Mine System Engineering — Winter 2022

Define: (i) Dummy activity (ii) Critical activity (iii) Slake time

Differentiate between CPM and PERT.

Compare system, sub-system and system environment in detail.

Write the limitations of PERT.

Discuss graphical method of solving Linear Programming Problems.

Discuss the Creative aspects of planning and design.

Discuss the factors influencing creativity, techniques and alternate ideas.

Write a short note on Primal and Dual Problem.

How will you define transportation model. Explain its application in mineral industry.

Draw a network diagram corresponding to the following information. Obtain early (E) & late (L) Start & finish time and total float. Activity 1-2 1-3 2-6 3-4 3-5 4-6 5-6 5-7 6-7 Duration 4 6 8 7 4 6 5 19 (weeks)

Discuss the application of linear programming.

Write short notes on Assignment problem and its application for mineral industry.

Discuss Monte-Carlo simulation system.

How to calculate average and expected time in PERT.

What does a critical path actually signify? In what ways does it differ from any other path?

Explain the rules to be followed while constructing a network.

Define the following terms in PERT:

Optimistic Time Estimate

Pessimistic Time Estimate

Most Likely Time Estimate

What is a linear programming model? Also write its assumptions.

Write the scope and limitations of simulation.

What is the need of dynamic programing for mineral industry? Write some methods for solving dynamic programming problem.

Define inventory. Explain the basic characteristics of an inventory system with advantages.

What do you understand by minimal spanning tree network model?

Write the assumption of EOQ model.

Write short notes on following:- i. Necessity for inventory control ii. Functions performed by inventory