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Electrical Components
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Study First
Subject
:
engineering
Instructions:
Answer 50 questions in 15 minutes.
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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. A solid-state switching device for semiconductors to convert AC current in one of two directions controlled by an electrode.
Phase Proportioning
Thyristor
Relay
Electric circuit
2. A full-wave rectifier where the diodes are connected in a bridge circuit. This allows the current to the load during both the positive and negative alternating of the supply voltage.
Bridge Rectifier
Lag
Resistance
Mil
3. The measure of the ability of a material or substance to carry electrical current.
Conductance
Hard Wired
VF
Flux
4. NFPA;
Bridge Rectifier
Voltage Drop
Quantum
National Fire Protection Association
5. A high-intensity incandescent lamp with a quartz bulb containing an inert gas of iodine or bromine vapor.
Resistance
Quartziodine Lamp
Watt
Amplifier
6. A device - instrument or component that will not produce any spark or thermal effects under any conditions that are normal or abnormal that will ignite a specified gas mixture. Electrical and thermal energy limits are at levels incapable of causing i
Root Mean Square
RTD
Intrinsically safe
Delta
7. A process that is kept at a constant temperature.
Modulated Light Source Control
Isothermal
Y
Watt
8. The opposition to electrical flow.
Quartz
Latching logic
Field cell
Impedance
9. The element inside a vacuum tube - incandescent lamp or other similar device.
BTU
Bridge Rectifier
Cycle Time
Filament
10. See; 'Proximity Sensor'.
Impedance
Proximity Switch
Transient
International Organization for Standardization
11. One millionth of an amp.
Electric circuit
Microamp
Circuit
Milliamp
12. Symbol used to denote transmitter.
Direct Current
XMTR
Intrinsically safe
Threshold Response
13. The maximum watts that a device can safely handle.
Quantum
Maximum Power Rating
Volt
Power Supply
14. A fluctuation in the intensity of a steady current.
Current Proportioning
Ripple
International Organization for Standardization
Field cell
15. When there is current through a semiconductor p-n junction it is the resistance of a forward-biased junction.
AWG
Forward resistance
Open Circuit
Electric circuit
16. European environmental ratings. Similar to NEMA ratings in the USA. IP;*site has NEMA comparisons ~LINK~
Quality Control
Micron
Ripple
Ingress Protection Ratings
17. Commonly used in generators and motors - it is an electromagnet formed from a coil of insulated wire that is wound around a soft iron core.
Field cell
Canadian Standards Administration
Conduit
National Electrical Code
18. Inspection - analysis and action required to ensure quality of output.
Leakage current
Quality Control
Electromagnetic field
Conductance
19. A controller whose action is either fully on or off.
On/Off Controller
Quark
Velocity
Kilovolt amperes
20. Ultra High Frequency
Lag
UHF
Threshold Response
Conductance
21. A unit of electric charge. The amount of charge conveyed in one second by one ampere.
Modulated Light Source Control
Coulomb
Mueller Bridge
Operating Temperature
22. ISO;
CMV
American National Standards Institute
International Electrotechnical Commission
International Organization for Standardization
23. A three mode control consisting of time Proportioning - Integral and Derivative rate action.
Capacitor
Latching logic
PID
Power Supply
24. The interaction of magnetism and electrical current.
RTD
Anode
Factory Mutual
Electrodynamic
25. Variable Frequency.
Output
Fluorescent
VF
Momentary switch
26. SI; The standard metric system of units.
Quality Control
System International
Conductor
Forward Voltage
27. Voltage; The unit of electromotive force (EMF) that causes current to flow. One volt causes a current of one amp through a resistance of one ohm.
Voltage Drop
Volt
PSID
Hazardous Location
28. 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.
Cycle Time
Plasma
Watt
Occupational Safety & Health Administration
29. The behavior of charged particles and the steady motion of charge in magnetic and electric fields.
Electrokinetics
Infrared
Maximum Power Rating
Transducer
30. NEMA;
N.O.
Pulse
National Electrical Manufacturers Association
Maximum Power Rating
31. A form of control where the power supplied to a process is controlled by limiting the phase angle of the line voltage.
Conductor
Conduction
Interface
Phase Proportioning
32. 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.
PSIA
Plasma
Magnetic Field
Filament
33. Radio Frequency Interference.
International Electrotechnical Commission
International Brotherhood of Electrical Workers
RFI
Quartziodine Lamp
34. The method by which two devices or systems are connected and interact with each other.
OR Logic
Institute of Electrical and Electronics Engineers
Interface
Cathode
35. Pressure that is less than atmospheric pressure.
Hard Wired
Vacuum
Electrolysis
Isothermal
36. Pounds per square inch differential. The difference in pressure between two points.
Grounded Conductor
PSID
Rheostat
Potentiometer
37. The quality of having the ability to emit light when struck by electrons or another form of radiation.
Occupational Safety & Health Administration
Fluorescent
VHF
Impedance
38. The pronounced curvature in reverse voltage current that is characteristic of a diode.
XMTR
Weber
Zener Effect
Celsius
39. The amount of power that is consumed and converted to heat.
Thyristor
Kilovolt
Power Dissipation
XMTR
40. A positive (+) electrode. The point where electrons exit from a device to the external electric circuit.
Anode
Conductance
Isothermal
Zener Effect
41. An electrical circuit that is not 'made'. Contacts - switches or similar devices are open and preventing the floe of current.
Occupational Safety & Health Administration
AWG
Quantum Electronics
Open Circuit
42. The magnitude and time phase of a quantity - represented by a plotted line.
Filament
Vector
Q-value
Electricity
43. A variable resistor.
Transistor
SCR
Voltmeter
Potentiometer
44. CSA ~LINK~
Process Meter
Celsius
Mueller Bridge
Canadian Standards Administration
45. The power of one watt operating for one hour - and equal to 3 -600 joules.
Watt-hour
Kilovolt
Magnetic Field
Cycle
46. An electrical circuit that increases the power - voltage or current of an applied signal.
Maximum Load Current
Weber
Isothermal
Amplifier
47. The form of radiation used to make non-contact temperature measurements. In the electromagnetic spectrum it is the area beyond red light from 760 nanometers to 1000 microns.
Amplifier
Kilowatt Hour
Open Circuit
Infrared
48. The electrical demand of a process. Load can be expressed or calculated as amps (current) - ohms (resistance) or watts (power).
Latent heat
Load
Thermoelectricity
Diode
49. 'Common Mode Voltage.' The voltage which is tolerable between signal and ground.
Pulse
Dilectric
CMV
Transducer
50. The standard unit of magnetic flux.
Interface
American National Standards Institute
Weber
Rheostat
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