Technician A says that water based fire extinguishers remove oxygen from the fire. Technician B says that CO2 fire extinguishers remove oxygen from the fire. Which technician is correct?
A) Technician A only
B) Technician B only
C) Both technicians A and B
D) Neither technician A nor B
B) Technician B only
You might also like to view...
Which of the following is a disadvantage of pneumatic testing?
A. It allows steam to get trapped. B. A potential for rupture exists in low-pressure, low-volume systems. C. Ambient temperature must be within a certain range. D. It takes longer to depressurize the system.
Schematic diagrams ____.
a. are used to represent how the circuit generally appears b. show components mounted in their general location with connecting wires c. show components in their electrical sequence without regard for physical location d. show all hypothetically possible logical relations
The figure below presents the marginal revenue that a farmer can obtain from water, and the marginal cost to the farmer to move the water to her land. There are two farmers with the exact same marginal revenue and marginal cost curves, but Farmer A is upstream, and therefore allowed to extract her water first. There is only 400 acre feet of water available for the two farmers. If there is no
water market, Farmer A would use ________ acre feet and Farmer B would use ________ acre feet. Under the efficient allocation, Farmer A would use ________ acre feet of water, and Farmer B would use ________ acre feet.
For metric fits, the ___________________________________ establishes the magnitude of the tolerance zone or the amount of part size variation allowed for both internal and external dimensions.
Fill in the blank(s) with the appropriate word(s).