UTB14 Utilities Equipment and Maintenance

Question 1

What is the first thing you should do before installing an industrial food grinder?

Answer 1

Read the entire installation manual.

Question 2

What is the function of the impeller in a food grinder?

Answer 2

Pulverize the garbage

Question 3

What diameter waste pipe is needed when installing an industrial sink?

Answer 3

2-inch

Question 4

What is the proper procedure for dislodging something stuck in the impeller?

Answer 4

Use a broom stick

Question 5

What are steam kettles commonly called?

Answer 5

Coppers

Question 6

What is the temperature tolerance of a steam table thermostat?

Answer 6

± 5° F

Question 7

How do you ensure the safe and efficient operation of a range?

Answer 7

Observe a PM schedule.

Question 8

How often should preventative maintenance be performed on the M-59 Field Range?

Answer 8

250 hours

Question 9

What is the maximum time interval allowed before pumping out a grease trap?

Answer 9

3 months

Question 10

What standard is used for all work concerning emergency eye/face wash equipment?

Answer 10

ANSI Z358.1

Question 11

What is sufficient water flow in gallons per minute from a fire hydrant for firefighting?

Answer 11

250 GPM

Question 12

Why are dry hydrants preferable over wet hydrants in cold weather?

Answer 12

They will not freeze

Question 13

Why is a breakaway flange used in the construction of a fire hydrant?

Answer 13

To fracture should large stresses be applied to the hydrant

Question 14

(True or False) A traffic model fire hydrant is used near traffic because it is smaller than a standard fire hydrant.

Answer 14

Flase

Question 15

In which manual are the criteria for fire hydrant locations found?

Answer 15

MIL-HDBK-1008

Question 16

(True or False) Fire hydrants should be located at least 50 feet from a building but never closer than 25 feet.

Answer 16

True

Question 17

What is the most common error made when installing a new fire hydrant?

Answer 17

Improper surface grading

Question 18

What is the minimum distance any utility or equipment should be placed by a fire hydrant?

Answer 18

3 feet

Question 19

(True or False) Utlitiesmen should only be concerned with hydrostatic testing of fire hydrants.

Answer 19

True

Question 20

What is the minimum water pressure from a fire hydrant required for safe firefighting?

Answer 20

20 psi

Question 21

When performing hydrostatic testing, what is the recommended testing medium under pressure?

Answer 21

H20

Question 22

What is the definition of backflow?

Answer 22

Flow of unintended liquids into the potable water supply

Question 23

What is the most common form of backflow?

Answer 23

Back-siphonage

Question 24

How is back-siphonage caused?

Answer 24

Negative pressure upstream

Question 25

What are the classes of water hazards?

Answer 25

Pollutant Health hazard Lethal hazard

Question 26

Which backflow device is the only acceptable means of protecting against lethal hazards?

Answer 26

Air gap

Question 27

What are the hydraulic considerations when installing a backflow preventer?

Answer 27

sizing pressure temperature

Question 28

``` Which is NOT a type of volumetric dry feeder? A. Disk B. Screw C. Belt D. Turbine ```

Answer 28

D. Turbine

Question 29

What part of the regeneration unit should be cleaned thoroughly every 6 months?

Answer 29

The brine measuring tank

Question 30

Baffled mixing basins require cleaning at what regular frequency?

Answer 30

Semiannually

Question 31

What intervals should you check the paddle rotation on flocculator basins to ensure all flocculators are working properly?

Answer 31

Monthly

Question 32

What part(s) of a flocculator basin should be checked for silt penetration?

Answer 32

The underwater bearings

Question 33

Cathodic protection fights corrosion in what manner?

Answer 33

Current flows from the dc source through the soil or water to the metal to be protected.

Question 34

How often should wash water troughs be inspected for corrosion?

Answer 34

6 month intervals | Semiannually

Question 35

Most diatomite filter installations in potable water supply plants are of what type?

Answer 35

Pressure

Question 36

A 30-percent solution of hydrochloric acid should be used to clean porous plate diffusers clogged with_____.

Answer 36

Iron oxide particles