Too much penetration when making a root pass can result in _____
a. increased slag flow
b. excessive root reinforcement
c. arc strikes
d. insufficient undercut
b
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It is becoming more difficult to meet environmental regulations for large dairy herds
Indicate whether the statement is true or false.
Match the definition to the correct term.
A. Fat. B. Cud-chewing animal with a forestomach. C. Respiratory disease caused by bacteria and or viruses. D. Scientists who studies parasites.
The maximum fill level for a refillable refrigerant cylinder is:
A) 80% of its volume. B) 70% of its volume. C) 100% of its volume if the cylinder is rated for that particular refrigerant. D) Refillable cylinders should not be refilled with refrigerant.
A system using R-404a has an evaporation temperature of 20°F. If the line length is 100 ft. and a 7/8 in line is used, what is the maximum capacity of the system?
A) 3 tons B) 2. 5 tons C) 2 tons D) 1. 5 tons