Explore topic-wise MCQs in Engineering.

Which of the following statement is correct about the program given below?

#include<iostream.h> long FactFinder(long = 5); int main()
{ for(int i = 0; i<= 0; i++) cout<< FactFinder() << endl; return 0;
}
long FactFinder(long x)
{ if(x < 2) return 1; long fact = 1; for(long i = 1; i <= x-1; i++) fact = fact * i; return fact; }

Which of the following statement is correct about the program given below?

#include<iostream.h> static int Result;
class India
{ public: void Change(int x = 10, int y = 20, int z = 30) { cout<< x + y + z; } void Display(int x = 40, float y = 50.00) { Result = x % x; cout<< Result; }
};
class Bix
{ int x, y; public: void Change(int x, int y = 50) { cout<< x + y; }
};
class IndiaBix: public India, public Bix
{ public: void Display(int x = 10, int xx = 100, int xxx = 1000) { Result = x + xx % x * x; cout<< Result ; }
};
int main()
{ IndiaBix objBix; objBix.India::Display(10, 20.00); return 0; }

Which of the following statement is correct about the program given below?

#include<iostream.h> class IndiaBix
{ int x; float y; public: void BixFunction(int = 0, float = 0.00f, char = 'A'); void BixFunction(float, int = 10.00, char = 'Z'); void BixFunction(char, char, char);
};
int main()
{ IndiaBix objBix; objBix.BixFunction(10 * 1.0, int(56.0)); return 0;
}
void IndiaBix::BixFunction(int xx, float yy, char zz)
{ x = xx + int(yy); cout<< "x = " << x << endl;
}
void IndiaBix::BixFunction(float xx, int yy, char zz)
{ x = zz + zz; y = xx + yy; cout<< " x = " << x << endl;
}
void IndiaBix::BixFunction(char xx, char yy, char zz)
{ x = xx + yy + zz; y = float(xx * 2); cout<< " x = " << x << endl;
}

What will be the output of the following program?

#include<iostream.h> class Base
{ public: int S, A, M; Base(int x, int y) { S = y - y; A = x + x; M = x * x; } Base(int, int y = 'A', int z = 'B') { S = y; A = y + 1 - 1; M = z - 1; } void Display(void) { cout<< S << " " << A << " " << M << endl; }
};
class Derived : public Base
{ int x, y, z; public: Derived(int xx = 65, int yy = 66, int zz = 67): Base(x) { x = xx; y = yy; z = zz; } void Display(int n) { if(n) Base::Display(); else cout<< x << " " << y << " " << z << endl; }
};
int main()
{ Derived objDev; objDev.Display(-1); return 0;
}

What will be the output of the following program?

#include<iostream.h> class Base
{ public: char S, A, M; Base(char x, char y) { S = y - y; A = x + x; M = x * x; } Base(char, char y = 'A', char z = 'B') { S = y; A = y + 1 - 1; M = z - 1; } void Display(void) { cout<< S << " " << A << " " << M << endl; }
};
class Derived : public Base
{ char x, y, z; public: Derived(char xx = 65, char yy = 66, char zz = 65): Base(x) { x = xx; y = yy; z = zz; } void Display(int n) { if(n) Base::Display(); else cout<< x << " " << y << " " << z << endl; }
};
int main()
{ Derived objDev; objDev.Display(0-1); return 0;
}

Which of the following statement is correct about the program given below?

#include<iostream.h> static double gDouble; static float gFloat; static double gChar; static double gSum = 0; class BaseOne
{ public: void Display(double x = 0.0, float y = 0.0, char z = 'A') { gDouble = x; gFloat = y; gChar = int(z); gSum = gDouble + gFloat + gChar; cout << gSum; }
};
class BaseTwo
{ public: void Display(int x = 1, float y = 0.0, char z = 'A') { gDouble = x; gFloat = y; gChar = int(z); gSum = gDouble + gFloat + gChar; cout << gSum; }
};
class Derived : public BaseOne, BaseTwo
{ void Show() { cout << gSum; } }; int main()
{ Derived objDev; objDev.BaseTwo::Display(10, 20, 'Z'); return 0; }

What will be the output of the following program?

