What is the minimum slope allowed within the first 10" of a foundation system?
A) 6" B) 10" C) 4" D) 12"
A
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Which of the following is the symbol for an internal floating roof tank?
A. 
B. 
C. 
D. 
Technician A says that current air brake systems are designed to bring a fully loaded tractor trailer combination safely to a complete standstill in the event of a complete failure of either the primary or secondary circuits. Technician B says that in an emergency, a tractor-trailer combination can be driven a few miles providing only the secondary circuit has failed. Who is correct?
A. Technician A only B. Technician B only C. Both A and B D. Neither A nor B
What type of conversions change a value from one system (e.g. 1'') to a rounded value in another system (e.g., 25 mm)?
A. base conversions B. hard conversions C. IRC conversions D. soft conversions
Which of the following is an incorrect statement regarding air system fittings and transitions?
A) Their pressure loss is greater than that of a given length of the same size straight duct. B) They can be used to change the direction of airflow in a duct system. C) They have the same pressure loss per foot as the same size of straight duct. D) They can be used to change the velocity of airflow in an air duct system.