Description : For a cinema, the optimum volume per person required is A. 3.1 B. 2.8 C. 7.1 D. 4.2
Last Answer : A. 3.1
Description : A radio communications link is to be established via the ionosphere. The maximum virtual height of the layer is 100 km at the midpoint of the path and the critical frequency is 2 MHz. The distance between stations is 600 ... optimum working frequency? A. 6.32 MHz B. 2.1 MHz C. 5.4 MHz D. 1.8 MHz
Last Answer : C. 5.4 MHz
Description : What is the optimum reverberation time at 500 to 1000 Hz of an auditorium? A. 0.9 to 1.1 s B. 1.4 to 1.6 s C. 1.5 to 1.6 s D. 1.6 to 1.8 s
Last Answer : D. 1.6 to 1.8 s
Description : What is the optimum reverberation time at 500 Hz for a cinema? A. 0.8 – 1.2 sec. B. 0.9 – 1.3 sec. C. 0.6 – 0.8 sec. D. 0.45 – 0.55 sec.
Last Answer : A. 0.8 – 1.2 sec.
Description : A method of expressing the amplitude of complex non-periodic signals such as speech. A. Frequency B. Wavelength C. Volume D. Pitch
Last Answer : C. Volume
Description : ______ used to measure speech volume A. Volume meter B. Audio frequency meter C. Volume unit meter D. Speech meter
Last Answer : C. Volume unit meter
Description : What does OMB stand for? A. Optical media board B. Organization of medical biologist C. Optical medium board D. Optimum main board
Last Answer : A. Optical media board
Description : To obtain the most reliable sky wave propagation the ____ should be used. A. Lowest useable frequency (LUF). B. Maximum useable frequency (MUF). C. Optimum useable frequency (OUF). D. Critical frequency
Last Answer : C. Optimum useable frequency (OUF).
Description : The speech coding rate in D-AMPS is ____. A. 8 kbps B. 13 kbps C. 15 kbps D. 20 kbps
Last Answer : A. 8 kbps
Description : In GSM cellular system, the speech coding rate is ____. A. 13 kbps B. 8 kbps C. 15 kbps D. 20 kbps
Last Answer : A. 13 kbps
Description : The range of speech power is ____. A. 1 – 10 watts B. 100 – 1000 milliwatts C. 10 – 100 milliwatts D. 10 – 1000 microwatts
Last Answer : 10 – 1000 microwatts
Description : What is considered the most obvious conveyor of information? A. Sound B. Speech C. Music D. Noise
Last Answer : B. Speech
Description : Find the equivalent inductance per foot of the above cable? A. 13.5 nF/ft B. 13.5 pF/ft C. 116.8 nH/ft D. 116.8 pF/ft
Last Answer : C. 116.8 nH/ft
Description : The following information is available for the W hotel for the latest thirty day period. Number of rooms available per night 40 Percentage occupancy achieved 65% Room servicing cost incurred Rs. 3900 The room servicing cost per occupied room- ... (a) Rs 3.25 (b) Rs 5.00 (c) Rs 97.50 (d) Rs 150.00
Last Answer : (b) Rs 5.00
Description : In a famous restaurant rooms were numbered from 401 to 430, each room gives an earning of Rs. 4675/ day for the first 15 days a month and for the later half, Rs. 5370/ day per room. Find the average income room per day over the month of 30 days? A) 5700.5 B) 5872.7 C) 5900.5 D) 5022.5
Last Answer : Answer: D) Total number of rooms = 30 earning in 1st 15 days for 30 rooms = 15 * 4675* 30 = Rs. 2103750 earning in 2nd 15 days for 30 rooms = 15 * 5370 * 30 = Rs. 2416500 Average income per ... day over the month of 30 days = [ 2103750 + 2416500] / [ 30 * 30] = Rs. 5022.5
Description : ECE Board Exam March 1996 What is the transmission rate of a system for transmitting the output of a microcomputer to a line printer operating at a speed of 30 lines/minute? Assume that the line printer has 8 bits ... and prints out 80 characters/line. A. 800 bps B. 400 bps C. 320 bps D. 640 bps
Last Answer : C. 320 bps
Description : As per norms for desirable amenity as given to model station, the retiring rooms should be provided on stations classified as --- (a) A & B* (b) A,B & C (c) A,B,C & D (d) A, B,C, D & E (e) A
Last Answer : a) A & B*
Description : As per norms for desirable amenity as given to model station, the clock rooms should be provided on stations classified as --- (a) A & B * (b) A,B & C (c) A,B,C & D (d) A, B,C, D & E (e) A
Last Answer : (a) A & B *
Description : As per norms for desirable amenity as given to model station, the refreshment rooms should be provided on stations classified as --- (a) A & B* (b) A,B & C (c) A,B,C & D (d) A, B,C, D & E (e) A
Last Answer : (a) A & B*
Description : A loudspeaker cabinet has an internal volume of 5,184 in3 (84,950 cm3 ). It has a port area on the baffle of 50 in2 (322.58cm2 ) and a thickness of 0.70 in (18 mm). What is the Helmholtz resonance, in hertz, of this loudspeaker enclosure? A. 250 Hz B. 245 Hz C. 240 Hz D. 255 Hz
Last Answer : C. 240 Hz
Description : What is affected by the distance between the listener and the source of the sound because the intensity varies inversely with the square of the distance? A. Volume B. Pitch C. Loudness D. Frequency
Last Answer : C. Loudness
Description : In acoustics, if the volume of the room is 200 m3 then at what frequency the coefficient of absorption is measured? A. 120 kHz B. 120 Hz C. 100 Hz D. 150 Hz
Last Answer : B. 120 Hz
Description : What volume of the chamber is required to measure absorption coefficient at 100 Hz? A. 125 m3 B. 50 m3 C. 150 m3 D. 352 m3
Last Answer : D. 352 m3
Description : One of the advantages of fiber optic which is referred to the volume of capacity of signals it can carry. A. Security B. Weight C. Bandwidth D. Physical size
Last Answer : C. Bandwidth
Description : Synchronous modems cost more than asynchronous modem because _______. A. They have larger bandwidth B. They are larger C. The production volume is larger D. They have clock recovery circuits
Last Answer : D. They have clock recovery circuits
Description : A speaker cabinet has an internal volume 84,950 cm3 . It has a port area on the baffle of 3,230 cm2 and baffle thickness of 19 mm. What is the Helmholtz resonance hertz of this speaker enclosure? A. 260 Hz B. 245 Hz C. 265 Hz D. 250 Hz
Last Answer : B. 245 Hz
Description : The optimum plant population per hectare of bajra is (a) 50,000 plants (b) 1,00,000 plants (c) 1,50,000 plants (d) 2,00,000 plants
Last Answer : (b) 1,00,000 plants
Description : How much carpet is needed to cover 2 rooms one of which is 12 ft and the other 10 ft by 8 ft?
