Technician A says that it is possible to replace press-in type rocker arm studs with threaded ones by milling, then using a tap to thread the boss in the head. Technician B says that it is good practice to replace stamped steel rocker arms during an overhaul. Who is correct?
A. A only
B. B only
C. Both A and B
D. Neither A nor B
Answer: C
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NEMA’s usual service conditions include a frequency variation of not more than what percentage of the nameplate frequency?
a. 1% b. 5% c. 15% d. 20%
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A(n) ____________________ is a normal key imbedded with a resistance pellet.
Fill in the blank(s) with the appropriate word(s).
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Which logic function provides a low output only when all inputs are low?
A) FOR B) AND C) OR D) NOT
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Which oil type works well with HFC and HFC-based blended refrigerants?
A. mineral B. esters C. glycols D. alkylbenzenes
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