#include<iostream.h>
double BixFunction(double, double, double = 0, double = 0, double = 0);
int main()
{ double d = 2.3; cout<< BixFunction(d, 7) << " "; cout<< BixFunction(d, 7, 6) << endl; return 0; }
double BixFunction(double x, double p, double q, double r, double s)
{ return p +(q +(r + s * x)* x) * x;
}

What will be the output of the following program?

#include<iostream.h> int main()
{ float Amount; float Calculate(float P = 5.0, int N = 2, float R = 2.0); Amount = Calculate(); cout<< Amount << endl; return 0;
} float Calculate(float P, int N, float R)
{ int Year = 1; float Sum = 1 ; Sum = Sum * (1 + P * ++N * R); Year = (int)(Year + Sum); return Year; }

Which of the following statement is correct about the program given below?

#include<iostream.h> class IndiabixSample
{ private: int AdditionOne(int x, int y = 1) { return x * y; } public: int AdditionTwo(int x, int y = 1) { return x / y; } }; int main()
{ IndiabixSample objBix; cout<<objBix.AdditionOne(4, 8)<<" "; cout<<objBix.AdditionTwo(8, 8); return 0;
}

What will be the out of the following program?

#include<iostream.h> class BixBase
{ protected: int x, y; public: BixBase(int xx = 0, int yy = 0) { x = xx; y = yy; } void Show() { cout<< x * this->y << endl; }
};
class BixDerived
{ private: BixBase objBase; public: BixDerived(int xx, int yy) : objBase(xx, yy) { objBase.Show(); } ~BixDerived() { }
};
int main()
{ BixDerived objDev(10, 20); return 0;
}

What will be the out of the following program?

#include<iostream.h> class BixBase
{ public: int x, y; public: BixBase(int xx = 0, int yy = 0) { x = xx; y = yy; } };
class BixDerived : public BixBase
{ private: BixBase objBase; public: BixDerived(int xx, int yy) : BixBase(xx), objBase(yy) { cout << this->x << " " << this->y << " " << objBase.x << " " << objBase.y << " "; } ~BixDerived() { }
};
int main()
{ BixDerived objDev(11, 22); return 0;
}

What will be the out of the following program?

#include<iostream.h> class BixBase
{ public: int x, y; public: BixBase(int xx = 0, int yy = 0) { x = xx; y = yy; } };
class BixDerived : public BixBase
{ private: BixBase objBase; public: BixDerived(int xx, int yy) : BixBase(xx), objBase(yy) { cout << x << " " << this->x << " " << BixBase::x << " " << this->objBase.x ; } ~BixDerived() { }
};
int main()
{ BixDerived objDev(11, 22); return 0;
}

Which of the following statement is correct about the program given below?

#include<iostream.h>
void Tester(int xx, int yy = 5);
class IndiaBix
{ int x; int y; public: void Tester(int xx, int yy = 5) { x = xx; y = yy; cout<< ++x % --y; }
};
int main()
{ IndiaBix objBix; objBix.Tester(5, 5); return 0; }

Which of the following statement is correct about the program given below?

#include<iostream.h> class PowerFinder
{ public: void Power(int x = 1, int y = 1) { int P = 1, i = 1; while(++i <= y) { P *= x; } cout<< P << endl; } };
int main()
{ PowerFinder FP; FP.Power(2, 6); return 0;
}

Which of the following statement is correct about the program given below?

#include<iostream.h>
long GetNumber(long int Number)
{ return --Number;
}
float GetNumber(int Number)
{ return ++Number;
}
int main()
{ int x = 20; int y = 30; cout<< GetNumber(x) << " "; cout<< GetNumber(y) ; return 0; }

Which of the following statement is correct about the program given below?

