MTH601 Midterm Solved Papers by Rana

Mth601_Operations · Research · Midterm · Solved Papers....!! · By_Rana_Abubakar_Khan

1. _______________ employs a different modeling and solution logic than linear programming

(a). Transportation Model (b). Inventory Control Model

(c). Dynamic Programming

2. To identify and maintain the proper precedence relationship between activities those are not connected by event, we introduce

(a). Parallel Activity

(b). Dummy Activity

(c). Sequential Activity

3. EST and EFT of activities are calculated in

(a). Forward pass

(b). Backward pass

4. Critical path is obtained by connecting the jobs having

(a). Activities having same EST and LST (b). Activities having same EFT and LFT (c). Activities having zero slack

(d). All of the above

5. The Variance Vt of expected time is calculated as
6. In LP problems Additivity means that

(a). The effect of two different programs of production is the same as that of a joint program (b). The doubling (or tripling) the product will exactly double (or triple) the profit and the required resource (c). Both (a)& (b)

7. Two of the first steps of OR process encompass the actual use of OR techniques. These steps are

(a). Model Construction and Model Solution

(b). Observation and Implementation (c). Definition of the problem and Model Solution (d). Model Solution and Implementation of results

8. Let FS = Free Slack, TS = Total Slack, INDS = Independent Slack, then which relation is true

(a). TS ≤ FS (b). INDS ≤ FS (c). FS ≤ TS

(d). Both (b) & (c)

9. Best possible time estimate that a given activity would take under normal conditions which often exist, is called

(a). Most Likely time estimate

(b). Pessimistic time estimate (c). Smallest time estimate

10. Standard Deviation S.D is

(a). One sixth of the difference between pessimistic time estimates and optimistic time estimates (b). One sixth of the difference between pessimistic time estimates and most likely time estimates (c). One sixth of the difference between optimistic time estimates and most likely time estimates (d). One sixth of the difference between most likely time estimates and optimistic time estimates

1. Forward pass
2. Backward pass
3. Path does not effected

Correct answer: Forward pass

Q2. _________________ may be less than most likely time estimate (1 marks)

1. Pessimistic time estimate
2. Smallest time estimate
3. Optimistic Time estimate

Correct answer: Pessimistic time estimate

Q3. The dummy activities consume (1 marks)

1. No time, no resources
2. No time but some resources
3. Some resources in minimum time
4. None of these

Correct answer: No time, no resources

Q4. If an activity consumes no time and no resources then this activity is called __________. (1 marks)

1. dummy activity
2. sequential activity

Correct answer: dummy activity