Description : Noise from random acoustic or electric noise that has equal energy per cycle over a specified total frequency band. A. Gaussian noise B. Whiter noise C. Thermal noise D. All of the above
Last Answer : D. All of the above
Description : Which of the following is NOT a porous absorber? A. Prefabricated tiles B. Plasters and spray on materials C. Acoustic blankets D. Membrane absorber
Last Answer : D. Membrane absorber
Description : What is typical loudness level of an acoustic guitar 1 foot away? A. 60dB B. 100dB C. 80dB D. 40dB
Last Answer : C. 80dB
Description : Noise from random acoustic or electric noise that has equal per cycle over a specified total frequency band. A. Thermal noise B. White noise C. Gaussian noise D. All of these
Last Answer : D. All of these
Description : ECE Board Exam March 1996 A device to be connected across the headset in telephone receivers to reduce the effects of acoustic shock. A. Ground B. Two rectifiers in parallel with opposite polarities C. Protector D. Fuse
Last Answer : B. Two rectifiers in parallel with opposite polarities
Description : Which one is not an important characteristic of the physical layer? A. Electrical B. Logical C. Mechanical D. All of the choices
Last Answer : B. Logical
Description : What determines antenna polarization? A. The frequency of the radiated wave B. The direction of the radiated wave C. The direction of the magnetic field vector D. The direction of the electric field vector
Last Answer : D. The direction of the electric field vector
Description : Where is the noise generated that primarily determines the signal-to-noise ratio in a VHF (150MHz) marine-band receiver? A. Man-made noise B. In the atmosphere C. In the receiver front end D. In the ionosphere
Last Answer : C. In the receiver front end
Description : What determines the ability of radar to determine the bearing to a target? A. Speed of light B. Speed of target C. Antenna directivity D. Frequency of signal
Last Answer : C. Antenna directivity
Description : What determines the velocity factor in a transmission line? A. The termination impedance B. The line length C. Dielectrics in the line D. The center conductor resistivity
Last Answer : C. Dielectrics in the line
Description : Which of the following determines the characteristics of a transmission line? A. Inductance B. Capacitance C. Physical dimension D. Length
Last Answer : C. Physical dimension
Description : One of the following is a high powered RF ac basic transmitter that has two or more stages, the oscillator stage which determines the frequency opereation and RF amplifier stage orstages that develop the ... to develop a good frequency stability. A. Goldsmith B. MOPA C. Alexanderson D. Hartley
Last Answer : B. MOPA
Description : What determines the velocity factor in transmission line? A. The center conductor resistivity B. Dielectrics in the line C. The termination impedance D. The line length
Last Answer : B. Dielectrics in the line
Description : Which of the following refers to the video signal amplitude that determines the quality of the picture? A. Chrominance B. Luminance C. Brightness D. Contrast
Last Answer : D. Contrast
Description : Where is the noise generated that primarily determines the signal-to-noise ratio in a VHF (150 MHz) marine-band receiver? A. In the ionosphere B. In the receiver rear end C. In the receiver front end D. In the atmosphere
Description : Which determines the number of sideband components of FM? A. Modulation frequency B. Modulation index C. Carrier frequency D. All of these
Last Answer : B. Modulation index
Description : Equal volumes of different gases at any definite temperature and pressure have- (1) Equal weights (2) equal masses (3) equal density (4) equal no. of molecules
Last Answer : (4) equal no. of molecules
Description : Circulation of gases in furnace is caused by the (A) Change in volume during a change of temperature (B) Difference in density between hot and cold gases (C) Furnace pressure in conjunction with draft in flues (D) All (A), (B) and (C
Last Answer : (D) All (A), (B) and (C
Description : According to Avogadro’s law, the density of any two gases is __________ their molecular masses, if the gases are at the same temperature and pressure. A. equal to B. directly proportional to C. inversely proportional to
Last Answer : Answer: B
Description : (3) the number of electrons orbiting around the nucleus Explanation: The chemical behavior of an atom is determined by the number of electrons on its outer shell. As for the chemical bonding properties of ... , and in what ratio atoms will bond to form the 20,000,000 different substances on Earth.
