Q: In which decade was the American Institute of Electrical Engineers (AIEE: founded?
A: 1850s
B: 1880s
C: 1930s
D: 1950s
Explanation: The IEEE (Institute of Electrical and Electronics Engineers) was formed in 1963 by the merger of the Institute of Radio Engineers (IRE, founded 1912) and the American Institute of Electrical Engineers (AIEE, founded 1884).
Q: What is part of a database that holds only one type of information?
A: Report
B: Field
C: Record
D: File
Explanation: No answer description available for this question.
Q: 'OS' computer abbreviation usually means ?
A: Order of Significance
B: Open Software
C: Operating System
D: Optical Sensor
Explanation: No answer description available for this question.
Q: In which decade with the first transatlantic radio broadcast occur?
A: 1850s
B: 1860s
C: 1870s
D: 1900s
Explanation: On December 12, 1901, a radio transmission received by Guglielmo Marconi resulted in the first transmission of a transatlantic wireless signal (Morse Code) from Poldhu, Cornwall, to St. John's, Newfoundland.
Q: '.MOV' extension refers usually to what kind of file?
A: Image file
B: Animation/movie file
C: Audio file
D: MS Office document
Explanation: No answer description available for this question.
Q: In which decade was the SPICE simulator introduced?
A: 1950s
B: 1960s
C: 1970s
D: 1980s
Explanation: SPICE (Simulation Program with Integrated Circuit Emphasis) was introduced in May 1972 by the University of Berkeley, California.
A: Sound
B: Remote control
C: Color balance
D: High voltage
Explanation: Some authorities are recommending TV's, VCR's and Stereo's be connected to power strips with switches and turned off when not in use to save energy. Your remote will not work until power is switched back on.
Q: Which is a type of Electrically-Erasable Programmable Read-Only Memory?
A: Flash
B: Flange
C: Fury
D: FRAM
Explanation: It's commonly used for MP3 players, computer BIOS code and "thumb" drives. Originally developed in Japan by Toshiba, it has become quite popular for products requiring non-volatile erasable memory. Flash devices have a limited number of erase cycles (typically 10,000 to 1,000,000 cycles) so they're not as good a choice for applications in which the data changes constantly. However, since it has no moving parts (unlike a hard disk) it is an excellent choice for storing the operating code for small personal electronics like PDAs, cell phones, digital cameras, and the data in items like MP3 players.
Q: The purpose of choke in tube light is ?
A: To decrease the current
B: To increase the current
C: To decrease the voltage momentarily
D: To increase the voltage momentarily
Explanation: No answer description available for this question.
Q: '.MPG' extension refers usually to what kind of file?
A: WordPerfect Document file
B: MS Office document
C: Animation/movie file
D: Image file
Explanation: No answer description available for this question.
A: Alan Turing
B: Jeff Bezos
C: George Boole
D: Charles Babbage
Explanation: No answer description available for this question.
A: Dennis Ritchie
&
B: David Filo
C: Vint Cerf
D: Steve Case
Explanation: No answer description available for this question.
Q: Made from a variety of materials, such as carbon, which inhibits the flow of current...?
A: Choke
B: Inductor
C: Resistor
D: Capacitor
Explanation: So named because it resists (or inhibits) the flow of current.
Q: The most common format for a home video recorder is VHS. VHS stands for...?
A: Video Home System
B: Very high speed
C: Video horizontal standard
D: Voltage house standard
Explanation: JVC (Japan Victor Corporation) and Matsushita (Panasonic) developed the VHS format to compete with Sony which developed the Beta format as the first home video cassette recorder. VHS originally stood for Vertical Helical Scan, but now means Video Home System.
A: Variant Voltage Vile Frequency
B: Variable Velocity Variable Fun
C: Very Very Vicious Frequency
D: Variable Voltage Variable Frequency
Explanation: It is a method of controlling the speed of an AC induction motor, whereby speed, current and torque can all be accurately controlled.
Q: What frequency range is the High Frequency band?
A: 100 kHz
B: 1 GHz
C: 30 to 300 MHz
D: 3 to 30 MHz
Explanation: The HF band is based on frequencies 3 to 30 Mhz. AM radio stations are in the HF band but normally are stated in kilohertz.
