Technician A says that a disadvantage of a HADI over a standard EHI, is that the HADI nozzle seat has to seal much higher rail pressures. Technician B says that the high pressure piston pump used with the current DD-Series ACRS is supplied by Bosch. Who is correct?
A. Technician A only
B. Technician B only
C. Both A and B
D. Neither A nor B
Answer: B
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When an oxygen cylinder is exposed to fire, what device is used to reduce the chance for an explosion?
A. rupture disc B. fusible plug C. flashback arrester D. backfire arrester
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Unless otherwise specified, in a tall building the relief vents are commonly installed every _____.
a. 3 floors b. 5 floors c. 10 floors d. 20 floors
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La caída de voltaje MÁXIMA recomendada para los circuitos derivados, de alimentación y conductores combinados es:
a. 0.03 b. 0.05 c. 0.07 d. 0.09
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Cavity insulation can be installed at levels up to ____ in a 2 in. x 4 in. wall.
A. R-5 B. R-6 C. R-15 D. R-21
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