Chapter 20 Pre Quiz

Which type of fire suppression system uses open sprinklers that all discharge water simultaneously when the system is activated? Select one: a. Deluge sprinkler system b. Wet-pipe sprinkler system c. Dry-pipe sprinkler system d. Monsoon sprinkler system

a. Deluge sprinkler system

Which sprinkler release mechanism activates when alcohol or glycerol liquid expands, shattering a bulb that releases a valve cap? Select one: a. Frangible bulb b. Fusible link c. Bimetallic strip d. Chemical pellet

a. Frangible bulb

Which type of alarm-initiating device is activated by the presence of products of combustion? Select one: a. Smoke detector b. Pull station c. Flame detector d. Heat detector

a. Smoke detector

A central station alarm system is monitored by: Select one: a. a contracted service. b. municipal fire station personnel. c. building occupants. d. the building owner/manager.

a. a contracted service.

Bimetallic heat detectors are activated by ___ of heated material. Select one: a. expansion b. ionization c. vaporization d. melting

a. expansion

A minimum water supply must deliver the required volume of water to the highest sprinkler in the building at a residual pressure of: Select one: a. 25 psi (173 kPa). b. 15 psi (105 kPa). c. 20 psi (138 kPa). d. 10 psi (69 kPa).

b. 15 psi (105 kPa).

Which of the following statements about fire department connections (FDC) is MOST accurate? Select one: a. Fire department connects should be supplied from pumpers with a capacity of 100 gpm (400 L/min) or greater. b. A fire department connect may be one large-diameter connection attached to a clappered inlet. c. Fire department pumpers supplying fire department connections should connect to the same main as the sprinkler system supply. d. A fire department connect may be one 2 ½ inch (65 mm) female connection with a clapper valve.

b. A fire department connect may be one large-diameter connection attached to a clappered inlet.

Which type of sprinkler system is designed with open-head sprinklers to quickly supply a large volume of water to the protected area? Select one: a. Accelerator system b. Deluge system c. Wet-pipe system d. Class II system

b. Deluge system

Which type of smoke control system or method uses mechanical ventilation along with the properties of smoke to collect smoke at the highest point in a large space? Select one: a. Pressurization b. Exhaust c. Passive d. Opposed air flow

b. Exhaust

What is an advantage of dedicated smoke control systems? Select one: a. Less chance of component failure due to normal use b. Operation and control are simpler than other systems c. Controls likely modified during maintenance d. Less space needed for mechanical equipment

b. Operation and control are simpler than other systems

Which type of indicating valve has the threaded portion of the stem visible when the valve is open, not visible when the valve is closed? Select one: a. Post indicator valve (PIV) b. Outside stem and yoke c. Post indicator valve assembly (PIVA) d. Wall post indicator valve (WPIV)

b. Outside stem and yoke

Which type of system employs a deluge-type valve, fire detection devices, and closed sprinklers? Select one: a. Water curtain system b. Preaction system c. Class III system d. Exhauster system

b. Preaction system

What sprinkler system component catches excess water sent during momentary water pressure surges? Select one: a. Post indicator valve b. Retard chamber c. Exhauster d. Accelerator

b. Retard chamber

Which statement about automatic sprinkler systems is MOST accurate? Select one: a. Most sprinkler system failures are due to failure of the sprinklers themselves. b. Sprinkler systems increase the safety of firefighters to conduct search and rescue activities. c. Sprinkler systems prevent smoke generated by small fires from reaching occupants. d. Sprinkler systems designs must assume that all sprinklers will operate during a fire.

b. Sprinkler systems increase the safety of firefighters to conduct search and rescue activities.

Which category of notification appliances indicates a fire or emergency condition through the sense of touch or vibration? Select one: a. Textual b. Visual c. Tactile d. Audible

c. Tactile

The ___ is used to simulate actuation of the sprinkler system. Select one: a. inspector b. control valve c. alarm test valve d. main drain valve

c. alarm test valve

Class II standpipe systems are equipped with a 1 ½" (38mm) hose and a hose nozzle, and are designed for use by: Select one: a. members of the general public. b. fire personnel trained in heavy fire streams. c. trained building occupants and fire personnel. d. pumper operators via the fire department connection (FDC).

c. trained building occupants and fire personnel.

Which of the following describes a dry-pipe sprinkler system? Select one: a. Dry system that employs deluge-type valve, fire detection devices, and closed sprinklers b. Contains water under pressure at all times, when initiated will immediately discharge water spray and activate alarm c. All sprinklers open all the time, no water in piping before activation d. Air or nitrogen under pressure replaces water in sprinkler above valve, air escapes first when sprinkler activates

d. Air or nitrogen under pressure replaces water in sprinkler above valve, air escapes first when sprinkler activates

Which type of standpipe system contains water only when water is supplied through the fire department connection (FDC)? Select one: a. Semiautomatic dry b. Automatic wet c. Automatic dry d. Manual dry

d. Manual dry

Which of the following statements about smoke management systems is MOST accurate? Select one: a. One purpose of smoke management systems is to quickly remove smoke from and introduce fresh air into the fire area. b. One purpose of smoke management systems is to prevent fire spread until firefighters arrive. c. Smoke management is any effort to change pressure within the fire compartment. d. One purpose of smoke management systems is to protect life and reduce property loss.

d. One purpose of smoke management systems is to protect life and reduce property loss.

Which of the following statements about power sources of smoke detectors/alarms is MOST accurate? Select one: a. Smoke detectors/alarms may be powered only by dedicated electrical feeds. b. Smoke detectors/alarms are powered by a shunt from the municipal circuit. c. Hard-wired alarms are more reliable in areas with frequent power failures. d. Smoke detectors/alarms may be powered by batteries or household current.

d. Smoke detectors/alarms may be powered by batteries or household current.

Which of the following statements BEST describes a manual dry standpipe system? Select one: a. The system is maintained full of water, but has no water supply. b. The system cannot be used in cold environments subject to freezing temperatures. c. The system is designed to admit water when the dry-pipe valve is activated at the hose station. d. The system does not have a permanent water supply, but has water only when supplied through the fire department connection.

d. The system does not have a permanent water supply, but has water only when supplied through the fire department connection.

Which protected premises alarm signaling system enables responders to identify the general location of alarm activation? Select one: a. Actuation alarm b. Noncoded alarm c. Addressable alarm d. Zoned/annunciated alarm

d. Zoned/annunciated alarm

The function of sprinkler deflectors is to: Select one: a. direct water flow upward toward the ceiling. b. prevent water flow until the sprinkler is activated. c. connect clamps and hangers. d. create the discharge pattern of the water.

d. create the discharge pattern of the water.

Power and fire alarm circuits are directly connected to: Select one: a. Class II house lines. b. initiating devices. c. notification devices. d. the fire alarm control panel.

d. the fire alarm control panel.