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Industrial Electrical Symbols Flashcards

9170252347	Disconnect	0
9170252348	Circuit Breaker/Interrupter	1
9170252349	Circuit Breaker with Thermal Overload	2
9170293964	Circuit Breaker with Magnetic Overload	3
9170297951	Circuit Breaker with Thermal and Magnetic Overload	4

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Journeyman Electrician Flashcards

Abbreviations & Electrical Terms

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10384139050	A	• Amp(s), Amperage	0
10384139051	AC	• Air Conditioner • Alternating Current • Armored Cable a.k.a. "BX Cable"	1
10384139052	AFCI	• Arc-Fault Circuit Interrupter • is a circuit breaker that breaks the circuit when it detects an electric arc in the circuit it protects to prevent electrical fires.	2
10384139053	AHJ	• Authority Having Jurisdiction • Basically, the boss on duty that approves the work being done.	3
10384139054	Al	Aluminium	4
10384139055	AMI	In Accordance with Manufacturer's Instructions.	5
10384139056	AWG	American Wire Gauge	6
10384139057	CATV	Cable Television	7
10384139058	CO	Carbon Monoxide	8
10384139059	Cu	Copper	9
10384139060	DC	Direct Current	10
10384139061	EGC	Equipment Grounding Conductor	11
10384139062	EMT	Electrical Metallic Tubing	12
10384139063	ENT	Electrical Nonmetallic Tubing a.k.a. "Smurf Tubing"	13
10384139064	EV	Electrical Vehicle	14
10384139065	EXC	Exception(s)	15
10384139066	FMC	Flexible Metal Conduit a.k.a. "Greenfield Conduit"	16
10384139067	ft	Foot, feet (measurement)	17
10384139068	GEC	Grounding Electrode Conductor	18
10384139069	GES	Grounding Electrode System	19
10384139070	GFCI	Ground-Fault Circuit Interrupter	20
10384139071	GFPE	Ground-Fault Protection of Equipment	21
10384139072	hp	Horsepower (33,000 lb.ft./minute) or (550 lb.ft./sec)	22
10384139073	IMC	Intermediate Metal Conduit	23
10384139074	in	Inch(s) (measurement)	24
10384139075	IRC	International Residential Code	25
10384139076	kcmil	1000 Circular mil units (Conductor Size)	26
10384139077	L & L	Listed and Labeled, Listing and Labeling	27
10384139078	lb	Pound(s)	28
10384139079	LFMC	Liuid-Tight Flexible Metal Conduit a.k.a. "Seal-tight Conduit"	29
10384139080	LFNMC	Liquid-Tight Flexible Nonmetallic Conduit	30
10384139081	manu	Manufacturer	31
10384139082	MC	Metal-Clad Cable	32
10384139083	max	Maximum	33
10384139084	min	Minimum	34
10384139085	NEC	National Electical Code	35
10384139086	NFPA	National Fire Protection Association	36
10384139087	NM	Nonmetallic-Sheathed Cable	37
10384139088	OCPD	Overcurrent Protection Device a.k.a "Breaker or Fuse"	38
10384139089	PV	Photovoltaic	39
10384139090	PVC	Rigid Polyvinyl Chloride Conduit	40
10384139091	req	Require, Requiring, Requirement	41
10384139092	req'd	Required	42
10384139093	req's	Requires	43
10384139094	RMC	Rigid Metal Conduit	44
10384139095	SCCR	Short Circuit Current Requirement	45
10384139096	SE	Service Entrance Cable	46
10384139097	SFD	Single-Family Dwelling	47
10384139098	sq	Square	48
10384139099	temp	Temperature	49
10384139100	UF	Underground Feeder Cable	50
10384139101	USE	Underground Service Entrance Cable	51
10384139102	V	Volt(s) V = I×R V = P÷I V = sqrt(P×R)	52
10384139103	VA	Volt-Amperes (Apparent Power)	53
10384139104	w/	With....	54
10384139105	w/o	With out.....	55
10384139106	W	Watt(s) Units of True (useful) Power	56
10384139107	Accessible, as applied to wiring methods.	Not permanently concealed or enclosed by building construction.	57
10384139108	accessible, as applied to equipment.	capable of being removed or exposed withoit damaging the building finish or structure. A piecs of equipment can be considered accessible even if tools must be used or other equipment must be removed to gain access to it.	58
10384139109	Accessible, readily.	Capable of being reached quickly for operation or inspection without the necessity of using tools to remove covers, resorting to ladders, or removing other obstacles.	59
10384139110	Alternating Current (AC)	Current that flows in one direction and then in the other in regular cycles, referred to as frequency or Hertz.	60
10384139111	Apparent Power		61

