Chapter 13- J&B Driver/ Operator
18. What appliance allows an additional pumper to hook up into an existing relay operation without shutting down the entire relay operation? A. Siamese valve B. Manifold valve C. Relay valve D. Wye valve
answer: C NFPA 1002: 5.2.5, 5.2.5(A), 5.2.5(B) Page: 368
2. What is the minimum number of pumpers required to conduct a relay operation? A. Two B. Three C. Four D. Five
answer: A NFPA 1002: 5.2.5, 5.2.5(A), 5.2.5(B) Page: 360
11. What device must each pumper in a relay operation have installed that will prevent the incoming water supply from reaching an excessively high pressure, which might damage the pump and possibly interrupt the relay operation? A. Intake relief valve B. Flow meter C. Dump line D. Eductor
answer: A NFPA 1002: 5.2.5, 5.2.5(A), 5.2.5(B) Page: 362
7. During a relay operation, when two fire pumpers use different thread on their couplings for hose, what can be used to join the different threaded couplings? A. Adapters B. Siamese C. Manifold D. Reducer
answer: A NFPA 1002: 5.2.5, 5.2.5(A), 5.2.5(B) Page: 364
20. When shutting down a relay pumping operation, what pumper reacts first? A. Attack pumper B. Source pumper C. Relay pumper D. Tanker/tender
answer: A NFPA 1002: 5.2.5, 5.2.5(A), 5.2.5(B) Page: 369
5. What is the purpose of a relay pumper in a relay operation? A. Increase water pressure provided to the next pumper in the operation B. Increase water volume provided to the next pumper in the operation C. Provide additional supply hose for the operation D. Provide additional manpower for the operation
answer: A NFPA 1002: 5.2.5, 5.2.5(A), 5.2.5(B) Pages: 361-362
1. If a municipal water supply is not available, the incident commander may elect to appoint a(n) ___________ officer to oversee the relay or tanker shuttle operation. A. safety B. water supply C. operations D. logistics
answer: B NFPA 1002: 5.2.5, 5.2.5(A), 5.2.5(B) Page: 360
6. What is the preferred size of hose for a relay operation? A. Multiple small-diameter hoselines B. Large-diameter hoseline C. Single medium-diameter hoseline D. Multiple medium-diameter hoselines
answer: B NFPA 1002: 5.2.5, 5.2.5(A), 5.2.5(B) Page: 360
8. During a relay operation, what piece of equipment can a driver/operator use to merge two medium-diameter hoselines into a single large-diameter hoseline? A. Adapters B. Siamese C. Manifold D. Reducer
answer: B NFPA 1002: 5.2.5, 5.2.5(A), 5.2.5(B) Page: 362
12. Once the hose is in place for the relay operation, a driver/operator can determine whether a relay pumper is needed to boost the pressure by calculating the amount of friction loss for the length of the hose lay. A relay pumper is needed if the discharge pressure exceeds _________ for large-diameter hose. A. 50 psi (345 kPa) B. 80 psi (560 kPa) C. 175 psi (1225 kPa) D. 200 psi (1379 kPa)
answer: B NFPA 1002: 5.2.5, 5.2.5(A), 5.2.5(B) Page: 363
16. As the driver/operator of a relay pumper, you must monitor the incoming residual pressure from either the source pumper or another relay pumper. Your goal is to maintain ______ of residual pressure. A. 15 psi (105 kPa) B. 20 psi (140 kPa) C. 25 psi (175 kPa) D. 30 psi (210 kPa)
answer: B NFPA 1002: 5.2.5, 5.2.5(A), 5.2.5(B) Page: 364
17. During a relay pumping operation supplying more than one attack pumper, what device can be used that splits one large-diameter hose into four or five medium-size hose lines? A. Relay valve B. Manifold C. Siamese D. Wye
answer: B NFPA 1002: 5.2.5, 5.2.5(A), 5.2.5(B) Page: 364
3. When setting up a relay pumping operation, what pump should be used as the source pumper? A. The newest pump B. The oldest pump C. The largest pump D. The smallest pump
answer: C NFPA 1002: 5.2.5, 5.2.5(A), 5.2.5(B) Page: 361
9. During a relay operation, what piece of equipment can a driver/operator use to split a single large-diameter hoseline into two or three medium-size hoselines? A. Adapters B. Siamese C. Manifold D. Reducer
answer: C NFPA 1002: 5.2.5, 5.2.5(A), 5.2.5(B) Page: 362
13. Once the hose in place for the relay operation, a driver/operator can determine whether a relay pumper is needed to boost the pressure by calculating the amount of friction loss for the length of the hose lay. A relay pumper is needed if the discharge pressure exceeds _____________ for medium-diameter hose. A. 50 psi (345 kPa) B. 80 psi (560 kPa) C. 175 psi (1225 kPa) D. 200 psi (1379 kPa)
answer: C NFPA 1002: 5.2.5, 5.2.5(A), 5.2.5(B) Page: 363
15. What type of relay pumping operations requires the driver/operator of the source pumper to obtain from the attack pumper the flow required for the fire operations, then calculate the friction loss for each hose layout in the relay and add 20 psi (140 kPa) for residual pressure at the attack pumper? A. Constant pressure B. Variable pressure C. Calculated flow D. Variable flow
answer: C NFPA 1002: 5.2.5, 5.2.5(A), 5.2.5(B) Page: 364
4. What is a limitation of the attack pumper in a relay operation beginning attack operations prior to the source pumper supplying a water source? A. Number of intakes on the attack pumper B. Size of hose used as supply line C. Capacity of source pumper's water tank D. Capacity of attack pumper's water tank
answer: D NFPA 1002: 5.2.5, 5.2.5(A), 5.2.5(B) Page: 361
10. During a relay operation, what piece of equipment can a driver/operator use to connect larger single hoselines with smaller single hoselines? A. Adapters B. Siamese C. Manifold D. Reducer
answer: D NFPA 1002: 5.2.5, 5.2.5(A), 5.2.5(B) Page: 362
14. At what pump discharge pressure would a source pumper be pumping to an attack pumper flowing 500 gpm (1893 LPM) if the source pumper is 400 ft (122 m) away and has connected to the attack pumper with two 3-inch (76 mm) hoselines? The friction loss for 100 feet (30 m) of 3-inch (76-mm) hose is 6 psi (41 kPa). A. 6 psi (41 kPa) B. 12 psi (83 kPa) C. 24 psi (165 kPa) D. 44 psi (303 kPa)
answer: D NFPA 1002: 5.2.5, 5.2.5(A), 5.2.5(B) Page: 364
19. Pressure fluctuations greater than _________ during a relay operation could cause hoseline failure or pump damage. A. 125 psi (875 kPa) B. 150 psi (1050 kPa) C. 175 psi (1225 kPa) D. 200 psi (1400 kPa)
answer: D NFPA 1002: 5.2.5, 5.2.5(A), 5.2.5(B) Page: 369
