Mechanical Definitions |
Kaplan Turbine : It is a propeller-type water turbine
which consists adjustable blades for load change with sustainde
efficiency. |
Kata Thermometer : A type of alcohol thermometer which
measures low velocities in air circulation by heating the large
bulb of the thermometer above 100°F (38°C) and noting the time
it takes to cool from 100 to 95°F (38 to 35°C) or some other
interval above ambient temperature. The time interval is considered
as measure of the air current at that location. |
Katharometer : It is a thermal conductivity device to
determine the presence of small quantities of gases in air by
measuring the change in thermal conductivity of the air. It
is also called Thermal Conductivity Cell. |
Kauertz Engine : It is a cat-and-mouse type rotary engine
in which the pistons are vanes which are sections of a right
circular cylinder. Two pistons are attached to one rotor so
that they rotate with constant angular velocity, while the other
two pistons are controlled by a gear-and-crank mechanism, so
that angular velocity varies. |
Kellering : It is a technique of three-dimensional machining
of a contoured surface by tracer-milling the die block or punch.
A tracer controls the cutter path and follows the contours on
a die model. |
Kelly Ball Test : It is a type of test to determine the
consistency of concrete. It is made by measuring the penetration
of a metal ball into the surface of the concrete. It is considered
to be simple and faster than Slump Test. |
Kew Barometer : It is a mercury barometer which needs
no adjustment for the variation of the level of mercury in the
cistern as pressure changes occur. Instead, a uniformly contracting
scale is used to determine the effective height of the mercury
column. It has a contracted scale. |
Keyboard Perforator : It is a typewriter-like device
which is used to prepare punched paper tape for communications
or computing equipment. |
Keyseater : It is a machine which is used to mill beds
or grooves in mechanical parts which receive keys. |
Kickback : It is a backward thrust, such as a backward
starting of an internal combustion engine when it is cranked
or the reverse push of a piece of work when it is fed to a rotary
saw. |
Kickdown : The process of shifting to lower gear in an
automotive vehicle. |
Kick Over : It is a process which is applied to internal
combustion engine to start firing. |
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