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Water Operator Grade IV Certification - copy (AWWA) Questions and Answers $18.49   Add to cart

Exam (elaborations)

Water Operator Grade IV Certification - copy (AWWA) Questions and Answers

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  • Course
  • AWWA
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  • AWWA

Water Operator Grade IV Certification - copy (AWWA)

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  • September 13, 2024
  • 24
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • AWWA
  • AWWA
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julianah420
Water Operator Grade IV Certification -
copy (AWWA)

The main objective of a safety program is to _ _. - answerprevent accidents

_, _ _ is the most appropriate person for evaluating a potential safety hazard. -
answeryou
the operator

_, _ _ has the most to gain from an effective safety program. - answeryou
the operator

For a water system to have an effective safety program, the most important item that
operators can do is _ _ _ _ (_). - answercommit to the program (attitude)

Excavated material, tools, and other equipment needs to be placed at least __ feet
away from the surface edge of an excavation. - answer2

If the trench is _ feet deep or more it will require a fixed means of egress. - answer4

For a trench, exits must be provided at least every _ feet. - answer25

Ladders must be secured and extend a minimum of _ feet above the landing. - answer3

If a trench is _ feet deep or more it will require some means of protection - answer5

Why is shoring used in trenches? To prevent _ and _. - answerinjury
death

A flagger is required at least _ feet in front of an excavation site. - answer100

_ is the most common combustible gas. - answerMethane

One volume of liquid chlorine will expand _ to _ volumes of gaseous chlorine. This
means that it is important to rotate the tank so the rupture is at the top. - answer450
460

Chlorine gas is _ times denser than air. - answer2.5

Chlorine containers/cylinders are filled to _ % of capacity. - answer25

,To check for leaks use an ammonia solution. A _ _ will appear if there is a chlorine leak.
- answerwhite cloud

Repair Kit _ is used for for 150 lb. cylinders. - answera

Kit _ is used for ton containers. - answerb

A SCBA air supply will last _ on individual breathing patterns while under stress. -
answerdepending

The most dangerous type of chlorine incident is _ or _ of a cylinder. - answerrupture
failure

Fusible Plugs are used to prevent tank rupture for controlled leak situations and melt
between _ to _ Fahrenheit. - answer157
160

Ton containers have _ fusible plugs mounted on each end. - answer3

Exhaust fans should be ducted at _ _. - answerfloor level

Fresh air intake are ducted at the _. - answerceiling

_ _, _ _, _ _, _ _, and _ _ are recommended safety equipment when working with
fluoride chemicals. - answerchemical goggles
respirator mask
rubber gloves
rubber apron
rubber boots

Use _ _ to neutralize acid spills. This chemical is also know by its household name _ _.
- answersodium bicarbonate
baking soda

What are some potential hazards in confined spaces?

_ gases and/or _ oxygen content

_

_ of electrical equipment

_, _, and _. - answertoxic low
flooding
condensation
slips trips falls

, An atmosphere that has _ oxygen by volume is considered oxygen deficient. -
answer19.5

_ _ is the procedure that should be followed every time when working with electrical
equipment. This prevents accidental energizing of equipment. - answerLockout Tag

Lockout tags can be removed _ _ _ _ _ _ _ _. - answeronly by the person who put it on

_ _ and _ two types of electrical safety devices found in control panels. - answercircuit
breakers
fuses

Vulnerability Assessments are required for systems serving populations of _ or more. -
answer3300

_, _, and _ are the three stages of threat management. - answerpossible
credible
confirmatory

Water systems are concerned about Smallpox because it is both a _ and a _ that has a
high rate of _ transmission. - answerpathogen
biotoxin
secondary

What are the three FEMA disaster classifications? - answerWhat are the three FEMA
disaster classifications?

_ is legislation requiring utilities to report chemicals stored on site. - answersara

Password protect and change password every _ days. - answer90

Pathogenic are _ causing organisms. - answerdisease

Organisms that don't cause disease are _-_. - answernon-pathogenic

_ is a process to kill pathogenic organisms. - answerdisinfection

_ is a is a natural component of the earth's upper atmosphere, where it is primarily
formed photo chemically. - answerozone

Ozone doesn't leave a lasting _. - answerresidual

What is the molecular formula for ozone? - answero3

What is the molecular structure of oxygen gas? - answero2.

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