable name declaration?
  44. Which of the following is true for variable names in C?
  45. Which of the following statement is false?
  46. Which of the following statement is false?
  47. Which of the following type-casting have chances for wrap around?
  48. Which of the following typecasting is accepted by C?
  49. Which type of conversion is NOT accepted?
  50. Why do variable names beginning with the underscore is not encouraged?
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