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AP Biology: Prefixes and Suffixes Flashcards

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12280516453	bio-	life	0
12280516454	-ic	of or pertaining to	1
12280516455	-meter; -metry	measure	2
12280516456	micro-	small	3
12280516457	multi-	many	4
12280516458	-ology; -logy	study of; science of	5
12280516459	-stasis	stationary condition	6
12280516460	-ous	having the nature of	7
12280516461	-thesis	an argument	8
12280516462	-scope; -scopy	instrument to observe something	9
12280516463	psuedo-	false	10
12280516464	-genesis	beginning; origin	11
12280516465	paleo-	old	12
12280516466	-phyte; pytho-	a plant; to grown in a certain way or place.	13
12280516467	arthe-, artho-	joint	14
12280516468	bi-, di-	two	15
12280516469	cephalo-, ceph-	head	16
12280516470	cyst-, -cytis	pouch	17
12280516471	derm-, -dermis	skin, covering	18
12280516472	epi-	on, on the outside, over	19
12280516473	ex-, exo-	outside of	20
12280516474	gastro-	stomach	21
12280516475	morph-	form	22
12280516476	osteo-, ossi-	bone	23
12280516477	zoo-, zoa-	animal	24
12280516478	pod-, ped-	foot	25
12280516479	a-, an-	not, without	26
12280516480	auto-	self, same, automatic	27
12280516481	eco-	environment, habit	28
12280516482	hyper-	above, over	29
12280516483	hypo-	below, under	30
12280516484	-troph, -trophic	having to do with nutrition, eat	31
12280516485	-therm	heat	32
12280516486	carnis-, carn-	meat	33
12280516487	geo-	earth-	34
12280516488	omni-	all	35
12280516489	syn-, synm-	together with, by means of	36
12280516490	hetero-	other, another, different	37
12280516491	homo-, homeo-	same	38
12280516492	uni-, mono-	one	39
12280516493	bacterio-	bacteria	40
12280516494	-cide	kill	41
12280516495	herb-	plant	42
12280516496	-sphere-	round	43
12280516497	-vore	to eat	44
12280516498	macro-	large	45
12280516499	-ose	carbohydrate	46
12280516500	sacchar-	sugar	47
12280516501	poly-	many	48
12280516502	aqua-	water	49
12280516503	-ase	enzyme	50
12280516504	-phile	affinity (to like something)	51
12280516505	-phobe, phobia	fear, dislike	52
12280516506	cyte-, cyto-	cell	53
12280516507	endo-	inner, inside	54
12280516508	eu-	true	55
12280516509	extra-	outside	56
12280516510	karyo-	nucleus	57
12280516511	neur-, neuro-	nerve	58
12280516512	-phage, phago-	eat	59
12280516513	pro-, proto-	first, primitive, before	60
12280516514	semi-	partial	61
12280516515	-phyll	leaf or pigment	62
12280516516	-plasm, -plast	thing formed	63
12280516517	chromo, chroma	color	64
12280516518	aero-	needing oxygen or air	65
12280516519	chemo-	of, with or by chemicals	66
12280516520	chloro-	green	67
12280516521	hydro-	water	68
12280516522	iso-	equal	69
12280516523	-lysis, -lyse	to break	70
12280516524	meso-	In the middle	71
12280516525	-osis	state of disease, action	72
12280516526	osmo-	impulse, thrust	73
12280516527	gen, geno, gen	production or relating to gene	74
12280516528	-phase	stage	75
12280516529	trans-	across, beyond, through to other side	76
12280516530	inter-	between, among	77
12280516531	meta-	between	78
12280516532	telo-, -telos	end	79
12280516533	oo-, ovi-	egg	80
12280516534	sperm	male sex cell	81
12280516535	anti-	against	82
12280516536	-emia, hemo-	blood	83
12280516537	path-, patho-	disease	84
12280516538	-itis	inflammation	85
12280516539	intra-	inside, within	86
12280516540	inter-	between	87

