HH Hoses And Hydrants

Question 1

Red hose diameter?

Answer 1

45 and 70mm

23 meters long

9kg and 15kg

Max pressure of 15 Bari

4 lengths of 45mm and 10 lengths of 70mm carried in appliance

Question 2

Yellow hose usually supply’s water to pump.

Soft/hard suction hose

Answer 2

.

Question 3

How often should an operational test of a hydrant take place?

Answer 3

Every 4 years.

Between April and September

Question 4

Projet 2 flow rates and pressures?

Answer 4

7 bar

630 jet
300 spray

930 jet and spray

3.5 bar
440 as jet
640 as jet and spray
200 as spray

57m throw

Question 5

Top number on hydrant sign?

Answer 5

Size of main it’s attached to in millimetres or inches.

Question 6

Does the LFB pay for the water used when firefighting?

Answer 6

NO

Question 7

Deciding breaching?

Answer 7

Supply’s two female outlets from one water supply.

Question 8

Size of round thread in all British hydrants for stand pipe to be attached?

Answer 8

65mm

Question 9

Ultimatic flow rate?

Answer 9

115-150 lpm

Question 10

Minimum water flow rate and pressure from a hydrant?

Answer 10

2000 litres per min

1.7 bar

Question 11

Requirements of a good hose?

Answer 11

Reliable in use

Redid it and to bursting or damage through use

Not stretch excessively

Light and easy to handle, and easy to make up

Durable

Smooth surfaced

Capable to changing pressure and shock

Question 12

2 tests on a hose are?

Answer 12

Visual inspection

Pressure test

Question 13

4 diameters of layflat hose?

Answer 13

45mm
70mm
90mm
150mm

Question 14

Storz couplings?

Answer 14

Used on 90mm/150mm yellow hose

Question 15

90mm hose?

Answer 15

Yellow in colour

30 meters long

23.5kg

Max 15bar

4km of hose carried on appliance

Question 16

Adding new length of hose or changing busy hose during firefighting must?

Answer 16

Minimise interruption

Garentee safety of branch operator

Question 17

When should dirty hose be cleaned?

Answer 17

ASAP on return to station.

Question 18

British hydrant standards?

Answer 18

65mm round thread

Open anti clockwise.

Supply at least 2000lpm

At least 1.7bar

Question 19

Procedure involving removing hydrant cover, connecting standpipe and flushing hydrant is called?

Answer 19

Setting into the hydrant.

Question 20

Akron mercury ground monitor?

Answer 20

Can deliver water or foam

Flow rate 950 - 1900 lpm

Only used under instruction from incident commander

Supplied by 70mm hose

7 bars of pressure at branch

Hose laid straight behind where possible

Question 21

Branch tally?

Answer 21

Tag on pump, then put on branch to ensure water is supplied to right branch

Question 22

Rosenbauer projet 2?

Answer 22

Larger then RB101

Works between 3.5 and 7 bar

57m throw

Can produce jet and spray at same time

Always 2 firefighters when using

630lpm when using jet to 930lpm for jet and spray

Question 23

2 types of female couplings?

Answer 23

Two pull release spring loaded plungers.

Single twist release spring loaded plunger.

Question 24

Collecting breaching?

Answer 24

Combines two low pressure supplies, and converts to one.

Question 25

Red hose usually delivers water to fire. Delivery hose

Answer 25

.

Question 26

Hose repair?

Answer 26

Rolled from male coupling China graph pencil outlining defect Tied on label, hose ID number, station number, details of defect

Question 27

Rosenbauer RB101 branch?

Answer 27

Multiple flow rate 65mm male coupling Working pressure at 6 bar, can still work at 3 bar Multi pattern (jet and spray) 130 - 400 lpm

Question 28

How often should hose be rotated between appliance and reserve store?

Answer 28

Every 3 months.

Question 29

Where is 90mm yellow layflat hose carried?

Answer 29

Hose laying appliances

Question 30

Hydrant kit consists of?

Answer 30

Stand pipe Hydrant key Hydrant bar

Question 31

2 types of leak detection devices in hydrants?

Answer 31

Magnetic and screw on.

Question 32

Red dots must be inline on storz couplings before being pressurised.

Answer 32

.

Question 33

Delta branch flow rates?

Answer 33

130 230 300 400

Question 34

Hard suction hose?

Answer 34

Supply’s water to pump from open source. (Lake/river etc) 2.44 meter long 100mm diameter 2 on each appliance

Question 35

Hose reel branch flow rates?

Answer 35

50 100 150 230 lpm

Question 36

4 diameters of lay flat hose?

Answer 36

45mm 70mm 90mm 150mm

Question 37

90mm hose adaptor kit?

