Environmental Design and Regulations

What is the best direction for a solar collector to face?

• North

• East

• South

• West

Which directions are suitable for mounting a solar collector panel, despite a reduction in efficiency?

• North and South

• East, South, and West

• North, East, and West

• East, West, and South-West

Why is the efficiency of a solar thermal system reduced if the collector is not facing due south?

• Because the sun rises in the west and sets in the east

• Because the sun rises in the east and sets in the west

• Because the sun rises in the north and sets in the south

• Because the sun rises in the south and sets in the north

What is the ideal orientation of a solar collector relative to the sun's rays?

• Parallel

• Perpendicular

• At a 45-degree angle

• At a 30-degree angle

Why is a compromise angle of 30 degrees commonly used for the tilt angle of a solar collector?

• It is the angle at which the sun is highest in the sky.

• It is the angle that maximizes energy absorption.

• It is not practical to alter the tilt angle frequently.

• It is the angle that minimizes energy absorption.

How does the elevation of the sun vary throughout the year?

• The sun is higher in winter and lower in summer.

• The sun is at the same elevation all year round.

• The sun is higher in summer and lower in winter.

• The sun is lower in summer and higher in winter.

What should you be aware of when positioning solar collector panels?

• The color of the roof

• The type of solar panels

• Structures, trees, chimneys, and aerials that could shade the collector

• The brand of the solar panels

Why might it be necessary to visit the property at different times of the day when positioning solar collector panels?

• To check the temperature

• To note any shadows

• To measure the wind speed

• To observe the color of the sky

What needs to be surveyed before installing a collector panel on a property?

• The electrical wiring

• The plumbing system

• The structure, often the roof area

• The garden area

What considerations need to be taken into account when surveying the roof for mounting a collector panel?

• The color of the roof

• The strength and condition of the roof, along with additional forces exerted by the wind

• The number of windows in the house

• The type of flooring inside the house