Last Answer : Methyl phenyl ether can be obtained by reacting - (1) phenolate ions and methyl iodide (2) methoxide ions and bromobenzene (3) methanol and phenol (4) bromobenzene and methyl bromide
Description : What satellite system parameter represents the quality of a satellite or an earth station receiver? A. Gain-to-Equivalent Noise Temperature Ratio (G/Te) B. Energy of Bit-to-Noise Density Ratio (Eb/No) C. Carrier-to-Noise Density Ratio (C/No) D. Bit energy
Last Answer : A. Gain-to-Equivalent Noise Temperature Ratio (G/Te)
Description : Thermocol (expanded polystyrene) is not used for (A) Low temperature thermal insulation as in refrigerator and air conditioners (B) Acoustic control and ceiling for building (C) High temperature thermal insulation in furnaces (D) Packing of delicate electronic gadgets
Last Answer : (C) High temperature thermal insulation in furnaces
Description : What is used for predicting the behavior of non-ideal gases? a. Compressibility factor b. Expansivity factor c. Emissivity factor d. Van-d-whal’s factor
Last Answer : Compressibility factor
Description : The compressibility factor, x, is used for predicting the behavior of nonideal gases. How is the compressibility ty factor defined relative to an ideal gas? (subscript c refers to critical value) A. ... compressibility factor, x, is an dimensionless constant given by pV=zRT. Therefore z = pV / RT
Last Answer : z = pV/ RT
Description : Could the rise in the average temperature of the globe cause an increase in greenhouse gases' density?
Last Answer : answer:It certainly seems counterintuitive to me unless. At higher temperatures it would seem the gasses would be less dense, not more. Rising temperatures will also tilt the greenhouse gas mix more toward ... . If you can buttonhole him at some point, ask him to explain his thinking on that.
Description : Which statement is false? (a) Many alkanes are soluble in water. (b) All alkanes have a lower density than water. (c) At room temperature some alkanes are liquids, some solids, some gases. (d) All alkanes burn
Last Answer : Many alkanes are soluble in water
Description : Calculate the recoverable waste heat (Q, in kCal/hour) from flue gases using the followingparameters: V (flow rate of the substance) 2000 m3/hr r (density of the flue gas): 0.9 kg/m3 Cp (specific heat ... (temperature difference): 120 oC h (recovery factor): 50% a. 21600 b. 43200 c. 25600 d. 34000
Last Answer : 21600
Description : The most important factor, which determines the maximum height to which water can be lifted by a pump at standard temperature is the (A) Barometric pressure (B) Speed of the impeller (C) Diameter of the impeller (D) Both (B) and (C)
Last Answer : (A) Barometric pressure
Description : ECE Board Exam March 1996 Atmospheric condition is controlled by A. humidity B. pressure C. temperature D. all of these
Last Answer : D. all of these
Description : The total noise power present in a 1-Hz bandwidth . A. Noise density B. Noise figure C. Noise limit D. Noise intensity
Last Answer : A. Noise density
Description : What is the most important specification of loudspeakers and microphones? A. Frequency response B. Power density C. Field Strength D. Gain
Last Answer : A. Frequency response
Description : ECE Board Exam March 1996 The capture area of an antenna is directly proportional to the A. frequency of the received signal B. distance between transmitter and receiver C. gain of the antenna D. power density of the signal
Last Answer : C. gain of the antenna
Description : The process of communication enhances through: (a) belongings/common (b) Security and freedom to make choices (c) Informality of meeting and avoidance of pressure (d) all of these
Last Answer : (d) all of these
Description : Under which of the following conditions does the behavior of a real gas resemble that of an ideal gas? Is it: w) under all conditions of temperature and pressure x) only at very high pressure ... when the gas is near condensation z) only at low densities when the molecules are relatively far apart
Last Answer : ANSWER: Z -- ONLY AT LOW DENSITIES WHEN THE MOLECULES ARE RELATIVELY FAR APART
Description : What acoustic guitar should I get?
