Yamaha Motor University questions verified with correct answers
2026/2027
How many flywheel revolutions are there in the complete four stroke process?- correct
answer >>>2
Which valve can handle higher heat?- correct answer >>>exhaust valve
-remove carbon residue
-guide lubrication oil into the piston through the oil discharge holes on the surface of the
oil ring and piston during its downward travel
-remove oil from the wall surface during the intake process
-provide a seal between the piston and cylinder during the four strokes
-guide lubrication oil into the piston through the oil discharge holes on the surface of the
oil ring and piston during its upward travel- correct answer >>>-compression ring
-oil ring
-oil ring
-compression ring
-oil ring
-four stroke engines
-two stroke engines- correct answer >>>-can operate stable at low rpm, idling RPM can
be set at a lower value
-cannot operate stable at low rpm, idling RPM must be set to a higher value
What type of gauge obtains signals from the ECM and can be linked together?- correct
answer >>>LAN Gauges
This tachometer indicated the speed of the boat- correct answer >>>false
-tach
-fuel management
-speed- correct answer >>>-engine RPM, trim angle, oil level, warning lamps, hour
meter
-displayes fuel consumption, fuel economy, fuel contamination warning
-displays speed, trip time, fuel, battery voltage
drag and drop each term to its corresponding location- correct answer >>>lift (up)
negative pressure (under lift)
positive pressure (other side)
what are common electrical systems on a four stroke- correct answer >>>-charging
-starting
-signal
-ignition
, what happens in the video- correct answer >>>a short circuit was caused
-voltage
-current
-resistance
-AC
-DC
-a series circuit- correct answer >>>-is electrical pressure
-is the flow of electricity
-is the opposition to current flow
-is the type of voltage that reverses polarity
-is the type of voltage that causes current to flow in only one direction
-has a single path for current
Place the terms in the correct location- correct answer
>>>I(current)=v(voltage)/R(resistance)
-The Powerhead
-Outboards
-Steering
-Inboard motors- correct answer >>>-is where the motor is located
-combine the motor and drive into a single packaged unit
-can be controlled by remote or direct methods
-are common on large vessels
Oil seal is designed to keep ___ in and prevent _____ or dust from coming in from
outside- correct answer >>>oil/water
The bracket is used to:- correct answer >>>-attaches the motor to the boat
-it allows for trim and tilt movements
-it allows the motors to pivot which allows steering
-acts as a shock absorber if the lower unit hits an underwater object while the boat is at
speed
One side of the Circlip has a sharp-edged (90 degrees) corner and other is angled (45
degrees). Install a circle with the ___________ side opposite the direction of force/-
correct answer >>>Sharp-edged/ -><-
-a touque wrench is used
-a dial gauge is used
-a vernier caliper is used
-a reamer is used
-a pressure gauge can be used-
-a micrometer can be used- correct answer >>>-for tightening a bolt or nut to the
specified torque
-to measure the runout or deflection of a shaft or plane
2026/2027
How many flywheel revolutions are there in the complete four stroke process?- correct
answer >>>2
Which valve can handle higher heat?- correct answer >>>exhaust valve
-remove carbon residue
-guide lubrication oil into the piston through the oil discharge holes on the surface of the
oil ring and piston during its downward travel
-remove oil from the wall surface during the intake process
-provide a seal between the piston and cylinder during the four strokes
-guide lubrication oil into the piston through the oil discharge holes on the surface of the
oil ring and piston during its upward travel- correct answer >>>-compression ring
-oil ring
-oil ring
-compression ring
-oil ring
-four stroke engines
-two stroke engines- correct answer >>>-can operate stable at low rpm, idling RPM can
be set at a lower value
-cannot operate stable at low rpm, idling RPM must be set to a higher value
What type of gauge obtains signals from the ECM and can be linked together?- correct
answer >>>LAN Gauges
This tachometer indicated the speed of the boat- correct answer >>>false
-tach
-fuel management
-speed- correct answer >>>-engine RPM, trim angle, oil level, warning lamps, hour
meter
-displayes fuel consumption, fuel economy, fuel contamination warning
-displays speed, trip time, fuel, battery voltage
drag and drop each term to its corresponding location- correct answer >>>lift (up)
negative pressure (under lift)
positive pressure (other side)
what are common electrical systems on a four stroke- correct answer >>>-charging
-starting
-signal
-ignition
, what happens in the video- correct answer >>>a short circuit was caused
-voltage
-current
-resistance
-AC
-DC
-a series circuit- correct answer >>>-is electrical pressure
-is the flow of electricity
-is the opposition to current flow
-is the type of voltage that reverses polarity
-is the type of voltage that causes current to flow in only one direction
-has a single path for current
Place the terms in the correct location- correct answer
>>>I(current)=v(voltage)/R(resistance)
-The Powerhead
-Outboards
-Steering
-Inboard motors- correct answer >>>-is where the motor is located
-combine the motor and drive into a single packaged unit
-can be controlled by remote or direct methods
-are common on large vessels
Oil seal is designed to keep ___ in and prevent _____ or dust from coming in from
outside- correct answer >>>oil/water
The bracket is used to:- correct answer >>>-attaches the motor to the boat
-it allows for trim and tilt movements
-it allows the motors to pivot which allows steering
-acts as a shock absorber if the lower unit hits an underwater object while the boat is at
speed
One side of the Circlip has a sharp-edged (90 degrees) corner and other is angled (45
degrees). Install a circle with the ___________ side opposite the direction of force/-
correct answer >>>Sharp-edged/ -><-
-a touque wrench is used
-a dial gauge is used
-a vernier caliper is used
-a reamer is used
-a pressure gauge can be used-
-a micrometer can be used- correct answer >>>-for tightening a bolt or nut to the
specified torque
-to measure the runout or deflection of a shaft or plane
