022.01 Sensors and Instruments Flashcards
A magnet rotor is used in a(n) (mechanical/electric/electronic) tachometer.
A magnet rotor is used in a(n) (electric) tachometer.
A(n) (fuel pressure/manifold pressure/oil pressure) gauge utilises an aneroid pressure diaphragm.
A(n) (manifold pressure) gauge utilises an aneroid pressure diaphragm.
(both bellows and aneroid → manifold)
In order to measure Cylinder Head Temperature, a (…) is used.
In order to measure Cylinder Head Temperature, a (thermocouple) is used.
A vibration indicator indicates vibration (frequency/amplitude/period)
A vibration indicator indicates vibration (amplitude) at a given frequency.
T°C ⇔ T°F
T°F = T°C • 1.8 + 32
T°C = (T°F - 32) ÷ 1.8
An electronic torque meter uses (helical cut gears/rotation speed/twisting of the shaft) to measure torque.
An electronic torque meter uses (twisting of the shaft) to measure torque.
A Bourdon tube is mostly used to measure (low/medium/high) pressure.
A Bourdon tube is mostly used to measure (high) pressure.
An aneroid capsule is mostly used to measure (low/medium/high) pressure.
An aneroid capsule is mostly used to measure (low) pressure.
N1 is the rotational speed of the (…).
N1 is the rotational speed of the (low pressure shaft or fan).
A(n) (fuel pressure/manifold pressure/oil pressure) gauge utilises a bellows sensor.
A(n) (manifold pressure) gauge utilises a bellows sensor.
(both bellows and aneroid → manifold)
In response to a temperature rise, a thermo-couple increases its (current/voltage/resistance/length).
In response to a temperature rise, a thermo-couple increases its (voltage).
An electrical torque meter uses (helical cut gears/rotation speed/twisting of the shaft) to measure torque.
An electrical torque meter uses (rotation speed) to measure torque.
An oil torque meter uses (helical cut gears/rotation speed/twisting of the shaft) to measure torque.
An oil torque meter uses (helical cut gears) to measure torque.
On an airplane with two engines installed, a synchroscope works on the basis of a (galvanometer/voltmeter/ammeter) which is fed by two (alternators/tachometer-gennies).
On an airplane with two engines installed, a synchroscope works on the basis of a (voltmeter) which is fed by two (tachometer-gennies).
Hydraulic pressure is sensed by a (Bourdon tube/diaphragm/aneroid capsule/transducer)
Hydraulic pressure is sensed by a (diaphragm) that receives a hydraulic signal from the accumulator.
The gauge indicating the quantity of fuel measured by a capacity gauging system can be graduated directly in weight unites because the dielectric constant of fuel is (the same as/twice) that of air and varies (directly/inversely) with density.
The gauge indicating the quantity of fuel measured by a capacity gauging system can be graduated directly in weight unites because the dielectric constant of fuel is (twice) that of air and varies (directly) with density.
The white sector of the arc of a temperature gauge corresponds to a (…) operating range.
The white sector of the arc of a temperature gauge corresponds to a (special) operating range.
Engine Pressure Ratio
EPR = Engine Pressure Ratio
The reference of master engine of a synchroscope is usually the (inner/outer) (left/right) engine.
The reference of master engine of a synchroscope is usually the (outer) (left) engine.
Brake Horse Power
BHP = T • RPM • constant
BHP ~ T • RPM (~ = proportional)
- BHP = Brake Horse Power*
- T = Torque [Nm]*
- RPM = Revolutions per minute*
Moment
M = F • a
- M = moment [Nm]*
- F = force [N]*
- a = arm [m]*
A magnetic sensor is used in a(n) (mechanical/electric/electronic) tachometer.
A magnetic sensor is used in a(n) (electronic) tachometer.
Capacitance
- C = capacitance [F] (Farads)*
- q = charge [coulomb]*
- U = voltage [V]*
- e = dielectric permittivity [F/m] (Farads per meter)*
- A = area of plates [m2]*
- d = distance between plates [m]*
Torque can be determined by measuring the change in (phase/frequency) between the torque shaft and the reference shaft.
Torque can be determined by measuring the change in (phase) between the torque shaft and the reference shaft.
- E = electromotive force (emf)*
- Tc = cold junction temperature*
- Th = hot junction temperature*
- K = constant*
The relationship that applies to a thermocouple is (…).
- E = electromotive force (emf)*
- Tc = cold junction temperature*
- Th = hot junction temperature*
- K = constant*
The relationship that applies to a thermocouple is (E = K • Th).
Work and power
P = T • Ω
P = T • n
P = work done/time
- P = power [W]*
- T = torque [Nm]*
- Ω = angular velocity [radians/s]*
- n = RPM*
A bellows sensor is mostly used to measure (low/medium/high) pressure.
A bellows sensor is mostly used to measure (medium) pressure.
