Technician A says that safety glasses are only necessary when working with power tools. Technician B says to remove jewelry when performing automotive service. Which technician is correct?
A) Technician A only
B) Technician B only
C) Both technicians
D) Neither technician
B) Technician B only
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What is an indication that engine oil has become contaminated with engine coolant?
A. cloudy appearance B. greenish color C. reddish color D. darker in color
____________________ leads are brought out when any wye-connected windings are used in a three-phase transformer.
Fill in the blank(s) with the appropriate word(s).
PROBLEM 3.56 Solve Prob. 3.55, assuming that the shaft AB is replaced by a hollow shaft of the same outer diameter and 25-mm inner diameter. PROBLEM 3.55 Two solid steel shafts are connected to a coupling disk B and to fixed supports at A and C. For the loading shown, determine (a) the reaction at each support, (b) the maximum shearing stress in shaft AB, (c) the maximum shearing stress in shaft BC.
An HVACR technician takes a reading of 25 Hg. Which type of gauge is he using?
A) He is using a manometer. B) He is using a compound gauge. C) He is using a high pressure gauge. D) It is impossible to tell.