11461775
Descrição
Quiz por Jesús Nieto Domínguez, atualizado more than 1 year ago
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Criado por Jesús Nieto Domínguez
mais de 6 anos atrás
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Questão 1
Questão
The "Bourdon tube" is used to measure:
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temperature.
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fuel flow.
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vibrations.
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pressure.
Questão 2
Questão
The pressure probe used to measure the pressure of a low
pressure fuel pump is:
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a Bourdon tube.
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a bellows sensor.
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an aneroid capsule.
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a differential capsule.
Questão 3
Questão
The probe used to measure the air intake pressure of a gas turbine
engined powerplant is:
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an aneroid capsule.
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a differential capsule.
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a Bourdon tube.
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a bellows sensor.
Questão 4
Questão
Different pressure sensors are used according to the intensity
of the pressure measured (low, medium or high). Classify
the following sensors by order of increasing pressure
for which they are suitable:
1) bellows type
2) Bourdon tube type
3) aneroid capsule type
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3,1,2
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1,2,3
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3,2,1
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2,1,3
Questão 5
Questão
A "Bourdon tube" is used in:
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vibration detectors.
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pressure sensors.
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smoke detectors.
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turbine temperature probes.
Questão 6
Questão
The engine instrument utilising an aneroid pressure
diaphragm is the:
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oil pressure gauge.
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manifold pressure gauge.
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fuel pressure gauge.
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oil temperature gauge.
Questão 7
Questão
If a manifold pressure gauge consistently registers atmospheric
pressure, the cause is probably:
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ice in induction system.
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too high float level.
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fuel of too low volatility.
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leak in pressure gauge line.
Questão 8
Questão
A manifold pressure gauge of a piston engine measures
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fuel pressure leaving the carburettor.
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vacuum in the carburettor.
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absolute pressure in intake system near the inlet valve.
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absolute air pressure entering the carburettor.
Questão 9
Questão
An aneroid capsule:
1) measures differential pressure
2) measures absolute pressure
3) is used for low pressure measurement
4) is used for very high pressure measurement
The combination regrouping all the correct statements is:
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1, 3
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2, 3
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2, 4
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1, 4
Questão 10
Questão
On Ale with a fuel pressure gauge, where is the pressure
normally measured?
(Aircraft with fuel injection)
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Tank outlet.
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Selector valve outlet.
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At the injection nozzles.
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Inlet of the fuel injection metering unit.
Questão 11
Questão
Absolute pressure is:
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the difference between two pressures.
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the amount the pressure has been raised with reference to an initial level.
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measured from zero pressure (vacuum).
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pressure in a confined area.
Questão 12
Questão
A thermocouple can be made of:
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a single wire coil.
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two metal conductors of the same nature fixed together at two points.
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a three wire coil.
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two metal conductors of different nature fixed together at two points.
Questão 13
Questão
The temperature measured by the CHT (Cylinder Head Temperature)
probe is the:
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temperature of the exhaust gases.
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average temperature within the whole set of cylinders.
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temperature within the hottest cylinder, depending on its position in the engine block.
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temperature of the carburettor to be monitored when the outside air temperature is between -5°C and 10°C.
Questão 14
Questão
To permit turbine exit temperatures to be measured,
gas turbines are equipped with thermometers which work
on the following principle:
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bi-metallic strip.
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thermocouple.
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liquid expansion.
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gas pressure.
Questão 15
Questão
A millivoltmeter measuring the electromotive force between
the "hot junction" and the "cold junction" of a thermocouple
can be directly graduated in temperature values provided
that the temperature of the:
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hot junction is maintained constant.
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cold junction is maintained constant.
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cold junction is maintained at 15°C.
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hot junction is maintained at 15°C.
Questão 16
Questão
The main advantage of a ratiometer-type temperature
indicator is that it:
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carries out a measurement independent of the supply. voltage.
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can operate without an electrical power supply.
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is very accurate.
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is very simple.
Questão 17
Questão
The measurement of the turbine temperature or of the EGT
is carried out at the:
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intake of the high pressure chamber.
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outlet of the combustion chamber.
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inlet of the combustion chamber.
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outlet of the high pressure stage of the turbine.
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