Note. - Refer to the lesson exercise instructions given in lesson 1.
Three-phase, 220/440-volt, 60-hertz power is supplied to the test stand from
an external source. Where, on the test stand, is the service entrance for
this power located?
There are four 6-volt batteries being used in a particular test stand. How
should they be interconnected?
What is the running speed (RPM) of the varidrive motor?
RECT GEN, BAT, EXT, and VAR DC SUPPLY are the four positions of the circuit
selector switch of which meter?
Field and battery charger DC ammeter
Which are the two positions of the tachometer circuit selector switch?
0-5,000 RPM; 0-12,000 RPM
DIRECT DRIVE; CAL PULLEY
HIGH SPEED HEAD; LOW SPEED HEAD
Which meter circuit selector switch should be set to the OFF position when
the meter is not in use?
You are checking the specific gravity of a battery with a hydrometer. The
electrolyte temperature is 850 F. What should the hydrometer reading be if
the battery is fully charged?
Each test stand meter has an associated set of calibrating binding posts or a
calibrating Jack. How are these posts/Jacks used?
To compare the test stands measuring circuits with certified standards of
To calibrate meters associated with generators, alternators, control
boxes, and AC/DC systems under test
To self-check the monitoring systems during preoperational checks using
the 0-32 VDC power supply as a source
OS 010, 3-P33