NABCEP System Maintenance

Question 1

What is a common sign of reduced solar system performance?

Accepted Answer

Reduced energy production

Answer

Increased brightness

Answer

Higher output

Answer

Louder inverter noise

Question 2

Why is regular inspection of wiring important?

Accepted Answer

To identify wear or damage

Answer

To meet warranty

Answer

To increase voltage

Answer

To clean it

Question 3

Which tool is used to check system voltage?

Accepted Answer

Multimeter

Answer

Hammer

Answer

Cable cutter

Answer

Drill

Question 4

How often should panels be cleaned in dusty areas?

Accepted Answer

As needed, based on buildup

Answer

Every 2 years

Answer

Every week

Answer

Never

Question 5

What can cause inverter errors?

Accepted Answer

Wet panels

Answer

Too much shade

Answer

Overvoltage or wiring issues

Answer

Cold weather

Question 6

What is a combiner box?

Accepted Answer

String output aggregator

Answer

Battery box

Answer

Connection between grid and inverter

Answer

Cooling device

Question 7

How can shading issues be diagnosed?

Accepted Answer

Wattmeter

Answer

Solar pathfinder

Answer

IV curve tracer

Answer

Labeling tool

Question 8

Which component may require firmware updates?

Accepted Answer

Inverter

Answer

Mounting rails

Answer

Solar panels

Answer

Glass

Question 9

How should maintenance be documented?

Accepted Answer

In maintenance log

Answer

Verbally

Answer

With photos only

Answer

On whiteboard