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TEN100: Technology Engineering Test #1Study Guide

Patent:A document issued by the government that gives an

inventor the sole right to make, distribute, or sell a articularinvention !or a certain number o! years" A atent rotects ork

How Putt-Putt Boat Works

1"$ %andle heats u ater&"$ 'ater (ashes to steam)"$ 'ater is ushed out stras*"$ 'ater e+iting ushes the boat !orard"$ The e+iting ater creates a vacuum and ulls !resh ater in-"$ The cycle reeats because directional

A utt.utt boat moves in a !orard direction because the e+itingater has greater directional !orce than the incoming ater hichenters !rom all directions"

Combustible Fuels

Gasoline:re/ned etroleum used as !uel !or internal combustionengines" Gasoline engines rely on a spark plugto ignite the !uelused to drive the istons"

Diesel:an internal combustion engine in hich heat roduced bythe compression of air (no spark plugin the cylinder is usedto ignite the !uel"

Bio-!iesel: a vegetable or animal !at.based diesel alternativethat cuts emissions o! carbon mono+ide and smog.roducing

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articulate matter almost in hal!, and reduces hydrocarbonemissions by beteen and 0 ercent" 2erhas mostsigni/cantly, using 3100 reduces the emissions o! carbon dio+ide4the main greenhouse gas causing global arming4by more

than ercent"

"nternal Combustion #ngine

"nternal Combustion:an engine that generates motive oer by theburning o! gasoline, oil, or other !uel ith air inside the engine, the hot gasesroduced being used to drive a iston or do other ork as they e+and"

1"$ "ntake $troke:2iston 5irection 56'N, 7ntake 8alve 62EN, E+haust8alve %96SE5

&"$ Compression $troke:2iston 5irection 2, 7ntake 8alve %96SE5,E+haust 8alve %96SE5

)"$ "gnition%Power $troke:2iston 5irection 56'N, 7ntake 8alve %96SE5,E+haust 8alve %96SE5

*"$ #&'aust $troke:2iston 5irection 2, 7ntake 8alve %96SE5, E+haust8alve 62EN

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The enginecycle begins ith the intake stroke as the iston is ulledtoards the cranksha!t ;to the le!t in the /gure$" The intake valve is oen,and !uel and air are dran ast the valve and into the combustionchamberand cylinder !rom the intake mani!old located on to o! the combustionchamber"

Geot'ermals Pneumatics ) Hy!raulics

Geot'ermal energy: thermal energy generated and stored inthe Earth" Thermal energy is the energy that determines thetemerature o! matter"

Pneumatic $ystem

. A neumatic system uses air or another inert gas !or oeration"

. 'hen the volume o! a cylinder /lled ith air is comressed, theincrease in ressure e

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Bernoulli,s Principle:states that ressure decreases hen air

moves !aster" Air moves !aster over the to o! a ing, hichresults in an area o! loer ressure" >eanhile, the bottom o! theing e+eriences higher ressure"

C'emical ) uclear .eactions

C'emical reaction:a rocess that involves rearrangement o!the molecular or ionic structure o! a substance, as oosed to achange in hysical !orm or a nuclear reaction"

uclear reaction:a change in the identity or characteristics o!an atomic nucleus that results hen it is bombarded ith anenergetic article, as in /ssion, !usion, or radioactive decay"

. One of the main differences between nuclear reaction and chemical reaction is

related to how the reaction takes place in the atom. While nuclear reaction takes

place in the atoms nucleus, the electrons in the atom are responsible for Chemical

reactions.