The accompanying figure shows the elements of a roof. What is feature 1?
A. Roof covering
B. Underlayment
C. Collar tie
D. Rafter
Answer: A
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All of the following statements about wheel rims are true EXCEPT:
A. A wheel rim with negative offset has the center of the tire positioned inboard from the vertical wheel mounting surface B. Wheel rims must position the tires at the proper distance inward or outward from the vertical wheel mounting surface C. A wheel rim with positive offset has the center of the tire positioned outboard from the vertical wheel mounting surface D. A wheel rim with negative offset has the center of the tire positioned outboard from the vertical wheel mounting surface
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What will be an ideal response?
What is the operating principle of glass stem thermometers?
A) The fluid inside the thermometer boils as it is heated, causing the liquid level to rise. B) The fluid climbs the walls of the tube through capillary attraction, which works better at higher temperatures. C) The refractive properties of the glass stem change with temperature, making the fluid level appear higher at higher temperatures. D) Expansion and contraction of the fluid makes the liquid level rise and fall with temperature.