2 Sep 2014

Smu mba advanced production planning and control sample paper set three


Unit 08-4 Mark 
1. State whether the following statements are True or False:
1. Dynamic Slack per Remaining Operation computes value as the amount of dynamic slack remaining divided by the number of operations remaining
2. High opportunity and ability to utilise the opportunity, which enables a company to produce new products .
3. Backward scheduling, the scheduler will select a planned order release date and will schedule all the activities from this point forward in time.
4. The second step of analysis involves involves finding the area of opportunity in the market.
Correct
1T, 2T, 3F , 4F
Wrong
1T 2F, 3T ,4F
Feedback:
Not the right choice: Statement 1 is True, Dynamic as Slack per Remaining Operation computes value as the amount of dynamic slack remaining divided by the number of operations remaining.Statement 2 is True as High opportunity and ability to utilise the opportunity, which enables a company to produce new products. Statement 3 is false as, Forward scheduling, the scheduler will select a planned order release date and will schedule all the activities from this point forward in time.Statement 4 is false as, The first step of analysis involves finding the area of opportunity in the market.
1F, 2F, 3F ,4T
1T, 2T, 3F ,4T

2. Match the following formula sets:
Match
Correct Answer
User answer
Feedback

Total completion time
Total process days
Cumulative late in days/no of sequences
incorrect
Average/Mean Flow time
Total cumulative flow time in days/number of sequences
Total cumulative flow time in days/number of sequences
correct
Average number of jobs running at a time
Total cumulative flow time in sequence at a time/total process days required.
Total process days
incorrect
Average Lateness
Cumulative late in days/no of sequences
Total cumulative flow time in sequence at a time/total process days required.
incorrect

3. Assume that a manufacturer has the following shop orders to be dispatched in the next 6 working days. Sequence the job according to priority as established by:
a) Least slack and
b) Critical ratio
By using the Least Dynamic slack and critical ratio-priority rule.
Shop order number 17 18 19 20 21 22
Number of work days remaining 6 7 5 4 3 2
Least Slack : 21 20 2217 18 19 Critical Ratio: 2117 18 22 20 19
Wrong
Least Slack : 22 20 21 17 18 19 Critical Ratio: 21 17 18 20 22 19
Feedback:
Not the right choice: No of working days left = 6 hence slack order for shop order number 11 is 6-6=0 days. Similarly, the slack of order for shop order number 18 is -1, for 19 is (1), for 20 is (2), for 21 is (3), and for 22 is 4.
Therefore, least slack scheduling sequence is (ascending order): 11, 16,12,15,14 and 13.
b) Critical ratio = [number of days remaining for the entire work] / [number of days remaining for the individual shop order]
Therefore, critical ratio of shop order 17=6/6=1, similarly for
18=6/7=0.85,19=6/5=1.2,20=6/4=1.5,21=6/3=2,22=6/2=3
Correct
Least Slack : 22 21 20 19 18 17 Critical Ratio: 18 17 19 20 21 22
Least Slack : 21 20 22 17 18 19 Critical Ratio: 21 18 17 20 22 19
Unit 09-1 Mark 
1. A manufacturing approach that uses computers to control the entire manufacturing process is known as ______________.
Computer Aided Process Planning
Correct
Computer Integrated Manufacturing
Feedback:
Right Choice: A manufacturing approach that uses computers to control the entire manufacturing process is known as Computer Integrated Manufacturing.
Computer Numerical Control Machine Tools
Computer Aided Manufacturing

Unit 08-2 Mark 
1. State whether the following statements are True or False:
1. Low opportunity and strong position in the market, where the company avoids these markets.
2. Low opportunity, but a weak position in the market, where the company makes sure that the position in the market is sustained for profitability.
1T, 2T
Correct
1F, 2F
1T, 2F
Wrong
1F, 2T
Feedback:
Not the right choice: Statement 1 is False as Low opportunity and weak position in the market, where the company avoids these markets. Statement 2 is False as Low opportunity, but a strong position in the market, where the company makes sure that the position in the market is sustained for profitability.

2. State whether the following statements are True or False:
1. Scheduling in manufacturing aims to maximise the production time and costs.
2. Production scheduling aims to minimise the efficiency of operation and reduction of costs.
1T, 2F
Correct
1F, 2F
Wrong
1F, 2T
Feedback:
Not the right choice: Statement 1 is False as Scheduling in manufacturing aims to minimise the production time and costs. Statement 2 is False as The production scheduling aims to maximise the efficiency of operation and reduction of costs.
1T, 2T

3. The horizontal axis represents the ___________ and the vertical axis represents the__________ in Gantt charts.
Correct
Total time span of the project, Tasks that make up the project
Track of thousands of items, Revise the schedules at interval
Wrong
Duration of completion, Duration of unavoidable delay
Feedback:
Not the right choice: Gantt schedule indicates Duration of completion, Duration of unavoidable delay
Priorities of activities, Contacts based activities

4. Which of the following are the uses of a Gantt chart ?
1. Shifting of employees from allow-load work centre to high load centers.
2. Reassigning resources when the load at one work centre becomes too large.
3. Graphical representation of total workload for each work centre.
4. Information of the due date requirements of each job.
Wrong
4,3,1
Feedback:
Not the right choice: Statement 4 is limitation of a Gantt chart .Statement 3,1   are the uses of a Gantt chart.
2,4,3
Correct
3,1,2
1,2,4
2. A scheme that looks to produce a high level of output with a minimum of inventory is known as ______________.
Agile manufacturing
Correct
Lean manufacturing
Group Technology
Wrong
Just-in-Time
Feedback:
Not the right choice: Just-in-Time (JIT) is a manufacturing technique, intended to remove the manufacturing wastes by manufacturing the required right quantity and combination of parts at the right place at the right time.

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