Answer 37

Used to connect storz coupling on 90mm hose layer hose (yellow) to instantaneous coupling on 45/70mm (red) hose I 2 meter long, yellow hose Storz coupling one end, instantaneous other end Carried in red NATO box 2 carried on pumping appliances

Question 38

Max pressure of 45mm/70mm/90mm hose?

Answer 38

15 bar

Question 39

What allows a hydrant to drain after use, and prevents freezing and cracking in winter?

Answer 39

The drain boss bolt.

Question 40

Bandit strap?

Answer 40

Colours strap around female coupling. Identification. Yellow-southern Orange-east Green-west Black- training

Question 41

Hose coupling?

Answer 41

End of hose, used to connect two lengths together

Question 42

Cate of hose?

Answer 42

Ramped in roads Not kinked under pressure Not made up when frozen Under run and cleaned before stowing

Question 43

Who is responsible for making sure there is an adequate supply of water?

Answer 43

LFEPA LFB

Question 44

Bottom number on hydrant sign?

Answer 44

Distance to hydrant in feet or metres.

Question 45

Jet reaction?

Answer 45

Pushing back from branch when water is turned on. Can be reduced by safe and stable position Start with pressure and flow rate that can be controlled 2 firefighters Open and close branch slowly Hose in straight line behind branch

Question 46

When should hose be tested?

Answer 46

Upon acceptance After use Annually at workshops

Question 47

Full PPE must be worn when handling hose.

Answer 47

.

Question 48

Which way does a hydrant open?

Answer 48

Anti-clockwise

Question 49

Rosenbauer projet 2 flow rate?

Answer 49

630-930lpm

Question 50

45mm hose weight?

Answer 50

9kg

Question 51

Where does water in hydrants come from?

Answer 51

Mains water supply.

Question 52

Delta branch flow rates and pressures?

Answer 52

3-6 bar 130 230 300 2man 400 2 man litres per min Also flush setting

Question 53

Size of internal bores on 45/70 mm red hose?

Answer 53

65mm regardless of hose diameter

Question 54

Main branch used by LFB?

Answer 54

Delta branch

Question 55

Hose reel length?

Answer 55

18 meteres 4 lengths each side 22mm inner diameter

Question 56

How to test hose?

Answer 56

4 man job. Pressure to 15 bar, 1 min Walk the hose, 300mm

Question 57

Ultimatic hose reel branch?

Answer 57

Used on high pressure hose reel on side of appliances. Permanently attached to hose reels Can be connected to 65mm hose coupling with adaptor Different spray patterns Flow rate 115 - 150 lpm

Question 58

Defective hose should be rolled up, (not Dutch rolled) from male coupling.

Answer 58

.

Question 59

150mm hose?

Answer 59

Yellow in colour Carried on high volume pump 50meters 10 meters or 5 meters long

Question 60

Akron ground minutes pressures and flow rates?

Answer 60

3.5-7 bar 950/1400/1900 lpm

Question 61

70mm layflat hose weight?

Answer 61

15kg

Question 62

Ground monitor?

Answer 62

Type of Branch designed to operate at ground level unattended when: Large amounts of water of foam. Application for long time periods Appliance from a distance

Question 63

150mm hose lengths?

Answer 63

5 10 50 Meters

Question 64

How is mains water pressurised?

Answer 64

By gravity initially, then by pumping station.

Question 65

Main layflat hoses carried on pumps and pump ladders?

Answer 65

45mm and 70mm

Question 66

Hose reel hose?

Answer 66

Used to deliver water at high pressure. Stored on side of appliance Internal diameter of 19mm 18.4 meter long

Question 67

Instantaneous hose couplings?

Answer 67

Used on 45mm/70mm red hose

Question 68

How often should a visual inspection of a hydrant take place?

Answer 68

Yearly

Question 69

Type of British standard hydrant? What’s it called?

Answer 69

Screw down hydrant

Question 70

Lip on male instantaneous coupling?

Answer 70

Annular lip

Question 71

Supplied from the appliance tank how much water can the pump deliver?

Answer 71

2700lpm

Question 72

What does the flow meter mesure?

Answer 72

Flow of water going into water tank

Question 73

What are the flow rates and optimal pressure for the akram ground monitor?

Answer 73

7 bar of pressure at branch. 950 1400 1900 lpm

Question 74

When would a akram ground monitor be used?

Answer 74

When a larger flow rate than a hand held branch is required. When a greater throw is required to fight fire from a greater distance. When extinguishing media needs to be applied for a longer period of time.

Question 75

Flow rate for akram ground monitor when using foam?

Answer 75

950 lpm

Question 76

What flow rate on the akram ground monitor when the deluge nozzle is used?

Answer 76

1750lpm

Question 77

What is the degree of movement a akram ground monitor has? How many degrees?

Answer 77

30-60 degrees up and down. (Can be moves an extra 29degrees if fire fighter pushed down, and stays, to prevent jet reaction.) 20 degrees either side from center.