Ruby MCQ On Loops

This section focuses on "Loops" in Ruby. These Multiple Choice Questions (MCQ) should be practiced to improve the Ruby skills required for various interviews (campus interviews, walk-in interviews, company interviews), placements, entrance exams and other competitive examinations.

1. Which of the following is not a type of loop in ruby?

A. For Loop
B. Foreach Loop
C. Until Loop
D. While Loop

View Answer


2. What is true about Until loop?

A. Executes code while conditional is true
B. In until loop increment is not required
C. Executes code while conditional is false
D. None of the above

View Answer


3. What is true about while loop?

A. Executes code while conditional is true
B. In while loop increment is not required
C. Executes code while conditional is false
D. None of the above

View Answer


4. What is the use of break statement?

A. Terminates the most External loop.
B. Terminates all loop.
C. Terminates the program.
D. Terminates the most internal loop.

View Answer


5. Which statement is used to Jumps to the next iteration of the most internal loop?

A. break
B. next
C. redo
D. retry

View Answer


6. Which statement is used to Restarts this iteration of the most internal loop, without checking loop condition?

A. break
B. next
C. redo
D. retry

View Answer


7. Which statement is used to restarts the invocation of the iterator call?

A. break
B. next
C. redo
D. retry

View Answer


8. What does the 1..5 indicate?

A. Exclusive range
B. Both inclusive and exclusive range
C. Inclusive range
D. None of the above

View Answer


9. What does end represent?

A. keyword represents the ending of loop
B. keyword represents the start of loop
C. keyword represents the start and ending of loop
D. keyword represents the infinite loop

View Answer


10. Which of the following is Exit Controlled loop?

A. do..while
B. For
C. Until
D. While

View Answer


11. What will be the output of the given code?

for num in 1...5
  puts num
end

A. 1 2 3 4
B. 1 2 3 4 5
C. 0 1 2 3 4
D. 0 1 2 3 4 5

View Answer


12. What will be the output of the given code?

for i in 1...3  
  for j in 1..3
  puts j
  end
end

A. 1 2 1 2
B. 0 1 2 0 1 2
C. 1 2 3 1 2 3
D. 1 2 3 1 2

View Answer


13. What will be the output of the given code?

for num in 1...4

   puts num*num

end

A. 0 1 4 9
B. 1 4 9 16
C. 0 1 2 3
D. 1 2 3

View Answer


14. What will be the output of the given code?

i=1
for i in 6..10
puts i**2
end

A. 36 49 64 81
B. 49 64 81 100
C. 49 64 81
D. 36 49 64 81 100

View Answer


15. What will be the output of the given code?

for i in 1..5 && j in 5..10
puts i+j
end

A. 6 8 10 12 14 16
B. Syntax Error
C. 6 8 10 12 14
D. Type Error

View Answer


16. What will be the output of the given code?

counter = 1
while counter < 5
  puts counter
  counter = counter + 1
end

A. Prints the number from 1 to 4
B. Prints the number from 1 to 5
C. Prints the number from 2 to 5
D. Prints the number from 2 to 4

View Answer


17. What will be the output of the given code?

counter = true
while counter !=false
  puts counter
end

A. TRUE
B. FALSE
C. Syntax Error
D. Infinite Loop

View Answer


18. What will be the output of the given code?

while a&&b
puts a
end

A. TRUE
B. FALSE
C. Syntax Error
D. Name Error

View Answer


19. What will be the output of the given code?

a=1
b=1
while a&&b
puts a+b
end

A. 2
B. 2 2 2 2 2
C. Infinite Loop
D. Syntax Error

View Answer


20. What will be the output of the given code?

i = 4
while i > 0 do
  print i
  i -= 1
end

A. 321
B. 3210
C. 4321
D. 43210

View Answer





Discussion


* You must be logged in to add comment.