Quiz 2- Commercial Wiring - Unit 6

Question 1

An ancillary device is a device from another protection system that is actuated by the fire alarm system.

Answer 1

True False

Question 2

An annunciator is a device used for

Answer 2

Audio alerts

Visual display

Both A and B

Question 3

‘Class A’ circuits requires no end-of-line resistor, and ‘Class B’ circuits require and end-of-line resistor

Answer 3

True
False

Question 4

Electrical supervision means,

Answer 4

The circuit is monitored and a fault will cause normal operation

The circuit is not monitored and a fault will cause the circuit to respond

The circuit is monitored and a fault will interfere with normal operation

Question 5

Heat and Smoke detectors aren’t a form of fire detector.

Answer 5

True
False

Question 6

Trouble signals have,

Answer 6

A signal for sight and sound

A signal for audio only

A signal for visual only

Question 7

An Alarm signal has,

Answer 7

Audible and visual signals

Audible signal

Visual signal

Both B and C

Question 8

Single-stage fire alarm systems will

Answer 8

Cause a trouble signal to sound immediately on all audible alarm devices

Cause an alarm signal to sound immediately on all visual devices

Cause an alarm signal to sound immediately on all audible alarm devices

Question 9

Two-stage fire alarm systems will

Answer 9

Initiate an alert signal, followed by an alarm signal if not acknowledged within five minutes

Initiate an alert signal, followed by a trouble signal if not acknowledged within five minutes

Both A and B

Question 10

The four main stages of a fire are….incipient, smouldering, flame, heat

Answer 10

True
False

Question 11

Most fatalities are caused from inhalation of smoke and toxic gases rather than from burns.

Answer 11

True
False

Question 12

With fire alarm systems the primary purpose is to ________ and the secondary purpose is to ________,

Answer 12

Protect property, protect lives

Protect lives, protect property

Protect firefighters, protect first responders

Question 13

Some types of occupancies that require fire alarm systems are

Answer 13

Buildings with more than 300 occupants

Buildings with more than three storeys which includes basements or levels below grade

Buildings with contained use areas such as jails or mental health centers

A school, college or daycare with 40 or more occupants

A building of residential occupancy with sleeping accommodation of more than 10 occupants

All of the above

Question 14

Major occupancies have six main categories known as, Assembly, Institutional, Residential, Business, Mercantile, and Industrial.

Answer 14

True
False

Question 15

Classification of major occupancies have groups A,B,C,D,E, and F, these groups also have Divisions which give more description to the groups.

Answer 15

True

False

There is no description indicated

Question 16

According to Figure 6-5 ceiling and/or wall-mounted smoke or heat detectors should never be placed within 150mm (6 inches) from the corner connecting a wall and ceiling.

Answer 16

True
False

Question 17

What types of building systems protect occupants and structures from fire?

Answer 17

Suppression

Detection

Active

Passive

Anunciating

All of the above

Only A,B,D

Question 18

Passive systems can include fire walls, fire resistance ratings, and smoke control.

Answer 18

True
False

Question 19

Detection/signalling systems are designed to detect a fire but not warn the occupants of any potential hazard.

Answer 19

True
False

Question 20

Diluting, cooling, smothering, and inhibiting chain reaction are parts of a

Answer 20

Passive system

Suppression system

Detection system

Signalling system

Question 21

In Figure 6-6, the fire alarm system has an end-of-line resistor. This type of system is known as

Answer 21

Class A

Class B

Question 22

Photoelectric type smoke detectors have a light sensor that measures the amount of light in a chamber. When smoke is present, light is reflected off the smoke which triggers the alarm.

Answer 22

True
False

Question 23

Ionization type detectors are designed in such a way that when smoke enters a chamber, it impedes the movement of ions, reducing current flow, which causes an alarm.

Answer 23

True
False

Question 24

Rate-of-rise heat detectors sense

Answer 24

A rapid change in smoke temperature

A rapid change temperature over a period of time

A rapid change in smoke over time

All of the above

Question 25

What type of fire alarm system circuit represents 80% to 90% of all installed systems?

Answer 25

Class B

Question 26

Figure 6-14 indicates that a Class A system is a 2-wire, and a Class B system is a 4-wire.

Answer 26

True
False

Question 27

What CEC section covers the installation requirements for fire alarm system

Answer 27

Section 18

Section 46

Section 32

Question 28

Fire pumps require no overload or overheating protection.

Answer 28

True 32-310

False 32-310

Depends on the condition and overcurrent protection.