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Test your basic knowledge |
Electrical Components
Start Test
Study First
Subject
:
engineering
Instructions:
Answer 50 questions in 15 minutes.
If you are not ready to take this test, you can
study here
.
Match each statement with the correct term.
Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.
This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. The amount of time it takes for a device to react to an input signal.
Forward resistance
Field cell
Direct Current
Response Time
2. A three terminal semiconductor device. In a 'FET' the current is from source to drain because a conducting channel is formed by a voltage field between the gate and the source.
Chatter
Field-Effect Transistor (FET)
Factory Mutual
Microamp
3. ANSI;
Make
Root Mean Square
American National Standards Institute
Magnetic Blow-out Switch
4. MA; One thousandth of an amp.
Capacitor
Maximum Power Rating
Electrolysis
Milliamp
5. The interaction of magnetism and electrical current.
Forward resistance
Thermocouple
Electrodynamic
Canadian Standards Administration
6. UL; ~LINK~
Actuator
Cycle
Institute of Electrical and Electronics Engineers
Underwriters Laboratories
7. Pressure that is less than atmospheric pressure.
American National Standards Institute
Vacuum
Y
XMTR
8. A region of space that surrounds a moving electrical charge or a magnetic pole - in which the electrical charge or magnetic pole experiences a force that is above the electrostatic ones associated with particles at rest.
Current Proportioning
Magnetic Field
Conduction
Amp
9. An electrically conductive fused salt or a solution where the charge is carried by ionic movement.
Rheostat
Millimeter
Electrolyte
VF
10. NEC: A set of regulations pertaining to electrical installation and design in the interest of the protection of life and property. The NEC is adopted by NFPA and approved by ANSI. It is the preferred standard of guidelines used by most electrical reg
Microvolt
Thermocouple
Relay
National Electrical Code
11. IEEE;
Working Standard
Ripple
Institute of Electrical and Electronics Engineers
Charge
12. An interconnected arrangement of parts for carrying high-voltage electricity.
Electroduct
Electrolyte
Proximity Switch
PSID
13. An ionized gas containing about equal numbers of positive and negative charges - which is a good conductor of electricity - and is affected by a magnetic field.
Conduit
Kilowatt
National Electrical Code
Plasma
14. The rapid on/off cycling of a relay caused by improper signal or adjustment - faulty contacts - or other malfunction.
Maximum Operating Temperature
PID
Chatter
VOM
15. The modification of a signal that causes the output to remain energized until it is released by intent.
RTD
Latching logic
Cycle
Quartz
16. 'American Wire Gauge' system used to determine wire size.
AWG
Diode
Root Mean Square
Interface
17. NFPA;
Conduction
National Fire Protection Association
Cathode
Field-Effect Transistor (FET)
18. A sensor or switch with the ability to detect it's relationship to a metal target without making physical contact.
Y
Phase
Environmental Protection Agency
Proximity Sensor
19. RMS; AC voltage that equals DC voltage that will do the same amount of work. For an AC sine wave it is 0.707 x peak voltage.
International Brotherhood of Electrical Workers
Infrared
Polarity
Root Mean Square
20. The resistance to electrical current. Resistance is measured in ohms.
Kilowatt
Cycle Time
OR Logic
Resistance
21. An anode (+) or cathode (-) conductor on a device through which an electric current passes.
Transient Protection
Electrode
Cycle
Ohmeter
22. Kva; One thousand volt amps.
Vector
Kilovolt amperes
Grounding Conductor
Quality Control
23. One millionth of an amp.
Chatter
VHF
Mil
Microamp
24. Or Hertz; The measurement of the time period of one alternating electric current. In the United States this is commonly 60 cycles per second - or 60 Hertz.
Absolute Zero
Environmental Protection Agency
Cycle
Quark
25. When there is current through a semiconductor p-n junction it is the resistance of a forward-biased junction.
Root Mean Square
Hard Wired
Forward resistance
Quark
26. One millionth of a meter.
System International
Watt-hour
Time Delay Before Availability
Micron
27. A panel meter with zero and span adjustments - commonly scaled for signals such as 1-5 volts - 4-20mA - etc.
Celsius
Process Meter
Response Time
Coulomb
28. A circuit element or components that allows signals of certain frequencies to pass and blocks signals of other frequencies.
Watt-hour
Response Time
Infrared
Filter
29. See; 'Proximity Sensor'.
Proximity Switch
Power Supply
Conductance
SCR
30. ISA;
Instrument Society of America
VF
Quap
Conduit
31. A reference point at zero potential with respect to the earth. In an electronic circuit it is the common return path for electric current. A conducting connection between the earth and an electrical circuit or electrical equipment. Also - the negativ
Leakage current
Ground
International Organization for Standardization
Quantum Electronics
32. ISO;
Amp
Anode
Mean Temperature
International Organization for Standardization
33. A solid-state switching device for semiconductors to convert AC current in one of two directions controlled by an electrode.
Flux
Ingress Protection Ratings
Impedance
Thyristor
34. The average temperature of a process.
Vector
American National Standards Institute
M
Mean Temperature
35. Symbol used for wye configuration for three phase electrical connections.
Current
Maximum Operating Temperature
Vector
Y
36. Chemical changes and energy produced by electric currents.
Electrochemistry
Infrared
Transistor
Operating Temperature
37. The magnitude and time phase of a quantity - represented by a plotted line.
Vector
Grounded Conductor
National Electrical Manufacturers Association
Electromagnetic field
38. A full path of electrical current from a voltage source that passes completely from one terminal of the voltage source to another.
Quartz
Farad
Circuit
International Electrotechnical Commission
39. Silicone Controlled Rectifier.
Relay
Flux
SCR
Quality Control
40. Mm; One thousandth of a meter.
Millimeter
Plasma
Volt
Infrared
41. A Solid State relay is a switching device that completes or interrupts a circuit electrically and has no moving parts. A Mechanical relay is an electromechanical device that closes contacts to complete a circuit or opens contacts to interrupt a circu
Plasma
Pulse
Actuator
Relay
42. The opposition to electrical flow.
Impedance
Cycle Time
Electrolysis
Phase
43. Normally Open.
Resistance
N.O.
Thyristor
BTU
44. The element inside a vacuum tube - incandescent lamp or other similar device.
Velocity
Circuit
Filament
Quality Control
45. A form of energy produced by the flow of particles of matter and consists of commonly attractive positively (protons [+]) and negatively (electrons [-]) charged atomic particles. A stream of electrons - or an electric current.
RFI
Electricity
Infrared
Thermocouple
46. The energy delivered by a circuit or device. The electrical signal produced by the input to the transducer.
Millivolt
Output
Zener Diode
Forward Voltage
47. The increase of the power level - current or voltage of a signal. In an amplifier it is the ratio of the output to the input signal levels.
X ray
Flux
Amplifier
Gain
48. An electrical circuit that is not 'made'. Contacts - switches or similar devices are open and preventing the floe of current.
Millimeter
International Brotherhood of Electrical Workers
UHF
Open Circuit
49. The adjustment of a display that results are zero on the display corresponding to a non-zero signal.
Pulse
Load
Zero Adjustment
Magnetic Field
50. NEMA;
Filter
Ground
National Electrical Manufacturers Association
CMV