A device which has a high input impedance, low output impedance and high voltage gain is a Op-Amp. Class A amp. Class B amp.
A zener diode. stabilizes voltage at a predetermined level. allows current to flow in one direction. acts like a switch.
A Zener diode is used for. voltage regulation. rectification voltage stabilisation.
A control surface position feedback signal is. proportional to surface position. non-linear. inversely proportional to surface position.
A logic circuit with more than one gate will have. one of 2 states of logic output. an analogue output. 2 or more outputs.
A differential synchro rotor has. three windings. two windings. one winding.
A differential synchro rotor consists of. three windings at 120° apart. one winding parallel to the transmitter rotor. two windings at 90° apart.
A basic control transmitter synchro has 3 stator windings and 1 rotor winding 2 stator windings and 1 rotor winding 4 stator windings and 2 rotor winding.
A germanium diode is used for. rectification. modulation. voltage stabilization.
A D.C. signal converted to a phase sensitive A.C. is. modulation. phase conversion. demodulation.
A piece of pure Germanium. is electrically stable. has a deficit of electrons. has an excess of electrons.
a silicon diode is used for rectification voltage regulation. overvolts regulation.
A differential synchro motor consists of. 3 windings at 120° two windings at 90° one winding parallel to the transmitter rotor.
For an NPN transistor to conduct the collector circuit has to be. more positive than the base less positive than the emitter. more positive than the emitter.
A photodiode is operated under. reverse bias conditions with leaking current increasing in proportion to the light falling on the device reverse or forward bias conditions. forward bias conditions.
A thyristor has which of the following?. High resistance when switched off. High resistance when switched on. A positive temperature coefficient.
A differential synchro transmitter used for addition has. the TDX R1, R3 and S1, S3 connections cross connected to the TX the TDX S1 and S3 connections cross connected to the TR. the TDX S1 and S3 connections cross connected to the TX.
In a parallel AC circuit with capacitor and inductor, impedance will be high low constant .
What is the base material of a Printed Circuit Board PCB?. Insulator. Semiconductor. Conductor.
What are printed circuit boards made of? Fibreglass board coated with copper in which circuits are etched. Synthetic resin board etched with copper. Matrix board with components soldered on.
What is the base material of a printed circuit boards is made of?. a resin impregnated paper or epoxy resin impregnated fiber glass cloth Matrix board with components soldered on. Synthetic resin board etched with copper.
In a PNP transistor, which way does conventional current flow? Emitter to collector. Collector to emitter. Base to emitter.
A closed loop servomechanism. can have either position or velocity feedback. must have both position and velocity feedback. must only have position feedback.
The input resistance to an inverting op-amp is 100 Ohms. The feedback resistance is 100 kilohms. What is the amplifier gain?. -1000. 1/1000. 1000.
The negative feedback for an op-amp integrator is connected across a. capacitor. inductor. resistor.
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