SHI Technology & Digital Tools 2

Question 1

Which software tool is commonly used to model shading losses on a solar thermal collector array throughout the year?

Accepted Answer

SAM (System Advisor Model)

Answer

NREL's System Advisor Model (SAM) is widely used to simulate solar thermal performance including shading and energy output projections.

Question 2

A solar installer uses a digital inclinometer app on their smartphone. What measurement does this tool provide?

Accepted Answer

Tilt angle of the collector mounting surface

Answer

A digital inclinometer (clinometer) measures the angle of slope or tilt of a surface relative to horizontal.

Question 3

What is the primary purpose of using Building Information Modeling (BIM) software during a solar thermal installation project?

Accepted Answer

To coordinate 3D spatial design and detect clashes with other building systems

Answer

BIM software enables 3D coordination of all building systems, helping installers identify spatial conflicts before installation begins.

Question 4

A technician uses a digital manifold gauge set connected via Bluetooth to a tablet. What advantage does this provide over analog gauges?

Accepted Answer

It logs real-time pressure and temperature data for documentation

Answer

Bluetooth-connected digital manifolds allow real-time data logging on a tablet, improving documentation accuracy and diagnostic efficiency.

Question 5

Which type of sensor is most commonly integrated with a smart solar thermal controller to enable remote monitoring via the internet?

Accepted Answer

Pt1000 resistance temperature detector (RTD)

Answer

Pt1000 RTD sensors offer high accuracy and are compatible with modern differential controllers that support IoT connectivity.

(SHI) Solar Heating Installer Certification Practice Test