A: Pumping
B: Exciting
C: Priming
D: Raising
Explanation: A collection of atoms or molecules that can be excited to a higher energy state is called an active medium. Before lasing can occur, the active media is "pumped". The process of raising the atoms in the active media from a lower energy state to a higher state is like pumping water up from a well.
Q: What is the relationship between resistivity r and conductivity s?
A: R = s2
B: R = s
C: D: R = 1/s
Explanation: No answer description available for this question.
Q: Which motor is NOT suitable for use as a DC machine?
A: Permanent magnet motor
B: Series motor
C: Squirrel cage motor
D: Synchronous motor
Explanation: The squirrel cage motor is the only one without any connection to the armature.
Q: A given signal's second harmonic is twice the given signal's frequency...?
A: Fourier
B: Foundation
C: Fundamental
D: Field
Explanation: A given signal's second harmonic is twice the given signal's fundamental frequency. Harmonics are generated when there are non-linearities in an amplifier (there are always non-linearities). The worse the non-linearities, the more harmonics. A signal at 27.5 MHz (approximate frequency for US citizen's band) would have a second harmonic at 55.0 MHz (on US channel 2!). Can you see why there might be problems? A CB operator might do well to place a low-pass filter on his radio.
Q: In which year was MIDI(Musical Instrument Digital Interface) introduced?
A: 1987
B: 1983
C: 1973
D: 1977
Explanation: No answer description available for this question.
Q: What does the term PLC stand for?
A: Programmable Lift Computer
B: Program List Control
C: Programmable Logic Controller
D: Piezo Lamp Connector
Explanation: Used in manufacturing, engineering, and process operations.
A: Fundamental
B: Fall
C: Force
D: Figure
Explanation: "Noise figure" is one critical parameter for determining the "quality" of a low-noise, small-signal, amplifier, and perhaps more importantly, the sensitivity of the overall receiver system. It is especially important for VHF (very high frequency) - and higher frequency - designs where most of the undesired "noise" (noise that masks or overpowers the desired signals) is generated internal to the electronics itself. In HF (high frequency) applications, atmospheric noise plays a much larger role in determining overall useful sensitivity, so a circuit's "noise figure" is less important.
Q: 'DB' computer abbreviation usually means ?
A: Database
B: Double Byte
C: Data Block
D: Driver Boot
Explanation: No answer description available for this question.
Q: '.INI' extension refers usually to what kind of file?
A: Image file
B: System file
C: Hypertext related file
D: Image Color Matching Profile file
Explanation: No answer description available for this question.
Q: The sampling rate, (how many samples per second are stored) for a CD is...?
A: 48.4 kHz
B: 22,050 Hz
C: 44.1 kHz
D: 48 kHz
Explanation: CDs reproduce 44,100 samples per second. Which has a maximum frequency reproduction of 22,050 Hz, or just a hair past the upper limit of human hearing. In this way CDs can theoretically reproduce any frequency in the human hearing range.
Q: Who created Pretty Good Privacy (PGP)?
A: Phil Zimmermann
B: Tim Berners-Lee
C: Marc Andreessen
D: Ken Thompson
Explanation: Phil Zimmermann created the first version of PGP encryption in 1991. Pretty Good Privacy (PGP) is a data encryption and decryption computer program that provides cryptographic privacy and authentication for data communication. PGP is often used for signing, encrypting and decrypting texts, E-mails, files, directories and whole disk partitions to increase the security of e-mail communications.
A: URL (Universal Resource Locator)
B: LAN (Local Area Network)
C: WAN (Wide Area Network)
D: World Wide Web
Explanation: No answer description available for this question.
A: Blackbody radiation
B: Stimulated emission
C: Planck's radiation
D: Einstein oscillation
Explanation: The word "laser" is actually an acronym for light amplification by stimulated emission of radiation. Atoms or molecules of the active medium that have been excited to a higher energy level are stimulated by a passing photon to relax to a lower energy level and emit a photon that is indistinguishable from the passing photon, thereby increasing the number of photons like the incident one.
A: Power Poles
B: Power Skirting
C: Flush Floor Ducting
D: Extension Cords
Explanation: Extension cords can be a tripping hazard, and can be easily damaged, causing an unsafe situation. There are many ways of safely getting power to each work place, where wiring is protected and concealed.
