WFSM- SET B (VOLUME 3) EXAM WITH
QUESTIONS AND ANSWERS|| GUARANTEED
PASS|| ALREADY GRADED A+|| LATEST
VERSION 2026
What type piping, 12 inches in diameter, is used in the hydrant loop of a hydrant
loop of a Type 3 system?
A.) carbon steel schedule 80s
B.) carbon steel schedule 40s
C.) stainless steel schedule 20s
D.) stainless steel schedule 10s - ANSWER-C.) Stainless steel schedule 20s
What type steel is used in the control tubing of the Type 3 system?
A.) copper
B.) carbon
C.) galvanization
D.) seamless stainless - ANSWER-D.) seamless stainless
At what differential pressure MUST the receiving strainer in the Type 3 system
be cleaned?
A.) 3 pounds per square inch (psi)
B.) 10psi
C.) 15psi
D.) 20 psi - ANSWER-B.) 10psi
,what happens to the lead second and third refueling pumps when the issue
venturi senses 1800 gpm and the return venturi senses 100 gpm for 15 seconds?
A.) the three pumps continue to run
B.) the third pump is called off the others run
C.) the fourth pump is called on the others are off
D.) only the fourth pump continues to run - ANSWER-A.) the three pumps
continue to run
what happens if the third pump is called on automatically in a type 3 system and
fails to start?
A.) the next pump in the predetermined sequence is called on
B.) only the lead and secondary pump continue to run
C.) an alarm will sound and the entire system shuts off
D.) a light in the pumphouse illuminates and a vibrating horn sounds -
ANSWER-A.) the next pump in the predetermined sequence is called on
which component houses the defuel pump for the type 3 system?
A.) pumphouse
B.) lateral control pit
C.) hydrant outlet pit
D.) hydrant servicing vehicle - ANSWER-D.) hydrant servicing vehicle
which valve during the idle mode opens and allows defueling in the type 3
system?
A.) 58AF-9
B.) 2129AF
C.) 58AF-9-1
D.) 136AF-9B - ANSWER-C.) 58AF-9-1
,When refueling and defueling at the same time where does the fuel begin
defueled go in a type 3 system?
A.) to the product recovery tank
B.) to other aircraft being refueled
C.) to an R-11 refuel\defuel truck
D.) to an issue venturi - ANSWER-B.) to other aircraft being refueled
how many gallons of fuel must be pumped to flush the hydrant loop of a type 3
system containing 42000 gallons?
A.) 42,000
B.) 84,000
C.) 126,000
D.) 168,000 - ANSWER-B.) 84,000
what type of piping is used with the type 4 issue filter separator the system loop
and receiving loop when a 6 inch pipe is used?
A.) seamless steel schedule 40
B.) seamless steel schedule 80
C.) epoxy coated carbon steel schedule 40
D.) epoxy coated carbon steel schedule 80 - ANSWER-A.) Seamless steel
schedule 40
what type piping is used on the pressure relief and drain system for a 2 inch pipe
in a type 4 system
A.) seamless steel schedule 40
B.) seamless steel schedule 80
C.) epoxy coated carbon steel schedule 40
D.) epoxy coated carbon steel schedule 80 - ANSWER-C.) Epoxy-coated
carbon steel, schedule 40
, Thy 40-28G bypass valve (BPV opens and fuel bypasses the receiving
separators when fuel is received from a cross-country pipeline on the Type 3
system. The differential pressure causing this action occurs when
A.) 15 pounds per square inch (psi) is sensed across the receiving separator
B.) 15psi is sensed across the orifice plate on the receiving separator
C.) 10 psi is sensed across the receiving separator
D.) 10 psi is sensed across the orifice plate on the receiving separator -
ANSWER-A.) 15 pounds per square inch (psi) is sensed across the receiving
separator
What type fueling pumps are used in a Type IV cut and cover tank and what is
the capacity
A.) deep well turbine pumps 600 gpm
B.) deep well turbine pumps 1200 gpm
C.) horizontal centrifugal pumps 600 gpm
D.) horizontal centrifugal pumps 1200 gpm - ANSWER-A.) deep well turbine
pumps 600 gpm
to what psi differential is the differential pressure control on the type 4
emergency shut off valve adjusted?
A.) 5
B.) 7
C.) 10
D.) 12 - ANSWER-B.) 7
the swivel joints installed on a type 4 hoseless pantograph are stainless steel
A.) lubricated and welded
B.) lubricated and flanged
C.) non lubricated and welded
D.) non lubricated and flanged - ANSWER-D.) non lubricated and flanged
QUESTIONS AND ANSWERS|| GUARANTEED
PASS|| ALREADY GRADED A+|| LATEST
VERSION 2026
What type piping, 12 inches in diameter, is used in the hydrant loop of a hydrant
loop of a Type 3 system?
