Pipe threads, when used on pipe that will contain liquid or vapor under pressure, ____.
A. are tapered
B. should have at least seven perfect threads
C. generally have a "V" shape
D. All of the above.
Answer: D
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In the Unified Soil Classification System, the symbol M stands for
A) medium-grained soil. B) soil of medium plasticity. C) moist soil. D) none of the above.
The only two species of rat that have been domesticated are the black rat and the _____ rat
A) white B) brown C) grey D) orange
Which of the following statements is correct regarding pet pigs?
a. Pigs are very clean. b. They cannot be easily housebroken. c. Pigs urinate and defecate where they sleep. d. They should be kept in the house.
As runoff water flows across a grassed buffer strip, the concentrations of N and P in the water decrease slowly at first, but if the buffer strip is sufficiently wide, major reductions in these concentrations will occur just before the water leaves the buffer
Indicate whether the statement is true or false