Pervious concrete is placed over a gravel sub base of ____ inches or more that provides a storage reservoir for rainwater, allowing it to percolate into the ground.
A. 3
B. 6
C. 9
D. 12
Answer: D
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___________________ strives to eliminate or minimize any process, operation or material usage that does not contribute to an efficient maintenance operation
A. corrective maintenance B. preventive maintenance C. lean maintenance D. JIT maintenance
A hydraulic hose is chosen according to the temperature and pressure range of the system and the ________
A) hose length required B) type of fluid used C) flow rate of the product D) age of the system
When troubleshooting a residential hydronic heating system, the technician notices that the burner keeps going out on high limit. What is the most likely cause?
A. defective high limit control B. defective circulator motor C. defective room thermostat D. defective zone valve
Cutting steel products can be done in one of several ways depending on the product shape and size. Which statement identifies a correct cutting method?
A. Thin, flat shapes can be cut on a shear. B. Medium-sized members such as beams and columns are often cut with a flame cutting torch. C. Thicker structural shapes are usually cut with a special hot cutting saw. D. Large-sized structural steel shapes are typically cut using a plasma cutter.