Description : What modulator element controls the rate at which the storage element charges?
Last Answer : The charging impedance.
Description : What type of tube best meets the requirements of a modulator switching element?
Last Answer : Thyratron.
Description : The voltage at the reference electrode of the circuit shown in the illustration is applied to the input of a/an ______________. EL-0090 A. class A detector whose output drives an ... drives an 2-stage isolation transformer D. magnetic amplifier whose output controls a saturable reactor
Last Answer : Answer: D
Description : What do you call a circuit that controls the magnetron output? A. Inverter B. Impeller C. Modulator D. Converter
Last Answer : C. Modulator
Description : What element controls the number of electrons striking the screen?
Last Answer : Control grid.
Description : What is the purpose of a modulator in a servo system?
Last Answer : To convert a dc error signal into an ac error signal.
Description : What type of modulator is most commonly used in modern radar systems?
Last Answer : Line-pulsed.
Description : In addition to a flat top, what characteristics must a modulator pulse have?
Last Answer : Steep leading and trailing edges.
Description : What components may be used to build a basic phase modulator?
Last Answer : A phase-shift network such as a variable resistor and capacitor in series
Description : What characteristic of a varactor is used in an fm modulator?
Last Answer : Capacitance.
Description : What circuit section is required in the output of a multivibrator modulator to eliminate unwanted output frequencies?
Last Answer : An LCR filter.
Description : What characteristic of a transistor is varied in a semiconductor-reactance modulator?
Last Answer : Collector-to-emitter capacitance.
Description : How does the reactance-tube modulator impress intelligence onto an rf carrier?
Last Answer : By changing the reactance of an oscillator circuit in consonance with the modulating voltage.
Description : What are the basic components of a thyratron modulator?
Last Answer : ower source, a circuit for storing energy, a circuit for discharging the storage circuit, and a pulse transformer.
Description : What is the primary component for a spark-gap modulator?
Last Answer : Either a fixed spark gap that uses a trigger pulse to ionize the air between the contacts, or a rotary gap that is similar to a mechanical switch.
Description : What causes the change in collector current in an emitter injection modulator?
Last Answer : Gain is varied by changing the voltage on the emitter.
Description : What type of modulator is the cathode modulator (low- or high-level)?
Last Answer : Low-level.
Description : When is a control-grid modulator used?
Last Answer : In cases when the use of a minimum of af modulator power is desired.
Description : The collector-injection modulator is similar to what type of tube modulator?
Last Answer : Plate modulator.
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 : The modulator is required to be what kind of a circuit stage in a plate modulator?
Last Answer : Power amplifier
Description : For what class of operation is the final rf power amplifier of a plate-modulator circuit biased?
Last Answer : Class C
Description : How does the law of magnetic poles relate to the law of electric charges?
Last Answer : They are very similar; like charges repel, unlike charges attract, like poles repel —unlike poles attract.
Description : How are static charges created?
Last Answer : By friction.
Description : What are the three types of subatomic particles, and what are their charges?
Last Answer : Electrons-negative, protons-positive, and neutrons-neutral
Description : What component in a blocking oscillator controls pulse width?
Last Answer : Transformer.
Description : What controls the computer during processing?
Last Answer : Coded instructions.
Description : The output of the sum point must contain information that controls what two factors of load movement in a position servo?
Last Answer : Amount and direction of rotation.
Description : What controls transmitter pulse width?
Last Answer : The modulator.
Description : What controls the output frequency of a magnetron?
Last Answer : . The resonant cavities.
Description : What type of reeling system best controls a tape recorder's tape tension during starts and stops?
Last Answer : A tape buffering reeling system
Description : What part of a floppy disk drive transport contains the circuitry which controls the electromechanical parts of the transport?
Last Answer : Drive electronics circuit board.
Description : The unpaid seller can exercise his right of lien over the goods for a) any lawfull charges b)price of goods c) storage charges d)all of these
Last Answer : d)all of these
Description : A combination of equipment and controls which handles, stores and retrieves materials withprecision,accuracy and speed under a defined degree of automation is known as ____ a.Automated storage and retrieval system (AS/RS) b.Flexible manufacturing system c.Automated guided vehicle d.None of the above
Last Answer : a.Automated storage and retrieval system (AS/RS)
Description : The lobe of the brain that is the largest and controls abstract thought is the ____________ lobe. a) frontal The frontal lobe also controls information storage or memory and motor function ... and other cortical areas. d) occipital The occipital lobe is responsible for visual interpretation.
Last Answer : a) frontal The frontal lobe also controls information storage or memory and motor function.
Description : Which mineral element controls the activity of Nitrate reductase ? (A) Fe (B) Mo (C) Zn (D) Ca
Last Answer : Answer : A
Description : __________ is the most important element, which controls the physical properties of steel. (A) Manganese (B) Silicon (C) Carbon (D) Vanadium
Last Answer : (C) Carbon
Description : What CRT element provides for controls of the number of electrons passing father into the tube?
Last Answer : control grid
Description : Price is a key element in the marketing mix because it relates directly to A)the size of the sales force. B)the speed of an exchange. C)quality controls. D)the generation of total revenue. E)brand image.
Last Answer : D)the generation of total revenue.
Last Answer : Modulator Horo Modem Of In full The first Part.it Digital To the signal Analog In the signal Transformed By
Description : In computing, how is a modulator-demodulator more commonly known?
Last Answer : Modem
Description : Zymogen is a (A) Vitamin (B) Enzyme precursor (C) Modulator (D) Hormone
Last Answer : Answer : B
Description : A substance unrelated to substrate but capable of reversibly changing activity of enzyme by binding to a site other than active site is called (a) Competitive inhibitor (b) Non-competitive inhibitor (c) Catalytic inhibitor (d) Allosteric modulator/inhibitor
Last Answer : Ans. ((d))
Description : In Nuclear reactors graphite is used as (1) Lubricant (2) Fuel (3) Linear of the reactor (4) Modulator
Last Answer : (4) Modulator Explanation: Nuclear reactors are used at nuclear power plants for electricity generation. These are generally graphite moderated and CO2 cooled.
Description : An electrical device which prevents an action from occurring until all other required conditions are met is called a/an ___________. A. limit B. monitor C. modulator D. interlock