What is used as the cooling medium in heat exchangers known as aftercoolers and intercoolers?
A. ram air
B. engine coolant
C. engine lubricant
D. engine fan
Answer: B
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Answer the following statement(s) true (T) or false (F)
1. Almost all power supplies are shipped from the manufacturer with the voltage setting in the HIGH voltage (240 V) position. 2. The first step in the start-up procedure is to check all power and communication cables to ensure that the connector pins are straight, and not bent or pulled out. 3. Each time an input device is closed, the corresponding LED on the input module should illuminate. 4. There are three methods used to test output devices. 5. The electrician and/or technician should be aware of how the system normally functions if he or she expects to successfully troubleshoot the system.
A curtain wall is separated from the structural frame of the building by a minimum of
A) 1 in. B) 2 in. C) 3 in. D) 4 in. E) none of the above.
Which device protects the air pump from reverse exhaust pressure?
A) PCV valve B) Check valve C) EGR valve D) IAC valve
Carry the answer to three decimal places. The total current (amperes) is equal to the sum of the individual currents. Find the total current in the figure shown.
Fill in the blank(s) with the appropriate word(s).