Last Answer : Jack79 Don’t have an answer, sorry, but great to see you here!
Description : What's a good (mid-priced) acoustic guitar to buy?
Last Answer : I really like Taylor guitars. But it seems that most people fall either the Taylor or Martin camp. If I had the money, I’d get myself something simple, like the 210 ($800) or 310 ($1300). I’m not a professional musician, however. My current guitar is an Epiphone I bought for $150 21 years ago.
Description : If you have installed acoustic guitar pick-ups was it how was your experience?
Last Answer : I haven’t personally installed pickups in and acoustic guitar, but I can’t imagine it being that difficult. If you’ve installed a pickup on an electric guitar I’d say it’s pretty similar. I only suggest being careful when drilling a hole for the ¼” jack output.
Description : What are some good touring acoustic guitar amps?
Last Answer : Roland Cube
Description : Guitarists: Can you open my eyes to any recommended acoustic guitar?
Last Answer : answer:Go for a softer wood, spruce is typically seen as the best. You want the top to be a solid piece if at all possible. What that means is the wood on the top of the guitar (the part of the ... (always carry it by the body, never by the neck).. and it's been working great for me ever since.
Description : Guitarists: Can you help me solve this acoustic pickup problem?
Last Answer : I am rather partial to the Bill Lawarance sound hole pickup . No batteries (or tutorial) required.
Description : Guitarists: Can you help me find some really thick acoustic strings?
Last Answer : Martin
Description : How would you go about mixing and mastering simple vocal and acoustic songs?
Last Answer : answer:My mix board is a computer screen. Bottom line is you have one track per audio element. The absolute minimum is one track for the acoustic instrument and one for the vocal track. However, ... tracks that represent the stereo output. Each of these tracks also has EQ and filters if desired.
Description : Guitarists: Do you use your capo for both acoustic and electric?
Last Answer : answer:I used to use a capo on my 12-string. on the second fret, and tune all strings a full step low. The logic behind this, I had been led to believe, was to be able to play in the ... 've never purchased a capo online, and would hesitate to do so without some sense of how it feels and sounds.
Description : Are all acoustic guitar pickups battery operated?
Last Answer : answer:Nope. I’ve been using one of these for years.
Description : Good songs for acoustic guitar?
Last Answer : You can’t go wrong with the Beatles :-)
Description : Can a female vocalist comfortably interact with a large group of male acoustic musicians?
Last Answer : Edith Piaf and Los Panchos doing Beseme Mucho shows it can be done.
Description : What is the best gauge of acoustic guitar strings for a beginner?
Last Answer : Do you have a nylon or steel-stringed guitar? Do you generally play hard with a thick pick or soft with your fingers? The type/gauge of strings depends on your actual type of guitar, playing style, ... seem to be able to do both ends of the spectrum well (light finger picking and heavy strumming).
Description : Need a new acoustic guitar; recommendations?
Last Answer : I don’t know anything about that guitar. My relative has (had? I don’t know if he has them anymore) three Gibson guitars and he absolutely loves them. His are a Hummingbird (really pretty, my favorite), a J-45 something, and one that is some kind of vintage thing that he doesn’t even play.
Description : my opening act canceled tonight - who knows of an acoustic musician that can play tonight in oakland??
Last Answer : sorry . . .
Description : Where can i find a good acoustic guitar tuner?
Last Answer : I think the standard korg chromatic tuner everyone owns is really your best bet. Turn it on, play a string, keep plucking it while messing with the knob till you get it where it belongs. They don’t really get much easier or harder than that.