Industrial Engineering And Production Management MCQ Questions & Answers | Mechanical Engineering

The difference between the time available to do the job and the time required to do the job is known as Float

ABC analysis is a type of inventory categorization method in which inventory is divided into three categories, A, B and C in descending value.
Inventory management and optimization in general is critical for business to help keep their costs under control.
In A-B-C analysis, C class of items are generally large in number.

A man-machine chart graphically represents the relationship between the manual work performed by one or more operators and one or more machines involved in a manufacturing process.

The important file in making a PERT is
1. An event can't be accomplished until activities leading to it are completed
2. No activity from any event can be started from preceding event till it is completed
3. Length of arrow has nothing to do with time

Work is done in small amounts at each of the work stations on the line.
To use the product layout, the total work to be performed must be dividable into small tasks that can be assigned to each of the work stations.
Because the work stations each do small amounts of work, the stations utilize specific techniques and equipment tailored to the individual job they are assigned. This can lead to a higher rate of production.

Dummy activities often have a zero completion time and are used to represent precedence relationships that cannot be easily represented using the actual activities involved in the project.
By convention dummies are always shown as dotted arcs in network diagrams.

An activity of the project is graphically represented by An arrow on the network diagram.

Guidelines for constructing network diagrams:
- Each activity is represented by only one arrow
- An arrow can represent only one activity
- If two or more activities are identified with the same start & end events. Dummy activity/activities need to be introduced in the network
- Before an activity can be started all preceding activities must be completed
- The flow of diagram is from left to right
- The arrows are not to the scale
- Arrows should be straight
- Unless absolutely unavoidable, arrows should not be crossed

Following statement is correct about the network diagram
- The events are represented graphically by circles or nodes at the beginning and the end of activity by arrows.
- The tail end of the arrow represents the start of an activity.
- The head of the arrow represents the end of an activity.

Valve analysis is particularly of interest when Production is on large scale