Author Question: When using a three-port manifold, the vacuum pump should be connected to: A) The suction line ... (Read 98 times)

karlynnae · **on:** Jul 24, 2018

When using a three-port manifold, the vacuum pump should be connected to:

A) The suction line service valve.
B) The evaporator coil, only if the Schrader value has been removed.
C) The compressor.
D) The middle port of a standard three-port manifold.

Question 2

How can the magnetism produced by a flowing electrical current be intensified enough to produce useful work?

A) Pass the magnetic field through a magnetic force field amplifier.
B) Reduce the amount of current traveling through the wire.
C) Coil the conductor around a core of soft iron or steel.
D) Use a conductor with a current gap to create higher current levels.