MCQs > Finance & Management > Operations Research MCQs > Basic Operations Research MCQs

Basic Operations Research MCQ

1. From the above table, find the basic feasible solution using the matrix minimum method.

Answer

Correct Answer: 310

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2. Which among the following characteristics of the game theory involves the quantitative measure of satisfaction?

Answer

Correct Answer: Pay-offs

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3. From the above table, determine which alternative is the best to choose if a person is adopting the Hurwics criterion.

Answer

Correct Answer: Stock pile X and associated cost $30000

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4. From the above table, find the basic feasible solution using the matrix minimum method.

Answer

Correct Answer: 7260

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5. Use the property of dominance to find out the value of the saddle point.

Answer

Correct Answer: No saddle point

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6. A discotheque has a single ticket-counter. During rush hours, people arrive at the rate of 50 per hour. The average number of people allowed to enter is 100 per hour. Calculate the average number of people who still have to wait in the queue for their turn.

Answer

Correct Answer: 1

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7.

A manufacturing unit makes 40 units of an automobile part daily. Study the above table and calculate how many more pieces need to be produced to meet the customer demand for the coming 5 days. The demand value according to random numbers is?

Answer

Correct Answer:

35 


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8.

The elements Carbon, Magnesium and Sulfur are found in two products, P and Q. The amount of each element (milligrams per ounce) is given above:

The cost of the products is $5 per ounce and $10 per ounce respectively. The minimum requirement to make this product is 2 mg of Carbon, 5 mg of Magnesium and 8 mg of Sulfur.

Formulate this problem in the Linear Programming Form.

Answer

Correct Answer:

0.15x1 + 0.10x2 ≤ 2 0.50x1 + 0.55x2 ≤ 5 0.25x1 + 0.30x2 ≤ 8 


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9. Develop a network diagram based on the information given in the table.

Answer

Correct Answer: A

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10. Which among the following methods is known as the Unit Penalty Method?

Answer

Correct Answer: Vogel approximation method

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11. In Non-linear Programming, non-linearity exists when:

Answer

Correct Answer: a firm lowers the prices of its goods to make more people buy its goods.

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12. In Dynamic Programming, the value of ..... variables specifies the condition of a process.

Answer

Correct Answer: state variables

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13. Which among the following is not an application of Goal Programming?

Answer

Correct Answer: Improving the work conditions having highly fluctuating demands

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14. Find the value of the above game using the principle of dominance.

Answer

Correct Answer: 7

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15. The Simplex method can solve ........

Answer

Correct Answer: equations which have more numbers of unknowns that the equation itself.

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16.

A company has to supply a number of shoes at the end of each month. Whatever is produced during a given month is available to be supplied to the customers at the end of that respective month. The set up cost is $1000 per set up and $5 per item.

Find the optimal number of shoes to be produced in the month of March.

Answer

Correct Answer:

900 


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17. At a ticket booking centre, if the mean arrival rate of customers is 10 per hour and the mean service rate is 20 per hour, calculate the traffic intensity.

Answer

Correct Answer: 30 per hour

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18. The epsilon quantity used in a degenerate transport problem should be used in cells which accommodate the following solution procedure:

Answer

Correct Answer: 1+E = 1
1- E = 1

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19. Study the above given table and calculate the project's normal distribution(in terms of days).

Answer

Correct Answer: 21 days

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20. ...... is not an element of Sensitivity Analysis.

Answer

Correct Answer: Insolvency

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21. Which one of the following is a cycling error in the Network Logic of PERT/CPM?

Answer

Correct Answer: Looping error

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22. The increase in the probability of a failure with the increase in the life of an item is termed _________.

Answer

Correct Answer: progressive failure

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23. Which among the following is not an element of Linear Programming?

Answer

Correct Answer: Graphical method
Queuing theory

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24. At an interview, the candidates arrive according to the Poisson distribution process with an average time of 10 minutes between each candidate's arrival. The interviewing line is exponentially distributed with a mean time of 5 minutes. On the basis of this information, calculate the average queue length.

Answer

Correct Answer: 1/6

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25. The Monte-Carlo simulation technique _________.

