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2. Idle (engine) - Wikipedia

   en.wikipedia.org/wiki/Idle_(engine)

   Idle speed, sometimes simply called "idle", is the rotational speed an engine runs at when the engine is idling, that is when the engine is uncoupled from the drivetrain and the throttle pedal is not depressed. In combustion engines, idle speed is generally measured in revolutions per minute (rpm) of the crankshaft.

3. North American Fire Hose Coupler Incompatibilities - Wikipedia

   en.wikipedia.org/wiki/North_American_Fire_Hose...

   1-inch hose with 1-8 NH NFPA threads (NFPA 1963 requirement; a.k.a. "Chemical Hose Thread" and "Booster Hose Thread" [7]; the chemical hose thread term likely originates from its use on chemical fire engines, an early firefighting device used from 1872 until the 1930s that used a combination of bicarbonate of soda and sulfuric acid to force ...

4. Power steering - Wikipedia

   en.wikipedia.org/wiki/Power_steering

   Power steering is a system for reducing a driver's effort to turn a steering wheel of a motor vehicle, by using a power source to assist steering. [1]Hydraulic or electric actuators add controlled energy to the steering mechanism, so the driver can provide less effort to turn the steered wheels when driving at typical speeds, and considerably reduce the physical effort necessary to turn the ...

5. Hard suction hose - Wikipedia

   en.wikipedia.org/wiki/Hard_suction_hose

   5-inch (13 cm) flex suction hose with Storz fittings, mounted on an engine. Flexible suction hose (Flex suction or suction hose), not to be confused with hard suction hose in U.S., is a specific type of fire hose used in drafting operations, when a fire engine uses a vacuum to draw water from a portable water tank, pool, or other static water source.

6. Active steering - Wikipedia

   en.wikipedia.org/wiki/Active_steering

   The BMW active steering system consists principally of a power-assisted rack and pinion steering gear, a double planetary gear system in the steering column, and an electric actuating motor. [ 1 ] The double planetary gear system incorporates an input sun gear connected to the driver’s steering wheel, two planetary gears, an output sun gear ...

7. Mattydale lay - Wikipedia

   en.wikipedia.org/wiki/Mattydale_lay

   A third person handing the hose to the two individuals on the ends facilitates the process. After the desired length of hose is connected, and sometimes the air removed from the interior with a fire hose vacuum, it is laid in a compartment or hose bed in a predetermined manner depending on the type of lay being built. Almost always the nozzle ...

8. Car suspension - Wikipedia

   en.wikipedia.org/wiki/Car_suspension

   The British steel springs were not well-suited for use on America's rough roads of the time, so the Abbot-Downing Company of Concord, New Hampshire re-introduced leather strap suspension, which gave a swinging motion instead of the jolting up-and-down of spring suspension.

9. Cross-drive steering transmission - Wikipedia

   en.wikipedia.org/wiki/Cross-drive_steering...

   This reduced the power to be dissipated by braking and increased the power available to drive the fast track. Implementing this was difficult for most transmissions, as it required a varying gear ratio between the sides. Most gearboxes simply offered a single ratio, through fixed gears and clutches, which restricted steering to a single radius. [i]