One method of controlling chemical concentrations is to prepare chemical batches using a table of tank level vs__________
chemical addition
pump stroke
steam flow
feedwater addition
Mechanical carryover can be prevented by careful boiler design and by operating the boiler within the design parameters for ______ level and firing rates
chemical
water
blowdown
impurities
The two most common designs of chemical feed pumps are the ________, plunger type and the electronic impulse-type
electric
electronic
reciprocating
vibrating
A______ feed system, this involves feeding the chemicals to the boiler system at the most efficient injection points and at a steady and continuous rate.
closed bypass
shot
slug
continuous
_______ is particularly harmful as it forms a very hard deposit on turbine blades.
carryover
mist
silica
phosphate
The cause of carryover can be divided into two broad categories, namely mechanical and
virtual
upset
_______ is particularly harmful as it forms a very hard deposit on turbine blades
sillica
control of the continuous blowdown flow is _____ adjusted by the operator
manually
automatically
quickly
slowly
Shot feeding involves the injection of chemicals over a relatively _______ period of time
long
intermittent
short
measured
With the ______ feed system, its a common practice to mix one batch of chemicals per day.
_______ is any solid, liquid or vaprous contaminants that leaves the boiler with the steam
feedwater