When masonry units are laid or stacked directly over one another with the head joints in plumb vertical position, it is called _____ .
A. stack-over-stack
B. stack design
C. jack work
D. jack-over-jack
Answer: D
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The cad cell in an oil furnace performs the same function as which device in a gas furnace?
a. Temperature limit switch b. Flame detector c. Hot surface igniter d. Flame rollout switch
It has been shown experimentally that lycopene (a dietary carotenoid that gives tomatoes their red color) is effective against prostate cancer, breast cancer, and heart disease. Numerous manufacturers of dog food are adding tomato products to dog food believing that dogs can share in these health benefits of lycopene
A. True B. False
An abundance of macropores in soils helps assure an abundance of oxygen in the soil
Indicate whether the statement is true or false
When is the safest time to weld a rim:
a. In the dark b. On the weekend c. Any time as long as the tire is deflated d. Never