14. Sacrificial anodes are bolted inside the_____ of a heatexchanger
15. Sacrificial anodes minimize______ within a heatexchanger
17. The two factors that determine the choice of toolsand equipment for a specific heat exchanger
of a heat exchanger maintenance job are familiarity with the(a)________ and knowledge of the (b)______
18. Blockage in a shell-and-tube heat exchanger mayrange from relatively light accumulations of (a)_______ and(b)_______ to heavy blockage caused by (c)_______ in coolingwater
22. Automatic cleaning systems work by either(a)________or (b)_______ means
23. Some automatic chemical cleaning systemsperiodically introduce chlorine into the incoming water tokill________ and prevent growth on tube walls
25. When a main condenser is to be flooded, jack orsupports may be necessary to________
26. Maintenance of smaller heat exchangers isapproached differently from large heat exchangens because thesmaller components are (a)______ and can be moved by(b)______
