delyoBusier-HVAC

A stream of high-velocity temperature-controlled air which is directed downward, across an opening

• AIR COMBUSTION

• AIR CURTAIN

• AIR TIGHT

• AIR VENT

A device designed to stop an elevator car or counterweight from descending beyond its normal limit of travel

• THREAD

• TRACK

• BUMPER

• STRIP

When the elevator car rest on its fully compressed buffer, there shall be a vertical clearance of not less than between the pit floor and the lowest structural or mechanical part.

• 510 mm

• 810 mm

• 710 mm

• 610 mm

There shall be installed in the pit of each elevator where the pit extend more than ___ below the sill of the pit access door

• 660 mm

• 760 mm

• 560 mm

• 860 mm

Device for heating water or generating steam above atmospheric pressure.

• EVAPORATOR

• HEATER

• BOILER

• HUMIDIFIER

Machine that decreases the volume and increases the pressure of a quantity of air by mechanical means.

• PUMPING MACHINE

• AIR PUMP

• COMPRESSOR

• MECHANICAL PUMP

Device that convert electrical energy into mechanical energy, by electromagnetic means.

• GENERATOR

• ALTERNATOR

• ADAPTER

• COMPRESSOR

A machine often provides the most convenient and economical means of transporting relatively small articles between levels.

• PASSENGER ELEVATOR

• SERVICE ELEVATOR

• GARBAGE SHUTE

• DUMBWAITER

An air-conditioning system in which the air is treated by equipment at one or more central locations outside the spaces served and conveyed to and from these spaces by means of fans and pumps through duct and pipes.

• CENTRALIZED AIRCON

• DUCT AIRCON

• GENERAL AIRCON

• ROOM AIRCON

The following are elements of centralized air-conditioning system except _______.

• Central Cooling

• Gradual Cooling

• Method of cooling

• Natural Cooling