Test: CPM, PERT & Inventory Control - 1 - Mechanical Engineering MCQ

There are two products P and Q with the following characteristics 

The economic order quantity (EOQ) of products P and Q will be in the ratio

A dummy activity is used in PERT network to describe  

In inventory planning, extra inventory is unnecessarily carried to the end of the planning period when, using one of the following lot size decision policies: 

In PERT, the distribution of activity times is assumed to be: 

Market demand for springs is 8,00,000 per annum. A company purchases these springs in lots and sells them. The cost of making a purchase order is Rs.1,200. The cost of storage of springs is Rs.120 per stored piece per annum. The economic order quantity is: 

The expected time (t_e) of a PERT activity in terms of optimistic time (t_o), pessimistic time (t_p) and most likely time (t₁) is given by:  

An item can be purchased for Rs 100. The ordering cost is Rs. 200 and the inventory carrying cost is 10% of the item cost annum. If the annual demand is 4000 units, then economic order quantity (in units) is: 

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

The expected completion time of the project is: 

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

The standard deviation of the critical path of the project is: 

If the demand for an item is doubled and the ordering cost halved, the economic order quantity  

Consider the following PERT network:

The optimistic time, most likely time and pessimistic time of all the activities are given in the table below: 

The critical path duration of the network (in days) is:

Consider the following PERT network:

The optimistic time, most likely time and pessimistic time of all the activities are given in the table below: 

The standard deviation of the critical path is:

Annual demand for window frames is 10000. Each frame costs Rs. 200 and ordering cost is Rs. 300 per order. Inventory holding cost is Rs. 40 per frame per year. The supplier is willing to offer 2% discount if the order quantity is 1000 or more, and 4% if order quantity is 2000 or more. If the total cost is to be minimized, the retailer should

For the network below, the objective is to find the length of the shortest path from node P to node G. Let dij be the length of directed arc from node i to node j. Let sj be the l ength of the shortest path from P to node j. Which of the following equations can be used to find sG?

A company has an annual demand of 1000 units, ordering cost of Rs. 100/ order and carrying cost of Rs. 100/unit-year. If the stock-out costs are estimated to be nearly Rs. 400 each time the company runs out-of-stock, then safety stock justified by the carrying cost will be: 

A Project consists of activities A to M shown in the net in the following figure with the duration of the activities marked in days 

The project can be completed:

The maximum level of inventory of an item is 100 and it is 100 and it is achieved with infinite replenishment rate. The inventory becomes zero over one and half month due to consumption at a uniform rate. This cycle continues throughout the year. Ordering cost is Rs. 100 per order and inventory carrying cost is Rs. 10 per item per month. Annual cost (in Rs.) of the plan, neglecting material cost, is: