EES 102 Week 07 Test Summer 2023

The neutral wire connected to the 120 VAC shore line power should be ungrounded

• in all 120 VAC RV wiring

• only in RV’s employing more than 3 or more branch circuits

• only when 30 amp service is used

• only in “Class A” motorhomes

How does an RV get an earth ground?

• from the tires on the ground

• from shoreline attached to pedestal

• from buss bar in distribution panel

• from grounding RV chassis

On a motorhome with a 50-amp power supply cord, the total AC amp capacity available to that coach would be

• 50 amps

• 100 amps

• dependent on the number of circuits

• dependent on the length of the cord

A 50 amp shore power outlet has how many watts of power?

• 3,000

• 3,600

• 5,500

• 12,000

When replacing a distribution panelboard, what electrical cabling is typically used on the AC side?

• Service junior (SJ) wire

• Romex or nm electrical cable

• stranded

• extension cord

While troubleshooting an intermittent voltage drop on the AC system, a possible cause is

• a loose or faulty connection in the distribution panel

• improper wire size

• intermittent converter output

• incorrect generator frequency

If a customer complains of low voltage at the AC panel, the technician should FIRST

• recalibrate his/her meter

• check voltage at the pedestal

• check the polarity indicator

• replace the overcurrent protection device

A technician needs to install a 13,500 BTU/hr air conditioner. What is the minimum gauge of non-metallic sheathed cable required?

• 14/3

• 12/3

• 14/2

• 12/2

All of the following can be causes of low voltage conditions EXCEPT

• undersized conductor

• bad connections

• undersized overcurrent protection

• discharged batteries

A voltmeter must always be connected

• in series with the source

• on the positive side

• in parallel with the circuit or load

• in relationship to the component