All Courses
Get the App Signup / Login
Sign in Open App
EmSAT Achieve Exam  >  EmSAT Achieve Tests  >  C++ for EmSAT Achieve  >  Test: Strings - 1 - EmSAT Achieve MCQ

Test: Strings - 1 - EmSAT Achieve MCQ


Test Description

20 Questions MCQ Test C++ for EmSAT Achieve - Test: Strings - 1

Test: Strings - 1 for EmSAT Achieve 2024 is part of C++ for EmSAT Achieve preparation. The Test: Strings - 1 questions and answers have been prepared according to the EmSAT Achieve exam syllabus.The Test: Strings - 1 MCQs are made for EmSAT Achieve 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Strings - 1 below.
Solutions of Test: Strings - 1 questions in English are available as part of our C++ for EmSAT Achieve for EmSAT Achieve & Test: Strings - 1 solutions in Hindi for C++ for EmSAT Achieve course. Download more important topics, notes, lectures and mock test series for EmSAT Achieve Exam by signing up for free. Attempt Test: Strings - 1 | 20 questions in 40 minutes | Mock test for EmSAT Achieve preparation | Free important questions MCQ to study C++ for EmSAT Achieve for EmSAT Achieve Exam | Download free PDF with solutions
Test: Strings - 1 - Question 1
Save

Which header file should be included to work with strings in C++?

Detailed Solution for Test: Strings - 1 - Question 1

The string header file (string.h) should be included to work with strings in C++.

Test: Strings - 1 - Question 2
Save

What is the maximum number of characters that can be stored in a string object in C++?

Detailed Solution for Test: Strings - 1 - Question 2

In C++, there is no specific limit on the number of characters that can be stored in a string object.

1 Crore+ students have signed up on EduRev. Have you? Download the App
Test: Strings - 1 - Question 3
Save

What is the purpose of the 'getline()' function in C++?

Detailed Solution for Test: Strings - 1 - Question 3

The 'getline()' function is used to read a line of text from the console.

Test: Strings - 1 - Question 4
Save

Which of the following is a valid way to concatenate two strings in C++?
Detailed Solution for Test: Strings - 1 - Question 4

All of the options are valid ways to concatenate two strings in C++.

Test: Strings - 1 - Question 5
Save

Which function is used to find the length of a string in C++?
Detailed Solution for Test: Strings - 1 - Question 5

All of the options (length(), size(), and strlen()) can be used to find the length of a string in C++.

Test: Strings - 1 - Question 6
Save

What does the 'c_str()' function do in C++?
Detailed Solution for Test: Strings - 1 - Question 6

The c_str() function is used to convert a string to a character array (C-style string).

Test: Strings - 1 - Question 7
Save

What is the output of the following code snippet?
string str = "Hello";
cout << str[2];
Detailed Solution for Test: Strings - 1 - Question 7

The output will be 'l' because string indexing starts from 0, so str[2] refers to the third character in the string.

Test: Strings - 1 - Question 8
Save

Which function is used to extract a substring from a string in C++?
Detailed Solution for Test: Strings - 1 - Question 8

The substr() function is used to extract a substring from a string in C++.

Test: Strings - 1 - Question 9
Save

What is the return type of the 'find()' function in C++?
Detailed Solution for Test: Strings - 1 - Question 9

The find() function returns a value of type size_t, which is an unsigned integer type.

Test: Strings - 1 - Question 10
Save

Which of the following is not a valid way to compare two strings in C++?
Detailed Solution for Test: Strings - 1 - Question 10

The equals() function is not a valid way to compare two strings in C++.

Test: Strings - 1 - Question 11
Save

What is the output of the following code snippet?
```cpp
string str1 = "Hello";
string str2 = "World";
cout << str1 + " " + str2;
```
Detailed Solution for Test: Strings - 1 - Question 11

The output will be "Hello World" because the + operator can be used to concatenate strings.

Test: Strings - 1 - Question 12
Save

What is the output of the following code snippet?
```cpp
string str = "OpenAI";
cout << str.substr(2, 3);
```
Detailed Solution for Test: Strings - 1 - Question 12

The output will be "pen" because substr(2, 3) extracts a substring starting from index 2 with a length of 3.

Test: Strings - 1 - Question 13
Save

What is the output of the following code snippet?

```cpp
string str = "Hello";
str[1] = 'X';
cout << str;
```
Detailed Solution for Test: Strings - 1 - Question 13

The output will be "HXllo" because str[1] is replaced with 'X'.

