Deck 13: Utility Systems

Question 1

Coagulation __________ the negative charges of suspended solids.:

A) enhances
B) dissipates
C) neutralizes
D) accumulates

Answer 1

neutralizes

Question 2

Flocculation is a term used to describe the ________ ________ of coagulated particles.

A) neutralizing effect
B) polar kinetics
C) polluted concentration
D) bridging together

Answer 2

bridging together

Question 3

Common coagulants include all of the following except: Circle all!

A) aluminum
B) iron salts
C) ferric sulfate
D) alum
E) sulfur

Answer 3

sulfur

Question 4

It takes _____ Btu to change one pound of water to steam.

A) one
B) 970
C) 212
D) 100

Question 5

Heat stored in this form is often associated with:

A) the latent heat of condensation
B) the latent heat of vaporization.
C) sensible heat
D) radiant heat

Question 6

A deaerator is a device used to:

A) remove air from water
B) remove hydrocarbons from condensate
C) enrich oxygen content in boiler feed water
D) store treated boiler feed water

Question 7

The typical pressure of the SHP steam is:

A) 180 to 200 psig
B) 400 to 800 psig
C) 1000 to 1200 psig
D) 2000 to 2200 psig

Question 8

It takes ______ Btu to raise the temperature of one pound of water one degree Fahrenheit.

A) one
B) 970
C) 212
D) 100

Question 9

What is the term given for the total energy due to both the pressure and temperature of a fluid such as steam

A) Enthalpy
B) Absolute pressure
C) British Thermal Unit
D) Specific Heat Capacity

Question 10

A measure of the ability of a substance to absorb heat.

A) Convection
B) BTU
C) Enthalpy
D) Specific Heat Capacity

Question 11

Flare systems are used to:

A) safely burn excess hydrocarbons
B) remove excess hydrocarbons from a variety of plant processes.
C) burn hazardous waste
D) a & b

Question 12

List the 4 major steps in a refrigeration system.

Question 13

Draw a steam system with high, medium and low pressure steam, a condensate return header, a deaerator, and boiler feed water system.

Question 14

Sketch a simple flare system.

Question 15

Aluminum and iron have _______ positive charges that _______ the negative charges of the suspended solids.

A) two, balance
B) three, counter
C) four, enhances
D) five, overwhelm

Question 16

Chemical precipitation uses a chemical to react with dissolved minerals in feed water to form a _________ ________ that drops harmlessly out of solution.

A) gaseous precipitate
B) liquid precipitate
C) solid precipitate
D) inert material

Question 17

Corrosion prevention is characterized by all of the following except:

A) maintaining pH levels in boiler feed water
B) removing dissolved oxygen from water
C) using chemical treatments
D) following blow-down procedures.
E) adding oxygen and chemical inhibitors to feed water

Question 18

Corrosion is a complex _____________ reaction that can attack a large area or a small pinpoint area.

A) magnetic
B) nuclear
C) electrochemical
D) dissolution

Question 19

The purpose of a conservation vent is to:

A) conserve release of hydrocarbons
B) regulate pressure in a tank during operation.
C) keep rain out
D) a & c

Question 20

Why do boilers and cooling towers need to be blown-down periodically?

A) high parts per million of suspended solids
B) high pH levels
C) improve water quality
D) all the above

Question 21

Poor water quality will produce poor-quality steam.

Question 22

The primary causes of boiler water carryover include all of the following except:

A) foaming
B) aquaglobejection
C) load changes
D) steam contamination
E) electrochemical reaction

Question 23

When minerals are dissolved in water they form:

A) calcium
B) ions
C) hydrogen
D) acids

Question 24

Ionic resins come in two types:

A) acidic and caustic
B) hot and cold
C) granular and liquid
D) anion and cation

Question 25

Blowdown is a term used to describe:

A) removal of water from boilers and cooling towers
B) removal of 5%-10% of total water capacity
C) high electric conductivity of the water in boiler or cooling tower
D) all the above

Question 26

Anion resins react with:

A) negatively charged ions
B) water
C) positively charged ions
D) magnesium chloride

Question 27

A cooling water system is typically designed to have a temperature range of:

A) 70ºF supply and 130ºF return temperature
B) 100ºF supply and 140ºF return temperature
C) 90ºF supply and 120ºF return temperature
D) 80ºF supply and 160ºF return temperature

Question 28

The recirculating cooling water concentration ratio on a cooling tower is typically designed for a minimum of _______ cycles and is controlled by blowdown.

A) five
B) seven
C) nine
D) over ten

Question 29

The power received from electric supply companies is generally at voltage levels of:

A) 100 to 160 kV
B) 13.8 kV
C) 4160 V
D) 120V-240V

Question 30

Voltmeters are connected in ________ with wires in an electric circuit.

A) series
B) combination
C) parallel
D) compliance

Question 31

As boiler feed water temperature increases, impurities precipitate (fall out) and adhere to the hot metal surfaces of the boiler, forming ___________.

A) scale
B) ions
C) acid
D) hydrogen

Question 32

Please identify the following components: