A. Netscape
B. Veronica
C. Mosaic
D. Explorer
✅ The correct answer is option C.
Technology MCQs
312. Name the terminals of an FET.
A. Drain, Gate, Source
B. Positive, Negative, Neutral
C. Anode, Cathode, Triode
D. Emitter, Base, Collector
✅ The correct answer is option A.
313. Sometimes computers and cache registers in a foodmart are connected to a UPS system. What does UPS mean?
A. United Parcel Service
B. Uniform Product Support
C. Under Paneling Storage
D. Uninterruptable Power Supply
✅ The correct answer is option D.
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.
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.
314. Once the active medium is excited, the first photons of light are produced by which physical process?
A. Blackbody radiation
B. Spontaneous emission
C. Synchrotron radiation
D. Planck�s oscillation
✅ The correct answer is option B.
Spontaneous emission is what you see with most “glow in the dark” toys. You excite the toy by exposing it to bright light, then the toy glows in the dark by spontaneously emitting photons as the excited atoms relax back down to their normal state.
Spontaneous emission is what you see with most “glow in the dark” toys. You excite the toy by exposing it to bright light, then the toy glows in the dark by spontaneously emitting photons as the excited atoms relax back down to their normal state.
315. The NTSC (National Television Standards Committee) is also used in the country of…?
A. Japan
B. France
C. Germany
D. England
✅ The correct answer is option A.
316. ‘.TXT’ extension refers usually to what kind of file?
A. Text File
B. Image file
C. Audio file
D. Adobe Acrobat file
✅ The correct answer is option A.
317. ‘.JPG’ extension refers usually to what kind of file?
A. System file
B. Animation/movie file
C. MS Encarta document
D. Image file
✅ The correct answer is option D.
318. Where is the headquarters of Intel located?
A. Redmond, Washington
B. Tucson, Arizona
C. Santa Clara, California
D. Richmond, Virginia
✅ The correct answer is option C.
319. What was the first ARPANET message?
A. “lo”
B. “hello world”
C. “mary had a little lamb”
D. “cyberspace, the final frontier”
✅ The correct answer is option A.
320. A given signal’s second harmonic is twice the given signal’s __________ frequency…?
A. Fourier
B. Foundation
C. Fundamental
D. Field
✅ The correct answer is option C.
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.
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.