El concreto en un estado plástico es _______.
a. resistente
b. impermeable
c. portátil
d. verde
Answer: C
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The type of jack that is operated by the pressure of an enclosed liquid is the _____ jack.
a. screw b. ratchet c. hydraulic d. electric
The Newlands Act, passed under Theodore Roosevelt's administration, was designed to
A. reserve western wilderness areas and rivers for endangered species. B. open new federal lands to sustainable forestry. C. reclaim and irrigate unproductive lands. D. provide protection for fragile western wilderness areas. E. preserve clean water in the mountain West.
Which of the following is required practice when refilling a differential carrier housing with lube after an oil change?
A. fill with an API GL-5 rated lubricant to the bottom of the filler hole B. add an additional 2 pints (1 liter) to the power divider fill hole C. jack the axle sequentially at either end to ensure lube reaches the wheel ends D. all of the above
In ____, the emphasis is on how well the control system can follow changes in the reference or desired input signal.
A. servo systems B. process control systems