Actives Quizes 25,31,32 Dr. Ford (For Final)

In a mid-rise office building, the elevator system may account for as much as

10% of total construction costs

As a rule, no bank of elevators should have more than

4 cars in a row

Approximately ______ of the energy expended in lifting a traction elevator car is returned to the system by regeneration when the car is lowered

75%

An acoustic detector will produce an alarm when

A specific range of frequencies is detected

Materials utilized as fire barriers within a building may also be useful for

Acoustic isolation of airborne sound

The three commonly encountered types of photoelectric infusion sensors are

Audible, Visual, and Tactile

In terms of building design, smoke differs from fire mainly because

Barriers to fire spread are not good barriers to smoke spread

A traction elevator machine room is generally located

Directly above the hoistway

An exit-control alarm would most likely be found in the following building type

Educational

Which of the following subsystems is less likely that the others to be controlled by a "Building automation system (BAC)

Fire Suppression

The three elements of fire triangle of needs are

Fuel, High Temperature, and oxygen

The term Intelligent building has been

Generally defined as a building that is productive and cost effective

The four stages of fire are

Incipient, smoldering, flame, and heat

The common elements of all signal systems are best described as

Initiator, processor, and indicator

Typical applications for hydraulic elevator systems would include

Low-rise passenger and freight services

A biometric access control system will

Measure and compare an uniquely personal physical attribute

NFPA stands for

National fire Protection Association

An ionization type fire detector will be used to sense

Products of combustion generated in the early stages of a fire

A "thyristor" is used to

Provide a means of speed control for AC and DC motors

Portable fire extinguishers would normally be

Selected and specified by the architect

The three basic parts of a fire alarm system are

Signal initiation, signal processing, and alarm indication

When considering property protection, the designer must address _________ very early in the schematic design process

Site access for fire-fighting equipment

Interval Refers to

The average time between car departures from an elevator lobby

Regeneration describes the process whereby

The elevator machine generates electricity when a car is lowered

The primary difference between instruction and access control system is

The first focuses on unauthorized persons and the second on authorized persons

Standpipe and hose systems are classified primarily according to

The type of person expected to use the system

A "passive infrared (PIR) presence detector" is desirable for areas

Where frequent motion is unavoidable

"premise wiring" is a term used to describe

a system of conduits or raceways that can accommodate signal system needs

energy and power in an elevator system are related as follows

energy is a function of power needs and operational patterns

Handling capacity refers to

the percentage of building population that can be carried by an elevator system