3.10 internal water treatment for boilers

Descrição

Quiz sobre 3.10 internal water treatment for boilers, criado por TRAVIS CANNING em 29-01-2016.
TRAVIS CANNING
Quiz por TRAVIS CANNING, atualizado more than 1 year ago
TRAVIS CANNING
Criado por TRAVIS CANNING mais de 8 anos atrás
81
1

Resumo de Recurso

Questão 1

Questão
One method of controlling chemical concentrations is to prepare chemical batches using a table of tank level vs__________
Responda
  • chemical addition
  • pump stroke
  • steam flow
  • feedwater addition

Questão 2

Questão
Mechanical carryover can be prevented by careful boiler design and by operating the boiler within the design parameters for ______ level and firing rates
Responda
  • chemical
  • water
  • blowdown
  • impurities

Questão 3

Questão
The two most common designs of chemical feed pumps are the ________, plunger type and the electronic impulse-type
Responda
  • electric
  • electronic
  • reciprocating
  • vibrating

Questão 4

Questão
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.
Responda
  • closed bypass
  • shot
  • slug
  • continuous

Questão 5

Questão
_______ is particularly harmful as it forms a very hard deposit on turbine blades.
Responda
  • carryover
  • mist
  • silica
  • phosphate

Questão 6

Questão
The cause of carryover can be divided into two broad categories, namely mechanical and
Responda
  • virtual
  • carryover
  • upset
  • chemical

Questão 7

Questão
_______ is particularly harmful as it forms a very hard deposit on turbine blades
Responda
  • carryover
  • mist
  • sillica
  • phosphate

Questão 8

Questão
control of the continuous blowdown flow is _____ adjusted by the operator
Responda
  • manually
  • automatically
  • quickly
  • slowly

Questão 9

Questão
Shot feeding involves the injection of chemicals over a relatively _______ period of time
Responda
  • long
  • intermittent
  • short
  • measured

Questão 10

Questão
With the ______ feed system, its a common practice to mix one batch of chemicals per day.
Responda
  • closed bypass
  • shot
  • slug
  • continuous

Questão 11

Questão
_______ is any solid, liquid or vaprous contaminants that leaves the boiler with the steam
Responda
  • carryover
  • blowdown
  • feedwater
  • mist

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