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پستهای کانال
يوم الخميس ⬇️
⏪4 Jun 2026⏩
▫️SCI201
8:00 - 10:00
اكتب متطوع تصوير فقط ، اي تعليق آخر ، حظر
| 2 | أبحث عن السؤال بالسيرش وبيطلع لك مع الاجابة . | 1 123 |
| 3 | 1 - If the percent-idle time of an M/M/1 system is 0.11, then the utilization factor (ρ) is:
D - None of the given answers ✅
2 - In the linear regression equation 2ŷ = 2 + 3x, the values of slope and y-intercept are respectively given by:
A - 1.5, 1 ✅
3 - Extra inventory maintained to protect against uncertainties in demand or lead time is called:
C - Safety stock ✅
4 - After establishing probability distributions in a Monte Carlo simulation, the next step is to:
A - Construct cumulative probability distributions ✅
5 - The selling price of a laptop bag is $40 per unit, while the variable cost is $25 per unit. If the fixed cost is $3,750, calculate the breakeven point in units.
B - 250 ✅
6 - Construct the material structure tree for item A. If one unit of item A requires 2 units of item B and 3 units of item C, and each unit of item B requires 4 units of item D, how many units of item D are needed to produce 5 units of item A?
A - 40 ✅
7 - What is the best decision according to Laplace's criteria?
C - Alternative 3 ✅
8 - In a project schedule, activity A has an Earliest Start time (ES) of 4 weeks, Earliest Finish time (EF) of 6 weeks; Latest Start time (LS) of 8 weeks, and Latest Finish time (LF) of 10 weeks. What is the slack time for activity A?
B - 4 weeks ✅
9 - Find the Critical activities.
A - B, D, E, G ✅
10 - The monthly sales of a product for the last four months were 210, 240, 180, and 270 units. Find the forecast for next month using a three-month moving average.
B - 230 ✅ | 1 122 |
| 4 | 11 - A company sells a product with an annual demand of 900 units. Carrying cost is estimated to be 0.50 SAR per unit per year, and the ordering cost is 9 SAR per order. The economic order quantity (EOQ) is:
A - 180 ✅
12 - Consider the following transportation problem with the given supplies and demands. Using the Northwest Corner Method, determine how many units should be allocated from Source 2 to Destination B.
D - 150 Units ✅
13 - Which of the following is not a simulation technique?
B - Work Breakdown Structure ✅
14 - Which of the following statements concerning ABC analysis is false?
D - Class A items are always the largest in quantity compared to other classes. ✅
15 - If the optimistic, most likely, and pessimistic time estimates of an activity are 14 days, 17 days, and 20 days, respectively, what is the variance of this activity?
A - 1 ✅
16 - The queuing model M/M/m differs from M/M/1 mainly because:
D - There are multiple servers ✅
17 - A company wants to achieve maximum audience exposure with a limited advertising budget. Which quantitative technique is most suitable for solving this media selection problem?
C - Linear Programming ✅
18 - Consider the following linear programming problem: Maximize 3x+4y, Subject to X+2Y ≤ 100, 3X+Y ≤ 120, X, Y ≥ 0. Which of the following points (x, y) does not lie in the feasible region?
D - (40, 30) ✅
19 - If a random number 10 is selected from a random number table, then the corresponding simulated demand is:
A - 1 ✅
20 - A company estimates that the probability of a stock-out during the lead time is 0.08. What is the service level of the inventory system?
B - 92% ✅ | 720 |
| 5 | 30 - In inventory management, lead time is the time between placing an order and receiving the inventory.
A. True ✅
29 - A company produces a product at a constant rate of 60 units per day. If the optimal production quantity is 1,800 units, then the production run lasts for 25 days.
B. False ❌
28 - Every transportation problem must have only three destinations.
B. False ❌
27 - In the weighted moving average method of forecasting, all previous periods are assigned equal weights.
B. False ❌
26 - In decision analysis, the Expected Value of Perfect Information (EVPI) represents the maximum amount a decision-maker should be willing to pay for additional information before making any decision.
A. True ✅
25 - In PERT/CPM, only the variances of activities on the non-critical path contribute to the overall project variance.
B. False ❌
24 - In queuing theory, balking refers to a situation in which customers choose not to join a waiting line after observing that the queue is too long or that the expected waiting time is high.
A. True ✅
23 - Crashing a project activity means reducing the activity completion time by allocating extra resources.
A. True ✅
22 - The basis of the Monte Carlo simulation is experimentation on the probabilistic elements through random sampling.
A. True ✅
21 - The optimal solution of a linear programming problem always occurs outside the feasible region.
B. False ❌ | 579 |
| 6 | مافيه مقالي
اي سوال مب واضح اكتبو لي اصوره مرة ثانية | 520 |
| 7 |  بدون متن... | 516 |
| 8 |  بدون متن... | 479 |
| 9 | 30 - In inventory management, lead time is the time between placing an order and receiving the inventory.
A. True ✅
29 - A company produces a product at a constant rate of 60 units per day. If the optimal production quantity is 1,800 units, then the production run lasts for 25 days.
B. False ❌
28 - Every transportation problem must have only three destinations.
B. False ❌
27 - In the weighted moving average method of forecasting, all previous periods are assigned equal weights.
B. False ❌
26 - In decision analysis, the Expected Value of Perfect Information (EVPI) represents the maximum amount a decision-maker should be willing to pay for additional information before making any decision.
A. True ✅
25 - In PERT/CPM, only the variances of activities on the non-critical path contribute to the overall project variance.
B. False ❌
24 - In queuing theory, balking refers to a situation in which customers choose not to join a waiting line after observing that the queue is too long or that the expected waiting time is high.
A. True ✅
23 - Crashing a project activity means reducing the activity completion time by allocating extra resources.
A. True ✅
22 - The basis of the Monte Carlo simulation is experimentation on the probabilistic elements through random sampling.
A. True ✅
21 - The optimal solution of a linear programming problem always occurs outside the feasible region.
B. False ❌ | 2 |
| 10 |  بدون متن... | 441 |
| 11 |  بدون متن... | 407 |
| 12 |  بدون متن... | 375 |
| 13 |  بدون متن... | 357 |
| 14 |  بدون متن... | 362 |
| 15 |  بدون متن... | 350 |
| 16 |  بدون متن... | 335 |
| 17 |  بدون متن... | 328 |
| 18 |  بدون متن... | 321 |
| 19 | In PERT/CPM, only the variances of activities on the non-critical path contribute to the overall project variance.
B) False ❌
In decision analysis, the Expected Value of Perfect Information (EVPI) represents the maximum amount a decision-maker should be willing to pay for additional information before making any decision.
A) True ✅
In inventory management, lead time is the time between placing an order and receiving the inventory.
A) True ✅
Every transportation problem must have only three destinations.
B) False ❌
The basis of the Monte Carlo simulation is experimentation on the probabilistic elements through random sampling.
A) True ✅
The optimal solution of a linear programming problem always occurs outside the feasible region.
B) False ❌
In the weighted moving average method of forecasting, all previous periods are assigned equal weights.
B) False ❌
In queuing theory, balking refers to a situation in which customers choose not to join a waiting line after observing that the queue is too long or that the expected waiting time is high.
A) True ✅ | 330 |
| 20 |  بدون متن... | 317 |
