MMET 401 LAB PRACTICAL EXAM QUESTIONS WITH CORRECT ANSWERS LATEST UPDATE
2025/2026
Hydrometer - Answers a device used to measure the specific gravity
Falling Ball Viscometer - Answers device used to measure viscosity
Bourdon Tube Pressure Gauge - Answers used to measure the gauge pressure of liquids and
gases
Vented Reservoir - Answers
Pressurized Reservoir - Answers ensures a constant fluid flow to the pump. Adaptable to high-
altitude flight
Vented Reservoir, Line Above Fluid Level - Answers
Vented Reservoir, Line Below Fluid Level - Answers
Air Receiver (Tank) - Answers
Fixed Displacement Pump - Answers A type of hydraulic pump that generates a constant flow
rate.
Variable Displacement Pump - Answers A type of hydraulic pump that allows the user to
increase or decrease the fluid flow rate.
Air Compressor - Answers machine that provides air under pressure
Single Acting Cylinder - Answers A cylinder that acts under pressure in one direction only and
returns automatically when the pressure is released.
Double Acting Cylinder - Answers A cylinder that can act under pressure in both directions
(extend and retract) to move a load.
Check Valve - Answers A valve that allows flow in one direction but prevents flow in the
opposite direction.
Spring Loaded Check Valve - Answers uses a spring to keep the valve shut. when fluid pressure
on inlet side is greater than the spring pressure the valve opens.
3types : ball, poppet, sleeve
Shuttle Valve - Answers A type of fluid valve that is used when the control of an actuator must
be shared between two independently operated directional control Valves.
2/2 DCV - Answers
2025/2026
Hydrometer - Answers a device used to measure the specific gravity
Falling Ball Viscometer - Answers device used to measure viscosity
Bourdon Tube Pressure Gauge - Answers used to measure the gauge pressure of liquids and
gases
Vented Reservoir - Answers
Pressurized Reservoir - Answers ensures a constant fluid flow to the pump. Adaptable to high-
altitude flight
Vented Reservoir, Line Above Fluid Level - Answers
Vented Reservoir, Line Below Fluid Level - Answers
Air Receiver (Tank) - Answers
Fixed Displacement Pump - Answers A type of hydraulic pump that generates a constant flow
rate.
Variable Displacement Pump - Answers A type of hydraulic pump that allows the user to
increase or decrease the fluid flow rate.
Air Compressor - Answers machine that provides air under pressure
Single Acting Cylinder - Answers A cylinder that acts under pressure in one direction only and
returns automatically when the pressure is released.
Double Acting Cylinder - Answers A cylinder that can act under pressure in both directions
(extend and retract) to move a load.
Check Valve - Answers A valve that allows flow in one direction but prevents flow in the
opposite direction.
Spring Loaded Check Valve - Answers uses a spring to keep the valve shut. when fluid pressure
on inlet side is greater than the spring pressure the valve opens.
3types : ball, poppet, sleeve
Shuttle Valve - Answers A type of fluid valve that is used when the control of an actuator must
be shared between two independently operated directional control Valves.
2/2 DCV - Answers
