Questions

Change control management is utilized from the begining to the end of the project in order to keep it focused with an emphasis on the time and budget. Answer A is incorrect because change control management is not seperate from the other phases. Answer B is incorrect because the control plan must be throughout the other phases of a project. Its usage is not optional, and consistent utilization is imperative to managing scope creep and other scope expansions. Answer C is incorrect because the project sponsors is generally not responsible for the change control documentation, although it should be involved in the buy-in and approval process.

Solar radiation instruments may be produced to measure different types of solar energy. When sunlight encounters the Earth's atmosphere, some of it is absorbed or scattered by water vapor, aerosols, clouds, and other air molecules. The radiation which penetrates to the Earth's surface is termed direct solar radiation.

A thermopile pyranometer is a type of actinometer used for measuring solar radiation on a planar surface and it is designed to measure the solar radiation flux density (W/m2) from the hemisphere above within a wavelength range 0.3 μm to 3 μm.