B2OCT23B74

Why is it essential to calibrate equipment used in airborne avionics maintenance?

• To ensure it matches the manufacturer's recommendation.

• To verify the equipment is in good condition.

• To guarantee equipment safety.

• All of the above.

Before using test equipment, technicians should ensure:

• It is within its service life.

• It has been used less than ten times.

• It matches the manufacturer's recommendation or its equivalent.

• It has been approved by a supervisor.

The industry standard for calibration intervals is typically:

• 6 months.

• 1 year.

• 2 years.

• It varies depending on the equipment.

What do logic circuits primarily have?

• Multiple states including on, off, and neutral.

• Only one state which is on.

• Two states: high or low.

• Four states: high, low, medium, and off.

What is a primary use of a logic probe in troubleshooting digital integrated logic circuits?

• To detect changes in temperature.

• To compare with a known functional IC

• To simplify troubleshooting of logic levels in digital circuits.

• To measure resistance.

Ideal characteristics of a logic probe include:

• Heavyweight.

• Detects steady logic levels.

• Requires external power source.

• Can only detect low-speed transient pulses.

What does a red LED indicate on a basic logic probe?

• Low

• Open

• High

• Pulse

Pins 7, 8, 9, 12, and 13 of the CD4011 IC are connected to:

• The positive supply rail.

• The ground.

• The negative supply rail.

• An external battery.

An oscilloscope is primarily used to:

• Measure resistance of electrical signals.

• Analyze audio frequencies.

• Display the shape of video pulses at test points.

• Convert electrical signals to mechanical movements.

Understanding one oscilloscope helps in understanding others because:

• All oscilloscopes have the same size and weight.

• All oscilloscopes operate fundamentally the same way.

• All oscilloscopes are made by the same manufacturer.

• All oscilloscopes have the same price.