Last Answer : Feel Free to Answer
Description : pH value of soil is maintained at __________ by the addition of fertiliser for optimum growth and health of the plant. (A) 4-5 (B) 7-8 (C) 9-10 (D) 12-13
Last Answer : (B) 7-8
Description : What is the optimum pH range for the cultivation of onion? a. 3.2-4.0 b. 5.8-6.5 c. 4.2-5.0 d. 8.9-10.6
Last Answer : b. 5.8-6.5
Description : Which is the optimum PH for nitrification? (Agriculture MCQ) a. 8.5 b. 9.5 c. 10 d. 7.5
Last Answer : a. 8.5
Description : How many nominees per position of the Electronics Engineering Board are nominated by IECEP to PRC? A. 3 B. 5 C. 4 D. 6
Last Answer : B. 5
Description : What is the phase coefficient in radians per unit length of a transmission line at the frequency of 10 MHz if the velocity of propagation is 2.5x108 m/s? A. 0.25 B. 2.5 C. 0.35 D. 3.5
Last Answer : A. 0.25
Description : The optimum pH of pancreatic lipase is (A) 2.0 (B) 4.0 (C) 6.0 (D) 8.0
Last Answer : Answer : C
Description : The optimum dissolved oxygen level (in mg/litre) required for survival of aquatic organisms is - (1) 4 - 6 (2) 2 - 4 (3) 8 - 10 (4) 12 - 16
Last Answer : (1) 4 - 6 Explanation: Oxygen is one of several dissolved gases important to aquatic systems. Dissolved oxygen is necessary to maintain aerobic conditions in surface waters and is ... approach saturation - that concentration which is in equilibrium with the partial pressure of atmospheric oxygen.
Description : The optimum moisture content in solids to be crushed/ground ranges from __________ percent. (A) 3 to 4 (B) 8 to 10 (C) 10 to 15 (D) 15 to 20
Last Answer : (A) 3 to 4
Description : The optimum dissolved oxygen level (in mg/litre) required for survival of aquatic organisms is : (1) 4 – 6 (2) 2 – 4 (3) 8 – 10 (4) 12 – 16
Last Answer : 4 – 6
Description : Cable attenuation is usually expressed in terms of a. Loss per foot b. dB/km c. intensity per mile d. voltage drop per inch
Last Answer : b. dB/km
Description : Power is __________. A. actual amount of power reference to 1mW B. logarithmic ratio of two powers C. definite amount of energy per time period D. current flow per time period
Last Answer : C. definite amount of energy per time period
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 : If a transmission line has a power loss of 6 dB per 100 feet, what is the power at the feed point to the antenna at the end of a 200 foot transmission line fed by a 100 watt transmitter? A. 70 watts B. 50 watts C. 25 watts D. 6 watts
Last Answer : D. 6 watts
Description : What is the term used to describe a spread spectrum communications system where the center frequency if a conventional carrier is altered many time per second in accordance with a pseudo ... hopping B. Direct sequence C. Time-domain frequency modulation D. Frequency compandored spread spectrum
Last Answer : A. Frequency hopping
Description : What is the refractive index of an ionospheric layer with 100x105 free electrons per m3 ? Assume frequency to be at 20 MHz. A. 0.99 B. 0.15 C. 0.78 D. 0.85
Last Answer : A. 0.99
Description : A radio signal travels ____ yards per microseconds. A. 273 B. 328 C. 618 D. 123.6
Last Answer : C. 618
Description : A transmission line consisting of two conductors that have equal resistance per unit length. A. Unbalanced line B. Open-wire line C. Balanced line D. Coaxial line
Last Answer : C. Balanced line
Description : The sound energy per unit area at right angles to the propagation direction per unit time. A. Sound intensity B. Loudness C. Coherence D. Sound stress
Last Answer : A. Sound intensity
Description : Codes must be A. agreed upon in advance between sender and receiver B. eight bit per character C. the same in all modern computer D. either seven or eighth bits per character
Last Answer : A. agreed upon in advance between sender and receiver
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