Before beginning an insulation project, you should always complete a _____.
a. safety data sheet
b. materials and equipment inventory
c. job hazard analysis
d. labor estimate
Answer: C
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Technician A says that oil pressure is normally higher when the engine is cold. Technician B says that normal engine oil pump pressure ranges from 20 to 80 psi (200 to 400 kPa) or 20 psi for every 1000 engine RPM. Who is right?
A. Both technicians A and B B. Technician B only C. Neither technician A nor B D. Technician A only
Sometimes the current will rise and fall at the same rate as the voltage and will reverse the direction of flow when the voltage reverses polarity. In this condition, the current is said to be ____ with the voltage.
a. in phase b. out of phase c. resistive d. inductive
b. Italy and Germany
a. Austria b. the Ottoman Empire c. Russia d. Prussia
What is the maximum safe fill weight of a recovery cylinder with a tare weight of 30 lb, a water capacity of 40 lb, holding a refrigerant with a specific gravity of 1.2?
A) (30 lb + 40 lb) × 0.8 = 56 lb (rounded) B) 30 lb + 40 lb = 70 lb (rounded) C) 30 lb + (40 lb × 0.8 × 1.2 ) = 68 lb (rounded) D) (30 lb + 40 lb) × 1.2 = 84 lb (rounded)