Exam Question
(a) Sketch, the circuit diagram of an instrument used for measuring electrical insulation resistance. (8)
(b) Describe the circuit diagram sketched in (a), explaining how it operates when measuring electrical insulation resistance. (8)
Class 4 (4th Engineer)
MET
📅 Sep 2024
Reference Answer
### (a) Sketch of Insulation Resistance Tester (Megger)
A circuit diagram for a moving-coil type insulation resistance tester is required. The sketch should clearly label the following components:
1. **Hand-Cranked DC Generator:** The high-voltage source.
2. **Permanent Magnet:** Provides the magnetic field for the meter movement.
A circuit diagram for a moving-coil type insulation resistance tester is required. The sketch should clearly label the following components:
1. **Hand-Cranked DC Generator:** The high-voltage source.
2. **Permanent Magnet:** Provides the magnetic field for the meter movement.
Full answer on MeoMock — surveyor-grade reference answers for 7,000+ written exam questions.
Prepare on Android — MeoMock on Google Play