Answer

Correct Answer: uses random numbers for generating data
is used to solve stochastic situations

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26. Which among the following is not an application of optimization in linear programming?

Answer

Correct Answer: Calculus of variations

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27. _________ is the term used to describe the time between starting the first job and finishing the final one.

Answer

Correct Answer: Total elapsed time

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28. Study the above table and calculate the range of the random numbers in which the sum of the average value of the demand and the average value of the profit falls.

Answer

Correct Answer: 40-80

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29. The above table shows the weekly mortality rates for a certain type of washing machines. Calculate the probability of failure in the 5th week.

Answer

Correct Answer: 0.2

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30. A bus arrives at a bus-stand every 10 minutes and the service time is 30 minutes. If the capacity of the bus-stand is 5 buses, calculate the probability of the bus-stand being empty.

Answer

Correct Answer: 0.0027

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31. Use the property of dominance to find out the value of the saddle point.

Answer

Correct Answer: 30/7

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32. The crash cost and the crash time of a project is $50000 and 30 days respectively. The normal cost and the normal time of the same project is $150000 and 180 days respectively. Calculate the cost slope.

Answer

Correct Answer: 0.33

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33. Which state of the system in the Queuing theory lays down that the operating characteristics are dependent on time?

Answer

Correct Answer: Transient state

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34. Which of the following is a term used to describe the behavior of a customer who leaves the queue impatiently after waiting for some period of time?

Answer

Correct Answer: Reneging

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35. The price of a new car is $30000. The annual maintenance cost of the car for the first five years is $8000, $10000, $14000, $18000 and $24000 respectively. If the re-sale value decreases by 5% of the purchase price each year, calculate the best time to have the car replaced.

Answer

Correct Answer: The 1st year is the optimal replacement time.

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36. From the above table, determine which alternative is the best to choose if a person is adopting the Laplace criterion.

Answer

Correct Answer: Stock pile X and associated cost $40000

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37. Which among the following is a characteristic of Dynamic Programming?

Answer

Correct Answer: Dynamic Programming is a multistage decision making process.

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38. The above table represents a transportation problem. Find the basic feasible solution.

Answer

Correct Answer: 13750

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39. Which among the following classes of decisions is related to the external environment of an organization?

Answer

Correct Answer: Strategic decisions

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40. Which of the following types of cost is dependent upon the amount of utilization of resources during the execution of individual activities?

Answer

Correct Answer: Direct cost

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41. In the above table, 6 jobs are given along with their operation time in minutes. Find out the average processing time.

Answer

Correct Answer: 20 minutes

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42. According to the Poisson distribution process analysis, patients come to a hospital at a mean rate of 50 per hour. The time required to attend a patient has an exponential distribution with a mean of 100 per hour. Assuming that every patient is attended by an individual doctor, what would be the waiting time of one patient?

Answer

Correct Answer: 25 minutes

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43. From the above given table, solve the game by finding the saddle point.

Answer

Correct Answer: 8

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44. Goal Programming is used to:

Answer

Correct Answer: handle a single goal with multiple goals.

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45. A solution containing fewer than (m + n -1) non negative allocations where (m= jobs and n=destinations) is termed ________.

Answer

Correct Answer: degenerate basic feasible solution

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46. From the above given table, calculate the saddle point.

Answer

Correct Answer: 50

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47. The simulation technique must be used ________.

Answer

Correct Answer: when the system's actual observation is expensive

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48.

Study the above table and calculate the project's normal distribution(in terms of days).

Calculate the cost of the project if the indirect cost is $100 per day.

Answer

Correct Answer:

$1320


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49.

A company makes two products A and B. The profit per unit of the two products is $80 and $100 respectively. Both the products are sold in three cities. The above table indicates total products sold per week in the three cities.

Formulate this product problem in the Linear Programming Form.

Answer

Correct Answer:

3x1 + 2x2 ≤ 250 4x1 + 3x2 ≤ 300 5x1 + 2x2 ≤ 500


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50. The Vogel's approximate method in Linear Programming is used in solving .... problems.

