DC 307 Flashcards
What does air blowing out of a sounding tube indicate?
Possible flooding in the tank
What does air sucking into a sounding tube indicate?
Possible fire in the tank
What is an indication of an abnormal sounding reading?
+/- 6inches
What is an AEL used for?
Inventory of a kit bag
What is the process of supporting the bulkheads, decks, and overhead of a compartment to prevent metal fatigue, sagging, and bulging?
Shoring
What is not contained in a shoring kit?
Sounding tape
What sizes do metal shoring come in?
3-5 ft and 6-11 ft
Both models of metal shores fully collapsed have a maximum weight capacity of _____ lbs?
20,000 lbs
What are the advantages of metal shoring over wood shoring?
Metal shoring is adjustable
What types of wood are used for shoring?
Douglas fir and yellow pine
Why are Douglas fir and yellow pine used as wooden shoring?
Because they expand when wet
What are the most utilized types of shoring?
H-type, I-type, & K-type
Which type of shoring is the strongest?
I-type shoring
When is H-type shoring used?
To fit around obstacles
What is not a part of a carpenter square?
The arm
What is a “strong back”?
A bar or beam of wood or metal, often shorter than the shore, used to distribute pressure evenly over a surface requiring shoring, or serve to anchor a patch over a hole
What is a “shole”?
A flat plate,which may be placed under the toe end of a shore, used to distribute pressure or weight and anchor a shore
What is a “shore” ?
A portable beam for reinforcing or adding strength to a bulkhead
What is a “wedge”?
A block that has triangular sides and a rectangular butt end
What is the maximum length of a shore?
30x its minimum butt thickness
Shore angle should never exceed what degrees?
90°
What is the maximum length of a wedge?
6x its minimum butt thickness
Why are wedges used for shoring?
To tighten and hold shoring in place
What is an uncorrected run of shore?
Bulkhead to anchor point
What is a corrected run of a shore?
Subtracting the width of the strongback, wedge, and box patch
For soft patch marlin material, extend ____ inches past both sides of gasket material
2
A _____ rupture is a rupture with no protruding edges located on the straight section of the pipe
Simple
An _____ rupture is a rupture with no protruding edges located on the curved side of the pipe
Elbow
A_____ rupture is a rupture having protruding edges, ruptures in fittings, mangled pipes, and similar piping damage
Compound
A_____ _____is when a section of pipe that has been completely separated
Severed pipe
What must be done after performing a pipe repair?
Perform an op check to test for leaks
An Ewarp patch has a maximum psi of ___?
150 psi
Always wear _____ _____ while installing an Ewarp soft patch
Latex gloves
An Ewarp patch is made of _____?
Fiberglass
What is the cure time for an Ewarp?
30mins
How long must Ewarp be soaked for?
20secs
Ewarp patches can only be used on _____ _____.
Firemain pipes
Always wear a _____ _____ when using a banding kit.
Face shield
What is the primary purpose of the p-100 pump?
Firefighting
What is the secondary purpose of the p-100 pump?
Dewatering
Use a __ inch ____ ______, ___________ hose with the p-100 pump
4 inch hard rubber, non-collapsable
What type of fuel does the p-100 pump use?
JP5
What type of fire hose is used with the p-100 pump?
1 - 1(1/2) inch fire hose
What is the maximum suction lift of the p-100 pump?
50ft
What is the fuel tank capacity of the p-100 pump?
2.45 gal
A perijet has a ___ inch valve and an ___ inch discharge
2.5 ; 8
A perijet extracts water using the_____ effect
Venturi
What is the rated capacity of the P-100?
83gpm @ 100 psi
What does ESP stand for?
Electrical submersible pump
What is the ESP powered by?
440 volts
Who is allowed to operate an ESP?
Only the repair party electricians
When operating an ESP in tandem, which must be started first?
Start with the bottom one first
T/F: The ESP must be primed by the operator before every use?
True
T/F: you can rig an ESP with a peri-jet?
True
What should you not pump with an ESP?
Oil or fuel contaminated water
What is used to keep large objects out of the ESP?
A “Y” type strainer
A peri-jet has a ___ inch inlet and a ___ inch discharge?
2.5 inch; 4 inch
How many jets are inside the Peri-Jet?
6
Peri-jet can pass what size debris?
2 and 1/2 inch
How many jets are inside the s-type educator?
1 jet
