Engineering Problem Solving with C++, 3e Chapter 3 Test Bank
1. Evaluate the following expressions.
A. 13 < 6
B. (7 > 9) && (6 != 5)
C. (4 < 3) || (4 >= 0)
D. !(‘F’ < ‘M’)
2. What is the correct output from the following program?
#include <iostream>
using namespace std;
int main()
{ int A, B;
A = 6;
B = 1;
if (A > B)
{ A = A * B + 2;
B ++;
}
else
{ A = A / 2;
B = B + 4;
}
cout << “A = “ << A << “ B = “ << B;
return 0;
}
A. A = 8 B = 2
B. A = 3 B = 5 C. A = 4 B = 6
D. None of the above is correct
Engineering Problem Solving with C++, 3e Chapter 3 Test Bank
3. What is the output of the following program?
#include <iostream>
using namespace std;
int main()
{ int Num, X, Y;
Num = 4;
X = 5;
Y = 6;
switch (Num)
{ case 1: X = Num;
break;
case 2: Y = Y + 3;
case 3: X = Num + 4;
break;
case 4: X = X * 3;
default: Y = Y – 3;
}
cout << “X = ” << X << ” and Y = ” << Y;
return 0;
}
A. X = 4 and Y = 6
B. X = 8 and Y = 9
C. X = 15 and Y = 3
D. X = 15, Y = 6
E. None of the above are correct
Engineering Problem Solving with C++, 3e Chapter 3 Test Bank
4. What is the output of the following program?
#include <iostream>
using namespace std;
int main()
{ int X, Y;
X = 30;
if (X <= 5)
{ Y = X * X;
X = X + 5;
}
else
{ if (X < 10)
Y = X – 2;
else if (X < 25)
Y = X + 10;
else
Y = X / 10;
X++;
}
cout << “Y = “ << Y << “; X = “ << X;
return 0;
}
A. Y = 3, X = 31
B. Y = 28, X =31
C. Y = 40, X = 31
D. Y = 900, X = 35
E. None of the above are correct
Engineering Problem Solving with C++, 3e Chapter 3 Test Bank
5. Which of the following operators is a relational operator
A. !
B. &&
C. =
D. <=
6. Which of the following operators is a logical operator
A. !
B. &&
C. =
D. <=
7. Which of the following operators has the highest precedence?
A. !
B. &&
C. =
D. <=
8. The operator = is used to determine whether the left hand operand is equivalent to the right
hand operand.
A. True
B. False
9. The value which follows the word case in a switch statement can be of type integer or
character.
A. True
B. False
10. The operands of the operator || must both be Boolean values.
A. True
B. False
11. A blank space can be placed between the ampersands in the logical operator && to make it
more readable.
A. True
B. False
12. Linear interpolation is used to …
A. approximate a value outside of the range of known data values by determining a line
which best fits the entire data set.
B. approximate a value outside of the range of known data values by extending the line
which connects the last two known data points.
C. approximate a value inside of the range of known data values by determining a line
which best fits the entire data set.
D. approximate a value inside of the range of know data values by connecting adjacent
points in the data set with a line.
Engineering Problem Solving with C++, 3e Chapter 3 Test Bank
13. Which of the following are characteristics of a good algorithm:
A. Improved quality of the solution.
B. Improved maintainability of a solution.
C. Reduced implementation time.
D. All of these are characteristics of a good algorithm.
14. An algorithm is a sequence of steps for solving a problem.
A. True
B. False
15. Top-down design begins with a ‘big picture’ description of a problem solution in sequential
steps; the sequential steps are repeatedly refined until the steps are detailed enough to
translate to computer language statements.
A. True
B. False
16. Structured programming requires the use of complex control structures.
A. True
B. False
17. In C++, the = and == operators perform identical operations and may be used
interchangeably.
A. True
B. False
18. Which of the following C++ operators performs logical not equal:
A. <>
B. ~=
C. !=
D. None of these are logical not equal in C++.
19. Complete the truth table for C++ logical operators.
A
B
A&&B
A||B
!A
!B
false
false
false
true
true
false
true
true
20. C++ only evaluates as much of a logical expression as necessary to evaluate it; this is called
short-circuit evaluation.
A. True
B. False
Engineering Problem Solving with C++, 3e Chapter 3 Test Bank
21. C++ allows overloading operators when working with programmer defined types.
A. True
B. False
22. C++ allows the programmer to overload operators to be used with standard C++ data types.
A. True
B. False
23. The control expression in C++ switch statements may be of type string.
A. True
B. False
