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