Industrial Engi...

Which one is valid for product layout?

Which of the following method is used to check to optimality test of a transportation problem?

A company buys lubricants at the rate of Rs. 40 per piece. The annual requirement is 1800. If the ordering cost is Rs. 20 and carrying cost is 20 % of unit cost, then optimum order quantity per order is _______

The belt snapping for conveyors in an open cast mine occurs at rate of 2 per shift. There is only one hot plate available for vulcanizing & it can vulcanize on an average 5 belts snap per shift. What is average time spent in the system?

Jobs having process times (in hours) as 1, 2, 3, 4 and 5 are scheduled in a job shop by following shortest processing time rule. What is the average in process inventory?

What is the time between orders (in days) for the following data obtained from a firm?

Annual demand = 120000 units, Cost/order = Rs. 100, Cost/unit = Rs. 25

If Poisson arrivals are 3 per minute; the probability that exactly five arrivals are there in the next one minute is______

A company makes batteries for tractors. The demands of four months are as follows:

Find the forecasted demand for April month using exponential smoothing method with smoothing constant of 0.4 & consider. Forecast for the January month 76 units.

The selling price for an item is Rs. 10 and cost price is Rs. 6. On unsold items a rebate of Rs. 2 is given. Then the service level for the item is___%

Max z = 5x₁ + 3x₂ subject to constraints:

3x₁ + 5x₂ ≤ 15

5x₁ + 2x₂ ≤ 10

x₁ ; x₂ ≥ 0

The dual of the LPP is

Todays is day 23 on Mechanical testing laboratory’s testing schedule. Three jobs are on order as indicated here: -

According to critical ratio (CR) rule, which job must be on highest priority for testing.

Find the difference in forecast for 5^th year using weighted moving average with weights 0.1, 0.2, 0.3 and 0.4 (higher weight assigned to recent data) and using exponential smoothening method with smoothening constant equal to 0.4.

Today is 20^th day on the production control calendar and the jobs are on order as given below:

Using critical ratio technique, the jobs are ordered.

Five architectural rendering jobs are waiting to be assigned at OM architects. Their work (processing) times & due dates are given in following table.

The jobs are sequenced according to SPT rule, then find ratio between average job completion time & total job lateness time?

A producer purchases parts from a supplier at Rs. 100 each. The ordinary cost is Rs. 18/order and the annual demand of producer is 125 parts. The supplier has a discount system which is explained below.

For 50 parts ⇒ 6 % discount

For ≥ 100 parts ⇒ 8 % discount

Patients arrive at hospital according to Poisson distribution with an average time of 9 minutes between two arrivals. The patient’s treatment is exponentially distributed with mean of 5 minutes. The probability that an arrival will have to wait for more than 10 minutes before the doctor is free will be

For a product, the actual demand & forecasted values are given for different periods:

Find the mean square error (MSE) of the forecasted data?