DCB30102_Chapter 6_Part 1_pre test_2:2021/2022

"A number of passengers arriving at an elevator system for service during a five minute peak period (CIBSE GUIDE D:2010)" refers to__________

• arrival rate

• average car load

• building population

• handling capacity

"The total number of passengers carried in one direction of travel, divided by the number of trips in that direction, averaged over a certain time period, usually taken as five minutes, hence up peak or down peak average car load

" refers to__________

• arrival rate

• average car load

• building population

• handling capacity

"Total population of a building" refers to__________

• arrival rate

• average car load

• building population

• handling capacity

"The total number of passengers that an elevator system can transport in a period of five minutes during the up peak traffic condition with a specified car loading, usually taken as 80% of rated capacity. (CIBSE GUIDE D: 2010)

" refers to__________

• arrival rate

• average car load

• building population

• handling capacity

"The maximum legal load, which an elevator car is permitted to carry measured in a number of passengers or a specific weight in kg " refers to__________

• Contract/rated capacity

• Contract/rated speed

• Up-peak

• Down-peak

______________is defined as a linear car speed in the hoist way, which the elevator manufacturer contracts to supply. (CIBSE GUIDE D, 2010).

• Contract/rated capacity

• Contract/rated speed

• Up-peak

• Down-peak

An ______________ traffic condition exists when the dominant or only traffic flow is in the upward direction with all or the majority of the passengers entering the lift system at the main floor of the building. This traffic pattern when the number of up-hall calls is larger than average. (at the start of the day)

• Contract/rated capacity

• Contract/rated speed

• Up-peak

• Down-peak

A ______________ traffic condition exists when the dominant or only traffic flow is in a downward direction with all or the majority of passengers leaving the lift system at the main terminal of the building. This traffic pattern when the number of down-hall calls is larger than average. (at the late of the day)

• Contract/rated capacity

• Contract/rated speed

• Up-peak

• Down-peak

___________ is the time that a lift car takes to transit two adjacent floors at rated speed.

• Interfloor flight time

• Interval

• Door opening and closing time

• Round trip time (RTT)

___________ is the period between successive car arrivals at the main terminal with cars loaded to any value. Expressed in seconds and represents the round-trip time of one car divided by the number of cars in a common group or system.

• Interfloor flight time

• Interval

• Door opening and closing time

• Round trip time (RTT)