When preparing aluminum pipe coupons, use an approved solvent and a clean rag to remove any grease or
oil within a minimum of _____.
a. 1-1/2" from the weld joint
b. 1" from the weld joint
c. 3/4" from the weld joint
d. 1/2" from the weld joint
b
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What is operating pressure for a code vessel?
A. 0–5 psi B. 5–10 psi C. 15–3,000 psi D. 3,000–5,000 psi
Find the volume of a prism with a base area of 210 square inches and a height of eight inches.
A. 1,320 cu in B. 13,440 cu in C. 1,680 cu in D. 1,580 cu in
An SCR has a critical rise (dv/dt) rating of 35 V/?s. Used in a circuit where 3 ms (rise time) noise signals occur randomly, the noise amplitude required to cause false triggering is
A) 35 mV B) 105 mV C) 17.5 mV D) 3 ms
The size of the deadband is ____ proportional to the rate at which a final control element turns on and off.
A. directly B. inversely C. none of the above