Lua Programming MCQs With Answers

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Lua Programming Online Quiz

By presenting 3 options to choose from, Lua Programming Quiz which cover a wide range of topics and levels of difficulty, making them adaptable to various learning objectives and preferences. You will have to read all the given answers of Lua Programming Questions and Answers and click over the correct answer.

• Test Name: Lua Programming MCQ Quiz Practice
• Type: Quiz Test
• Total Questions: 40
• Total Marks: 40
• Time: 40 minutes

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Lua Programming

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1 / 40

How do you define a multi-line string in Lua?

[[ ... ]]

' ... '

""" ... """

2 / 40

In Lua, what does print("Hello, World!") do?

Read user input

Print a message

Define a function

3 / 40

What is the output of print(10 < 5 and "Yes" or "No") in Lua?

Yes

Error

No

4 / 40

What does the os.time() function do in Lua?

Return current time in seconds

Pause execution for a time

Execute a function

5 / 40

How do you check if a variable is nil in Lua?

checkNil(varName)

isNil(varName)

varName == nil

6 / 40

What is the correct syntax for calling a superclass constructor in Lua?

new super(arguments)

super(arguments)

super.constructor(arguments)

7 / 40

How do you define a table in Lua?

local tbl = {}

Table tbl = {}

new Table(tbl)

8 / 40

How do you check if a key exists in a table in Lua?

table[key] ~= nil

hasKey(key, table)

table.hasKey(key)

9 / 40

How do you define a multi-line comment in Lua?

/** ... **/

--[[ ... ]]

/* ... */

10 / 40

How do you define a global variable in Lua?

global(varName, value)

varName = value

global varName = value

11 / 40

How do you convert a number to a string in Lua?

number.toString()

convertToString(number)

tostring(number)

12 / 40

What does the string.find() function do in Lua?

Find occurrences of a pattern

Compare two strings

Extract a substring

13 / 40

Which method is used to convert a string to uppercase in Lua?

string.upper()

upperCase()

toUpperCase()

14 / 40

How do you declare a variable in Lua?

var varName = value

int varName = value

local varName = value

15 / 40

What does the table.concat() function do in Lua?

Sort elements in a table

Split elements in a table

Concatenate elements in a table

16 / 40

What does the string.sub() function do in Lua?

Replace a substring

Extract a substring

Compare two strings

17 / 40

What does the io.read() function do in Lua?

Read input from the user

Print output

Execute a function

18 / 40

Which method is used to remove an element from a table in Lua?

table.pop()

table.delete()

table.remove()

19 / 40

What does the or operator do in Lua?

Logical NOT

Logical OR

Logical AND

20 / 40

What is the purpose of the require keyword in Lua?

Load external modules

Include a header file

Define custom data types

21 / 40

How do you define a class in Lua?

class ClassName { ... }

new Class ClassName()

Lua does not have classes

22 / 40

How do you concatenate strings in Lua?

&

+

..

23 / 40

What does the table.insert() function do in Lua?

Insert an element into a table

Remove an element from a table

Update an element in a table

24 / 40

How do you define a static method in Lua?

static methodName() { ... }

methodName.static()

Lua does not support static methods

25 / 40

How do you concatenate two tables in Lua?

{...} + {...}

table.concat({...}, {...})

{...} .. {...}

26 / 40

How do you comment a single line in Lua?

--

#

//

27 / 40

What is Lua primarily used for?

Game development

Web development

Scripting

28 / 40

What is the correct way to define an array in Lua?

new Array(arr)

local arr = {1, 2, 3}

array arr = {1, 2, 3}

29 / 40

What is the output of print(10 == 5) in Lua?

False

Error

True

30 / 40

What is the purpose of pairs() function in Lua?

Define a class

Perform arithmetic operation

Iterate over a table

31 / 40

What is the purpose of the math.random() function in Lua?

Compute factorial

Generate a random number

Round a number

32 / 40

How do you read input from the user in Lua?

io.read()

getInput()

readInput()

33 / 40

Which closure definition is valid in Lua?

(param) => ...

{ param -> ... }

function(param) ... end

34 / 40

Which operator is used for string concatenation in Lua?

&

+

..

35 / 40

How do you handle exceptions in Lua?

handle { ... }

try { ... } catch (Exception e) { ... }

pcall(functionName)

36 / 40

Which keyword is used to define a function in Lua?

function

def

void

37 / 40

How do you define an anonymous function in Lua?

(param) => ...

function(...) ... end

{ param -> ... }

38 / 40

What does the assert function do in Lua?

Handle exceptions

Print a message

Assert a condition is true

39 / 40

How do you define a closure in Lua?

closure myClosure = function(...) ... end

local myClosure = function(...) ... end

def myClosure { ... }

40 / 40

How do you import a module in Lua?

require "moduleName"

import moduleName

include moduleName

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