Answer

Correct Answer: transportation

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51. Which among the following is not an application of Dynamic Programming?

Answer

Correct Answer: Scheduling production

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52. Which among the following models are scaled versions of actual objects?

Answer

Correct Answer: Iconic models

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53. Solve a game, the payoff matrix for which is shown above:

Answer

Correct Answer: -3 and +3

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54. The graphical method for solving transportation problems can be applied to _______ variables.

Answer

Correct Answer: 3

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55. In an experiment in a laboratory, an accuracy level of 80% is needed with a marginal error of 2% of the true value. Calculate the sample size.

Answer

Correct Answer: 2025

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56. Which activity of PERT/CPM does not utilize any kind of resources?

Answer

Correct Answer: Dummy activity

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57. Which among the following types of float causes a decrease in the float of successor activities?

Answer

Correct Answer: Free float

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58. In which of the following fields is Linear Programming technology not useful?

Answer

Correct Answer: Inventory problems

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59. Using the mid square method to generate pseudo random numbers, calculate the value of number 5695 at level 2, if the value represented by the number at level 0 i.e. Ao = 5695.

Answer

Correct Answer: 7489

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60. From the above given table, calculate the saddle point.

Answer

Correct Answer: 4

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61. The above table gives the processing time and due data related to five jobs. Calculate the mean flow time.

Answer

Correct Answer: 17.8 hours

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62. In the above table, the mortality rates for a certain type of health products have been given. Calculate the probability of failure at the end of the 3rd month.

Answer

Correct Answer: 0.25

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63. A petrol pump is opening a customer service centre which will be having only one counter to attend to the people. The manager estimates that the customers will arrive at the rate of 25 per hour. The customer care executive who has been considered for the post can attend customers at the rate of 1 customer every 2 minutes. Assuming Poisson arrivals and exponential service, calculate the average waiting time of the customers.

Answer

Correct Answer: 1/5th of an hour

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64. Which among the following simulation models do not take the time variable into consideration?

Answer

Correct Answer: Static models

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65. From the above table, find the basic feasible solution using the matrix minimum method.

Answer

Correct Answer: 730

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66. From the above table, determine the best alternative to choose if a person is adopting the optimistic criterion.

Answer

Correct Answer: Do not stock pile Y and associated cost $90000

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67. From the above table, determine which alternative is the best to choose if a person is adopting the Savage criterion.

Answer

Correct Answer: Stock pile X and associated cost $10000

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68. A furniture shop has employed only one carpenter whose work varies according to the number of wooden frames he makes. The working rate of the carpenter is randomly distributed approximating a Poisson distribution with a mean rate of ten wooden frames per hour. The carpenter works for 10 hours a day and gets an order of making 5 wooden frames per hour. If the hack-saw used by the carpenter is valued at $20 per hour, determine the equipment utilization.

Answer

Correct Answer: 0.5

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69. The initial cost of a machine is $6000. Study the above given table and calculate after how many years of service should the machine be replaced.

Answer

Correct Answer: After the 5th year of service

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70. From the above table, determine the best alternative to choose if a person is adopting the maximax criterion.

Answer

Correct Answer: Alternative Y

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71. A person comes to a cyber cafe everyday. Sometimes, he has to wait for the cyber cafe to open and at other times, he arrives late. The opening time of the cafe varies from day to day. Study the above table, computed for 8 days, and calculate the average waiting time of that person.

Answer

Correct Answer: 2.2 minutes

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72. In the north-west corner method of Linear Programming, the empty or open squares are called:

Answer

Correct Answer: water squares

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73. Which of the following is required in order to apply Linear Programming effectively?

Answer

Correct Answer: Having the variables of a problem bear a linear relationship

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74. In which of the following types of decisions does there exist only one outcome for a decision?

Answer

Correct Answer: Decision under certainty

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75. A cinema hall has a single ticket counter. During the peak hours, people arrive at the rate of 50 per hour to watch the movie. The average number of people who get the tickets is 100 per hour. Calculate the probability of the ticket counter being free.

Answer

Correct Answer: 0.5

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