A: United Parcel Service
B: Uniform Product Support
C: Under Paneling Storage
D: Uninterruptable Power Supply
Explanation: An uninterruptable power supply (UPS) is a backup power supply, such as a battery, that provides emergency power in the event that power is lost from the main supply.
Q: Who co-founded Hotmail in 1996 and then sold the company to Microsoft?
A: Shawn Fanning
B: Ada Byron Lovelace
C: Sabeer Bhatia
D: Ray Tomlinson
Explanation: No answer description available for this question.
Q: '.TMP' extension refers usually to what kind of file?
A: Compressed Archive file
B: Image file
C: Temporary file
D: Audio file
Explanation: No answer description available for this question.
Q: In the UK, what type of installation requires a fireman's switch?
A: Neon Lighting
B: High Pressure Sodium Lighting
C: Water Features
D: Hotel Rooms
Explanation: Neon lighting runs at a high voltage, typically above 1000 Volts. A fireman's switch protects a fireman from receiving a shock when a water jet is sprayed onto the installation. The switches are red, and mounted in a conspicuous position. (This is specified by IEE Regulations (Europe), SANS (South Africa), UK Electricity regulations and many Asian countries. I am unable to confirm other countries' requirements, so feel free to let me know.)
A: Transformer
B: Yoke
C: Capacitor
D: Diode
Explanation: Twisting the yoke will tilt the picture. A projection color television uses three picture tubes and yokes for red, green and blue light.
Q: In the United States the television broadcast standard is...?
A: PAL
B: NTSC
C: SECAM
D: RGB
Explanation: PAL and SECAM are standards used in other countries. RGB stands for red, green, and blue - the colors of light used to create an image in a color tv set and is often used as a format name for computer monitors.
A: 500 volts
B: 5 thousand volts
C: 25 thousand volts
D: 100 thousand volts
Explanation: This voltage often remains in storage even if the set is unplugged. Although the voltage is very high it has very low power but it can be dangerous because your body jumps if brought in contact.
Q: The transformer that develops the high voltage in a home television is commonly called a...?
A: Tesla coil
B: Flyback
C: Yoke
D: Van de Graaf
Explanation: The flyback is usually connected to the system that pulls the electron beam across the screen in one direction to 'paint' a line of the image and then returns in the other direction much faster.
Q: Which consists of two plates separated by a dielectric and can store a charge?
A: Inductor
B: Capacitor
C: Transistor
D: Relay
Explanation: Useful in tuning and filtering circuits, it blocks DC while passing AC. How much charge a capacitor can store is its capacitance, measured in farads.nn
A: Inernet
B: Interanet
C: Local Area Network
D: Wide Area Network
Explanation: No answer description available for this question.
Q: '.JPG' extension refers usually to what kind of file?
A: System file
B: Animation/movie file
C: MS Encarta document
D: Image file
Explanation: No answer description available for this question.
A: Angelo marconi
B: Anno median
C: Amplitude modulation
D: Amperes
Explanation: Amplitude modulation was the first type to be used in radio. It works well with HF and morse code.
Q: In what year was the "@" chosen for its use in e-mail addresses?
A: 1976
B: 1972
C: 1980
D: 1984
Explanation: No answer description available for this question.
Q: '.TXT' extension refers usually to what kind of file?
A: Text File
B: Image file
C: Audio file
D: Adobe Acrobat file
Explanation: No answer description available for this question.
Q: What was the first ARPANET message?
A: "lo"
B: "hello world"
C: "mary had a little lamb"
D: "cyberspace, the final frontier"
Explanation: No answer description available for this question.
Q: The NTSC (National Television Standards Committee) is also used in the country of...?
A: Japan
B: France
C: Germany
D: England
Explanation: No answer description available for this question.
Q: "FET" is a type of transistor, Its full name is Effect Transistor...?
A: Field
B: Factor
C: Flash
D: Force
Explanation: The terminals of FETs are called gate, drain and source. You might be more familiar with bipolar junction transistors (BJTs), which have terminals called base, collector and emitter. FETs were conceptualized first, but BJTs were easier to produce and so developed sooner.
Q: What are three types of lasers?
A: Gas, metal vapor, rock
B: Pointer, diode, CD
C: Diode, inverted, pointer
D: Gas, solid state, diode
Explanation: The first laser was a solid state laser. Solid state refers to any solid material like a glass rod. Diode lasers are very common because they are used to read compact disks and digital video disks in computers, CD players, and DVD players. Before diode lasers, the most common type of laser may have been the helium-neon laser, in which the active medium is a combination of the two gasses helium and neon.
