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Advanced Vocabulary for TOEFL - Engineering and Electronics

Here you will learn some English words about engineering and electronics, such as "transistor", "electrode", "voltage", etc. that are needed for the TOEFL exam.

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Advanced Words Needed for TOEFL
engineering

a field of study that deals with the building, designing, developing, etc. of structures, bridges, or machines

[noun]
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electronics

the branch of physics and electrical engineering that focuses on designing circuits that use transistors and microchips

[noun]
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transistor

a small semiconductor device, used in television and radio sets, able to amplify or rectify an electric current

[noun]
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semiconductor

a solid substance that conducts electricity or heat better than insulators, but not as well as most metals

[noun]
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dc

an electric current that flows only in one direction

[noun]
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circuit board

a thin board on which the circuits are printed

[noun]
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short circuit

a failure in a circuit caused when the electricity flows in the wrong route due to wire damage or fault in the connections of wires

[noun]
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electrode

a conductor through which electricity travels to or from an object, such as batteries

[noun]
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voltage

the electronic potential and force whose measurement unit is volts

[noun]
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transformer

an electric device that is used to increase or decrease the voltage of an alternating current

[noun]
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transmitter

a piece of electronic equipment used for sending electromagnetic waves carrying radio or television signals

[noun]
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capacitor

an electric device that is used to accumulate electric charge

[noun]
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to conduct

to allow heat or electricity be transmitted

[Verb]
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to screw

to firmly attach or tighten something using a turning metal fastener

[Verb]
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bolt

a piece of metal like a thick nail without a point that used to secure assembled parts by passing through holes and tightening with a nut

[noun]
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nut

a flat piece of metal with a hole in the middle through which a bolt is put to secure or fasten objects together

[noun]
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cog

a wheel with a set of square or triangular teeth sticking out around the edge that fits into the edge of a similar wheel, causing both wheels to turn

[noun]
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diode

an electronic device with two terminals, typically allowing the flow of current in one direction only

[noun]
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fuse

an electrical device that is used to stop or control the flow of current in a circuit in case it is too strong

[noun]
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generator

a machine that produces electricity by converting mechanical energy into electrical energy

[noun]
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crank

a device that allows movement between mechanical parts of a machine or converts backward and forward motion into circular movement

[noun]
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shaft

a metal bar in an engine that enables movement and power to be transmitted from one part to another

[noun]
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thermostat

an instrument that automatically controls the temperature of a room, machine, etc.

[noun]
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safety valve

a device that allows steam, liquid, etc. to escape a machine, if the pressure inside the machine becomes too high

[noun]
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robotics

an area of technology that is concerned with the study or use of robots

[noun]
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relay

an electronic device that uses a small electrical current to control a larger current, acting like an automatic switch

[noun]
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oscillator

a piece of equipment for generating oscillating electric currents or voltages by non-mechanical means

[noun]
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insulator

a substance that doesn't conduct heat, sound, etc.

[noun]
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solar cell

a device that converts the energy of the sun into electricity

[noun]
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rotor

the rotating part of a machine that revolves around a stationary part

[noun]
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to rewire

to provide new electrical wiring for a building or machine

[Verb]
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alternating current

an electric current that reverses direction periodically, typically used in power distribution systems due to its efficiency in long-distance transmission

[noun]
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