Top Industrial Engineering Interview Questions Part – 3

1. What are the factors that should be considered during production scheduling ?

ans- Component design + Route sheets and time standards.

2. Slack in an activity is positive when – a situation where extra resource is present and there is no delay in the completion of the product or when a programme falls behind schedule and to complete the project in time, extra resources are needed or when the activity is critical and its delay can affect the completion ?

ans – Any of the three options are right.

3. Consider a small scale industry . Fixed cost for that company is $5000. Variable cost for each product is $20. Selling price is $30 for every piece. What is the break even production per month ?

ans – 500.

4. Why dummy activities are required ?

ans – for maintaining the required net work.

5. What is the formula for break event point ?

ans – F/(1-V/P) (F = fixed cost, V = Variable Cost and P = Selling price per piece.)

6. What is the meaning of CPM ?

ans – Critical Path Method.

7. In which case the unit cost is low ? Batch production or Jobbing production ?

ans- Batch production.

8. What are the benefits of CPM (Critical Path Method) ?

ans- better planning with detailed idea, ascertaining time schedules and a good method for communicating project plans schedules.

9. Some important functions of inventory control are –

ans – effective running of the stores, to take care of the material and check its state technically and to provide stock control system.

10. Break even analysis gives the relation between cost and product volume – Correct or Incorrect ?

ans – Correct.

11. What is String diagram ? Why String diagram is used?

ans- String diagram is a tool which reduces the unnecessary movements by optimizing the design of the work space. It is used for checking the acceptance of different layouts.

12. which type of layout is good for automobile manufacturing ?

ans – Product layout.

13. What is Representative time ?

ans – It is the average of times recorded for an operation by a work study man.

14. What is the main property of critical activity ?

ans – It has zero slack.

15. For calculating standard time sampling method is profitable in long cycle operation – Yes or No ?

ans – Yes.

16. What type of analysis is break- even analysis ? Short term or Long term ?

ans – Short term.

17. What are the benefits of a functional organisation ?

ans – better quality of work > Minimum wastage of materials > proper guidance and supervision of the workers.

18. What is micromotion study ? What is the purpose of micromotion study ?

ans – Subdivision is done in micromotion for an operation for its analysis and completion. Purposes – Doing work most efficiently > Teach people motion economy principle > collecting time motion data.

19. How work study is done ? Which stop watch or process chart ?

ans- Stop watch.

20. When Break-even analysis shows profit ?

ans – When Sales revenue is greater than total cost.

21. Do you think that PERT is an event oriented technique ? Yes or No .

ans – Yes.

22. Which chart gives simultaneous information of work progress and machine loading?

ans- Man-machine chart.

23. In value engineering what is the meaning of value ?

ans- utility of the product

24. Why work sampling is applied ?

ans- for estimating the percentage utilization of machine tools, estimating percentage time, finding time study in certain situations.

25. Production costs means –

ans- Prime cost + Factory overhead .

26. A systematic job improvement sequence consists –

ans- motion study + job enrichment + time study

27. Do you think that line balancing problem and transportation problem can be solved by Linear programming model ?

ans – Yes .

28. Which chart gives an estimation of amount of materials handling between various work stations ?

ans- travel chart.

29. which is the device used for lifting or lowering objects suspended from a hook at the end of retractable chains or cable ?

ans – Hoist.

30. What a flow diagram generally shows ?

ans – The path followed by materials and men while doing a job.

31. How to calculate The allowed time for a job ?

ans- Standard time + policy allowance .

32. How many fundamental hand motion is involved in micromotion study ?

ans- 16.

33. There are three activities in a PERT network on critical path. The mean times are 3,8 and 6. The standard deviations are 1,2 and 2 respectively. What is the probability that the project will be completed in 20 days ?

ans- 0.84

34. Scheduling determines what ?

ans- Programme needed for the operation.

35. A system of organisation was introduced by F. W. Taylor . It is known as –

ans- Functional organization.

36. What is the sequence of phases in value engineering ?

ans- 1. creative phase 2. information phase 3. investigation phase and 4. evaluation phase.

37. When valve analysis is appreciated ? In large production scale or small production scale?

ans- In large production scale.

38. What are the conditions for using conveyors for transportation ?

ans – loads should be uniform , no variation the routs and continuous movement of the material.

39. Planning and scheduling of Mass production manufacturing differs from that of job order manufacturing . True or False ?

ans – True .

40. What information does scheduling gives us ?

ans – The perfect time for starting the job and the amount of work that should be completed in a certain amount of time.

41. Which type of layout is used for manufacturing steam turbine ?

ans- fixed position layout,

42. What information does Gantt chart give us ?

ans- Information about production scheduling.

43. When materials are checked in perpetual inventory control ?

ans- when material reaches its minimum value.

44. Why merit rating is used ?

ans – To evaluate workers performance in a work.

45. Do you think that acceptance sampling is good for mass production ?

ans- Yes.

46. What is Queuing theory ?

ans – It is the theory for determining the waiting times and queue lengths by using mathematical study. It is basically the study of waiting lines .

47. What is the standard time for a job ?

ans – delay contingency allowance plus the total work content time.

48. What is the full form of PERT ?

ans – Programme Evaluation and Review Technique

50. When bonus is paid to a worker in wage incentive system named Emerson’s efficiency plan ?

ans – when his or hers output efficiency exceeds 67%.