NAVY AVIATION MACHINIST PRACTICE EXAM QUESTIONS
AND ANSWERS 2025/2026 ALL RATED A+
✔✔Rate of water thru big and small openings - ✔✔Faster rate thru small openings,
slower thru big
✔✔Amount of water thru big and small openings - ✔✔Same
✔✔Place an object evenly on two scales? - ✔✔Each reads half the weight
✔✔4 steps of a four stroke engine - ✔✔4-Stroke Engine
Intake, Compression, Combustion, Exhaust
✔✔Mechanical advantage of a wheel and axel? - ✔✔Wheel and axle question, such as
bucket being raised from well.
Mechanical Advantage = Radius of Axle to handle / radius of drum (how much you are
multiplying the force by applying more torque to the axel via the radius
Make sure you're using the RADIUS, not the diameter
✔✔Pressure formula - ✔✔force/area
✔✔fluid pressure - ✔✔Force exerted by fluid per unit area.
✔✔atmospheric pressure - ✔✔the pressure caused by the weight of the atmosphere
✔✔Moment - ✔✔Force x distance
✔✔Energy - ✔✔Difference between kinetic and potential
✔✔What is the flow of a direct current - ✔✔Continuously in the same direction
✔✔What is the flow of an alternating current - ✔✔Periodically reverses direction
✔✔Ammeter - ✔✔Measures current flow in a circuit
✔✔Voltometer - ✔✔Measures voltage
✔✔Multimeter - ✔✔Measures "multiple" - both current flow and voltage
✔✔Units for charge - ✔✔Coulomb, C
✔✔Units for current flow - ✔✔Amperes, A
, ✔✔Newtons First Law - ✔✔An object at rest stays at rest and an object in motion stays
in motion with the same speed and in the same direction unless acted upon by an
unbalanced force.
✔✔Newtons Second Law - ✔✔Force = mass x acceleration
✔✔Newtons Third Law - ✔✔Every action has an equal and opposite reaction
✔✔Convection - ✔✔The transfer of thermal energy by the circulation or movement of a
liquid or gas
✔✔Conduction - ✔✔The direct transfer of heat from one substance to another
substance that it is touching.
✔✔Effect of salt on specific gravity of water and its freezing point - ✔✔Placing salt into
water increases the specific gravity of the solution and lowers its freezing point.
✔✔Heating a closed container of boiling water ________ the pressure of the water
vapor (steam) inside the container and _______ the temperature of the water. -
✔✔Increases, increases
✔✔Effect of temperature difference on rate of transfer of heat - ✔✔Greater rate
✔✔Compressing air in a closed space will ________ the volume and ______ the
temperature. - ✔✔Decrease, increase
✔✔2 springs holding the box attached as 1 longer spring
They are each holding ________ the weight of the box - ✔✔The full weight
✔✔2 springs holding the box at different ends of the box
Each spring holds _____ the weight of the box - ✔✔1/2
✔✔A square metal plate is hanging by 4 wires (one on each corner). One breaks, and
it's hanging by only 3 wires now. Does each wire now carry the same amount of weight,
or do the 2 diagonally across from each other hold an equal amount that is more than
the lone wolf in the other corner? - ✔✔The lone wolf does no support. The 2 diagonals
carry it alone.
✔✔Do aircraft take off on a treadmill? - ✔✔Aircraft will take off on a treadmill, regardless
of treadmill setting.
✔✔Port - ✔✔left
AND ANSWERS 2025/2026 ALL RATED A+
✔✔Rate of water thru big and small openings - ✔✔Faster rate thru small openings,
slower thru big
✔✔Amount of water thru big and small openings - ✔✔Same
✔✔Place an object evenly on two scales? - ✔✔Each reads half the weight
✔✔4 steps of a four stroke engine - ✔✔4-Stroke Engine
Intake, Compression, Combustion, Exhaust
✔✔Mechanical advantage of a wheel and axel? - ✔✔Wheel and axle question, such as
bucket being raised from well.
Mechanical Advantage = Radius of Axle to handle / radius of drum (how much you are
multiplying the force by applying more torque to the axel via the radius
Make sure you're using the RADIUS, not the diameter
✔✔Pressure formula - ✔✔force/area
✔✔fluid pressure - ✔✔Force exerted by fluid per unit area.
✔✔atmospheric pressure - ✔✔the pressure caused by the weight of the atmosphere
✔✔Moment - ✔✔Force x distance
✔✔Energy - ✔✔Difference between kinetic and potential
✔✔What is the flow of a direct current - ✔✔Continuously in the same direction
✔✔What is the flow of an alternating current - ✔✔Periodically reverses direction
✔✔Ammeter - ✔✔Measures current flow in a circuit
✔✔Voltometer - ✔✔Measures voltage
✔✔Multimeter - ✔✔Measures "multiple" - both current flow and voltage
✔✔Units for charge - ✔✔Coulomb, C
✔✔Units for current flow - ✔✔Amperes, A
, ✔✔Newtons First Law - ✔✔An object at rest stays at rest and an object in motion stays
in motion with the same speed and in the same direction unless acted upon by an
unbalanced force.
✔✔Newtons Second Law - ✔✔Force = mass x acceleration
✔✔Newtons Third Law - ✔✔Every action has an equal and opposite reaction
✔✔Convection - ✔✔The transfer of thermal energy by the circulation or movement of a
liquid or gas
✔✔Conduction - ✔✔The direct transfer of heat from one substance to another
substance that it is touching.
✔✔Effect of salt on specific gravity of water and its freezing point - ✔✔Placing salt into
water increases the specific gravity of the solution and lowers its freezing point.
✔✔Heating a closed container of boiling water ________ the pressure of the water
vapor (steam) inside the container and _______ the temperature of the water. -
✔✔Increases, increases
✔✔Effect of temperature difference on rate of transfer of heat - ✔✔Greater rate
✔✔Compressing air in a closed space will ________ the volume and ______ the
temperature. - ✔✔Decrease, increase
✔✔2 springs holding the box attached as 1 longer spring
They are each holding ________ the weight of the box - ✔✔The full weight
✔✔2 springs holding the box at different ends of the box
Each spring holds _____ the weight of the box - ✔✔1/2
✔✔A square metal plate is hanging by 4 wires (one on each corner). One breaks, and
it's hanging by only 3 wires now. Does each wire now carry the same amount of weight,
or do the 2 diagonally across from each other hold an equal amount that is more than
the lone wolf in the other corner? - ✔✔The lone wolf does no support. The 2 diagonals
carry it alone.
✔✔Do aircraft take off on a treadmill? - ✔✔Aircraft will take off on a treadmill, regardless
of treadmill setting.
✔✔Port - ✔✔left
