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CBSE Class 10  >  Class 10 Test  >  C++ Programming for Beginners  >  Test: C++ Booleans - Class 10 MCQ

C++ Booleans - Class 10 Programming Free MCQ Test with solutions


MCQ Practice Test & Solutions: Test: C++ Booleans (10 Questions)

You can prepare effectively for Class 10 C++ Programming for Beginners with this dedicated MCQ Practice Test (available with solutions) on the important topic of "Test: C++ Booleans". These 10 questions have been designed by the experts with the latest curriculum of Class 10 2026, to help you master the concept.

Test Highlights:

  • - Format: Multiple Choice Questions (MCQ)
  • - Duration: 10 minutes
  • - Number of Questions: 10

Sign up on EduRev for free to attempt this test and track your preparation progress.

Test: C++ Booleans - Question 1
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Find the odd one out.

Detailed Solution: Question 1

std::vector<bool> is a specialized version of vector, which is used for elements of type bool and optimizes for space. It behaves like the unspecialized version of vector and the storage is not necessarily an array of bool values, but the library implementation may optimize storage so that each value is stored in a single bit.

Test: C++ Booleans - Question 2
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What happens when a null pointer is converted into bool?

Detailed Solution: Question 2

A pointer can be implicitly converted to a bool. A nonzero pointer converts to true and zero valued pointer converts to false.

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Test: C++ Booleans - Question 3
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For what values of the expression is an if-statement block not executed?

Detailed Solution: Question 3

The if-statement block is only not executed when the expression evaluates to 0. its just syntactic sugar for a branch-if-zero instruction.

Test: C++ Booleans - Question 4
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What will be the output of the following C++ code?

    #include <iostream>
    using namespace std;
    int f(int p, int q)
    {
        if (p > q)
            return p;
        else
            return q;
    }
    main()
    {
        int a = 5, b = 10;
        int k;
        bool x = true;
        bool y = f(a, b);
        k =((a * b) + (x + y));
        cout << k;
    }

Detailed Solution: Question 4

In this question, value of x = true and value of y will be also true as f(a,b) will return a non-zero value. Now when adding these values with integers, the implicit type conversion takes place hence converting both x and y to 1(integer equivalent of bool true value). So expression (a*b) + (x+y) is evaluated to 52.

Test: C++ Booleans - Question 5
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Evaluate the following.

(false && true) || false || true

Detailed Solution: Question 5

The given expression is equivalent to
[( false AND True) OR false OR true] This is OR or three values so if any of them will be true then the whole exp will be true and as we have last value as true so the answer of expression will be TRUE.

Test: C++ Booleans - Question 6
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Is bool a fundamental data type in C++?

Detailed Solution: Question 6

C++ has bool as a fundamental data type.

Test: C++ Booleans - Question 7
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What is the value of the bool?

Detailed Solution: Question 7

The given number is a double not an integer, so the function returns 0 which is boolean false.

Test: C++ Booleans - Question 8
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Which of the following statements are false?

Detailed Solution: Question 8

Boolean can be used as a return value of a function.

Test: C++ Booleans - Question 9
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Which of the two operators ++ and — work for the bool data type in C++?

Detailed Solution: Question 9

Due to the history of using integer values as booleans, if an integer is used as a boolean, then incrementing will mean that whatever its truth value before the operation, it will have a truth-value of true after it. However, it is not possible to predict the result of — given knowledge only of the truth value of x, as it could result in false.

Test: C++ Booleans - Question 10
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What is the value of p in the following C++ code?

    #include <iostream>
    using namespace std;
    int main()
    {
        int p;
        bool a = true;
        bool b = false;
        int x = 10;
        int y = 5;
        p = ((x | y) + (a + b));
        cout << p;
        return 0;
    }

Detailed Solution: Question 10

| means bitwise OR operation so x | y (0101 | 1010) will be evaluated to 1111 which is integer 15 and as a is true and b is false so a+b(1 + 0) = 1. So final value of expression in line #10 will be 15 + 1 = 16.

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About this Class 10 Practice Test

This test contains 10 MCQs on C++ Booleans with detailed solutions for each question. It is part of the C++ Programming for Beginners course on EduRev, designed to align with the current Class 10 syllabus. Each solution explains not just the correct answer but also gives you an understanding of the topic — not just to attempt the question but also help you prepare for the exam with practice.

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