The electrolyte in a lead-acid storage battery consists of distilled water and ().
A、A.hydrogen chloride
B、B.calcium chloride
C、C.sulfuric acid
D、D.muriatic acid
A、A.hydrogen chloride
B、B.calcium chloride
C、C.sulfuric acid
D、D.muriatic acid
A、in sight of the main engine(s) B、in a tray lined with suitable material that resists damage from the electrolyte C、in locked closets with restricted ventilation D、near the bilge to lower the center of gravity and improve stability
A、Prevent the accumulation of explosive gases B、Protect the hull from leaking electrolyte C、Prevent movement of the battery in rough waters D、Protect against accidental shorting across terminals
A、A.in trays constructed of material that is resistant to the electrolyte B、B.so as to prevent movement when the vessel pitches and rolls C、C.in a well ventilated area D、D.All of the above
A、to keep the boats covered at all times B、not to leave steel or iron tools lying in or near these boats C、to keep an electric charge on the hull at all times D、to rinse these boats regularly with salt water
A、In positions in which the noises in the ship are least likely to interfere with the hearing of a fog signal and the man can see clearly B、In positions in which the noises in the ship are much likely to interfere with the hearing of a fog signal C、In positions in which the hearing of a signal is reduced to a minimum D、In a position in which the man can see clearly
A、both meters in series with the resistance B、both meters in parallel with the resistance C、the ammeter in series and the voltmeter in parallel with the resistance D、the ammeter in parallel and the voltmeter in series with the resistance