4. Propulsion

Propulsion Testing — Quiz

Test your understanding of propulsion testing with 5 practice questions.

Practice Questions

Question 1

Which calibration method adjusts instrumentation response at both zero and full-scale input points to ensure linear accuracy?

Question 2

Which sensor type is best suited to measure rapid dynamic pressure changes in a turbine engine test cell?

Question 3

A strain-gauge load cell outputs 0 mV at 0 N and 4.0 mV at 5000 N. During a test it measures 3.5 mV. What thrust does this correspond to? Show your calculation.

Question 4

A K-type thermocouple has a sensitivity of 41\,$\mu$$\mathrm{V/°C}$. If it produces 2.05\,$\mathrm{mV}$ during an engine run, what temperature rise does this represent? Show your calculation.

Question 5

Why must inlet air temperature and pressure be held constant in an engine test cell?