#include<iostream.h>
int BixTest(int x, int y);
int BixTest(int x, int y, int z = 5);
int main()
{ cout<< BixTest(2, 4) << endl; return 0;
}
int BixTest(int x, int y)
{ return x * y;
}
int BixTest(int x, int y, int z = 5)
{ return x * y * z; }

Which of the following statement is correct about the program given below?

#include<iostream.h> struct MyStructure
{ class MyClass { public: void Display(int x, float y = 97.50, char ch = 'a') { cout<< x << " " << y << " " << ch; } }Cls; }Struc; int main()
{ Struc.Cls.Display(12, 'b'); return 0; }

What will be the output of the following program?

#include<iostream.h> class IndiaBix
{ int Num; public: IndiaBix(int x) { Num = x; } int BixFunction(void);
};
int IndiaBix::BixFunction(void)
{ static int Sum = 0; int Dec; Dec = Num % 10; Num = Num / 10; if((Num / 100)) BixFunction(); Sum = Sum * 10 + Dec; return Sum;
}
int main()
{ IndiaBix objBix(12345); cout<< objBix.BixFunction(); return 0; }

What is correct about the following program?

#include<iostream.h> class Addition
{ int x; public: Addition() { x = 0; } Addition(int xx) { x = xx; } Addition operator + (int xx = 0) { Addition objTemp; objTemp.x = x + xx; return(objTemp); } void Display(void) { cout<< x << endl; }
};
int main()
{ Addition objA(15), objB; objB = objA + 5; objB.Display(); return 0; }

What will be the output of the following program?

#include<iostream.h> class TestDrive
{ int x; public: TestDrive(int xx) { x = xx; } int DriveIt(void);
};
int TestDrive::DriveIt(void)
{ static int value = 0; int m; m = x % 2; x = x / 2; if((x / 2)) DriveIt(); value = value + m * 10; return value;
}
int main()
{ TestDrive TD(1234); cout<< TD.DriveIt() * 10 << endl; return 0; }

What will be the output of the following program?

#include<iostream.h>
#include<string.h> class BixString
{ char x[50]; char y[50]; char z[50]; public: BixString() { } BixString(char* xx) { strcpy(x, xx); strcpy(y, xx); } BixString(char *xx, char *yy = " C++", char *zz = " Programming!") { strcpy(z, xx); strcat(z, yy); strcat(z, zz); } void Display(void) { cout<< z << endl; } }; int main()
{ BixString objStr("Learn", " Java"); objStr.Display(); return 0; }

What will be the output of the following program?

#include<iostream.h> class BaseCounter
{ protected: long int count; public: void CountIt(int x, int y = 10, int z = 20) { count = 0; cout<< x << " " << y << " " << z << endl; } BaseCounter() { count = 0; } BaseCounter(int x) { count = x ; } }; class DerivedCounter: public BaseCounter
{ public: DerivedCounter() { } DerivedCounter(int x): BaseCounter(x) { }
};
int main()
{ DerivedCounter objDC(30); objDC.CountIt(40, 50); return 0; }

What will be the output of the following program?

#include<iostream.h> class Number
{ int Num; public: Number(int x = 0) { Num = x; } void Display(void) { cout<< Num; } void Modify(); };
void Number::Modify()
{ int Dec; Dec = Num % 13; Num = Num / 13; if(Num > 0 ) Modify() ; if(Dec == 10) cout<< "A" ; else if(Dec == 11) cout<< "B" ; else if(Dec == 12) cout<< "C" ; else if(Dec == 13) cout<< "D" ; else cout<< Dec ;
}
int main()
{ Number objNum(130); objNum.Modify(); return 0; }

What will be the output of the following program?

#include<iostream.h> class IndiaBix
{ public: int x, y; IndiaBix(int xx = 10, int yy = 20) { x = xx; y = yy; } void Exchange(int *, int *);
};
int main()
{ IndiaBix objA(30, 40); IndiaBix objB(50); objA.Exchange(&objA.x, &objB.y); cout<< objA.x << " " << objB.y << endl; return 0;
}
void IndiaBix::Exchange(int *x, int *y)
{ int t; t = *x; *x = *y; *y = t ; }

Which of the following statement is correct about the program given below?