A.) carbon steel schedule 80s
B.) carbon steel schedule 40s
C.) stainless steel schedule 20s
D.) stainless steel schedule 10s - ANSWER-C.) Stainless steel schedule 20s
What type steel is used in the control tubing of the Type 3 system?
A.) copper
B.) carbon
C.) galvanization
D.) seamless stainless - ANSWER-D.) seamless stainless
At what differential pressure MUST the receiving strainer in the Type 3 system
be cleaned?
A.) 3 pounds per square inch (psi)
B.) 10psi
C.) 15psi
D.) 20 psi - ANSWER-B.) 10psi
,what happens to the lead second and third refueling pumps when the issue
venturi senses 1800 gpm and the return venturi senses 100 gpm for 15 seconds?
A.) the three pumps continue to run
B.) the third pump is called off the others run
C.) the fourth pump is called on the others are off
D.) only the fourth pump continues to run - ANSWER-A.) the three pumps
continue to run
what happens if the third pump is called on automatically in a type 3 system and
fails to start?
A.) the next pump in the predetermined sequence is called on
B.) only the lead and secondary pump continue to run
C.) an alarm will sound and the entire system shuts off
D.) a light in the pumphouse illuminates and a vibrating horn sounds -
ANSWER-A.) the next pump in the predetermined sequence is called on
which component houses the defuel pump for the type 3 system?
A.) pumphouse
B.) lateral control pit
C.) hydrant outlet pit
D.) hydrant servicing vehicle - ANSWER-D.) hydrant servicing vehicle
which valve during the idle mode opens and allows defueling in the type 3
system?
A.) 58AF-9
B.) 2129AF
C.) 58AF-9-1
D.) 136AF-9B - ANSWER-C.) 58AF-9-1
,When refueling and defueling at the same time where does the fuel begin
defueled go in a type 3 system?
A.) to the product recovery tank
B.) to other aircraft being refueled
C.) to an R-11 refuel\defuel truck
D.) to an issue venturi - ANSWER-B.) to other aircraft being refueled
how many gallons of fuel must be pumped to flush the hydrant loop of a type 3
system containing 42000 gallons?
A.) 42,000
B.) 84,000
C.) 126,000
D.) 168,000 - ANSWER-B.) 84,000
what type of piping is used with the type 4 issue filter separator the system loop
and receiving loop when a 6 inch pipe is used?
A.) seamless steel schedule 40
B.) seamless steel schedule 80
C.) epoxy coated carbon steel schedule 40
D.) epoxy coated carbon steel schedule 80 - ANSWER-A.) Seamless steel
schedule 40
what type piping is used on the pressure relief and drain system for a 2 inch pipe
in a type 4 system
A.) seamless steel schedule 40
B.) seamless steel schedule 80
C.) epoxy coated carbon steel schedule 40
D.) epoxy coated carbon steel schedule 80 - ANSWER-C.) Epoxy-coated
carbon steel, schedule 40
, Thy 40-28G bypass valve (BPV opens and fuel bypasses the receiving
separators when fuel is received from a cross-country pipeline on the Type 3
system. The differential pressure causing this action occurs when
A.) 15 pounds per square inch (psi) is sensed across the receiving separator
B.) 15psi is sensed across the orifice plate on the receiving separator
C.) 10 psi is sensed across the receiving separator
D.) 10 psi is sensed across the orifice plate on the receiving separator -
ANSWER-A.) 15 pounds per square inch (psi) is sensed across the receiving
separator
What type fueling pumps are used in a Type IV cut and cover tank and what is
the capacity
A.) deep well turbine pumps 600 gpm
B.) deep well turbine pumps 1200 gpm
C.) horizontal centrifugal pumps 600 gpm
D.) horizontal centrifugal pumps 1200 gpm - ANSWER-A.) deep well turbine
pumps 600 gpm
to what psi differential is the differential pressure control on the type 4
emergency shut off valve adjusted?
A.) 5
B.) 7
C.) 10
D.) 12 - ANSWER-B.) 7
the swivel joints installed on a type 4 hoseless pantograph are stainless steel
A.) lubricated and welded
B.) lubricated and flanged
C.) non lubricated and welded
D.) non lubricated and flanged - ANSWER-D.) non lubricated and flanged
