Three out of four career fire fighters work in jurisdictions with a population of _______ or more.
a. 50,000
b. 25,000
c. 100,000
d. 75,000
Answer: b. 25,000
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What is a typical compression pressure achieved in a current highway truck diesel engine?
A. 150 psi B. 350 psi C. 600 psi D. 1200 psi
A domestic hot water loop is often used for heating domestic hot water from the hot discharge gas coming from the heat pump's refrigerant compressor.
Answer the following statement true (T) or false (F)
Technician A says that the thermostat is most often placed in the engine coolant outlet. Technician B says that the thermostat is most often located on the bottom of the engine. Which technician is correct?
A) Technician A only B) Technician B only C) Both Technicians A and B D) Neither Technician A nor B
Answer the following statement(s) true (T) or false (F)
1. Fluids with low vapor pressure values will not evaporate as quickly as those with high values of vapor pressure. 2. Alcohol has a lower vapor pressure value than water. 3. Aluminum?and its alloys have densities that are approximately one-third the density of steel. 4. Titanium?has an excellent strength-to-weight-ratio. Titanium is used in applications where relatively high temperatures, exceeding 400°C up to 600°C, are expected. 5. Bronze is an alloy of copper and tin.