What is the function of the admission valve used in some diesel CR fuel systems?
A. prevents fuel siphon from the rail on shutdown
B. holds rail pressure fuel away from nozzle seat until energized
C. monitors fuel quantity entering the CR pump
D. restricts flow area of the rail inlet
Answer: B
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When calculating the load in volt-amperes for the main service-entrance conductors, the demand factor for the first 3,000 volt-amperes is 100%, the demand factor for all volt-amperes in excess of 3,000 volt-amperes is ___________________%.
Fill in the blank(s) with the appropriate word(s).
If the alternatives are mutually exclusive and the MARR is 15% per year, the alternative to select is:
(a) Either B, D, or E (b) Only B (c) Only D (d) Only E
The superheat is 12°F. What is the suction line temperature if the evaporator saturation temperature is 35°F?
A) 10°F B) 23°F C) 17°F D) 47°F
In the electrode designation E12018, the fourth digit represents the _____
a. tensile strength b. welding position c. flux type d. type of welding machine to be used