Deck 3: Piping and Vessels

Question 1

How does increased temperature affect the performance of metals?

A) decreases as temperature increases
B) increases as temperature increases
C) is not affected by temperature

Answer 1

decreases as temperature increases

Question 2

Why are brass tubes used instead of carbon steel in many heat exchangers that use water as the cooling medium?

A) high resistance to thermal expansion
B) brass is less expensive
C) high resistance to water containing various impurities
D) easier to cut and install

Answer 2

high resistance to water containing various impurities

Question 3

What metal would you use for a vessel containing non-corrosive material at 100 psig and 300˚F?

A) carbon steel
B) hasteloy
C) stainless steel
D) nonferrous alloy

Answer 3

carbon steel

Question 4

List the important facts associated with pipe size and diameter.

A) most pipe used in plants is: 1/2", 3/4", 1", 1 1/2", 2", 3", 4", 6", 8", 10", 12", and 14" and higher.
B) the term schedule (40 or 80) refers to the actual thickness of the pipe wall.
C) the inside and outside diameter of a pipe is slightly different.
D) all of the above

Question 5

What is a nonferrous alloy?

A) a metal or alloy that contains iron
B) a metal or alloy that does not contain iron
C) a key element in brass
D) a key element in aluminum

Question 6

Would you use carbon steel, brass, stainless steel, or hasteloy in a hot, extremely corrosive process?

A) brass
B) stainless steel
C) hasteloy
D) carbon steel

Question 7

What type of shut off does a paddle blind provide?

A) partial shut-off
B) double-block and bleed
C) positive shut-off
D) figure eight closure

Question 8

What two types of blinds do we use?

A) paddle and figure eight
B) solid and wedge
C) flat and plate
D) orifice and paddle

Question 9

What information do process technicians find on vessel design sheets?

A) total cost of equipment
B) the factors entering into the selection, use, and need for periodic inspection of materials used to make vessels.
C) the factors or variables of each process and system
D) manufacturer code stamp listings

Question 10

What is an alloy steel?

A) steels that contain 1% or more of alloying metals
B) steels that contain 5% or more of alloying metals
C) steels that contain 10% or more of alloying metals
D) all of the above

Question 11

What is corrosion, and how is it manifested?

A) binds alloys to oxygen, loss of metal, pitting, grooving, cracking
B) deteriorates equipment; loss of metal, pitting, grooving, cracking
C) a chemical reaction that melts bonds; forms rust
D) deteriorate metal by forming high pH solvents

Question 12

What factors determine how thick a vessels walls should be?

A) anticipated corrosion rates
B) strength of material used
C) temperature and pressure
D) all of the above

Question 13

What metal is used for extremely low temperatures (below - 150˚F)?

A) carbon steel
B) Type 304 stainless steel
C) brass
D) a & c

Question 14

Select the various inspection procedures used in a process plant.

A) visual, electronic-sonic, x-ray, magnetic
B) f-max, post hoc, biserial correlation inspection
C) standard deviation, time chart inspection
D) spearman rank correlation, magnetic particle inspection

Question 15

Tanks, drums, and vessels are typically classified as:

A) low and high pressure
B) liquid and gas service
C) insulated, steam traced, and water cooled.
D) all the above

Question 16

The threads on screwed piping is treated with _______ before joining.

A) Teflon tape
B) Thread compound
C) combination of Teflon and thread compound
D) all the above

Question 17

Spherical and spheroidal storage tanks are designed to store gases or pressures above:

A) 1 psig
B) 3 psi
C) above 5 psig
D) below 5 psig

Question 18

Spheroidal tanks are __________ than spherical tanks.

A) rounder
B) bigger
C) flatter
D) thicker

Question 19

Common storage designs include all the following except:.

A) spheres
B) spheroids
C) cylindrical tanks
D) columns & towers

Question 20

A tank farm is best described as:.

A) a facility engineered to construct process tanks.
B) a military installation designed to assemble military parts.
C) tanks, pipes, pumps, instruments and valves.
D) a collection of tanks designed to safely store and transport raw materials and products.

Question 21

A manway is best described as:.

A) an insulated system designed to hold in heat or cold.
B) a cylindrical device used to clean out pipes and tanks.
C) a hatch or port used to provide open access into a tank.
D) a flat face flange used to connect piping to equipment

Question 22

A Datum plate is:.

A) a reference point on the bottom of a tank used to measure liquid level.
B) used to calculate the pressure difference in a flow transmitter.
C) used to prevent electrochemical reactions.
D) a flat hatch or port

Question 23

A pig is:.

A) an industrial term used to describe a restriction in a system.
B) a cylindrical device used to clean out pipes.
C) another name for a hemispheroidal tank.
D) an electrical connection used with high voltage.

Question 24

Process technicians use ______________ to calculate the volume in a tank:.

A) tankage
B) volume tables
C) load cells
D) strapping tables

Question 25

A 55-gallon barrel typically holds:.

A) 42 gallons
B) 46 gallons
C) 50 gallons
D) 55 gallons

Question 26

All of the following are examples of floating roof tanks except:.

A) pan type
B) pontoon type
C) atmospheric membrane
D) double deck

Question 27

All of the following are examples of pressure storage vessels except:.

A) drum
B) cone
C) sphere
D) speroid

Question 28

The welded joint on a cone-roof where the roof joins the shell is :.

A) engineered stronger due to higher vapor pressures near the top
B) purposely made weaker than other joints so that it will burst and relieve pressure and not spill contents.
C) helps confine the fluid should a fire or explosion occur inside a tank.
D) B & C

Question 29

Gas-blanketed tanks are used to:.

A) store hazardous feedstocks
B) reduce air, reduce flammability and explosive range of vapors
C) cool-off product by holding molecules closer to the liquid
D) A & B

Question 30

Water draws are provided at:

A) the top
B) the middle
C) the bottom
D) are not provided in hydrocarbon systems

Question 31

Traditional diking uses:

A) fire protection, barricades, and trenches
B) concrete pads and drainage systems
C) firewalls, dikes, sloping grade and pits
D) elevated dikes that surround a single tank

Question 32

Modern diking includes:

A) fire protection, barricades, and trenches
B) concrete pads and drainage systems
C) firewalls, dikes, sloping grade and pits
D) elevated dikes that surround a single tank

Question 33

Bonding is achieved by:

A) connecting an object to the earth with a rod
B) physically connecting two objects together with a copper wire.
C) allowing electric sparks to discharge
D) adhering objects together with a chemical

Question 34

Grounding is achieved by:

A) connecting an object to the earth with a rod
B) physically connecting two objects together with a copper wire.
C) allowing electric sparks to discharge
D) adhering objects together with a chemical

Question 35

A conservation vent is used with the following term:

A) conserving
B) breathing
C) tank terminology
D) gas-blanket

Question 36

Gauge hatches are used for all of the following except:

A) provide pressure relief
B) allow contents to be measured
C) prevent loss of vapor and let rain in
D) pumping out water

Question 37

Flame arrestors are typically mounted in:

A) a vent
B) a pipe
C) a stack
D) gauge hatches

Question 38

Hemispheroidal tanks have a pressure range of:

A) 2.5 to 15 psig
B) 5 to 10 psig
C) atmospheric to 55 psig
D) atmospheric to 150 psig

Question 39

If a tank is rated as a 5,000 bbl tank it can safely store:

A) 160,000 gallons
B) 230,000 gallons
C) 210,000 gallons
D) 275,000 gallon