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Schematic Indicator diagram of pressure in a steam locomotive cylinder. The pressure in the cylinder declines after cutoff as the steam pushes the piston down its bore. Cutoff is one of the four valve events. Early cutoff is used to increase the efficiency of the engine by allowing the steam to expand for the rest of the power stroke, yielding ...
www.gmc.edu.in 31°39′04″N 74°53′03″E / 31.6511794°N 74.8842908°E / 31.6511794; 74.8842908 Government Medical College, Amritsar , formerly known as Glancy Medical College , was established in 1864 in Lahore , British
The GMC straight-6 engine was a series of gasoline-powered straight-six engines introduced in the 1939 model year by the GMC Trucks division of General Motors. Prior to the introduction of this new engine design GMC trucks had been powered by straight-six engines designed by the Buick , Pontiac and Oldsmobile divisions of GM.
A locomotive's direction of travel and cut-off are set from the cab by using a reversing lever or screw reverser actuating a rod reaching to the valve gear proper. Some larger steam engines employ a power reverse, which is a servo mechanism, usually powered by steam. This makes control of the reversing gear easier for the driver.
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The half-power point is the point at which the output power has dropped to half of its peak value; that is, at a level of approximately −3 dB. [ 1 ] [ a ] In filters , optical filters , and electronic amplifiers , [ 2 ] the half-power point is also known as half-power bandwidth and is a commonly used definition for the cutoff frequency .
[citation needed] The lack of power steering was a hindrance in off-road, close quarters, and snow-plowing duties (although most civilian and Air Force models had power steering). [citation needed] Around 44,000 M880/M890s were produced during the 1976–1977 model years and were used by the Army and Air Force until the late 1990s. [5]
Quadrasteer is the name of a four wheel steering system developed by Delphi Automotive while under the ownership of General Motors for use in automobiles. It was available as an option on GM's full-size pickup trucks and 2500 Suburbans for model years 2002 through 2005. [1] The system enables the vehicle to turn tighter. It was initially a ...