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Electrician Flashcards

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14744814490	series circuit	An electric circuit with a single path	0
14744814491	Parallel circuit	Two or more paths that electricity can flow through, and there is a load connected to each path.	1
14744941907	Volt meter	a device used to measure voltage	2
14744941908	Ohmeter	Measures resistance	3
14744941909	Ammeter	A device used to measure current in a circuit	4
14744941910	Ampere	a unit of electric current equal to a flow of one coulomb per second.	5
14744941911	Atom	Smallest particle of an element	6
14744941912	Battery	A DC voltage source consisting of two or more cells that convert chemical energy into electrical energy	7
14744941913	circuit	the complete path that an electric current travels along	8
14744941914	conductor	A material that allows heat and electricity to pass through it.	9
14744941915	Coulomb	SI unit of electric charge	10
14756226290	current	the flow of electrons	11
14756226291	Electron	a negatively charged subatomic particle	12
14756226292	Insulator	A material that does not allow heat or electrons to move through it easily.	13
14756226293	Joule	A unit of work equal to one newton-meter	14
14756226294	kilo	thousand	15
14756226295	Matter	Anything that has mass and takes up space	16
14756226296	mega	one million	17
14756226297	Neutrons	Electrically neutral partical that has the same mass as a proton and is found in an atom's nucleus.	18
14756226298	ohm meter	the tool used to measure resistance	19
14756389982	Power	the rate at which work is done	20
14756389983	Protons	Positively charged particles	21
14756389984	Resistance	An electrical property that opposes the flow of current through a circuit	22
14756389985	Resistor	An electrical device that resists the flow of electrical current	23
14756389986	schematic	relating to an outline or diagram; using a system of symbols	24
14756389987	Solenoid	An electromagnetic coil used to control a mechanical device such as a valve.	25
14756389988	Transformer	A device that increases or decreases the voltage of alternating current	26
14756389989	valence shell	outermost electron shell	27
14756389990	Volt	unit for measuring voltage	28
14756389991	Voltage	Driving force which pushes current (Electrical Power)	29
14756389992	Voltage drop	a reduction of electrical energy by an electrical device as current passes through it	30
14756389993	Watt	SI unit of power	31
14757260405	Diac	A three layer diode designed for use as a trigger in AC power control circuits	32
14757260406	field-effect transistor	A transistor that controls the flow of current through it with an electric field	33
14757260407	forward bias	Exist when voltage is applied to a solid state device in such a way to allow the device to conduct easily	34
14757260408	Junction Field Effect Transistor (JFET)	A field effect transistor formed by combining layers of semiconductor material	35
14757260409	N-type material	Material created by doping a region of a crystal with atoms from an element that has more electrons in its outer shell than the crystal	36
14757260410	P-type material	A material created when a crystal is doped with atoms from an element that has fewer electrons in its outer shell than the natural crystal	37
14757320195	Rectifier	A device or circuit commonly used to change ac voltage into dc voltage or as a solid state switch	38
14757320196	reverse bias	A condition that exist when voltage is applied to a device in such a way that it causes the device to act as an insulator	39
14757320197	semiconductor	Neither a good insulator or good conductor	40
14757320198	Silicone controlled rectifier	A device used to convert ac voltage to dc voltage	41
14757320199	Triac	A three terminal device used to control the average current flow to a load.	42

