Gyroscopic Instrument Quiz & Flashcards

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Questions and Answers

What does an Oil Temperature Gauge measure?

Exhaust gas temperature

Engine temperature (correct)

Ambient air temperature

Cylinder temperature

Which instrument is calibrated in degrees Celsius or Fahrenheit?

Fuel Flow Meter

Ammeter

Manifold Pressure Gauge

Cylinder Head Temperature Gauge (correct)

What does a Suction Gauge indicate?

Fuel quantity

Pressure created by the vacuum pump (correct)

Exhaust gas temperature

Manifold pressure

Which instrument measures the gases at the exhaust manifold?

Exhaust Gas Temperature Gauge Signup and view all the answers

What does a Manifold Pressure Gauge indicate?

Fuel/air mixture pressure in cylinders Signup and view all the answers

What type of display is used in an Electronic Flight Instrument System (EFIS)?

Digital display Signup and view all the answers

What is the principle of rigidity in space for a gyroscope?

It remains in a fixed position in the plane in which it is spinning. Signup and view all the answers

What does precession refer to in relation to a gyroscope?

Turning and tilting in response to pressure. Signup and view all the answers

What is the purpose of the Earth's magnetism in relation to compass errors?

Causing variation between true and magnetic poles. Signup and view all the answers

What system can be used to operate an attitude indicator in a gyroscope?

Vacuum or Suction System Signup and view all the answers

Which of the following is NOT a component of a heading indicator on a gyroscopic instrument?

Slip and Skid Signup and view all the answers

What does magnetic dip refer to?

The tendency of the bar magnet in a compass to point to the north and somewhat downward Signup and view all the answers

What is the main purpose of a tachometer in an aircraft?

To display the revolutions per minute of the aircraft engine Signup and view all the answers

What does the oil pressure gauge provide direct indication of?

Oil system operation pressure in psi Signup and view all the answers

Which gauge ensures that the engine remains reliable throughout its lifetime?

Oil Pressure Gauge Signup and view all the answers

In which situation would you observe magnetic dip to be greatest?

Near the poles Signup and view all the answers

What is the normal operating range indicated by a tachometer?

Green Signup and view all the answers

Study Notes

Gyroscopic Instrument

A gyroscope is a device consisting of a spinning mass, typically a disk or wheel, mounted on a base so that its axis can turn freely in one or more directions.
The gyroscope maintains its orientation regardless of any movement of the base due to its rigidity in space.

Attitude Indicator

Is a gyroscopic instrument that indicates the orientation of the aircraft relative to the horizon.
Components include:
Miniature plane (level index)
Turn index (inclinometer)
Bank scale
Artificial horizon
Adjustment knob

Heading Indicator

Also known as a magnetic compass, it is one of the oldest and simplest instruments for indicating direction.
The compass is affected by the Earth's magnetism, which can cause errors.
Compass errors include:
Variation (angular difference between true and magnetic poles)
Deviation (magnets in a compass align with any magnetic field)
Magnetic dip (bar magnet contained in the compass is pulled by the earth's magnetic field)
Acceleration error
Turning error

Engine Instruments

Provide the pilot with information about the health of the engine and its performance during flight.
Instruments include:
Oil Temperature Gauge (measures temperature of oil)
Cylinder Head Temperature Gauge (indicates direct and immediate cylinder temperature change)
Outside Air Temperature Gauge (records ambient air temperature)
Manifold Pressure Gauge (indicates pressure of fuel/air mixture in engine intake manifold)
Exhaust Gas Temperature Gauge (measures temperature of gases at exhaust manifold)
Fuel Quantity Gauge
Fuel Flow Meter
Suction Gauge (shows pressure created by vacuum pump)
Ammeter (measures electrical current)

Electronic Flight Instrument System (EFIS)

Any flight instrument display that utilizes LCD or picture tube like displays.
Also known as Electronic Integrated Display Instrumentation or "Glass Cockpit".
EFIS installations vary greatly.

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Description

Test your knowledge on the fundamentals of gyroscopic instruments, including the concepts of gyroscope, rigidity in space, and precession. Learn about vacuum or suction system and venturi tube system.