B.a. The metal halide lamp is designed for a specific operating position. Which one of the following is not an acceptable operating position? A. Horizontal B. A 45 degree tilt C. Vertical base up D. Vertical base down B.b. SP35 is part of the fluorescent lamp ordering code. It means that the lamp has a color temperature of A. 35°K B. 35°F C. 350°F D. 3500°K B.c. A typical application for a compact fluorescent lamp would be in a(n) A. industrial fixture of a warehouse. B. 15-foot high ceiling of a hotel. C. recessed downlight of a kitchen. D. parking lot fixture.

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Electrical Heating Unit

The conversion of electrical energy to heat energy is known as electric heating. The heating system that converts the electrical energy to heat energy for various application is called electrical heating unit. Electricity is employed as the firing mechanism in electric heating systems, which transforms electric current to heat. Electric heaters have heating elements in the form of electric resistors.