**Quiz 5**

**Question 1 **

2 out of 2 points

In a _______ integer model, some solution values for decision variables are integer and others can be non-integer.Answer | ||||

Selected Answer: mixedCorrect Answer: mixed |

**Question 2 **

2 out of 2 points

In a total integer model, some solution values for decision variables are integer and others can be non-integer. Answer | ||||

Selected Answer: FalseCorrect Answer: False |

**Question 3 **

2 out of 2 points

In a problem involving capital budgeting applications, the 0-1 variables designate the acceptance or rejection of the different projects. Answer | ||||

Selected Answer: TrueCorrect Answer: True |

**Question 4 **

2 out of 2 points

If a maximization linear programming problem consist of all less-than-or-equal-to constraints with all positive coefficients and the objective function consists of all positive objective function coefficients, then rounding down the linear programming optimal solution values of the decision variables will ______ result in a(n) _____ solution to the integer linear programming problem.Answer | ||||

Selected Answer: sometimes, optimalCorrect Answer: sometimes, optimal |

**Question 5 **

2 out of 2 points

The branch and bound method of solving linear integer programming problems is an enumeration method. Answer | ||||

Selected Answer: TrueCorrect Answer: True |

**Question 6 **

2 out of 2 points

In a mixed integer model, all decision variables have integer solution values. Answer | ||||

Selected Answer: FalseCorrect Answer: False |

**Question 7 **

2 out of 2 points

For a maximization integer linear programming problem, feasible solution is ensured by rounding _______ non-integer solution values if all of the constraints are less-than -or equal- to type.Answer | ||||

Selected Answer: downCorrect Answer: down |

**Question 8 **

2 out of 2 points

In a total integer model, all decision variables have integer solution values. Answer | ||||

Selected Answer: TrueCorrect Answer: True |

**Question 9 **

2 out of 2 points

The 3 types of integer programming models are total, 0 – 1, and mixed. Answer | ||||

Selected Answer: TrueCorrect Answer: True |

**Question 10 **

2 out of 2 points

The branch and bound method of solving linear integer programming problems is ________________.Answer | ||||

Selected Answer: an enumeration methodCorrect Answer: an enumeration method |

**Question 11 **

2 out of 2 points

The linear programming relaxation contains the _______ and the original constraints of the integer programming problem, but drops all integer restrictions.Answer | ||||

Selected Answer: objective functionCorrect Answer: objective function |

**Question 12 **

2 out of 2 points

The branch and bound method can only be used for maximization integer programming problems. Answer | ||||

Selected Answer: FalseCorrect Answer: False |

**Question 13 **

2 out of 2 points

The solution value (Z) to the linear programming relaxation of a minimization problem will always be less than or equal to the optimal solution value (Z) of the integer programming minimization problem Answer | ||||

Selected Answer: TrueCorrect Answer: True |

**Question 14 **

2 out of 2 points

The implicit enumeration methodAnswer | ||||

Selected Answer: eliminates obviously infeasible solutions and evaluates the remaining solutions to determine which one is optimalCorrect Answer: eliminates obviously infeasible solutions and evaluates the remaining solutions to determine which one is optimal |

**Question 15 **

2 out of 2 points

Types of integer programming models are _____________.Answer | ||||

Selected Answer: all of the aboveCorrect Answer: all of the above |

**Question 16 **

2 out of 2 points

In a 0 – 1 integer model, the solution values of the decision variables are 0 or 1. Answer | ||||

Selected Answer: TrueCorrect Answer: True |

**Question 17 **

2 out of 2 points

Which of the following is not an integer linear programming problem?Answer | ||||

Selected Answer: continuousCorrect Answer: continuous |

**Question 18 **

2 out of 2 points

In a mixed integer model, some solution values for decision variables are integer and others can be non-integer. Answer | ||||

Selected Answer: TrueCorrect Answer: True |

**Question 19 **

2 out of 2 points

Rounding small values of decision variables to the nearest integer value causes ______________ problems than rounding large values.Answer | ||||

Selected Answer: moreCorrect Answer: more |

**Question 20 **

2 out of 2 points

In using rounding of a linear programming model to obtain an integer solution, the solution isAnswer | ||||

Selected Answer: sometimes optimal and feasibleCorrect Answer: sometimes optimal and feasible |

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