Which is the most commonly used type of bearing for automotive wheels?
A) Needle B) Tapered roller
C) Ball D) All of these are correct
B
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Name three different types of primary triggering devices commonly used in ignition systems.
What will be an ideal response?
Dissolved minerals in the boiler feedwater system include metallic salts and calcium carbonates that cause scale, corrosion, and turbine blade deposits. Boiler feedwater is treated with __________ to precipitate these minerals from the water.
a. lime b. salt c. lemon d. ethanol
Walk-around inspections are useful when checking for _____
A) flow rates through the pump B) shaft and coupling alignment C) leaks and abnormal conditions D) binding of rotating components
Match the thermostatic expansion valve component with its function and/or description.
A. brings evaporator outlet pressure into the valve B. used to secure the thermal bulb to the suction line C. contains the diaphragm, valve tag, and thermal bulb D. senses evaporator outlet temperature E. determines the amount of superheat that a valve will maintain F. holds valve's components together while providing ports to connect system's refrigerant lines G. contains superheat spring, needle (pin) and seat, superheat spring adjusting gear H. moves in and out of the seat to modulate refrigerant flow into the evaporator