#include<iostream.h> class BixArray
{ int Matrix[3][3]; public: BixArray() { for(int i = 0; i<3; i++) for(int j = 0; j < 3; j++) Matrix[j][i] = i + j; } void Display(void) { for(int i = 0; i < 3; i++) for(int j = 0; j < 3; j++) cout<< Matrix[j][i] << " "; } }; int main()
{ BixArray objBix; objBix.Display(); return 0; }

Which of the following statement is correct about the program given below?

#include<iostream.h>
#include<string.h>
#include<malloc.h>
class BixString
{ char txtName[20]; public: BixString(char *txtTemp = NULL) { if(txtTemp != NULL) strcpy(txtName, txtTemp); } void Display(void) { cout<<txtName; }
};
int main()
{ char *txtName = (char*)malloc(10); strcpy(txtName, "IndiaBIX"); *txtName = 48; BixString objTemp(txtName); cout<< sizeof(txtName); return 0; }

What will be the output of the following program?

#include<iostream.h> class IndiaBix
{ int x, y, z; public: void Apply(int xx = 12, int yy = 21, int zz = 9) { x = xx; y = yy += 10; z = x -= 2; } void Display(void) { cout<< x << " " << y << endl; } void SetValue(int xx, int yy) { Apply(xx, 0, yy); }
};
int main()
{ IndiaBix *pBix= new IndiaBix; (*pBix).SetValue(12, 20); pBix->Display(); delete pBix; return 0; }

What will be the output of the following program?

#include<iostream.h>
#include<string.h> class IndiaBix
{ char txtMsg[50]; public: IndiaBix(char *str = NULL) { if(str != NULL) strcpy(txtMsg, str); } int BixFunction(char ch);
};
int IndiaBix::BixFunction(char ch)
{ static int i = 0; if(txtMsg[i++] == ch) return strlen((txtMsg + i)) - i; else return BixFunction(ch);
}
int main()
{ IndiaBix objBix("Welcome to IndiaBix.com!"); cout<< objBix.BixFunction('t'); return 0;
}

What will be the output of the following program?

#include<iostream.h> class Base
{ int x, y; public: Base() { x = y = 0; } Base(int xx) { x = xx; } Base(int p, int q = 10) { x = p + q; y = q; } void Display(void) { cout<< x << " " << y << endl; } }objDefault(1, 1); class Derived: public Base
{ Base obj; public: Derived(int xx, int yy): Base(xx, xx + 1) { } Derived(Base objB = objDefault) { } }; int main()
{ Derived objD(5, 3); Derived *ptrD = new Derived(objD); ptrD->Display(); delete ptrD; return 0; }

Which of the following statement is correct about the program given below?

#include<iostream.h>
class IndiaBix
{ int x, y, z; public: IndiaBix(int x = 100, int y = 30, int z = 0) { this->x = x; this->y = y; this->z = z; Display(); } void Display() { cout<< x << " " << y << " " << z; }
};
int main()
{ int a = 0, b = 1, c = 2; int &x = ++a; int &y = --b; int z = c + b - -c; IndiaBix objBix(x, y, z); return 0; }

Which of the following statement is correct about the program given below?

#include<iostream.h> class BixArray
{ int array[3][3]; public: BixArray(int arr[3][3] = NULL) { if(arr != NULL) for(int i = 0; i < 3; i++) for(int j = 0; j < 3; j++) array[i][j] = i+j; } void Display(void) { for(int i = 0; i < 3; i++) for(int j = 0; j < 3; j++) cout<< array[i][j] << " "; }
};
int main()
{ BixArray objBA; objBA.Display(); return 0; }

Which of the following statement is correct about the program given below?

#include<iostream.h> class IndiaBix
{ int x; float y; public: IndiaBix(int x) { x = x; } IndiaBix(int p = 0, int q = 10) { x = p += 2; y = q * 1.0f; } void SetValue(int &y, float z) { x = y; y = (int)z; } void Display(void) { cout<< x; }
};
int main()
{ int val = 12; IndiaBix objBix(val); IndiaBix objTmp(); objBix.SetValue(val, 3.14f); objBix.Display(); return 0; }

What will be the output of the following program?

