Which of the following training methods provides supervised practice in manual tasks in an
area where the emphasis is on safety and learning rather than on productivity?
a. Simulation
b. Behavior modeling
c. On-the-job
d. Vestibule
e. Programmed instruction
D
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An air spade moves soil particles and mulch, but also runs the risk of seriously injuring the root system
Indicate whether the statement is true or false
According to the text, what gas can disable the catalyst if it contaminates the PEM fuel cell?
A) CO B) NOx C) N2O D) CO2
Underwriters Laboratories standard 181 A covers:
A) Methods of connecting and sealing flexible duct. B) Methods of connecting and sealing ductboard. C) Methods of connecting and sealing all types of duct. D) Methods of connecting and sealing metal duct.
What are the energy conservation gains from the following:
a. Switching from a single 60-watt incandescent bulb that burns for 6 hours per day to a 13-watt CFL. b. Using pure biodiesel instead of motor gasoline for an automobile that travels 60,000 miles per year with a fuel economy of 28 mpg. c. Replacing a heat pump with a COP of 3.2 with a heat pump with a COP of 2.6, if the heating load is 43.3 million Btu per year. d. Replacing an air conditioner with an EER of 11 with a unit that has an EER of 14, if the cooling load is 22 million Btu per year. e. Upgrading a natural gas furnace from one with 88% efficiency to one with 92% efficiency, if the heating load is 55 million Btu per year. What will be an ideal response?