Millwright-Preventive and Predictive
Maintenance Exam Questions and Answers
with Verified Solutions | Latest Updated 2026
Preventive maintenance is the periodic inspection and maintenance
of plant
assets and equipment to uncover
conditions that
may to equipment failure or shortened life
This measures the amount of d. gravimetric level analysis
contaminants per litre of fluid.
a. ferromagnetic analysis
b. total base number
c. infrared tests
d. gravimetric level analysis
These tests indicate how much of b. total base number
the
oil additives have been depleted
a. ferromagnetic analysis
b. total base number
c. spectographic level analysis
d. gravimetric level analysis
,This technique is advanced and c. spectographic level analysis
becomming more common in
industry. It determines
concentrations of contaminants
over
a period and accurately predicts
the
lubricant failure.
a. ferromagnetic analysis
b. total base number
c. spectographic level analysis
d. gravimetric level analysis
These tests reveal the amount of b. infrared
general oil degradation.
a. ferromagnetic analysis
b. infrared
c. spectographic level analysis
d. gravimetric level analysis
What is a method of determining Particle Analysis
the Automatic particle counters APCs or laser
condition of lubrication or hydraulic particle
oil? sizing APS can determine particle size and
distribution
What is one of the most expensive Using X-Rays
and dangerous methods of NDT? Harmful gamma and xrays
What two kinds of Ultra-Sonic Immersion and Contact
inspection are used in Millwright Scale, paint and corrosion removal may be
trade? required before inpsection
, Static unbalance is sometimes a. force or kinematic unbalance
called This is caused when shafts weight is
(this is when the weighted evenly
centerline distributed along its length but unevenly
and shaft axis are parallel but distributed side to side
misaligned (shifted) along their
length
a. force or kinematic unbalance
b. couple unbalance
c. misalignment
d. shaft offset
This type of unbalance has extra b. couple unbalance
equal weights on opposite sides of
the shaft. (6 oclock and 12 oclock)
This causes the weighted
centerline
of the rotating part to intersect the
shaft axis.
a. force or kinematic unbalance
b. couple unbalance
c. quasi static
d. shaft offset
detailed analysis All good PM programs begin with a
________ of past
equipment failures, including their costs,
causes,
remedial actions taken, and changing
demands on
the equipment.
critical, important, and Three catagories of equipment failures:
nonthreatening
Maintenance Exam Questions and Answers
with Verified Solutions | Latest Updated 2026
Preventive maintenance is the periodic inspection and maintenance
of plant
assets and equipment to uncover
conditions that
may to equipment failure or shortened life
This measures the amount of d. gravimetric level analysis
contaminants per litre of fluid.
a. ferromagnetic analysis
b. total base number
c. infrared tests
d. gravimetric level analysis
These tests indicate how much of b. total base number
the
oil additives have been depleted
a. ferromagnetic analysis
b. total base number
c. spectographic level analysis
d. gravimetric level analysis
,This technique is advanced and c. spectographic level analysis
becomming more common in
industry. It determines
concentrations of contaminants
over
a period and accurately predicts
the
lubricant failure.
a. ferromagnetic analysis
b. total base number
c. spectographic level analysis
d. gravimetric level analysis
These tests reveal the amount of b. infrared
general oil degradation.
a. ferromagnetic analysis
b. infrared
c. spectographic level analysis
d. gravimetric level analysis
What is a method of determining Particle Analysis
the Automatic particle counters APCs or laser
condition of lubrication or hydraulic particle
oil? sizing APS can determine particle size and
distribution
What is one of the most expensive Using X-Rays
and dangerous methods of NDT? Harmful gamma and xrays
What two kinds of Ultra-Sonic Immersion and Contact
inspection are used in Millwright Scale, paint and corrosion removal may be
trade? required before inpsection
, Static unbalance is sometimes a. force or kinematic unbalance
called This is caused when shafts weight is
(this is when the weighted evenly
centerline distributed along its length but unevenly
and shaft axis are parallel but distributed side to side
misaligned (shifted) along their
length
a. force or kinematic unbalance
b. couple unbalance
c. misalignment
d. shaft offset
This type of unbalance has extra b. couple unbalance
equal weights on opposite sides of
the shaft. (6 oclock and 12 oclock)
This causes the weighted
centerline
of the rotating part to intersect the
shaft axis.
a. force or kinematic unbalance
b. couple unbalance
c. quasi static
d. shaft offset
detailed analysis All good PM programs begin with a
________ of past
equipment failures, including their costs,
causes,
remedial actions taken, and changing
demands on
the equipment.
critical, important, and Three catagories of equipment failures:
nonthreatening
