Deck 10: Statistical Quality Control

Question 1

Control is the formalisation of what is intended to happen.

Answer 1

False

Question 2

Flexible - the time slack in the system allows unexpected work to be loaded. This is an example of:

A) Forward scheduling
B) Backward scheduling

Answer 2

Forward scheduling

Question 3

The maximum output of an operations system in a given period is called the:

A) Master production schedule
B) Production forecast
C) Break-even point
D) Designed capacity
E) Capacity plan

Answer 3

Designed capacity

Question 4

Objectives set in both financial and operations terms is an example of long-term, medium-term or short-term planning and control?.

A) Long-term planning and control
B) Medium-term planning and control
C) Short-term planning and control

Question 5

Determining when to do things is known as:

A) Scheduling
B) Loading
C) Sequencing
D) Monitoring and control

Question 6

Determining whether activities are going to plan is known as:

A) Scheduling
B) Loading
C) Sequencing
D) Monitoring and control

Question 7

The planning horizon tends to be short in a low-volume, high-variety operation.

Question 8

Finite loading is particularly relevant for operations where the cost of limiting the load is not
prohibitive.

Question 9

Tends to focus the operation on customer due dates. This is an example of:

A) Forward scheduling
B) Backward scheduling

Question 10

Ad hoc consideration of operations objectives is an example of long-term, medium-term or short-term planning and control?

A) Long-term planning and control
B) Medium-term planning and control
C) Short-term planning and control

Question 11

Scheduling the operation:

A) Decides on the start and finish times for each task
B) Determines the priority of tasks to be performed
C) Assumes that capacity must be infinite
D) Determines the volume that an operations system can cope with
E) Sequences work through a series of operations

Question 12

Objectives set in largely financial terms is an example of long-term, medium-term or short-term planning and control?

A) Long-term planning and control
B) Medium-term planning and control
C) Short-term planning and control

Question 13

Determining in what order to do things is known as:

A) Scheduling
B) Loading
C) Sequencing
D) Monitoring and control

Question 14

Aggregated demand forecasts are a key element of short-term planning and control.

Question 15

A drive-in tyre replacement operation is a good example of planning and control considerations
being driven by dependent demand.

Question 16

Less exposed to risk in case of schedule change by the customer is an advantage of:

A) Forward scheduling
B) Backward scheduling

Question 17

Determining how much to do is known as:

A) Scheduling
B) Loading
C) Sequencing
D) Monitoring and control

Question 18

A pull system is where material is moved only when the next stage wants it.

Question 19

High labour utilisation - workers always start work to keep busy. This is an example of:

A) Forward scheduling
B) Backward scheduling

Question 20

Which of the following operations is more likely to be a pull rather than push operation?

A) A food manufacturer
B) A farmer
C) A company that builds computers to order
D) A brewery

Question 21

In planning and control, planning is NOT:

A) A formalisation of what is intended to happen
B) A guarantee that an event will happen
C) A plan based on expectations
D) A statement of intention

Question 22

Independent demand is relatively predictable, because factors of demand are known.

Question 23

The nature of decisions taken to plan and control an operation will depend on:

A) The nature of demand and costs of supply
B) The nature of supply and its flexibility
C) The nature of demand and its elasticity
D) The nature of demand and supply for the operation

Question 24

In the long term, the emphasis of planning and control is on:

A) Planning
B) Planning and control
C) Control

Question 25

Sequencing the operation:

A) Decides on the start and finish times for each task
B) Determines the volume that an operations system can cope with
C) Determines the order in which work is to be processed
D) Determines the priority of tasks to be performed
E) Assumes that capacity must be infinite

Question 26

When an operation is sufficiently confident of the nature of demand, if not its volume and time, it will tend to:

A) Make to stock
B) Make to order
C) Resource to order

Question 27

When considering control tasks, loading is associated with work volume, sequencing is associated with work priorities, and scheduling is associated with:

A) Work order scheduled receipts
B) The order in which work is processed
C) Work start and finish times
D) The work rate from an operation or process
E) Work done relative to customer order delivery dates

Question 28

Loading the operation:

A) Decides on the start and finish times for each task
B) Determines the order in which work is to be processed
C) Determines the priority of tasks to be performed
D) Assumes that capacity must be infinite
E) Determines the volume that an operations system can cope with

Question 29

Which of the following is NOT true of long-term planning and control?

A) Determines resources in aggregated form.
B) Uses disaggregated forecasts and demand forecasts.
C) Objectives are set in largely financial terms.
D) None of the options above is true.

Question 30

Which of the following is true of short-term planning and control?

A) Makes interventions to resources to correct deviation from plans.
B) Usually partially disaggregated demand forecasts.
C) Objectives are set largely in financial terms.
D) Determines resources and contingencies.

Question 31

Which of the following is NOT true of medium planning and control?

A) Makes interventions to resources to correct deviations from plans.
B) Ad hoc consideration of operations objectives.
C) Uses aggregated demand forecasts.
D) None of the options above is true.

Question 32

In planning and control, control is NOT:

A) A process of coping with changes to supplier and/or demand
B) A statement of intention
C) An adjustment to planned events
D) An adjustment that allows the operation to achieve the objectives that a plan has set

Question 33

Most of the demand for tyre store in a car plant is dependent demand.

Question 34

Planning is a formalisation of what is intended to happen at some time in the future.

Question 35

Planning and control activities are concerned with providing long-term resources which are
capable of satisfying customers' demands

Question 36

Planning and control activities are concerned with operating resources on a day-to-day basis and
ensuring availability of materials and other variable resources in order to supply goods and
services which will fulfil customers' demands.

Question 37

To reconcile volume and time, four overlapping activities are performed:

A) Sequencing, scheduling, monitoring, evaluation
B) Loading, scheduling, sequencing, monitoring
C) Loading, monitoring, evaluation, scheduling
D) Evaluation, loading, sequencing, scheduling

Question 38

In the short term, the emphasis of planning and control is on:

A) Control
B) Planning and control
C) Planning

Question 39

Planning is the process of coping with changes in supply and demand.

Question 40

Different aspects of planning and control can be viewed as representing the reconciliation of
supply with demand.

Question 41

Which of the following is seen as a disadvantage of self-rostering?

A) Less teamwork
B) Creates a 'them and 'us' culture
C) Lack of control
D) Reduced motivation

Question 42

When the dominant resource of the operation is its staff, then the schedule of work time
determines the demand for the operation.

Question 43

Which of the following is NOT seen as an advantage of self-rostering?

A) Nurtures teamwork
B) Staff ownership of problems
C) Balanced rosters
D) Improves morale

Question 44

When the cost of limiting the load is prohibitive, infinite loading is commonly applied.

Question 45

The most common method of scheduling is by use of a Gantt Chart.

Question 46

The approach to loading which does not limit accepting work, but instead tries to cope with it, is called:

A) Classic loading
B) Infinite loading
C) Finite loading
D) Determined loading

Question 47

LIFO sequencing is more equitable that FIFO sequencing.

Question 48

The allocation of work to a work centre up to a set limit is called:

A) Sequencing
B) Finite loading
C) Physical constraint
D) Infinite loading