Why is it dangerous to use gauges only designed for R-22 on a R-410A system?
A) Because R-410a and brass form an explosive new chemical compound on contact
B) Because R-410a pressures are backwards from other types of refrigerant
C) Because R-410a can dissolve the lining of the hoses used on R-22 systems
D) Because the system pressures can exceed the design limit of the R-22 gauges
D
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goods are known as
a. suppliers. b. competitors. c. distributors. d. customers. e. potential competitors.
A packet traveling between two routers on a frame relay virtual circuit follows the OSI stack as follows:
A) Transport layer to datalink layer to network layer. B) Network layer to datalink layer to network layer to datalink layer to physical layer. C) Transport layer to datalink layer to physical layer. D) Network layer to transport layer to data link layer to physical layer. E) None of the above.
If a room is to be a true office within the home, where should its entrance be located?
A. off the entry B. off the master bedroom C. off the kitchen D. off the dining room
The adhesion of mortar to the masonry unit, wall ties, or other means of reinforcement is known as the _____ .
A. mortar bond B. structural bond C. pattern bond D. construction bond