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

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2. 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

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

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

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

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

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5. 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

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6. 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

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7. 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

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8. 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

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9. 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

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10. 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

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