Which of the following distribution systems would you select for a medical research campus?A) Primary selective system.C) Secondary loop system.B) Distributed radial system.D) Primary and secondary loop system.Authoritative rules for electrical design and installation are contained in which of the following7)documents?A) ASHRAE Handbook of Fundamentals.B) NFPA 101.C) NEC.The illumination from a point source 4 ft. above a surface is 100 foot-candles, and the surface isnormal to the source. What will be the illumination level if the surface is tilted 45°?A) 50 foot-candles.B) 100 foot-candles.C) 71 foot-candles.Which of the following lamp types is generally the most energy efficient?A) Incandescent.C) High intensity discharge.B) LED.D) Fluorescent.

Since you have posted multiple different question. we will solve the any question for you. To get the remaining question solved please repost the complete question and mention the question to be solved". Incandescent According to the fill gas and pressure in the bulb, which affects efficiency, life, and color, incandescent lights can be classified as conventional or halogen. The electric current that powers the lamp is either line voltage or low voltage. Both conventional and halogen versions are available. Depending on whether the lamp distributes light in all directions or directs light into a beam, it is non-reflectorized or reflectorized. The majority of non-reflectorized bulbs are incandescent, while the majority of reflectorized lamps are now halogen. Incandescent bulbs have a low efficiency, which is a significant disadvantage in terms of increased operating costs and more heat in the space.Fluorescent Fluorescent lamps come in a considerably wider variety of hues than incandescent lamps, ranging from warm, almost incandescent tones to cold whites that look like sunshine. Fluorescent lighting is an extremely energy-efficient light source with minimal operating costs and negligible heat output. Fluorescent lighting is very useful for providing high levels of general and task illumination.LED LEDs emit light when a voltage is given to negatively charged semiconductors, forcing electrons to combine and form a unit of light (photon). An LED is a chemical chip that is enclosed in a plastic capsule. Several LEDs are occasionally combined to make a single light bulb due to their compact size. In general, LED lighting is very much more efficient than Fluorescent and Incandescent and lasts longer than any other sort of light source. So LED is higher energy efficient among all.