← MeoMock / Written exams
Class 2 (2nd Engineer) MEKG 📅 Jan 2017

Exam Question

With reference to electro-hydraulic steering gears:

(a) Explain in terms of control parlance the function of the "Hunting gear"

(b) Explain the consequences if the standby pumping unit is motored;

(c) State TWO methods employed to prevent the standby hydraulic pump being motored by the opearting unit

Exam question diagramExam question diagramExam question diagramExam question diagram

Reference Answer

(a) Function of Hunting Gear:
The hunting gear in an electro-hydraulic steering system acts as a feedback controller responsible for maintaining the rudder's position. It achieves this by continuously comparing the desired rudder position (setpoint) received from the wheelhouse with the actual rudder position.
In control parlance, it operates as a closed-loop control system with the following functions:
The hunting gear receives two input signals: The desired rudder position (set by the wheelhouse control) and The actual rudder position (measured by the rudder’s current position). It compares these signals to detect any error or difference.

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