Ruby on Rails MCQs Quiz Multiple Choice Questions & Answers

1. Which of the following languages syntax matches with the Rubys syntax?

1. Perl
2. PHP
3. Jquery
4. Java

2. What is the extension used for saving the ruby file?

1. .ruby
2. .r
3. .rb
4. ry

3. What does the notation \b stands for?

1. Escape
2. Space
3. Backspace
4. Newline

4. What is the sequence of ruby strings?

1. 16-bit bytes
2. 8-bit bytes
3. 12-bit bytes
4. none of these

5. Which of the following is not a valid datatype in Ruby?

1. Float
2. Integer
3. Binary
4. Timedate

6. Which of the following is not a valid library function?

1. Puts
2. Print
3. Gets
4. Get

7. Why is the library function Puts used for?

1. Prints whatever is given and print it to the screen
2. Prints whatever is given and insert a new(blank) line
3. Gets input from the user
4. none of these

8. What is the output of the given code? print Hi puts Welcome!

1. Error
2. Hi Welcome!
3. Hi
4. Welcome!

9. For getting an input from the user which method is used?

1. gets
2. gets.chomp
3. gets-s
4. chomp

10. Which sequence can be used to substitute the value of any ruby expression in a string?

1. #(expr)
2. #{expr}
3. #expr
4. none of the above

11. What is the output of the following? I am learning ruby language.length

1. 27
2. 23
3. 26
4. 18

12. What will be the output of the following? Ruby.reverse.upcase

1. RUBY
2. ybuR
3. YBUR
4. YBUr

13. What is the use of .capitalize method?

1. It capitalizes the entire string
2. It capitalize on the first letter of the string
3. It capitalize the strings which are in small case
4. none of the mentioned

14. What does %{Learn ruby language} represents?

1. "Learn Ruby language"
2. "%{Learn Ruby language}"
3. " Learn Ruby language "
4. none of these

15. What does %Q{ Learn ruby language } represents?

1. " Learn Ruby language "
2. "%{ Learn Ruby language }"
3. " Learn Ruby language "
4. none of the mentioned

16. How to comment a single line in Ruby on Rails?

1. Using #
2. Using begin and end
3. Using //
4. none of the mentioned

17. What is the output of the given code? "Ruby".length #to find the length of given string

1. 4 to find the length of given string
2. 4
3. To find the length of given string
4. Ruby

18. Which of the following is a valid conditional statement in Ruby?

1. else
2. els
3. if else
4. none of the mentioned

19. Which of the following is a valid conditional statement in Ruby?

1. elseif
2. elsif
3. else if
4. elseiff