How many time constants will it take to completely build a magnetic field around an inductor?
A) 1 B) 2 C) 3 D) 4 E) 5
E
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Type ____ mortar is a high-strength mortar with a compressive strength of 2,500 psi.
A. M B. N C. O D. S
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Which crack detection technique requires the use of a blacklight?
A) Dye penetrant B) Zyglo C) Magnetic flux D) None of these
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Why is it recommended that an acetylene cylinder valve never be opened more than 1/2 turn?
A) To regulate the pressure to the torch handle B) To minimize the strain of the high cylinder pressures on the valve threads C) To prevent the valve from getting stuck in the fully opened position D) To allow rapid shutoff in the case of an accident
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In a purely inductive circuit, the current waveform lags the voltage waveform by _____
a. 0 degrees b. 45 degrees c. 90 degrees d. 180 degrees
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