SE Engr. Solar Resource Assessment and Meteorology

Question 1

What is the standard unit of measurement for solar irradiance?

Accepted Answer

W/m²

Answer

kWh/m²

Answer

W/m³

Answer

kWh/kWp

Question 2

How is Global Horizontal Irradiance (GHI) mathematically defined?

Accepted Answer

DNI × cos(θz) + DHI

Answer

DNI + DHI

Answer

DNI × cos(θz) + DHI + reflected irradiance

Answer

DNI + DHI + GTI

Question 3

What does DNI stand for in solar resource assessment?

Accepted Answer

Direct Normal Irradiance

Answer

Diffuse Normal Irradiance

Answer

Daily Net Irradiance

Answer

Diurnal Normalized Index

Question 4

Which instrument is specifically designed to measure Direct Normal Irradiance (DNI)?

Accepted Answer

Pyrheliometer

Answer

Pyranometer

Answer

Spectroradiometer

Answer

Luxmeter

Question 5

What is the clearness index (Kt) in solar resource characterization?

Accepted Answer

Ratio of GHI to extraterrestrial horizontal irradiance

Answer

Ratio of DNI to GHI

Answer

Ratio of actual to maximum possible sunshine hours

Answer

Ratio of DHI to GHI

Question 6

What is the approximate solar declination angle at the summer solstice in the Northern Hemisphere?

Accepted Answer

+23.45°

Answer

0°

Answer

-23.45°

Answer

+45°

Question 7

Which U.S. dataset is most widely used for solar resource assessment and long-term energy modeling?

Accepted Answer

National Solar Radiation Database (NSRDB)

Answer

ASHRAE Fundamentals Handbook

Answer

EPA Clean Air Status and Trends Network

Answer

NOAA Coastal Weather Buoy Archive