#include<iostream.h> struct BixArray
{ int arr[5]; public: void BixFunction(); void Display();
};
void BixArray::BixFunction()
{ static int i = 0, j = 4; i++; j--; if(j > 0) BixFunction(); int tmp = arr[i]; arr[i] = arr[j]; arr[j] = tmp; i--; j++;
}
void BixArray::Display()
{ for(int i = 0; i < 5; i++) cout<< arr[i] << " ";
} int main()
{ BixArray objArr = {{5, 6, 3, 9, 0}}; objArr.BixFunction(); objArr.Display(); return 0; }

What will be the output of the following program?

#include<iostream.h> class IndiaBix
{ int x; public: IndiaBix(int xx, float yy) { cout<< char(yy); } }; int main()
{ IndiaBix *p = new IndiaBix(35, 99.50f); return 0; }

Which of the following statement is correct about the program given below?

#include<iostream.h> class Bix
{ int x; public: Bix(); ~Bix(); void Show() const;
};
Bix::Bix()
{ x = 25;
}
void Bix::Show() const
{ cout<< x;
}
int main()
{ Bix objB; objB.Show(); return 0; }

What will be the output of the following program?

#include<iostream.h>
long BixFunction(int x, int y = 5, float z = 5)
{ return(++x * ++y + (int)++z);
}
int main()
{ cout<< BixFunction(20, 10); return 0;
}

What will be the output of the following program?

#include<iostream.h>
int BixFunction(int a, int b = 3, int c = 3)
{ cout<< ++a * ++b * --c ; return 0;
}
int main()
{ BixFunction(5, 0, 0); return 0;
}

What will be the output of the following program?

#include<iostream.h> void MyFunction(int a, int b = 40)
{ cout<< " a = "<< a << " b = " << b << endl;
}
int main()
{ MyFunction(20, 30); return 0; }

Which of the following statement is correct about the program given below?

#include<iostream.h> static int b = 0; void DisplayData(int *x, int *y = &b)
{ cout<< *x << " " << *y;
}
int main()
{ int a = 10, b = 20 ; DisplayData(&a, &b); return 0; }

What will be the output of the following program?

#include<iostream.h> typedef void(*FunPtr)(int);
int Look(int = 10, int = 20);
void Note(int); int main()
{ FunPtr ptr = Note; (*ptr)(30); return 0;
}
int Look(int x, int y)
{ return(x + y % 20);
}
void Note(int x)
{ cout<< Look(x) << endl;
}

Which of the following can access private data members or member functions of a class?

Constructor is executed when _____.

Which of the following also known as an instance of a class?

Which of the following type of data member can be shared by all instances of its class?

Which of the following statements about virtual base classes is correct?

Which of the following statements is correct when a class is inherited publicly?

Which of the following access specifies is used in a class definition by default?

Which of the following statements is correct about the constructors and destructors?

What will be the output of the following program?

#include<iostream.h> struct IndiaBix
{ int arr[5]; public: void BixFunction(void); void Display(void);
};
void IndiaBix::Display(void)
{ for(int i = 0; i < 5; i++) cout<< arr[i] << " " ;
}
void IndiaBix::BixFunction(void)
{ static int i = 0, j = 4; int tmp = arr[i]; arr[i] = arr[j]; arr[j] = tmp ; i++; j--; if(j != i) BixFunction();
}
int main()
{ IndiaBix objBix = {{ 5, 6, 3, 9, 0 }}; objBix.BixFunction(); objBix.Display(); return 0; }

Which of the following statement is correct about the program given below?

#include<iostream.h> class IndiaBix
{ static int x; public: static void SetData(int xx) { x = xx; } void Display() { cout<< x ; }
};
int IndiaBix::x = 0; int main()
{ IndiaBix::SetData(33); IndiaBix::Display(); return 0; }