A hydraulically operated booster unit stores fluid under pressure by means of ________
A) A pressure chamber B) An actuator
C) A boost piston D) An accumulator
D
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What type of valve uses a disc and seat to regulate the flow of fluid through the valve body?
A. Gate B. Globe C. Check D. Butterfly
What are the three main ways that federal forest lands are used?
What will be an ideal response?
An air conditioner with a thermostatic expansion valve is operating with a condenser saturation temperature of 110°F and a liquid line temperature of 85°F. The factory specified subcooling for the current operating condition is 10°F. After checking the condenser coil and airflow, the technician should:
A) Leave the charge alone because it is cooling even better than factory specifications. B) Add charge because the system is undercharged. C) Recover charge because the system is overcharged. D) Move some of the charge from the low side of the system to the high side of the system to balance the charge.
When making louver cuts, what is used as a fulcrum to make the louvered openings?
a. roof support b. decking c. purlin d. ridge pole