NABCEP PV Associate (PVA) — Practice Exam
Installation: storage: practice questions
Our NABCEP PV Associate bank has 6 questions on this topic. Here are 4 of them with answers; the full mock exam draws from every topic, like the real one.
Question 1
Why must energy storage systems be labeled?
- To show the price
- Labels are not required
- To warn of stored energy hazards and identify disconnects for responders
- To list the customer's name and the price of the battery system
Show the answer
C. To warn of stored energy hazards and identify disconnects for responders — Labeling and marking requirements apply to storage.
Question 2
Why do flooded lead-acid batteries need ventilation?
- Ventilation increases capacity
- It is required only in winter
- They release hydrogen gas while charging
- They overheat without airflow at night, when the charger is off
Show the answer
C. They release hydrogen gas while charging — VRLA and lithium batteries release little or no gas in normal use.
Question 3
What is the purpose of battery temperature compensation in a charge controller?
- Lowering the array voltage
- Adjusting charge voltage for battery temperature to avoid over- or undercharging
- Heating the battery in cold weather so it can accept a full charge
- Measuring module temperature
Show the answer
B. Adjusting charge voltage for battery temperature to avoid over- or undercharging — Cold batteries need higher regulation voltage, warm ones lower.
Question 4
Why are lead-acid batteries placed on racks or trays rather than directly on concrete?
- Concrete drains the battery's charge
- To contain spilled electrolyte and allow inspection
- It is only for appearance
- Concrete floors drain the battery's charge over time
Show the answer
B. To contain spilled electrolyte and allow inspection — Racks support batteries and contain electrolyte.