MACHINIST MATE COMPREHENSIVE STUDY
GUIDE 2026 FULL QUESTIONS AND
SOLUTIONS GRADED A+
◍ What is QA chapter 2?.
Answer: Quality maintenance process
◍ Which corner of a blueprint is the title block located?.
Answer: Lower right
◍ What type of strainer is prohibited for use in fuel oil systems?.
Answer: Incline or cone type
◍ RadiationHeat Method.
Answer: High speed particles of energylike microwave
◍ Hydroxyl ion symbol is what?.
Answer: OH-
◍ Speed limiting governors installed on aux turbines are designed to limit max
speed to what percentage of design speed?.
Answer: 110%
◍ What nozzle diaphragm can admit steam in an arc of a circle?.
Answer: Partial admission
◍ When using compressed air for light off, what is required pressure of
compressed air?.
Answer: 85-150 psi
◍ How often are fuel tanks emptied to reduce heavy sludge deposits?.
Answer: Every 12 months
◍ NSTM for distilling units?.
, Answer: 531
◍ Total quantity of fuel needed to conduct BS+W test.
Answer: 100 mL per centrifuge tube for total of 200 mL
◍ What term describes the thin metal strip covering the ends of the turbine
blades?.
Answer: Shrouding
◍ Prior to conducting thrust measurements on a main engine, turbine must be
at ambient temp with throttles shit for how long?.
Answer: 24 hours
◍ Velocity.
Answer: rate of change of distance with respect to time in a given
directionMPH
◍ What is the max allowable pressure drop across a fuel oil duplex strainer
when online?.
Answer: 3%
◍ What is the standard size of a firebrick?.
Answer: 2 1/2x4 1/2 x 9
◍ What nozzle diaphragm has the nozzle extending around the entire circle of
the blades?.
Answer: Full admission
◍ What piece of equipment on the anchor windlass allows you to disconnect
the wildcat shaft and permits operation of the wildcat when dropping the
anchor?.
Answer: Locking head
◍ What are the five wet lay up methods?.
Answer: Steam blanketNitrogenHot deaerated fillSodium
nitrateHydrazine/morpholine
◍ What systems use carbon rings?.
Answer: Low pressure low temp
, ◍ What is the area most likely to cavitate on a propellor is what?.
Answer: Auction side of outer and areas near leading edge
◍ At what pressure does combination exhaust relief valve lift?.
Answer: 2psi above aux exhaust line pressure
◍ What is the required length of flame on flashpoint tester when conducting
testing.
Answer: 4mm or 5/32"
◍ Entries for astern pitch are preceded by what level?.
Answer: B
◍ What is QA chapter 11?.
Answer: QA forms and instructions
◍ DFT is designed to operate at what pressure and temp?.
Answer: 15 psi and 240-250 degrees
◍ The after ends of most main engine turbines are rigidly mounted because of
what?.
Answer: The turbine and reduction gear alignment
◍ What is the quickest means to determine any change in relief position of
propulsion turbine rotor caused by bearing wear?.
Answer: Depth gauge micrometer
◍ Until the cause of the unusual noise has been discovered and remedied, what
do you do?.
Answer: Investigate
◍ What is installed on a non-condensing turbone to protect turbine casing from
excessive pressure?.
Answer: Combination exhaust relief valve 2-3 psi above exhaust line
pressure
◍ Power.
Answer: Rate of doing work or rate of expending energy
GUIDE 2026 FULL QUESTIONS AND
SOLUTIONS GRADED A+
◍ What is QA chapter 2?.
Answer: Quality maintenance process
◍ Which corner of a blueprint is the title block located?.
Answer: Lower right
◍ What type of strainer is prohibited for use in fuel oil systems?.
Answer: Incline or cone type
◍ RadiationHeat Method.
Answer: High speed particles of energylike microwave
◍ Hydroxyl ion symbol is what?.
Answer: OH-
◍ Speed limiting governors installed on aux turbines are designed to limit max
speed to what percentage of design speed?.
Answer: 110%
◍ What nozzle diaphragm can admit steam in an arc of a circle?.
Answer: Partial admission
◍ When using compressed air for light off, what is required pressure of
compressed air?.
Answer: 85-150 psi
◍ How often are fuel tanks emptied to reduce heavy sludge deposits?.
Answer: Every 12 months
◍ NSTM for distilling units?.
, Answer: 531
◍ Total quantity of fuel needed to conduct BS+W test.
Answer: 100 mL per centrifuge tube for total of 200 mL
◍ What term describes the thin metal strip covering the ends of the turbine
blades?.
Answer: Shrouding
◍ Prior to conducting thrust measurements on a main engine, turbine must be
at ambient temp with throttles shit for how long?.
Answer: 24 hours
◍ Velocity.
Answer: rate of change of distance with respect to time in a given
directionMPH
◍ What is the max allowable pressure drop across a fuel oil duplex strainer
when online?.
Answer: 3%
◍ What is the standard size of a firebrick?.
Answer: 2 1/2x4 1/2 x 9
◍ What nozzle diaphragm has the nozzle extending around the entire circle of
the blades?.
Answer: Full admission
◍ What piece of equipment on the anchor windlass allows you to disconnect
the wildcat shaft and permits operation of the wildcat when dropping the
anchor?.
Answer: Locking head
◍ What are the five wet lay up methods?.
Answer: Steam blanketNitrogenHot deaerated fillSodium
nitrateHydrazine/morpholine
◍ What systems use carbon rings?.
Answer: Low pressure low temp
, ◍ What is the area most likely to cavitate on a propellor is what?.
Answer: Auction side of outer and areas near leading edge
◍ At what pressure does combination exhaust relief valve lift?.
Answer: 2psi above aux exhaust line pressure
◍ What is the required length of flame on flashpoint tester when conducting
testing.
Answer: 4mm or 5/32"
◍ Entries for astern pitch are preceded by what level?.
Answer: B
◍ What is QA chapter 11?.
Answer: QA forms and instructions
◍ DFT is designed to operate at what pressure and temp?.
Answer: 15 psi and 240-250 degrees
◍ The after ends of most main engine turbines are rigidly mounted because of
what?.
Answer: The turbine and reduction gear alignment
◍ What is the quickest means to determine any change in relief position of
propulsion turbine rotor caused by bearing wear?.
Answer: Depth gauge micrometer
◍ Until the cause of the unusual noise has been discovered and remedied, what
do you do?.
Answer: Investigate
◍ What is installed on a non-condensing turbone to protect turbine casing from
excessive pressure?.
Answer: Combination exhaust relief valve 2-3 psi above exhaust line
pressure
◍ Power.
Answer: Rate of doing work or rate of expending energy
