ESM444 Tma Solutions
1. _____ that require high temperatures, like diesel and gas engines, there is increased tendency to deposit scale
—>> engines
houses
cars
planes
2. Tendency for increase in corrosion is reduced by decreasing the solubility of _____ at higher temperatures
phosphates
carbon
nitogen
—>> oxygen
3. A _____ is a closed vessel in which water under pressure is transformed into steam by the application of heat.
heater
Outsets
insets
—>> boiler
4. _____ recirculation system is the most popular method of controlled cooling of water treatment.
distance
open
—>> Closed
followed
5. Recirculation water systems are of _____ types
7
8
—>> 3
5
6. _____ is the major problem in boiler water system.
—>> Corrosion
abbrasion
pollution
diffussion
7. In _____ recirculation water system, water is circulated in a closed cycle and subjected to alternate cooling and heating without air contact.
—>> closed
land
plane
Chain
8. Dissolved oxygen, dissolved carbondioxide and dissolved ammonia are the main causes of corrosion in the _____
reflectors tapes
steal tape
—>> boiler
Cloth Tape
9. Products of water tube boiler pass around the _____ containing water.
cups
glass
—>> tubes
bucket
10. _____ variations also cause problems in boiler water system
Ox
pN
UN
—>> pH
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