1. The standard form for the computer solution of a
linear programming problem requires all variables to the right and all
numerical values to the left of the inequality or equality sign
True/ False
2. _________ is maximized in the objective
function by subtracting cost from revenue.
Profit
Revenue
Cost
Productivity
3. A croissant shop produces 2 products: bear
claws (B) and almond filled croissants (C). Each bear claw requires 6 ounces of
flour, 1 ounce of yeast, and 2 TS of almond paste. An almond filled croissant
requires 3 ounces of flour, 1 ounce of yeast, and 4 TS of almond paste. The
company has 6600 ounces of flour, 1400 ounces of yeast, and 4800 TS of almond
paste available for today s production run. Bear claw profits are 20 cents
each, and almond filled croissant profits are 30 cents each. What is the
optimal daily profit?
$380
$400
$420
$440
$480
4. In an unbalanced transportation model,
supply does not equal demand and supply constraints have signs. True/ False
5. The production manager for Liquor etc.
produces 2 kinds of beer: light and dark. Two of his resources are constrained:
malt, of which he can get at most 4800 oz per week; and wheat, of which he can
get at most 3200 oz per week. Each bottle of light beer requires 12 oz of malt
and 4 oz of wheat, while a bottle of dark beer uses 8 oz of malt and 8 oz of
wheat. Profits for light beer are $2 per bottle, and profits for dark beer are
$1 per bottle. What is the objective function?
Z = $1L + $2D
Z = $4L + $8D
Z = $12L + $8D
Z = $2L + $1D
Z = $2L + $4D
6. In a media selection problem, the
estimated number of customers reached by a given media would generally be
specified in the _________________. Even if these media exposure estimates are
correct, using media exposure as a surrogate does not lead to maximization
of___.
problem constraints, sales
problem constraints, profits
objective function, profits
problem output, marginal revenue
problem statement, revenue
7. The owner of Chips etc. produces 2 kinds
of chips: Lime (L) and Vinegar (V). He has a limited amount of the 3
ingredients used to produce these chips available for his next production run:
4800 ounces of salt, 9600 ounces of flour, and 2000 ounces of herbs. A bag of
Lime chips requires 2 ounces of salt, 6 ounces of flour, and 1 ounce of herbs
to produce; while a bag of Vinegar chips requires 3 ounces of salt, 8 ounces of
flour, and 2 ounces of herbs. Profits for a bag of Lime chips are $0.40, and
for a bag of Vinegar chips $0.50. Which of the following is not a feasible
production combination?
0L and 0V
0L and 1000V
1000L and 0V
0L and 1200V
8. When formulating a linear programming
model on a spreadsheet, the measure of performance is located in the target
cell. True/ False
9. In a balanced transportation model, supply
equals demand such that all constraints can be treated as equalities. True/
False
10. In a media selection problem, instead of
having an objective of maximizing profit or minimizing cost, generally the
objective is to maximize the audience exposure. True/ False
11. ____________ solutions are ones that
satisfy all the constraints simultaneously.
alternate
feasible
infeasible
optimal
unbounded
12. The production manager for the Softy soft
drink company is considering the production of 2 kinds of soft drinks: regular
and diet. Two of her resources are constraint production time (8 hours = 480
minutes per day) and syrup (1 of her ingredient) limited to 675 gallons per
day. To produce a regular case requires 2 minutes and 5 gallons of syrup, while
a diet case needs 4 minutes and 3 gallons of syrup. Profits for regular soft
drink are $3.00 per case and profits for diet soft drink are $2.00 per case.
What is the optimal daily profit?
$220
$270
$320
$420
$520
13. Determining the production quantities of
different products manufactured by a company based on resource constraints is a
product mix linear programming problem. True/ False
14. When using linear programming model to
solve the diet problem, the objective is generally to maximize profit. True/
False
15. Profit is maximized in the objective
function by
subtracting cost from revenue
subtracting revenue from cost
adding revenue to cost
multiplying revenue by cost
16. Linear programming model of a media
selection problem is used to determine the relative value of each advertising
media. True/ False
17. Media selection is an important decision
that advertisers have to make. In most media selection decisions, the objective
of the decision maker is to minimize cost. True/ False
18. The dietician for the local hospital is
trying to control the calorie intake of the heart surgery patients. Tonight s
dinner menu could consist of the following food items: chicken, lasagna,
pudding, salad, mashed potatoes and jello. The calories per serving for each of
these items are as follows: chicken (600), lasagna (700), pudding (300), salad
(200), mashed potatoes with gravy (400) and jello (200). If the maximum calorie
intake has to be limited to 1200 calories. What is the dinner menu that would
result in the highest calorie in take without going over the total calorie
limit of 1200.
chicken, mashed potatoes and gravy, jello and
salad
lasagna, mashed potatoes and gravy, and jello
chicken, mashed potatoes and gravy, and
pudding
lasagna, mashed potatoes and gravy, and salad
chicken, mashed potatoes and gravy, and salad
19. In a multi-period scheduling problem the
production constraint usually takes the form of :
beginning inventory + demand – production =
ending inventory
beginning inventory – demand + production =
ending inventory
beginning inventory – ending inventory +
demand = production
beginning inventory – production – ending
inventory = demand
beginning inventory + demand + production =
ending inventory
20. A constraint for a linear programming
problem can never have a zero as its right-hand-side value. True/ False
