Lua Programming MCQs With Answers

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Lua Programming Online Quiz

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

Note: Answer of the questions will change randomly each time you start the test. Practice each quiz test at least 3 times if you want to secure High Marks. Once you are finished, click the View Results button. If any answer looks wrong to you in Quizzes. simply click on question and comment below that question. so that we can update the answer in the quiz section.

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Lua Programming

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1 / 40

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

new Array(arr)

array arr = {1, 2, 3}

local arr = {1, 2, 3}

2 / 40

How do you concatenate two tables in Lua?

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

{...} + {...}

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

3 / 40

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

Update an element in a table

Remove an element from a table

Insert an element into a table

4 / 40

How do you define a static method in Lua?

static methodName() { ... }

Lua does not support static methods

methodName.static()

5 / 40

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

[[ ... ]]

' ... '

""" ... """

6 / 40

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

Split elements in a table

Concatenate elements in a table

Sort elements in a table

7 / 40

Which keyword is used to define a function in Lua?

def

function

void

8 / 40

How do you define a class in Lua?

class ClassName { ... }

new Class ClassName()

Lua does not have classes

9 / 40

How do you handle exceptions in Lua?

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

handle { ... }

pcall(functionName)

10 / 40

How do you define a closure in Lua?

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

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

def myClosure { ... }

11 / 40

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

checkNil(varName)

isNil(varName)

varName == nil

12 / 40

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

Compare two strings

Extract a substring

Find occurrences of a pattern

13 / 40

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

new super(arguments)

super.constructor(arguments)

super(arguments)

14 / 40

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

Read input from the user

Print output

Execute a function

15 / 40

How do you import a module in Lua?

require "moduleName"

import moduleName

include moduleName

16 / 40

What does the or operator do in Lua?

Logical AND

Logical NOT

Logical OR

17 / 40

How do you concatenate strings in Lua?

&

..

+

18 / 40

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

Execute a function

Pause execution for a time

Return current time in seconds

19 / 40

Which closure definition is valid in Lua?

function(param) ... end

{ param -> ... }

(param) => ...

20 / 40

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

Compute factorial

Generate a random number

Round a number

21 / 40

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

Perform arithmetic operation

Define a class

Iterate over a table

22 / 40

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

table.delete()

table.remove()

table.pop()

23 / 40

What is Lua primarily used for?

Web development

Game development

Scripting

24 / 40

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

Read user input

Print a message

Define a function

25 / 40

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

tostring(number)

convertToString(number)

number.toString()

26 / 40

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

hasKey(key, table)

table.hasKey(key)

table[key] ~= nil

27 / 40

Which operator is used for string concatenation in Lua?

+

&

..

28 / 40

How do you comment a single line in Lua?

#

--

//

29 / 40

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

Error

True

False

30 / 40

How do you declare a variable in Lua?

var varName = value

int varName = value

local varName = value

31 / 40

How do you read input from the user in Lua?

readInput()

getInput()

io.read()

32 / 40

How do you define an anonymous function in Lua?

(param) => ...

function(...) ... end

{ param -> ... }

33 / 40

What does the assert function do in Lua?

Print a message

Handle exceptions

Assert a condition is true

34 / 40

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

Replace a substring

Extract a substring

Compare two strings

35 / 40

What is the purpose of the require keyword in Lua?

Load external modules

Include a header file

Define custom data types

36 / 40

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

Error

Yes

No

37 / 40

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

upperCase()

string.upper()

toUpperCase()

38 / 40

How do you define a table in Lua?

new Table(tbl)

Table tbl = {}

local tbl = {}

39 / 40

How do you define a global variable in Lua?

global varName = value

varName = value

global(varName, value)

40 / 40

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

/* ... */

--[[ ... ]]

/** ... **/

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