Instrumentation 2

the disavnatges of a single phase AC generator tachometer are:

1) the presence of spurious signals due to a DC generator commutator

2) teh importance if line resistance on the information value 

3) teh influence of temperature on the tachometer information 

The operating principle of an electronic tachometer is to measure the:

The electronic tachometer sensor is composed of:

The varoius type of tachometers are:

A three phase electrical tachometers utilises a generator feeding: 

the signal supplied by a transmitter fitted with a magnetic sensor, connected to an RPM indiator is:

Gas turbine engine rotational speed (RPM) is usually sensed using either 

The operating principle of the electrical type of tachometers is to measure the:

a vibration indicator receives a signal from differet sensors (accelerometers). It indicates the:

the principle of detedtcion of a vibration monitoring system is based on the use of:

the output from an engine vibration transducer is:

a synchroscope is used on aircraft to:

teh operating principle of an oil torque meter?

1) axial movement is generated by the helically cut gears 

2) axial force is proportional to the torque

engine torque may be expressed in the following units 

the operating principle of an electronic torque meter is:

Trque can be determined by measuring the:

Concerning teh pitot and static system, teh static pressure error varies according to:

1) altimeter setting

2) aircraft speed

3) AoA 

the static pressure at Mean Sea Level (MSL) an ISA conditions is 1013,25 hPa or:

TAT is:

teh SAT is:

the probes used for RAT measurements have a recovery factory of xy to xy, while the probes used for TAT measurements habe a recover yfactory of around xxxx?

RAT ?

the recovery factor of a flush bulb temperature sensor generally varies from ? 

The SAT is ?

the airplane outside air temperature probe measures the : 

TAT ausrechen mit recovery factor ?

the TAT is 

a temperature sensor has a recovery factor of 0.95% The temeprature measured is equal to:

The pressure altitude is teh altitude corresponsing: 

At sea level on a typical servo altimeter, the tolerance in feet from indicated is:

The purpose of the vibrating device of an altimeter is to:

The altimeter is subject to sttaic pressure error. This errorvarries according to:

the altimeter consists of one or several aeroid capsuel located in a sealed caing. The pressure in teh aneroid capsuel (1) and casing (2) are respectively

The primary factor which makes teh servo-assisted altimeter more accurate than the smple pressure altimeter is teh use of:

A servo assisted altimeter is more accurate than a simple altimeter because the small movements of: 

When the barometric subscale of teh altimeter is adjusted to 113.2 hPa, what type of altitude is being measured?

At a given altiude, the hysteresis error of an altimeter varies substantially with the:

If the pilot increases the referenve pressure using the sub-scale setting knob, the altitude indicated by the altimeter 

VSI tolerances 1 and 2 ?

How does lag error in an Instantaneous VSU (IVSI) compare to that in a normal VSI?