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Mechanical Engineering - Practice Test - 59

Q1:

The indirect cost of a plant is Rs 4,00,000 per year. The direct cost is Rs 20 per product. If the average revenue per product is Rs 60, the break-even point is:

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Q2:

If the fixed cost of the assets for a given period doubles, then how much will the break-even quantity become?

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Q3:

Match List-I (Element of cost) with List-II (Nature of cost) and select the correct answer using the codes given below the lists:

 

List-I

 

List-II

A.

Interest on capital

1.

Variable

B.

Direct labour

2.

Semi-variable

C.

Water and electricity

3.

Fixed

 

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Q4:

Two alternative methods can produce a product first method has a fixed cost of Rs. 2000/- and variable cost of Rs. 20/- per piece. The second method has a fixed cost of Rs. 1500/- and a variable cost of Rs. 30/-. The break even quantity between the two alternatives is:

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Q5:

Process I requires 20 units of fixed cost and 3 units of variable cost per piece, while Process II required 50 units of fixed cost and 1 unit of variable cost per piece. For a company producing 10 piece per day.

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Q6:

Fixed investments for manufacturing a product in a particular year is Rs. 80,000/- The estimated sales for this period is 2, 00,000/-. The variable cost per unit for this product is Rs. 4/-. If each unit is sold at Rs.20/-, then the breakeven point would be:

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Q7:

A standard machine tool and an automatic machine tool are being compared for the production of a component. Following data refers to the two machines:

 

Standard Machine Tool

Automatic Machine Tool

Setup time

30 min.

2 hours

Machining time per piece

22 min.

5 min.

Machine rate

Rs.200 per hour

Rs.800 per hour

The breakeven production batch size above which the automatic machine tool will be economical to use, will be:

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Q8:

A dummy activity is used in PERT network to describe:

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Q9:

The expected time (te) of a PERT activity in terms of optimistic time (to), pessimistic time (tp) and most likely time (t1) is given by:

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Q10:

The critical path of a network is the path that:

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Q11:

In CPM, the cost slope is determined by:

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Q12:

The variance of the completion time for a project is the sum of variances of:

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Q13:

A PERT activity has an optimistic time estimate of 3 days, a pessimistic time estimate of 8 days, and a most likely time estimate of 10 days. What is the expected time of this activity?

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Q14:

Which one of the following statements is not correct?

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Q15:

For the PERT network shown in the given figure, the probability of completing the project in 27 days is:

 

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Q16:

The variance (V1) for critical path a → b = 4 time units, b → c = 16 time units, c → d = 4 time units, d → e = 1 time unit.

The standard deviation for the critical path a → e is:

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Q17:

 

Direction : Consider a PERT network for a project involving six tasks (a to f)

Task

Predecessor

Expected task time

(in days)

Variance of the task time (in days2)

a

-

30

25

b

a

40

64

c

a

60

81

d

b

25

9

e

b, c

45

36

f

d, e

20

9

The expected completion time and the standard deviation of the critical path of the project is:

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Q18:

The earliest time of the completion of the last event in the above network in weeks is:

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Q19:

In ABC analysis, A items require:

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Q20:

Economic Order Quantity is the quantity at which the cost of carrying is:

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Q21:

In the EOQ model, if the unit ordering cost is doubled, the EOQ

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Q22:

Match List-I with List-II and select the correct answer using the code given below the Lists:

 

List-I

 

List-II

A.

Procurement cost

1.

Cost of holding materials

B.

Carrying cost

2.

Cost of receiving order

C.

Economic order quantity

3.

Procurement lead time

D.

Reorder point

4.

Break-even analysis

 

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Q23:

In a machine shop, pins of 15 mm diameter are produced at a rate of 1000 per month and the same is consumed at a rate of 500 per month. The production and consumption continue simultaneously till the maximum inventory is reached. The inventory is allowed to reduce to zero due to consumption. The lot size of production is 1000. If backlog is not allowed, the maximum inventory level is:

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Q24:

In computing Wilson's economic lot size for an item, by mistake the demand rate estimate used was 40% higher than the true demand rate. Due to this error in the lot size computation, the total cost of setups plus inventory holding per unit time would rise above the true optimum by approximately:

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Q25:

Consider the following data for an item.

Annual demand: 2500 units per year, Ordering cost: Rs. 100 per order, Inventory holding rate: 25% of unit price. The optimum order quantity is:

Price quoted by a supplier

Order quantity (units)

Unit price (Rs.)

< 500

10

≥ 500

9

 

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