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Electrician Terminology Flashcards

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10786008668	joule	a unit of electrical energy. Work done by the force of one neutron when its point of application moves through the distance of one meter in the direction of the force.	0
10786020924	electrolyte	a solution that conducts electricity	1
10786031602	orthogonal	meeting at right angles - A specification for a wireless LAN that operates in the 2.4GHz frequency range and provides a data transmission rate, over short distances, of 54Mbps using orthogonal frequency division multiplexing (OFDM) technology.	2
10786095964	voltage	the rate at which energy is drawn from a source. measure of electric potential energy	3
10821110460	transformer	an electrical device changing one voltage to another. Most battery systems are designed for a certain minimum number of days or operation before recharging is needed should sufficie Autotransformer - A transformer in which at least two windings have a common section.	4
10821248132	energize	cause to be alert and active	5
10821256628	insulator	a material with little electrical or thermal conductivity	6
10821263855	conductor	the person who leads a musical group ACSR/TW - ACSR conductor made using Trapezoidal Wire construction. A material that easily carries electrical current.	7
10821271705	input	signal going into an electronic system Antenna Gain - An antenna's transmission power, provided as a ratio of its output (send) signal strength to its input (receive) signal strength, normally expressed in dBi.	8
10821287683	insulation	reduction of the transmission of sound, heat, or electricity	9
10888538348	ohms	the unit that electrical resistance is measured in	10
10888564865	Ohm's Law	States that the direct current flowing in an electric circuit is directly proportional to the voltage applied to the circuit.	11
10888661729	Potentiometer	A variable resistor. A resistor with three terminals, the third being an adjustable center terminal.	12
11304043348	Amperes	the unit for measuring electrical current.	13
11304070466	Capacitor	An electrical device used to store electrical charge.	14
11304089304	Diode	A device that permits current to flow through it in only one direction.	15

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Electrical Wiring Diagram Symbols Flashcards

Electrical Wiring Diagram Symbols commonly found in HVAC wiring diagrams

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9354124448	High Voltage, Factory Wired	0
9354124449	Low Voltage, Factory Wired	1
9354124450	High Voltage, Field Wired	2
9354124451	Low Voltage, Field Wired	3
9354124452	High Pressure Switch Normally Closed Opens on increase (rise)/Closes on decrease (drop) (vacuum & pressure activated)	4
9354124453	Low Pressure Switch Normally Open Closes on increase (rise)/Opens on decrease (drop) (vacuum & pressure activated)	5
9354124454	Cooling Thermostat Normally Open Closes on increase (rise)/Opens on decrease (drop) (temperature activated)	6
9354124455	Heating Thermostat Normally Closed Opens on increase (rise)/Closes on decrease (drop) (temperature activated)	7
9354124456	High Liquid Level Switch Normally Closed Opens on increase (rise)/Closes on decrease (drop) (liquid level activated)	8
9354124457	Low Liquid Level Switch Normally Open Closes on increase (rise)/Opens on decrease (drop) (Liquid Level activated)	9
9354124458	Flow Switch (positive) Normally Open Closes on flow or movement (air, water, liquid flow or movement)	10
9354124459	Flow Switch (negative) Normally Closed Opens on flow or movement (air, water, liquid flow or movement)	11
9354124460	Normally Open Contacts	12
9354124461	Normally Closed Contacts	13
9354124462	Disconnect Switch	14
9354124474	Single Pole Single Throw Switch	15
9354124475	Single Pole Double Throw Switch	16
9354124476	Single Pole Double Throw 3 Position Switch	17
9354124478	Push Button Normally Open Single Circuit Momentary, Spring Return	18
9354124479	Push Button Normally Closed Single Circuit Momentary, Spring Return	19
9354124480	Momentary Push Button Double Circuit Momentary, Spring Return	20
9354124486	Fixed Resistor Glow Coil Strip Heater	21
9354124491	Transformer (variants)	22
9354124492	Capacitor	23
9354124493	Relay Coil	24
9354124494	Fuse	25
9354124495	Fusible Link	26
9354124496	Ground Connection	27
9354124497	Light	28
9354124500	Thermal Overload	29
9354124501	Bi-Metal Switch	30
9354124504	Crank Case Heater	31
9354124505	Meter * denotes type	32
9354124511	Electrically Operated Switch * Indicates magnetic coil,motor, or thermal element	33
9354124522	Motor Single Phase 2 Lead	34
9354124523	Motor Single Phase 3 Lead	35
9354124526	Bi-Metallic Thermal Overload	36
9354124531	Horn or Siren	37
9354124532	Buzzer or Bell	38

