Basic Aircraft Maintenance Training Quiz

What is the primary function of semiconductors?

• To conduct electricity without resistance

• To store electrical energy

• To act as insulators

• To control electrical current

Which material is commonly used as a semiconductor?

• Copper

• Iron

• Silicon

• Aluminum

What is the effect of temperature on semiconductor conductivity?

• It decreases conductivity

• It has no effect

• It increases conductivity

• It makes them insulators

What type of semiconductor is created by doping silicon with phosphorus?

• Extrinsic

• Intrinsic

• N-type

• P-type

What is the voltage drop across a silicon diode when forward biased?

• 1.5 volts

• 1.0 volts

• 0.7 volts

• 0.3 volts

What is the primary characteristic of a diode?

• It allows current to flow in both directions

• It allows current to flow in one direction

• It amplifies electrical signals

• It stores electrical energy

What is the role of majority carriers in N-type semiconductors?

• Holes

• Free electrons

• Protons

• Neutrons

What happens at the PN junction when a diode is reverse biased?

• The diode conducts

• The depletion zone widens

• Current flows freely

• The diode becomes a short circuit

What is the primary use of a transistor?

• To rectify AC to DC

• To amplify signals

• To store energy

• To insulate circuits

What are the two types of bipolar junction transistors?

• NPN and PNP

• PNP and FET

• NPN and MOSFET

• FET and SCR