rcuit the power is used in does what function?
- Remote Control
- Color Balance
- High Voltage
Question: In a color television set using a picture tube a high voltage is used to accelerate electron beams to light the screen. What is that voltage?
- 500 Volts
- 5 Thousand Volts
- 25 Thousand Volts
- 100 Thousand Volts
Question: The NTSC (National Television Standards Committee) is also used in the country of ________?
Question: In the USA, the television broadcast standard is ________?
Question: Which is NOT an acceptable method of distributing small power outlets throughout an open plan office area?
- Power Poles
- Power Skirting
- Flush Floor Ducting
- Extension Cords
Question: In the UK, what type of installation requires a fireman's switch?
- Neon Lighting
- High Pressure Sodium Lighting
- Water Features
- Hotel Rooms
Question: What will a UPS be used for in a building?
- To provide power to essential equipment
- To monitor building electricity use
- To carry messages between departments
- To control lighting and power systems
Question: Larger buildings may be supplied with a medium voltage electricity supply, and will required a substation or mini-sub. What is the main item of equipment contained in these?
Question: Some lasers are referred to as being CW. What does CW mean?
- Circular wave
- Constant white
- Continuous wave
- Clear white
Question: What is the process responsible for producing photons in a diode laser?
- Fermi level shift
- Majority carrier injection
- Carrier freeze out
- Electron-hole recombination
Question: What are three types of lasers?
- Gas, Metal Vapor, Rock
- Pointer, Diode, CD
- Diode, Inverted, Pointer
- Gas, Solid State, Diode
Question: What was the active medium used in the first working laser ever constructed?
- A Diamond Block
- Helium-Neon Gas
- A Ruby Rod
- Carbon Dioxide Gas
Question: After the first photons of light are produced, which process is responsible for amplification of the light?
- Blackbody radiation
- Stimulated emission
- Planck's radiation
- Einstein oscillation
Question: Once the active medium is excited, the first photons of light are produced by which physical process?
- Blackbody radiation
- Spontaneous emission
- Synchrotron radiation
- Planck's oscillation
Question: The first step to getting output from a laser is to excite an active medium. What is this process called?
Question: What does AM mean?
- Angelo marconi
- Anno median
- Amplitude modulation
Question: What frequency range is the High Frequency band?
- 100 kHz
- 1 GHz
- 30 to 300 MHz
- 3 to 30 MHz
Question: What does EPROM stand for?
- Electric Programmable Read Only Memory
- Erasable Programmable Read Only Memory
- Evaluable Philotic Random Optic Memory
- Every Person Requires One Mind
Question: What does the term PLC stand for?
- Programmable Lift Computer
- Program List Control
- Programmable Logic Controller
- Piezo Lamp Connector
Question: Which motor is NOT suitable for use as a DC machine?
- Permanent Magnet Motor
- Series Motor
- Squirrel Cage Motor
- Synchronous Motor
Question: What does VVVF stand for?
- Variant Voltage Vile Frequency
- Variable Velocity Variable Fun
- Very Very Vicious Frequency
- Variable Voltage Variable Frequency
Question: The sampling rate, (how many samples per second are stored) for a CD is...?
- 48.4 kHz
- 22,050 Hz
- 44.1 kHz
- 48 kHz
Question: A Compact disc (according to the original CD specifications) hold how many minutes of music?
- 74 mins
- 56 mins
- 60 mins
- 90 mins
Question: Sometimes computers and cash registers in a foodmart are connected to a UPS system. What does UPS mean?
- United Parcel Service
- Uniform Product Support
- Under Paneling Storage
- Uninterruptable Power Supply
Question: What does AC and DC stand for in the electrical field?
- Alternating Current and Direct Current
- A Rock Band from Australia
- Average Current and Discharged Capacitor
- Atlantic City and District of Columbia
Question: Which consists of two plates separated by a dielectric and can store a charge?
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