Q: What will a UPS be used for in a building?
A: To provide power to essential equipment
B: To monitor building electricity use
C: To carry messages between departments
D: To control lighting and power systems
Explanation: UPS stands for Uninterruptible Power Supply. Examples of equipment that may require a UPS supply are computers, fire detection systems, hospital operating theatre equipment and escape route lighting.
Q: Who built the world's first binary digit computer: Z1...?
A: Konrad Zuse
B: Ken Thompson
C: Alan Turing
D: George Boole
Explanation: No answer description available for this question.
Q: Compact discs, (according to the original CD specifications) hold how many minutes of music?
A: 74 mins
B: 56 mins
C: 60 mins
D: 90 mins
Explanation: According to many stories surrounding the origin of the compact disc, 74 minutes was settled on because it would comfortably contain all of Beethoven's 9th symphony on one disc. Although some stories reference a specific Sony higher-up who claimed this as his favorite piece of music, stories differ. All that's known for sure is that Sony insisted on this and won out over Phillips' original 60 minute proposal.
A: Blackbody radiation
B: Spontaneous emission
C: Synchrotron radiation
Q: In which decade was the ARRL founded?
A: 1940s
B: 1930s
C: 1920s
D: 1910s
Explanation: On April 6, 1914, Hiram Percy Maxim proposed the formation of the American Radio Relay League.
Q: 'CD' computer abbreviation usually means ?
A: Command Description
B: Change Data
C: Copy Density
D: Compact Disc
Explanation: No answer description available for this question.
Q: '.BAK' extension refers usually to what kind of file?
A: Backup file
B: Audio file
C: Animation/movie file
D: MS Encarta document
Explanation: No answer description available for this question.
Q: Where is the headquarters of Intel located?
A: Redmond, Washington
B: Tucson, Arizona
C: Santa Clara, California
D: Richmond, Virginia
Explanation: No answer description available for this question.
Q: Who co-created the UNIX operating system in 1969 with Dennis Ritchie?
A: Bjarne Stroustrup
B: Steve Wozniak
C: Ken Thompson
D: Niklaus Wirth
Explanation: No answer description available for this question.
Q: Voltage is sometimes referred to as EMF, or Electromotive...?
A: Field
B: Factor
C: Flash
D: Force
Explanation: The term EMF, or Electromotive Force, its use now in decline, is attributed to Italian physicist Alessandro Volta (1745-1827). Today we generally use the term "voltage" - can you guess why we call it that?
A: Angelo marconi
B: Anno median
C: Amplitude modulation
D: Amperes
Explanation: Amplitude modulation was the first type to be used in radio. It works well with HF and morse code.
Q: '.BAT' extension refers usually to what kind of file?
A: Compressed Archive file
B: System file
C: Audio file
D: Backup file
Explanation: No answer description available for this question.
Q: What is the term to ask the computer to put information in order numerically or alphabetically?
A: Crop
B: Report
C: Record
D: Sort
Explanation: No answer description available for this question.
Q: The input used by an antenna or cable to a TV set uses frequencies called...?
A: B: C: D: SAP
Explanation: RF is radio frequency. IF is intermediate frequency used inside the TV for processing. AF is audio frequency. SAP is second audio program which may have another language or other soundtrack as an option to the main soundtrack.
A: Transformer
B: Transponder
C: Transducer
D: Converter
Explanation: The transformer is used to transform a medium voltage supply to a low voltage supply, e.g. from 11 000 V to 400 V. A transformer is rated in kVA, kilo-Volt-Amps, which is a measurement of electrical power.
Q: What was the active medium used in the first working laser ever constructed?
A: A diamond block
B: Helium-neon gas
C: A ruby rod
D: Carbon dioxide gas
Explanation: Theodore Maiman built the first working laser using a ruby rod while working at Hughes Research Laboratories in Malibu, California. It lased for the first time on May 16, 1960.
A: Electric Programmable Read Only Memory
B: Erasable Programmable Read Only Memory
C: Evaluable Philotic Random Optic Memory
D: Every Person Requires One Mind
Explanation: A chip found in alomst every microprocessor...