Mechanical Engineering Quiz # 18

How does the amount of space a system is able to heat or cool is usually expressed?

Cubic feet

British Thermal Units

Calories

BTU's

Watts

What is CO produced by?

Burning coal

Burning natural gas

Burning any fuel

What does burning any fuel produce?

Heat

Carbon Monoxide

Hydrocarbons

Pollution

Nitrogen Oxide

What type of system is not affected by geography?

Gasoline System

Telephone System

Public Address System

Electrical System

Central Air Conditioner System

What is the name of the type of compressor used in vapor compression refrigeration cycles?

Rotary Compressor

Reciprocating Compressor

Turbocharged Compressor

Impulse Compressor

Centrifugal Compressor

What is another term for "CFM"?

Cubic feet per second

Cubic feet per minute

Cubic foot measure

Cubic yards per minute

Cubic meters per second

What is a charge?

Volume of gas in a cylinder

Amount of refrigerant in a system

Electricity used by an air conditioner

Water in a river

What is contained in a chiller?

Ice

Refrigerant

Water

Freon

What is the major component of a chilled water system?

Pump

Water inlet manifold

Tank

Expansion valve

Chiller

Comfort air systems aren't designed for what?

Reducing noise in a busy office

Reducing air conditioning costs

Protection of computer-based electrical systems

Proper use in high-rise buildings

Soothing the senses of those with allergies

What is the name of the pump that moves the refrigerant from the indoor evaporator to the outdoor condenser and back to the evaporator again?

Compressor

Pump

Pumpshaft

Motor

Evaporator

What is the compressor often called?

The heart of the system

The device that makes the noise

The engine that turns the fan

The part of the system that controls the air pressure

The component that controls the pressure

What is the process by which a gas is changed into a liquid at constant temperature by heat removal?

Condensation

Evaporation

Sublimation

What does the word "condensation" mean?

The act of cooling a liquid below its freezing point

The process by which a gas is changed into a liquid at constant temperature by heat removal

The production of vapors by the boilingpoint of a liquid

The state of being wet

The act of making something cold

What type of condenser uses a combination of air and water?

Condensers that use water alone

Condensers using a gas coolant

Condensers using a liquid coolant

Evaporative condensers

Condensers using a refrigerant

What do condensers use to transfer heat?

Electricity

Steam

Air

Water

What are the three types of condensers?

Air-cooled condensers, water-cooled condensers, and thermal fluid condensers

Air-cooled condensers, water-cooled condensers, and thermoelectric coolers

Air-cooled condensers, water-cooled condensers, and evaporative condensers

Air-cooled condensers, water-cooled condensers, and oil-cooled condensers

Air-cooled condensers, water-cooled condensers, and gas-cooled condensers

What material is used to fill the tubes in a Condenser Coil?

Air

Refrigerant

Vacuum

Hot air

Mercury

What is the name of the equipment that removes heat from the gas?

Condenser Coil

Heat Exchanger

Heater

Coil

Boiler

What does the term "condenser coil" refer to?

A physical component in a loudspeaker that transforms electrical energy into acoustic energy

A series or network of tubes filled with refrigerant

An electronic component used in electronic equipment

A device used to cool a generator

A coil of wire in an electric motor

What part of a split system air conditioner contains the compressor?

Room

Heater core

Air filter

Outdoor

Wall

What type of unit is a condensing unit?

A water heater

A fan

Part of a refrigerating mechanism

A unit that converts heat to electrical power

A type of fan

What does COP stand for?

Congress of Public Opinion

Control of Plant

Committee on Political Parties

Cotton Output

Coefficient of Performance

What is the measure of how much heat a unit can remove from an enclosed space?

Warming Capacity

Heating Capacity

Cooling Capacity

Heat Capacity

Thermal Capacity

What is the name of the process that causes heat to flow into a space?

Radiation

Conduction

Convection

Cooling Load

What can flow into a space from outdoors and/or indoors?

Heat

Rain

Water

Air

What is the cooling load?

Heat which flows into a space

The rate at which heat is removed from a space

Heat which flows out of a space

Heat which is transferred from one object to another

What are used in zoning to regulate airflow?

Windows

Gates

Dampers

Ventilation fans

Shutters

What is a term for movable plate that controls airflow?

Damper

Venturi

Fan

Exhaust

What does a damper do?

Increases water pressure

Opens and closes to control airflow

Reduces air pressure

Prevents water from flowing over the side of a dam

Increases the amount of water that can pass through a dam