CMRP Practice UPDATED ACTUAL Exam
Questions and CORRECT Answers
Replacement Asset Value (RAV) - CORRECT ANSWER - defined as the cost that would be
incurred, in today's dollars, to replace the facility and equipment in its current configuration.
Overall Equipment Effectiveness (OEE) definition - CORRECT ANSWER - metric for
measuring how well a process is operating by evaluating the three major process components:
availability, performance efficiency (rate/speed) and quality. The process can be a single piece of
equipment, a manufacturing cell, a production line or a plant
Overall Equipment Effectiveness (OEE) equation - CORRECT ANSWER - Availability ×
Performance Efficiency × Quality
Availability - CORRECT ANSWER - defined as the percentage of time that the process is
actually operating (uptime) compared to when it is scheduled to operate
Performance efficiency (rate/speed) - CORRECT ANSWER - defined as the percentage of
Actual Run Rate/Cycle Time to the Best Run Rate/Cycle Time
Quality - CORRECT ANSWER - defined as the percentage of "First Pass, First Time"
Saleable Production to the Actual Production
Actual Production - CORRECT ANSWER - total quantity of production produced in the
given time period, regardless of its quality
Lagging Indicator - CORRECT ANSWER - An indicator that measures performance after the
business or process result starts to follow a particular pattern or trend
Leading Indicator - CORRECT ANSWER - An indicator that measures performance before
the business or process result starts to follow a particular pattern or trend
,Three (3) sets of measurable components that make up the maintenance and reliability process -
CORRECT ANSWER - 1. Management processes and behaviors (mission and vision, people
skills)
2. Operational execution (operations, design and maintenance)
3. Manufacturing performance (availability, quality, cost and benefits)
mean metrics - CORRECT ANSWER - metrics that describe the Reliability, Availability and
Maintainability (RAM) characteristics of a component, asset or even facility
Inherent Availability - CORRECT ANSWER - measure of the variables inherent in the design
that affect availability. In the calculation of downtime, it usually includes only active repair time.
It does not include preventive maintenance time and administrative or logistic delays, but does
include corrective maintenance downtime
Inherent Availability Formula - CORRECT ANSWER - Ai = MTBF / (MTBF + MTTR)
Where MTBF = Mean Time Between Failures
And MTTR = Mean Time to Repair (corrective maintenance only)
Achieved Availability - CORRECT ANSWER - probability that an item, when used under
design conditions in an ideal support environment, will perform satisfactorily. It includes both
active repair time and preventive maintenance time, but excludes administrative and logistic
delay times
Achieved Availability Formula - CORRECT ANSWER - Aa = MTBM / (MTBM + MDTM)
Where MTBM = Mean Time Between Maintenance
And MDTM = Mean Downtime for Maintenance
Operational Availability - CORRECT ANSWER - probability that an item, when used under
design conditions in an operational environment, will perform satisfactorily. It includes active
repair time, preventive maintenance time and administrative and logistic delays and represents
the availability that is actually experienced
, Operational Availability Formula - CORRECT ANSWER - Ao = MTBM / (MTBM + MDT)
Where MTBM = Mean Time Between Maintenance
And MDT = Mean Down Time
Equipment Availability - CORRECT ANSWER - defined by The Association for
Manufacturing Technology as the percentage of potential production time during which
equipment is operable. The term is applied to a single piece of manufacturing equipment (or
several machines acting as a unit)
Equipment Availability Formula - CORRECT ANSWER - = [Production Time / Potential
Production Time] x 100
Point Availability - CORRECT ANSWER - probability that a device, system or component
will be operational at any random point in time
Point Availability Formula - CORRECT ANSWER - At = R(t) + ∫ t R(t - u)m(u)du
Where R(t) = Probability of operating during time (t)
m(u) = The renewal density function
And u = The last repair time (0 < u < t)
Average Availability - CORRECT ANSWER - average availability over a specific time
period when an asset is available for use. It is also called mean availability
Limiting Availability - CORRECT ANSWER - the limit of the point availability function as
time approaches infinity. It is also called steady-state availability
Limiting Availability Formula - CORRECT ANSWER - A∞ = lim At
t→∞
Questions and CORRECT Answers
Replacement Asset Value (RAV) - CORRECT ANSWER - defined as the cost that would be
incurred, in today's dollars, to replace the facility and equipment in its current configuration.
