Technician A says that major sources of chemical dangers are from solvents containing chlorinated hydrocarbons. Technician B says that solvents can be reclaimed so that they can be reused. Which technician is correct?
A) Technician A only
B) Technician B only
C) Both technicians A and B
D) Neither technician A nor B
D) Neither technician A nor B
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Which of the following insulating materials is available in the form of rigid boards?
A) Rock wool B) Insulating concrete C) Fiberglass D) Extruded polystyrene E) None of the above
Using the formula V = ?r2h, find the volume of a cylinder with a diameter of 19 inches and a height of 27 inches, and round the answer to a whole number _____.
a. 467 cu in b. 786 cu in c. 4,326 cu in d. 7,655 cu in
For how many years did Facebook operate at a loss before becoming cash flow positive?
A. 1 year B. 2 years C. 3 years D. 5 years
What is the role played by a battery described as an isolated battery in a truck electrical system?
A. used only for cranking B. used primarily when engine is off C. used only when other batteries are flat D. used to power-up the data bus