Ruby MCQ: Practice Questions & Answers (Telugu) - Page 2

RubyMediumString Methods

21.

Which of the following is the valid string method?

A

The .length method

B

The .upcase method

C

The .downcase method

D

The .irreverse method

RubyMediumOperators

22.

What will the following expression evaluate to !true && !false

A

True

B

False

C

Error

D

None of the mentioned

RubyMediumOperators

23.

What will the following expression evaluate to (true && false) || (!true)

A

True

B

False

C

Error

D

None of the mentioned

RubyMediumOperators

24.

What will the following expression evaluate to true || false

A

True

B

False

C

Error

D

None of the mentioned

RubyMediumOperators

25.

What will the following expression evaluate to true && false

A

True

B

False

C

Error

D

None of the mentioned

RubyMediumOperators

26.

The boolean operator && only result in true when both the values are true?

A

True

B

False

RubyMediumOperators

27.

Which of the following is a valid boolean operator?

A

and(&&)

B

or(||)

C

not(!)

D

All of the mentioned

RubyMediumOperators

28.

Boolean opeartors are also known as logical operators.

A

True

B

False

RubyMediumLibrary Functions

29.

first_name,Last_name=gets.chomp,gets.chomp is the correct way to get the input from the user.

A

True

B

False

RubyMediumLibrary Functions

30.

Why is gets not preferred instead of gets.chomp?

A

Gets add an extra new line while chomp removes it

B

Gets remove an extra new line

C

Chomp erases the value stored in the variable

D

All of the mentioned

RubyMediumLibrary Functions

31.

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

A

#(expr)

B

#{expr}

C

#expr

D

None of the mentioned

RubyMediumLibrary Functions

32.

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

A

get

B

gets.chomp

C

get-s

D

chomp

RubyMediumLibrary Functions

33.

We use semicolon or parentheses after every print or puts statement.

A

True

B

False

RubyMediumLibrary Functions

34.

Why is the library function 'puts'used for?

A

Prints whatever is given and print it to the screen

B

Prints whatever is given and insert a new(blank) line

C

Gets input from the user

D

None of the mentioned

RubyMediumLibrary Functions

35.

Which of the following is not a valid library function?

A

Puts

B

Print

C

Gets

D

Get

RubyMediumThe If Conditional Statement

36.

It's a good habit to give two spaces between if statement and condition.

A

True

B

False

RubyMediumThe If Conditional Statement

37.

If statement inside if statement is called Nested if statements.

A

True

B

False

RubyMediumThe If Conditional Statement

38.

What error does the if condition gives if not terminated with end statement?

A

Syntax error

B

Unexpected end

C

Expecting keyword end

D

All of the mentioned

RubyMediumThe If Conditional Statement

39.

If expression. The expression can be of which type?

A

True

B

Any number

C

Any string

D

All of the mentioned

RubyMediumThe Elsif Conditional Statement

40.

The elsif statement can add many alternatives to if/else statements.

A

True

B

False

Ruby : Practice Questions and Answers

Ruby : Practice Questions and Answers