Block IV Study Guide

Front

What is the primary instrument to monitor immediately after fuel flow during the starting sequence of a turbine engine?

Back

EGT gauge (Exhaust Gas Temperature gauge) is used to monitor the temperature of the exhaust gases and is critical for engine performance and safety.

Front

What type of switch uses incandescent or LED bulbs to indicate its function?

Back

Lighted pushbutton switches are designed with built-in bulbs that illuminate to show the switch's status.

Front

What is the Vernier scale graduation on a micrometer?

Back

0.0001 inches is the smallest measurement increment that can be read on a micrometer using the Vernier scale.

Front

What is the most common fire extinguisher used in flight?

Back

CO2 (Carbon Dioxide) fire extinguishers are commonly used in aviation due to their effectiveness in suppressing fires without leaving residue.

Front

What does it mean when voltage and current pass through zero and reach maximum value at the same moment?

Back

This condition is referred to as 'In-phase', indicating that the voltage and current waveforms are synchronized.

Front

What is the purpose of an oil pressure gauge in a turbine engine?

Back

The oil pressure gauge monitors the pressure of the oil circulating in the engine, which is crucial for lubrication and cooling.

Front

What is the function of a fuel pressure gauge?

Back

A fuel pressure gauge measures the pressure of the fuel being delivered to the engine, ensuring proper fuel flow for combustion.

Front

What is the significance of the N1 gauge in turbine engines?

Back

The N1 gauge indicates the speed of the low-pressure compressor, which is essential for monitoring engine performance.

Front

What is Halon used for in aviation?

Back

Halon is a fire suppression agent commonly used in aircraft fire extinguishers due to its effectiveness in extinguishing fires without damaging sensitive equipment.

Front

What is the difference between in-phase and out-of-phase signals?

Back

In-phase signals reach their maximum and minimum values simultaneously, while out-of-phase signals reach their maximum and minimum values at different times.