Electrical Diagrams Quiz

What is the purpose of grounding systems in the diagrams?

• To increase voltage

• To provide safety

• To reduce cost

• To change color

What is the purpose of the DC disconnect in the stand-alone setup?

• To connect the inverter

• To disconnect the battery

• To control the charge

• To disconnect the PV

What is the configuration of a parallel connection in a PV system?

• Positive to negative

• Positive to positive and negative to negative

• Negative to positive

• Positive to ground

What is the term used to describe the ability of a conductor to carry current?

• Conductivity

• Resistance

• Ampacity

• Voltage

What advice is given about learning 3-phase power?

• It is easy to learn

• It takes a lifetime to learn

• It is not important

• It can be learned in a day

What is one third of a percent represented as?

• 0.1%/°C

• 0.2%/°C

• 0.33%/°C

• 0.5%/°C

What is the voltage of the module at -5°C in the practice problem?

• 30V

• 35V

• 40V

• 45V

What is the standard test condition (STC) temperature that must be memorized?

• 20°C

• 25°C

• 30°C

• 35°C

What should be done if the calculated step seems way off?

• Ignore it

• Use common sense to check and repeat the step

• Continue without changes

• Ask someone else to do it

What does common sense indicate if it gets colder than 25°C?

• Voltage decreases

• Voltage remains the same

• Voltage increases

• Voltage fluctuates