ENGINE INSTRUMENT PART 2

The engine pressure ratio (EPR) is a ratio of the. exhaust gas pressure to the engine inlet air pressure and indicates the thrust produced. exhaust gas pressure to the engine inlet air pressure and indicates volumetric efficiency. exhaust gas pressure to the engine exhaust pressure and indicates the thrust produced.

Engine pressure ratio is the total pressure ratio between the. aft end of the compressor and the aft end of the turbine. front of the compressor and the rear of the turbine. front of the engine inlet and the aft end of the compressor.

The fuel flow indication data sent from motor driven impeller and turbine, and motorless type fuel flow transmitters is a measure of. fuel mass flow. fuel volume flow. engine burner pressure drop.

What does the blue arc on a cylinder head temperature (CHT) gauge represent?. The range within which operation is permitted in auto-lean. The desired operating range on a twin-engine aircraft when operating on one engine. The range within which operation must be in auto-rich.

The engine pressure ratio (EPR) indicator is a direct indication of. engine thrust being produced. pressure ratio between the front and aft end of the compressor. ratio of engine RPM to compressor pressure.

An electronic system that monitors engine and airframe parameters and does not utilize traditional engine gauges, is called. an electronic flight instrument system (EFIS) display. a flight management system (FMS). an engine indicating and crew alerting system (EICAS).

The principle fault in the pressure type fuel flowmeter indicating system, installed on a horizontally opposed continuous-flow fuel injected aircraft reciprocating engine, is that a plugged fuel injection nozzle will cause a. normal operation indication. lower-than-normal fuel flow indication. higher-than-normal fuel flow indication.

What unit in a tachometer system sends information to the indicator?. The three-phase ac generator. The two-phase ac generator. The synchronous motor.

What would be the possible cause if a gas turbine engine has high exhaust gas temperature, high fuel flow, and low RPM at all engine power settings?. Fuel control out of adjustment. Loose or corroded thermocouple probes for the EGT indicator. Turbine damage or loss of turbine efficiency.

If the thermocouple leads were inadvertently crossed at installation, what would the cylinder temperature gauge pointer indicate?. Normal temperature for prevailing condition. Moves off-scale on the zero side of the meter. Moves off-scale on the high side of the meter.

What instrument indicates the thrust of a gas turbine engine?. Exhaust gas temperature indicator. Turbine inlet temperature indicator. Engine pressure ratio indicator.

Instruments that measure relatively high fluid pressures, such as oil pressure gauges, are usually what type?. Vane with calibrated spring. Bourdon tube. Diaphragm or bellows.

In what units are turbine engine tachometers calibrated?. Percent of engine RPM. Actual engine RPM. Percent of engine pressure ratio.

Which of the following is a primary engine instrument?. Tachometer. Fuel flowmeter. Airspeed indicator.

The RPM indication of a synchronous AC motor-tachometer is governed by the generator. voltage. current. frequency.

The thermocouple leads used to measure cylinder temperature on an aircraft reciprocating engine. should be cut and trimmed to fit if the lead is too long. are connected to the electrical wiring on one end and the cylinder on the other end. connected to the cylinder can only be bayonet type.

In an aircraft equipped with a pressure-drop type fuel flow indicating system, if one of the injector nozzles becomes restricted, this would cause a decrease in fuel flow with. a decreased fuel flow indication on the gauge. an increased fuel flow indication on the gauge. no change in fuel flow indication on the gauge.

A red triangle, dot, or diamond mark on an engine instrument face or glass indicates. the maximum operating limit for all normal operations. the maximum limit for high transients such as starting. a restricted operating range.

Which statement is correct concerning a thermocouple-type temperature indicating instrument system?. It is a balanced-type, variable resistor circuit. It requires no external power source. It usually contains a balancing circuit in the instrument case to prevent fluctuations of the system voltage from affecting the temperature reading.

In addition to fuel quantity, a computerized fuel system (CFS) with a totalizer-indicator provides indication of how many of the following? 1. Fuel flow rate. 2. Fuel used since reset or initial start-up. 3. Fuel time remaining at current power setting. 4. Fuel temperature. Two. Three. Four.

Engine pressure ratio is determined by. multiplying engine inlet total pressure by turbine outlet total pressure. dividing turbine outlet total pressure by engine inlet total pressure. dividing engine inlet total pressure by turbine outlet total pressure.

Instruments that provide readings of low or negative pressure, such as manifold pressure gauges, are usually what type?. Vane with calibrated spring. Bourdon tube. Diaphragm or bellows.

A change in engine manifold pressure has a direct effect on the. piston displacement. compression ratio. mean effective cylinder pressure.

In a turbine engine, where is the turbine discharge pressure indicator sensor located?. At the aft end of the compressor section. At a location in the exhaust cone that is determined to be subjected to the highest pressures. Immediately aft of the last turbine stage.

The EGT gauge used with reciprocating engines is primarily used to furnish temperature readings in order to. obtain the best mixture setting for fuel efficiency. obtain the best mixture setting for engine cooling. prevent engine overtemperature.

Which statement is true regarding a thermocouple-type cylinder head temperature measuring system?. The resistance required for cylinder head temperature indicators is measured in farads. The voltage output of a thermocouple system is determined by the temperature difference between the two ends of the thermocouple. When the master switch is turned on, a thermocouple indicator will move off-scale to the low side.

A manifold pressure gauge is designed to. intain constant pressure in the intake manifold. indicate differential pressure between the intake manifold and atmospheric pressure. indicate absolute pressure in the intake manifold.

Motor-driven impeller and turbine fuel flow transmitters are designed to transmit data. using aircraft electrical system power. mechanically. by fuel pressure.