Class 4 (4th Engineer) SC&S 📅 Sep 2023

Exam Question

The pitch of a propeller is measured by means of a batten and cord. The horizontal ordinate is found to be 40 cm while the vertical ordinate 1.15 m at a distance of 2.6 m from the centre of the boss. Calculate the pitch of the propeller and the blade width at that point. (16)

Reference Answer

### **Objective**
To determine the geometric pitch and the local blade width of a propeller at a specified radius using field measurements obtained with a batten and cord.
### **Principle of Measurement**
The measurement of propeller pitch using this method relies on creating a right-angled triangle at a specific radius on the propeller blade.

Full answer on MeoMock — surveyor-grade reference answers for 7,000+ written exam questions.

View plans Browse library

← Browse more questions

Prepare on Android — MeoMock on Google Play