Overall Equipment Effectiveness (OEE) definition - CORRECT ANSWER - metric for
measuring how well a process is operating by evaluating the three major process components:
availability, performance efficiency (rate/speed) and quality. The process can be a single piece of
equipment, a manufacturing cell, a production line or a plant
Overall Equipment Effectiveness (OEE) equation - CORRECT ANSWER - Availability ×
Performance Efficiency × Quality
Availability - CORRECT ANSWER - defined as the percentage of time that the process is
actually operating (uptime) compared to when it is scheduled to operate
Performance efficiency (rate/speed) - CORRECT ANSWER - defined as the percentage of
Actual Run Rate/Cycle Time to the Best Run Rate/Cycle Time
Quality - CORRECT ANSWER - defined as the percentage of "First Pass, First Time"
Saleable Production to the Actual Production
Actual Production - CORRECT ANSWER - total quantity of production produced in the
given time period, regardless of its quality
Lagging Indicator - CORRECT ANSWER - An indicator that measures performance after the
business or process result starts to follow a particular pattern or trend
Leading Indicator - CORRECT ANSWER - An indicator that measures performance before
the business or process result starts to follow a particular pattern or trend
,Three (3) sets of measurable components that make up the maintenance and reliability process -
CORRECT ANSWER - 1. Management processes and behaviors (mission and vision, people
skills)
2. Operational execution (operations, design and maintenance)
3. Manufacturing performance (availability, quality, cost and benefits)
mean metrics - CORRECT ANSWER - metrics that describe the Reliability, Availability and
Maintainability (RAM) characteristics of a component, asset or even facility
Inherent Availability - CORRECT ANSWER - measure of the variables inherent in the design
that affect availability. In the calculation of downtime, it usually includes only active repair time.
It does not include preventive maintenance time and administrative or logistic delays, but does
include corrective maintenance downtime
Inherent Availability Formula - CORRECT ANSWER - Ai = MTBF / (MTBF + MTTR)
Where MTBF = Mean Time Between Failures
And MTTR = Mean Time to Repair (corrective maintenance only)
Achieved Availability - CORRECT ANSWER - probability that an item, when used under
design conditions in an ideal support environment, will perform satisfactorily. It includes both
active repair time and preventive maintenance time, but excludes administrative and logistic
delay times
Achieved Availability Formula - CORRECT ANSWER - Aa = MTBM / (MTBM + MDTM)
Where MTBM = Mean Time Between Maintenance
And MDTM = Mean Downtime for Maintenance
Operational Availability - CORRECT ANSWER - probability that an item, when used under
design conditions in an operational environment, will perform satisfactorily. It includes active
repair time, preventive maintenance time and administrative and logistic delays and represents
the availability that is actually experienced
, Operational Availability Formula - CORRECT ANSWER - Ao = MTBM / (MTBM + MDT)
Where MTBM = Mean Time Between Maintenance
And MDT = Mean Down Time
Equipment Availability - CORRECT ANSWER - defined by The Association for
Manufacturing Technology as the percentage of potential production time during which
equipment is operable. The term is applied to a single piece of manufacturing equipment (or
several machines acting as a unit)
Equipment Availability Formula - CORRECT ANSWER - = [Production Time / Potential
Production Time] x 100
Point Availability - CORRECT ANSWER - probability that a device, system or component
will be operational at any random point in time
Point Availability Formula - CORRECT ANSWER - At = R(t) + ∫ t R(t - u)m(u)du
Where R(t) = Probability of operating during time (t)
m(u) = The renewal density function
And u = The last repair time (0 < u < t)
Average Availability - CORRECT ANSWER - average availability over a specific time
period when an asset is available for use. It is also called mean availability
Limiting Availability - CORRECT ANSWER - the limit of the point availability function as
time approaches infinity. It is also called steady-state availability
Limiting Availability Formula - CORRECT ANSWER - A∞ = lim At
t→∞