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Electrical Symbols Flashcards

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12379898288	Battery	0
12379898289	Bulb	1
12379898290	Resistor	2
12379898291	Fuse	3
12379898292	Ground - Chassis earth	4
12379898293	Circuit Breaker	5
12379898294	Variable Resistor	6
12379898295	Capacitor	7
12379898296	Motor	8
12379898297	Male Terminal	9
12379898298	Female Terminal	10
12379898299	Coil Winding	11
12379898300	Normally Open Relay	12
12379898301	Switch	13
12379898302	Diode	14
12379898303	Zener Diode	15
12379898304	Light Emitting Diode	16
12379898305	Transistor	17
12379898306	Thermistor	18
12379898307	Voltmeter	19
12379898308	Ammeter	20
12379898309	Ohmmeter	21
12379898310	Wires Crossed and Connected	22
12379898311	Wires Crossed and Not Connected	23

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Electrical Terms Flashcards

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13337343820	Alternating Current	an electric current that reverses its direction many times a second at regular intervals, typically used in power supplies.	0
13337343821	Direct Current	an electric current flowing in one direction only.	1
13337343822	Volts	the SI unit of electromotive force, the difference of potential that would drive one ampere of current against one ohm resistance.	2
13337343823	Amps	full of nervous energy	3
13337343824	Watts	the SI unit of power, equivalent to one joule per second, corresponding to the power in an electric circuit in which the potential difference is one volt and the current one ampere	4
13337343825	Circuit	a roughly circular line, route, or movement that starts and finishes at the same place	5
13337343826	Service Panel	a component of an electricity supply system that divides an electrical power feed into subsidiary circuits, while providing a protective fuse or circuit breaker for each circuit in a common enclosure	6
13337343827	Ohms	the SI unit of electrical resistance, expressing the resistance in a circuit transmitting a current of one ampere when subjected to a potential difference of one volt.	7
13337343828	Resistance	the ability not to be affected by something, especially adversely	8
13337343829	Conductor	a material or device that conducts or transmits heat, electricity, or sound, especially when regarded in terms of its capacity to do this	9
13337343830	Insulator	a substance or device that does not readily conduct electricity	10
13337343831	Ohms Law	a law relating the voltage difference between two points, the electric current flowing between them, and the resistance of the path of the current	11
13337343832	Multimeter	an instrument designed to measure electric current, voltage, and usually resistance, typically over several ranges of value.	12
13337343841	Hot Wire	depending on the expansion of a wire when heated or on a change in the electrical resistance of a wire when heated or cooled. "a hot-wire detector"	13
13337343842	Neutral Wire	Neutral is a circuit conductor that normally carries current, and is connected to ground (earth) at the main electrical panel. In the electrical trade, the conductor of a 2-wire circuit connected to the supply neutral point and earth ground is referred to as the "neutral".	14
13337343843	Ground Wire	The Ground Wire. The term "ground" refers to a connection to the earth, which acts as a reservoir of charge. A ground wire provides a conducting path to the earth which is independent of the normal current-carrying path in an electrical appliance.	15
13337343844	Schematic	A diagram, in particular of an electric or electronic circuit.	16
13338646665	Fuse	A safety device that breaks the circuit when it is overloaded by melting a fusible link	17