12.10 Fire Protection

Question 1

What are the 3 types of fire detection?

Answer 1

Thermal switch
Thermocouple
Continuous loop

Question 2

Thermocouples are made of ?

Answer 2

Two dissimilar metals such as chromel and constantan

Question 3

What amps does a thermocouple activate on ?

Answer 3

4 miliaperes

Question 4

What is the resistance in a thermocouple ?

Answer 4

Less than 5 ohms

Question 5

2 types of continuous loop system

Answer 5

Semi-conductor loop
Pneumatic pressure loop

Question 6

How do flame detectors detect fires ?

Answer 6

Picks up on specific wavelengths of light emitted by fire

Question 7

Two types of flame detectors

Answer 7

Infrared
Ultra violet

Question 8

2 types of smoke detectors?

Answer 8

Optical
Ionisation

Question 9

Which smoke detector is more common ?

Answer 9

Ionisation detector

Question 10

3 jobs of a fire extinguishing system ?

Answer 10

Detect fire
Warn crew
Extinguish fire

Question 11

4 types of fire ?

Answer 11

A= wood and paper
B= flammable liquids
C=flammable gas
D= flammable metals