Describe what marble is and what it is most commonly used for.
What will be an ideal response?
Marble is a metamorphic rock made up largely of calcite or dolomite that has been re-crystallized. There are a number of types of marble, with colors varying from white through gray and black. The presence of oxides of iron, silica, graphite, carbonaceous matter, and mica produce other color variations, including red, violet, pink, yellow, and green. Marble is used for wall panels and column facings, as well as window stools, windowsills, and floors. Some types are used on building exteriors, and others are limited to interior applications. Its surface can be ground to a fine, polished condition.
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Fluorescent lamps with a single pin at each end are known as _____.
a. instant-start lamps b. rapid-start lamps c. preheat lamps d. high-output (HO) lamps
Technician A says that carbon inside the engine can cause excessive NOx to form. Technician B says that excessive NOx could be caused by a cooling system fault causing the engine to operate too hot. Which technician is correct?
A) Technician A only B) Technician B only C) Both technicians D) Neither technician
Springs support the weight of the vehicle and absorb the bumps and movements that occur when driving.
Answer the following statement true (T) or false (F)
To be effective, the time constant of the ____________________ (inner, outer) loop of a cascade system should always be 3 to 10 times faster than the time constant of the ____________________ (inner, outer) loop.
Fill in the blank(s) with the appropriate word(s).