Which of the following is NOT commonly used for disinfection of water?

Drinking water standards generally specify that a water is safe provided that testing in a specified manner does not reveal more than an average of

Which of the following is NOT a practical method for removal cadmium?

Back-siphonage may be prevented by all of the following except

Which is NOT a variable to be considered when deciding upon a safe distance between a well and a sewage disposal system

The presence of which of the following elements in water treatment plant effluent is used as a measure of filtration efficiency?

Which of the following is used to control the growth of algae and protozoa?

gases frequently found in water that encourage corrosion are

In emergencies, small quantities of water can be disinfected by boiling or using

The presence of which of the following in water would indicate past or possibly intermittent pollution?

Reduction of the level of fluorides in the drinking water can be accomplished by

Backflow of nonpotable materials into the potable water system may occur by

Hardness in drinking water is desirable at levels of

Alkalinity of water is desirable at levels of

Objectionable tastes and odors in public water supplies are, in a great majority of cases, due to the presence of

The substance commonly used as a coagulant in water treatment is

The disinfecting ability of chlorine is affected most by

Alkalinity exists in three forms. Which is NOT one of these forms?

Which of the following compounds would NOT contribute to water hardness?

Improperly located wells, allowing fecal pollution of the water supply, may lead to outbreaks of

Masonry reservoirs of rural water supplies are called

The general type of subsurface formation in which groundwater contamination is likely to travel the farthest is

The addition of sodium bicarbonate is usually used to

To raise the pH, add

A chemical commonly used to improve water clarity is

The best control of swimmer's itch at a bathing beach is to

Generally prohibited swimming facility from a public health perspective is a

Swimming pool water that is brownish black in color may be due to

In an emergency, people will need _ of water per day

Which of the following is considered by many to be the most insidious type of pollution?

The louder the sound, great the

A constant buzzing or ringing in the ears is called

Cross-connection controls include air gaps, backflow preventers, vacuum breakers and

The end of a waste pipe should terminate at least _ above the rim of the sink or receptacle directly connected to the drain system

Vent gases combined with high moisture inside a chimney will form

The muerto Canyon virus (MCV) is a hantavirus mainly carried by

Muerto canyon virus causes disease of the _ in humans

The general administrative plan of an agency program provides the basis for

Which amendment of the U.S. Constitution protects a nonpublic area from unreasonable searches and seizures?

A standard for dishwashing that states that the "total bacteria count should not exceed on hundred per utensil surface," is an example of what type of objective?

Is the failure to perform an official duty without sufficient excuse

An example of _ is closing down an establishment without first giving a required statutory notice

is the doing of an authorized act in an unauthorized manner

The random inspection approach

Environmental health regulatory staff must be _ first and foremost

When an order has been ignored, the next step is to

When a business authority refuses consent to an inspection, the most appropriate action is to

An individual's rights to be treated with at least a minimum of decency and fairness by governmental officials is guaranteed by the provision of

In planning and implementing an environmental health investigation it is necessary to follow explicit procedure in an ordinance because

Which of the following is generally most useful as legal evidence

The term applied to certain incorporated towns or cities in which the state constitution or legislature gives them the right to formulate and adopt city charters and regulate their own affairs

What is the term given to organization wherin lines of authority and responsibility run upward and downward through several levels with a broad functional base at the bottom and a single executive head at the top

In order to achieve a conviction for failure to obey a violation order, which conditions must be satisfied?

In legal terminology the power of condemnation is also known as

Under negligence law, the sanitarian owes the public a duty

Acid condensates, dust, soot, and smoke are considered

The most dangerous of the particulate air pollutants in terms of human health are

National Ambient Air Quality Standards have been set for all of the following except

Which of the following crops would probably be least affected by air pollution?

The greatest number of casualties as the result of air pollution occurred in

Which of the following metals is most fatal to fish when it becomes dissolved in acid waters?

In most areas, radon concentrations tend to be highest in

The peak seasons for rats to breed in temperate zones are

Rattus norvegicus is also referred to as the

Rattus Rattus is also referred to as

The most widespread cockroach pest in restaurants is

Roaches are capable of spreading

The mosquito genus responsible for the transmission of malaria is

The most prevalent arthropod-borne disease transmitted to humans in the US today is

The insect infestation on humans known as pediculosis is caused by

The variety of rat most common in the US in urban environments is

Mycotoxins are poisonous chemicals produced by

Which animal is the primary reservoir for the newly discovered Hantavirus

A factor or agent which increases the risk of cancer is known as a

In recent years the largest numbers of rabies cases were associated with

The interval between exposure to an infectious agent and the appearance of the first symptom is called the

In order to simplify cleanliness, window sills should be sloped toward the room and down at an angle of _ degrees

Clostridium botulinum spores are killed in

Thawing a 16-pound turkey at 40° F will take a period of _ ?

Which bacteria in large numbers can survive extended storage in cheddar cheese

Adequate light is essential for proper operation, maintenance, and sanitation. A minimum of _ is recommended on work surfaces

For custard-filled pies to be considered safe, they should be heated to

Dry stored goods should be stored off the floor at least _ to prevent their contamination

Practically all foods, whether canned, pickled, cured, or dried

In a dry food storage room, the artificial lighting should provide a minimum of

The final rinse water temperature at the manifold for a heat sanitizing machine dishwasher should be

The final rinse water temperature of a heat sanitizing ware washing machine should cause the surface of the dishes and utensils to reach which temp

The permeability of soil is directly related to the _ of the soil

Grease traps are installed for the purpose of minimizing grease in the sewer system. The trap

Septic tanks serving commercial operations should be inspected for the need for cleaning

The detention time for wastewater in a septic tank is recommended to be

Why should sewage sludge not be used as a soil builder or fertilizer supplement for crops for forage if it has not been properly tested?

Loam is a mixture of gravel, sand, silt, and clay containing what?

What is the most common method of applying wastewater to land?

Which of the following soils would be most suitable for subsurface absorption of wastewater

What two factors determine the groundwater contamination potential from a septic tank

Detention time for septic tanks should be not less than

The scientific name of a certain microorganism is Clostridium perfringens. The second word of this name indicates the

In the environmental planning of a rural subdivision, what basic information would you utilize in determining if both individual water and sewage systems could be placed on each home site?