Explore topic-wise MCQs in Technical MCQs.

This section includes 9 Mcqs, each offering curated multiple-choice questions to sharpen your Technical MCQs knowledge and support exam preparation. Choose a topic below to get started.

1.

which of this can not be declared as virtual

A. Constructor
B. Destructor
C. Both A & B
D. None of the above
E.
Answer» D. None of the above
Discussion
2. 

#include <iostream>using namespace std;int i;class LFC{public:    ~LFC()    {        i=10;    }};int foo(){    i=3;    LFC ob;    return i;}  int main(){    cout << foo() << endl;    return 0;}
19.If the copy constructor receives its arguments by value, the copy constructor would

A. Call one-argument constructor of the class
B. Work without any problem
C. Call itself recursively
D. Call zero-argument constructor
Answer» D. Call zero-argument constructor
Discussion
3. 

#include <iostream>using namespace std;class LFC{    private:        int x;    public:        void LFC(){x=0; printf("Object created.");}        void LFC(int a){x=a;}};int main(){    LFC s;    return 0;}
18.What will be the output of the following program?

A. 0
B. 10
C. 3
D. None of the above
Answer» C. 3
Discussion
4. 

#include <iostream>using namespace std;class LFC{    private:        int x,y;    public:        void LFC(int a,int b)        { x=a; y=b;}};int main(){    LFC s;    return 0;}
17.What will be the output of this program?

A. Compile Time Error
B. Object Created.
C. Run Time Error
D. Cannot be predicted
Answer» C. Run Time Error
Discussion
5. 

#include <iostream>using namespace std;class LFC{    int x;    public:    LFC(short ss)    {        cout<< "Short" << endl;    }    LFC(int xx)    {        cout<< "Int" << endl;    }    LFC(float ff)    {        cout<< "Float" << endl;    }    ~LFC()     {        cout<< "Final";    }};int main(){    LFC *ptr = new LFC('F');    return 0; }
16.What will be the output of this program?

A. Compile Time Error
B. Run Time Error
C. No Error
D. Warning
Answer» B. Run Time Error
Discussion
6. 

#include <iostream>using namespace std;class LFC{    int *p;     public:    LFC(int xx, char ch)    {        p  = new int();         *p = xx + int(ch);         cout<< *p;    }    ~LFC()     {        delete p;    }};int main(){    LFC obj(15, 'A');     return 0;}
15.Which of the following is true about the following program

A. The program will print the output Short .
B. The program will print the output Final .
C. The program will print the output Float .
D. The program will print the output Int.
Answer» E.
Discussion
7. 

#include <iostream>using namespace std;class LFC{      int x;     public:      LFC();      ~LFC();      void Show() const;};LFC::LFC(){    x = 50;}void LFC::Show() const{    cout<< x;}int main(){    LFC obj;    obj.Show();    return 0; }
14.Which of the following statement is correct about the program given below?

A. The program will print the output 80.
B. The program will print the output 112.
C. The program will print the output garbage value.
D. The program will report compile time error.
Answer» B. The program will print the output 112.
Discussion
8. 

#include <iostream>using namespace std;class LFC{    public:   LFC()    {        cout<< "find";    }    ~LFC()    {        cout<< "course";    }};int main(){    LFC obj;    return 0;}
13.What is the output of this program?

A. The program will print the output 50.
B. The program will print the output Garbage-value.
C. The program will report compile time error.
D. The program will report runtime error.
Answer» D. The program will report runtime error.
Discussion
9. 

#include <iostream>using namespace std;class LFC{    int x;    public:    LFC(int xx, float yy)    {        cout<< char(yy);    }};int main(){    LFC *p = new LFC(35, 99.50f);    return 0;}
12.What is the output of this program?

A. The program will print the output find.
B. The program will print the output course.
C. The program will print the output findcourse.
D. The program will report compile time error.
Answer» D. The program will report compile time error.
Discussion