Club 66 Questions Flashcards
(26 cards)
A resolver has how many stators and rotors?
2 coils on the rotor and 2 coils on the stator
A diode which emits photons when conducting is a?
Light emitting diode
How is a PCB protected after manufacture?
By a conformal coating
Forward voltage of a silicon diode is?
0.7V
How is a non-inverting op-amp laid out?
Non-inverting input connection only
How can a differential synchro be used?
Either as a transmitter or a receiver
A multi-layer PCB has how many layers?
Two or more layers on one or both sides
A servo system that overshoots and oscillates is?
Under damped
In a PNP transistor, conventional current will flow when?
The emitter is more positive than the base
A germanium diode is used for?
Demodulation
What gives the colour of an LED?
The active element
A synchro transformer is used to?
Derive an error voltage from a synchro transmitter signal and shaft position
Why is a diode put in parallel with an LED?
To protect it from AC
In an operational amplifier, the two input waves are the same amplitude, same frequency, but exactly anti-phase. What would the output be?
Double
In an NPN transistor the P is the?
Base
A silicon diode, when compared to a germanium diode has a higher what?
Forward bias voltage
In an integrated circuit, the components are mounted by?
By means of wires connecting them
A Zener diode does what?
Stabilises voltage at predetermined level
When removing a microprocessor?
Considerable damage can be done by static discharge
A thyristor is commonly used for?
Voltage regulation
What happens to the resistance when a thyristor is switched off?
High resistance
In a PNP transistor, which way does conventional current flow?
Emitter to collector
What type of material contains 5 electrons in its outer shell?
N type material
A differential synchro rotor has how many windings?
Three windings
