Which federal agency regulates automobile emissions in the United States?
A) FBI B) DOT C) EPA D) USPS
C
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An instrument to measure the acceleration of gravity on Mars is constructed of a spring from which is suspended a mass of 0.40 kg. At a place on earth where the local acceleration of gravity is 
the spring extends 1.08 cm. When the instrument package is landed on Mars, it radios the information that the spring is extended 0.40 cm. What is the Martian acceleration of gravity?
What will be an ideal response?
Spontaneous breakage generally occurs in ________.
A) laminated glass. B) tempered glass. C) heat-soaked tempered glass. D) heat-strengthened glass. E) annealed glass.
Practical application: A one-lane bridge consists of a 10-in.-thick, 16-ft-wide reinforced concrete slab supported on two steel girders spaced 10 ft apart. The girders are 62-ft long and weigh 400 lb/ft. The bridge is to be designed for a uniform live load of 700 lb/ft acting over the entire length of the bridge. Determine the maximum reaction applied to an end support due to dead, live, and impact loads. The live load may be assumed to act along the centerline of the deck slab and divide equally between the two girders. Each concrete curb weighs 240 lb/ft and each rail 120 lb/ft. Stone concrete has a unit weight of 150 lb/ft 3 . Assume an impact factor of 1.33.
All of these are hazardous waste EXCEPT __________
A) Air-conditioning refrigerant and oils B) Cleaning solvent C) Used engine coolant and antifreeze D) All of these are hazardous wastes