Description : Operation of an accelerometer is based on what physical property?
Last Answer : Inertia.
Description : Name a common application of counting circuits.
Last Answer : Frequency counters or frequency dividers.
Description : Which of the following statement(s) is/are true concerning oxygen kinetics in a critically ill, febrile patient? a. Oxygen consumption will likely exceed three times normal b. The high cardiac ... adequate compensation as long as the oxygen delivery/oxygen consumption rate is greater than 2:1
Last Answer : Answer: b, d In critically ill patients oxygen consumption may be elevated or depressed, but slight to moderate elevations in oxygen consumption is the most common abnormality in critically ill patients. ... however, and the patient will remain stable as long as the ratio is greater than 2:1
Description : What component in a blocking oscillator controls pulse width?
Last Answer : Transformer.
Description : In an astable multivibrator, which components determine the pulse repetition frequency?
Last Answer : RC coupling networks.
Description : The spectrum of a radar transmitter describes what characteristic of the output pulse?
Last Answer : Frequency distribution
Description : What signal is used to synchronize the coherent oscillator to a fixed phase relationship with the transmitted pulse?
Last Answer : Coho lock pulse.
Description : In addition to a flat top, what characteristics must a modulator pulse have?
Last Answer : Steep leading and trailing edges.
Description : What controls transmitter pulse width?
Last Answer : The modulator.
Description : The range sweep in a range-gate generator is started at the same time as what other pulse?
Last Answer : Transmitter.
Description : What width is the pulse radiated by fire-control tracking radar?
Last Answer : Very narrow.
Description : Why do 2D air-search radars use relatively low carrier frequencies and low pulse-repetition rates?
Last Answer : Increased maximum range.
Description : When a transmitter uses a high-power oscillator to produce the output pulse, what switches the oscillator on and off?
Last Answer : High-voltage pulse from the modulator.
Description : What term is used to describe the product of pulse width and pulse-repetition frequency?
Last Answer : Duty cycle.
Description : If the length of the fiber point defect changes with pulse duration, is the OTDR signal deviation a point defect or a region of high fiber attenuation?
Last Answer : A point defect.
Description : Modes of a light pulse that enter the fiber at one time exit the fiber at different times. This condition causes the light pulse to spread. What is this condition called?
Last Answer : Modal dispersion.
Description : Which digital data encoding method records a digital one as a positive pulse and a digital (zero) as a negative pulse and returns the tape to neutral between pulses?
Last Answer : Return-to-zero (RZ) encoding.
Description : How is conversion used in pulse demodulation?
Last Answer : Ppm, pfm, and pcm are converted to either pdm or pam for demodulation.
Description : What characteristic of a pulse does a peak detector sample?
Last Answer : Pulse amplitude or pulse duration
Description : What minimum/maximum voltage level can be attained in the pulse generator section by adjusting the LEVEL control?
Last Answer : 0 to 5 volts.
Description : What is the primary advantage of pulse-modulation systems?
Last Answer : . Low susceptibility to noise.
Description : Pulse-code modulation requires the use of approximations of value that are obtained by what process?
Last Answer : Quantization.
Description : What is pulse-frequency modulation?
Last Answer : A method of pulse modulation in which a modulating wave is used to frequency modulate a pulse-generating circuit
Description : What is the main disadvantage of pulse-position modulation?
Last Answer : It requires synchronization between the transmitter and receiver.
Description : Which edges of the pulse can be modulated in pulse duration modulation?
Last Answer : Either, or both at the same time.
Description : What characteristics of a pulse can be changed in pulse time modulation?
Last Answer : The time duration of the pulses or the time of occurrence of the pulses.
Description : What, if any, noise susceptibility advantage exists for pulse-amplitude modulation over analog amplitude modulation?
Last Answer : Both are susceptible to noise and interference
Description : To ensure the accuracy of a transmission, what is the minimum number of times a modulating wave should be sampled in pulse modulation?
Last Answer : 2.5 times the highest modulating frequency.
Description : What action is necessary to impress intelligence on the pulse train in pulse modulation?
Last Answer : Some characteristic of the pulses has to be varied.
Description : Distribution mains of any water supply, is normally designed for its average daily requirement (A) 100 % . (B) 150 % (C) 200 % (D) 225 %
Last Answer : (D) 225 %
Description : When compared to incandescent lamps, what is the power requirement of an LED?
Last Answer : Very low.
Description : What basic requirement of a closed-loop system (not present in open-loops) enables present load position to be sensed?
Last Answer : Feedback.
Description : State one requirement of an electron tube, which does not exist for semiconductors, that makes the tube less efficient than the semiconductor.
Last Answer : The electron tube requires filament or heater voltage, whereas the semiconductor device does not; consequently, no power input is spent by the semiconductor for conduction.
Description : If the load requirement consists of both positive and negative voltages, what technique is used in the voltage divider to supply the loads from a single voltage source?
Last Answer : The ground (reference point) is placed in the proper point in the voltage divider so that positive and negative voltages are supplied
Description : What is the function of an accelerometer?
Last Answer : What is the answer ?
Description : Accelerometer detects the A. small acceleration B. large acceleration C. small deceleration D. large acceleration and deceleration
Last Answer : large acceleration and deceleration
Description : Which of the following is an example of inertia sensor? A : Thermometer B : Accelerometer C : Touch screen D : TV Remote
Last Answer : B : Accelerometer
Description : Which of the following is an example of infrared sensor? A : Thermometer B : Accelerometer C : Gyroscope D : TV Remote
Last Answer : D : TV Remote
Description : Which of the following is an example of contact sensor? A : Thermometer B : Accelerometer C : Gyroscope D : TV Remote
Last Answer : A : Thermometer
Description : From the following, which one is also known as low-frequency Transducer? (A) Stroboscope (B) Accelerometer (C) Vibrometer (D) None of the above
Last Answer : (C) Vibrometer