Test: Strings - 1 - Question 14
Save

What is the output of the following code snippet?
```cpp
string str = "Hello World";
cout << str.find("World");
```
Detailed Solution for Test: Strings - 1 - Question 14

The output will be 6 because the find() function returns the position of the substring "World" within the string.

Test: Strings - 1 - Question 15
Save

What is the output of the following code snippet?
```cpp
string str = "Programming";
cout << str.size() << " " << str.length();
```
Detailed Solution for Test: Strings - 1 - Question 15

The output will be "11 11" because size() and length() both return the length of the string.

Test: Strings - 1 - Question 16
Save

What is the output of the following code snippet?
```cpp
string str = "Hello World";
reverse(str.begin(), str.end());
cout << str;
```
Detailed Solution for Test: Strings - 1 - Question 16

The output will be "dlroW olleH" because the reverse() function is used to reverse the string.

Test: Strings - 1 - Question 17
Save

What is the output of the following code snippet?
```cpp
string str1 = "Hello";
string str2 = "Hello";
if (str1.compare(str2) == 0)
    cout << "Equal";
else
    cout << "Not equal";
```
Detailed Solution for Test: Strings - 1 - Question 17

The output will be "Equal" because the compare() function returns 0 when the strings are equal.

Test: Strings - 1 - Question 18
Save

What is the output of the following code snippet?
```cpp
string str = "Hello World";
str.erase(5, 5);
cout << str;
```
Detailed Solution for Test: Strings - 1 - Question 18

The output will be "Hello" because erase(5, 5) removes 5 characters starting from index 5.

Test: Strings - 1 - Question 19
Save

What is the output of the following code snippet?
```cpp
string str = "Hello World";
str.insert(6, "C++ ");
cout << str;
```
Detailed Solution for Test: Strings - 1 - Question 19

The output will be "Hello C++ World" because insert(6, "C++ ") inserts the string "C++ " at index 6.

Test: Strings - 1 - Question 20
Save

What is the output of the following code snippet?
```cpp
string str = "Hello World";
str.replace(6, 5, "C++");
cout << str;
```
Detailed Solution for Test: Strings - 1 - Question 20

The output will be "Hello C++ld" because replace(6, 5, "C++") replaces 5 characters starting from index 6 with the string "C++".

70 videos|45 docs|15 tests
Join Course
Information about Test: Strings - 1 Page
In this test you can find the Exam questions for Test: Strings - 1 solved & explained in the simplest way possible. Besides giving Questions and answers for Test: Strings - 1, EduRev gives you an ample number of Online tests for practice

Top Courses for EmSAT Achieve

70 videos|45 docs|15 tests
Join Course
Download as PDF

Top Courses for EmSAT Achieve

Important Questions for Strings - 1

Find all the important questions for Strings - 1 at EduRev.Get fully prepared for Strings - 1 with EduRev's comprehensive question bank and test resources. Our platform offers a diverse range of question papers covering various topics within the Strings - 1 syllabus. Whether you need to review specific subjects or assess your overall readiness, EduRev has you covered. The questions are designed to challenge you and help you gain confidence in tackling the actual exam. Maximize your chances of success by utilizing EduRev's extensive collection of Strings - 1 resources.

Strings - 1 MCQs with Answers

Prepare for the Strings - 1 within the EmSAT Achieve exam with comprehensive MCQs and answers at EduRev. Our platform offers a wide range of practice papers, question papers, and mock tests to familiarize you with the exam pattern and syllabus. Access the best books, study materials, and notes curated by toppers to enhance your preparation. Stay updated with the exam date and receive expert preparation tips and paper analysis. Visit EduRev's official website today and access a wealth of videos and coaching resources to excel in your exam.

Online Tests for Strings - 1 C++ for EmSAT Achieve

Practice with a wide array of question papers that follow the exam pattern and syllabus. Our platform offers a user-friendly interface, allowing you to track your progress and identify areas for improvement. Access detailed solutions and explanations for each test to enhance your understanding of concepts. With EduRev's Online Tests, you can build confidence, boost your performance, and ace Strings - 1 with ease. Join thousands of successful students who have benefited from our trusted online resources.
© EduRev
Education Revolution
Signup to see your scores go up within 7 days!
Access 1000+ FREE Docs, Videos and Tests
Takes less than 10 seconds to signup