VIRGINIA VA ALTERNATIVE ENERGY SYSTEM (AES)
CONTRACTING EXAM 2026/2027 QUESTIONS AND
DETAILED SOLUTIONS|JUST RELEASED!1PDF
Question 1: What is the primary function of a photovoltaic
cell in a solar energy system?
Option A: Convert sunlight into electricity
Option B: Store electrical energy
Option C: Regulate current flow
Option D: Step-up voltage - ANSWER-Correct Answer: A -
Convert sunlight into electricity
,Explanation: Photovoltaic cells convert sunlight directly
into electrical energy via the photovoltaic effect.
Question 84: What is the significance of a "warranty
period" for PV modules?
Option A: It indicates the module's maximum power output
Option B: It assures performance and replacement for a
set number of years Option C: It determines the module's
efficiency
Option D: It sets the installation cost - ANSWER-Correct
Answer: B - It assures performance and replacement for a
set number of years
,Explanation: A warranty period guarantees that the module
will perform to specified standards and provides recourse
if performance declines excessively
Question 85: Which measurement unit is used to express
the amount of sunlight a location receives?
Option A: Lux
Option B: Watts per square meter (W/m²)
Option C: Joules
Option D: Amperes - ANSWER-Correct Answer: B - Watts
per square meter (W/m²)
, Explanation: Solar irradiance is measured in watts per
square meter, which indicates the solar power received
per unit area.
Question 86: Which aspect of electrical theory is
fundamental when designing PV wiring circuits?
Option A: Electromagnetic induction
Option B: Ohm's Law
Option C: Capacitance theory
Option D: Quantum mechanics - ANSWER-Correct
Answer: B - Ohm's Law
CONTRACTING EXAM 2026/2027 QUESTIONS AND
DETAILED SOLUTIONS|JUST RELEASED!1PDF
Question 1: What is the primary function of a photovoltaic
cell in a solar energy system?
Option A: Convert sunlight into electricity
Option B: Store electrical energy
Option C: Regulate current flow
Option D: Step-up voltage - ANSWER-Correct Answer: A -
Convert sunlight into electricity
,Explanation: Photovoltaic cells convert sunlight directly
into electrical energy via the photovoltaic effect.
Question 84: What is the significance of a "warranty
period" for PV modules?
Option A: It indicates the module's maximum power output
Option B: It assures performance and replacement for a
set number of years Option C: It determines the module's
efficiency
Option D: It sets the installation cost - ANSWER-Correct
Answer: B - It assures performance and replacement for a
set number of years
,Explanation: A warranty period guarantees that the module
will perform to specified standards and provides recourse
if performance declines excessively
Question 85: Which measurement unit is used to express
the amount of sunlight a location receives?
Option A: Lux
Option B: Watts per square meter (W/m²)
Option C: Joules
Option D: Amperes - ANSWER-Correct Answer: B - Watts
per square meter (W/m²)
, Explanation: Solar irradiance is measured in watts per
square meter, which indicates the solar power received
per unit area.
Question 86: Which aspect of electrical theory is
fundamental when designing PV wiring circuits?
Option A: Electromagnetic induction
Option B: Ohm's Law
Option C: Capacitance theory
Option D: Quantum mechanics - ANSWER-Correct
Answer: B - Ohm's Law
