25 Sprinklers, fire detection, alarm panels & elevator operation

Question 1

What are the 10 safety disciplines related to safety codes? 25/6

Answer 1

1. Building 2. Fire 3. Electrical 4. Gas (Natural and propane) 5. Plumbing 6. Private sewage 7. Boilers and pressure vessels 8.Elevators 9. Amusement rides 10 Passenger rope ways The Fire code maintains what the building code builds.

Question 2

What is the minimum residual pressure that has to be delivered to the highest sprinkler head?

Answer 2

100kpa

Question 3

What are the six advantages of an automatic sprinkler system? 25/8

Answer 3

1. Most reliable fire protection device 2. Rarely fail to operate 3. Control and extinguish 96% of fires 4. Create less business interruption and water damage 5. Enhance life safety 6. Reduce insurance costs

Question 4

Name some reasons why automatic sprinkler systems could fail? 25/9

Answer 4

1. Partially or completely closed water main valve 2. Interruption of the municipal water supply 3. Sprinkler heads were damaged or painted over 4. Broken pipes 5. Debris or sediment in the pipes 6. Vandalism

Question 5

What are the four basic functions of a sprinkler system? 25/10

Answer 5

1. Detect fire presence 2. Alarm or transmit a signal to agencies indicating alarm is activated 3. control growth of the fire 4. extinguish the fire completely

Question 6

What are the 5 methods of detection? 25/10

Answer 6

1. Fixed temp. detection 2. Rate of Rise detection 3. Smoke detection 4. Flame of Flash detection 5. Vapour detection

Question 7

Name 6 types of sprinkler systems? 25/12

Answer 7

1. Wet systems 2. Dry systems 3. Pre- Action 4. Deluge System 5. Residential system 6. Halogenated, dry chemical, co2 systems

Question 8

Where does the FD tie in in wet pipe systems? 25/12

Answer 8

Above the main control valve

Question 9

Where does the FD tie in, in dry pipe systems? 25/13

Answer 9

Before the dry pipe valve

Question 10

What are 4 sprinkler head mechanisms? 25/16

Answer 10

1. Fusible link 2.Fusible link quick response 3. Chemical pellet 4. Frangible bulb

Question 11

3 ways a sprinkler can be oriented? 25/17

Answer 11

1. Pendant orientation 2. Upright sprinkler orientation 3. Sidewall sprinkler orientation

Question 12

A standpipe system is? 25/20

Answer 12

An arrangement of piping, valves, hose connections and allied equipment installed in a building or structure.

Question 13

The purpose of the standpipe is? 25/20

Answer 13

to shorten the length of supply and fire attack hose lines

Question 14

A standpipe is? 25/20

Answer 14

the riser portion of the system piping that delivers the water supply for hose connections and sprinklers on combined systems vertically from floor to floor

Question 15

3 types of standpipe systems? 25/21

Answer 15

• Dry system – not filled with water until needed in firefighting. Used only by firefighters. Must be manually charged by fire department. • Wet system – standpipe is filled with water and is pressurized at all times. • Wet/Dry Combination system – Portions of the system are pressured with water and other portions are pressured with air.

Question 16

Standpipe systems can be divided into 3 classes? 25/21

Answer 16

• Class I - provides 65mm hose line connections to supply water. These are usually found in the stairwells of the high rise structure or at dedicated areas within a warehouse. • Class II – provides 38mm hose cabinets that may be used by either occupants or firefighters. • Class III – provides both a Class I and Class II standpipe system – hose cabinet and standpipe connection. The 65mm connection may be in the stairwell or found in the hose cabinet.

Question 17

What are the 3 types of fire alarms? 25/29

Answer 17

1. Conventional supervised
2. Multiplex or Fully adressable Systems
3. Proprietary or central station

Question 18

2 Fire alarm stages? 25/31

Answer 18

1. Single Stage alarm
2. Two Stage alarm

Question 19

The 5 steps to reset or silence a Fire Alarm system? 25/35

Answer 19

1. Check annunciator panel
2. Identify the location of the alarm
3. Acknowledge the alarm on the panel, provided there is an acknowledge button
4. Investigate the situation
5. If it is determined that no problem exists, reset the panel

or If the cause is undetermined, silence the system. Silencing will reduce call backs for false alarms

Question 20

What are 3 types of elevators? 25/36

Answer 20

1. Split Bank
2. Blind shaft
3. Freight elevators