Description : A generator uses what method to produce a voltage?
Last Answer : Magnetic.
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 : Ships’ generators produce 450-volt, three-phase, ac power; however, most equipment uses 117-volt, single-phase power What transformers and connections are used to convert 450- volt, threephase power to 117-volt, single-phase power?
Last Answer : A method of generating oscillations, a method of turning the oscillations on and off (keying), and an antenna to radiate the energy.
Description : Why will a meter indicate more voltage at the battery terminal when the battery is out of a circuit than when the battery is in a circuit?
Last Answer : The internal (source) resistance of the battery will drop some of the voltage
Description : At what voltage is a NICAD battery considered to be fully discharged?
Last Answer : At 1.1 volts.
Description : What is the voltage drop across the resistor in an RC charging circuit when the charge on the capacitor is equal to the battery voltage?
Last Answer : Zero.
Description : What is the filter called in which the low frequencies do not produce a useful voltage?
Last Answer : High-pass filter, low-frequency discriminator, or low-frequency attenuator.
Description : What component causes a generator to produce dc voltage rather than ac voltage at its output terminals?
Last Answer : A commutator
Description : What transmission method uses a stable cw reference oscillator, which is locked in phase with the transmitter frequency?
Last Answer : Pulse-Doppler.
Description : Which of the listed transformer uses a single winding to produce voltage transformation? A. Stepup transformers B. Stepdown transformers C. Autotransformers D. Isolation transformers
Last Answer : Answer: C
Description : A thermocouple is a device that produces voltage by what method?
Last Answer : Heat.
Description : The piezoelectric effect is an example of a voltage being produced by what method?
Last Answer : Pressure.
Description : All of the following are common characteristics of experimental research except: a. It relies primarily on the collection of numerical data b. It can produce important knowledge about cause and ... uses the deductive scientific method d. It rarely is conducted in a controlled setting or environment
Last Answer : d. It rarely is conducted in a controlled setting or environment
Description : Besides eliminating the emitter-base battery, what other advantages can different biasing methods offer?
Last Answer : Compensation for slight variations in transistor characteristics and changes in transistor conduction because of temperature variations.
Description : In order to reverse bias in a PN junction, what terminal of a battery is connected to the P material?
Last Answer : Negative.
Description : What is the advantage of using a battery test set versus a voltmeter to test batteries?
Last Answer : A battery test set will test batteries under load conditions.
Description : If violent gassing occurs during a battery charge, what action should be taken?
Last Answer : .Reduce the charging rate.
Description : Can a battery be recharged by adding more electrolytes?
Last Answer : No, a current must be passed through the battery.
Description : How is the type of battery most easily determined?
Last Answer : By looking at the nameplate data.
Description : Other than the type of cell used, what is the major difference between the construction of the leadacid and nicad battery?
Last Answer : The cells in the nicad battery can be replaced.
Description : What does the term battery normally refer to?
Last Answer : A voltage source in a single container made from one or more cells.
Last Answer : voltage source in a single container made from one or more cells.
Description : What device is used to produce a gradual change in impedance at the end of a waveguide?
Last Answer : Horn.
Description : What field configuration is easiest to produce in a given waveguide?
Last Answer : . Dominant mode
Description : What is added to a sawtooth generator to produce a trapezoidal wave?
Last Answer : A resistor.
Description : In a bistable multivibrator, how many trigger pulses are needed to produce one complete cycle in the output?
Last Answer : Two.
Description : What type circuit is used to produce square or rectangular waves?
Last Answer : Multivibrator.
Description : The horizontal-deflection plates are used to produce what function?
Last Answer : Time and/or frequency relationships.
Description : Scopes that produce two channels on a single CRT with a single beam are referred to as what types of scopes?
Last Answer : Dual-trace oscilloscopes.
Description : A two-input X-OR gate will produce a HIGH output when the inputs are at what logic levels?
Last Answer : . One or the other of the inputs must be HIGH, but not both at the same time.
Description : What type of bias is required to cause an LED to produce light?
Last Answer : Forward bias.
Description : Which component of the receiver produces the signal that is mixed with the received signal to produce the IF signal?
Last Answer : Local oscillator.
Description : In the power amplifier shown in figure 2-10, what two signals are mixed to produce the output signal?
Last Answer : Local oscillator and coherent oscillator.
Description : Range-marker generators produce pulses based on what radar constant?
Last Answer : The radar mile (12.36 microseconds).
Description : Rotation of an rf-feed source to produce a conical scan pattern is identified by what term?
Last Answer : Nutation.
Description : Which type of optical source tends to operate at higher drive currents to produce light?
Last Answer : Laser.
Description : A magnetron will produce oscillations when the electrons follow what type of path?
Last Answer : Circular.
Description : In what state must the inputs to a NOR gate be in order to produce a logic 1 output?
Last Answer : All inputs must be low.
Description : A NAND gate has inputs labeled as A, B, and C. If A and B are HIGH, C must be at what logic level to produce a HIGH output?
Last Answer : . Low.
Description : What must be the state of the inputs to a NAND gate in order to produce a LOW output?
Last Answer : All inputs must be HIGH.
Description : How many of those combinations will produce a HIGH output?
Last Answer : Seven.
Description : What must be the logic state of R and S to produce the TRUE output?
Last Answer : Both must be 1s (HIGH) at the same time.
Description : What components in an electrodynamometer-type meter movement produce the magnetic field?
Last Answer : Fixed coils.
Description : (True or False) The larger the current required to produce full-scale deflection of the meter coil, the better the sensitivity of the meter.
Last Answer : False.
Description : What type of temperature coefficient material does not produce increased heat in response to increased current flow?
Last Answer : Zero-temperature coefficient.
Description : How much must the fpa plate current vary to produce 100- percent modulation in a plate modulator?
Last Answer : Between 0 and nearly two times its unmodulated value.
Description : What type of equipment normally uses 26-volt 400-hertz synchros?
Last Answer : . Aircraft.
Description : What type of logic family uses diodes in the input?
Last Answer : DTL (diode transistor logic).