BASIC METERS

A CONTINUITY TEST is accomplished with an ohmmeter. This test is used to check for opens (orto see if the circuit is complete or continuous).GROUNDED CIRCUITS are caused by some conducting part of the circuit making contact eitherdirectly or indirectly with the metallic structure of the ship or chassis. In testing for grounds, you may useeither an ohmmeter or a megger.A SHORT CIRCUIT, other than a grounded one, is where two conductors touch each other directlyor through another conducting element. An ohmmeter is used to test for shorts.ANSWERS TO QUESTIONS Q1. THROUGH Q29.A-1. Self-excited.A-2. Phosphor bronze ribbons.A-3. The pointer arrangement and the light and mirror arrangement.A-4. Coil balance.A-5. Hairspring.A-6. Hairspring.A-7. Makes it possible to have a more linear scale than if the poles were flat.A-8. Shunt.A-9. Zero-temperature coefficient.A-10. Midscale.A-11. In series.A-12. Negative, positive.3-33