Fundamental questions work sheet HVAC Cooling Towers

1. Draw a cooling tower and its basic components

2. Describe the purpose of a cooling tower

3. Describe how a cooling tower works

Water Chillers

1. Draw a water chiller and its basic components

2. Describe the purpose of a water chiller

3. Describe how a water chiller works

Air Handling Units

1. Draw an air handling unit and its basic components

2. Describe the purpose of an air handling unit

3. Describe how an air handling unit works

Fan and Coil Units

1. Draw a cooling tower and its basic components

2. Describe the purpose of a cooling tower

3. Describe how a cooling tower works

Split Air Condition Units

1. Draw a split air condition unit and its basic components

2. Describe the purpose of a split air condition unit

3. Describe how a split air condition unit works

Variable Refrigerant Flow (VRF) or Variable Refrigerant Volume (VRV)

1. Draw a VRF/VRV and its basic components

2. Describe the purpose of a VRF/VRV

3. Describe how a VFR/VRV works

Heat Pump

1. Draw a heat pump and its basic components

2. Describe the purpose of a heat pump

3. Describe how a heat pump works

Kitchen Freezer and Chiller/Refrigerator Units

1. Draw a kitchen freezer/chiller and its basic components

2. Describe the purpose of a kitchen freezer/chiller

3. Describe how a kitchen freezer/chiller works

Describe the following:

1. Convection

2. Conduction

3. Radiation

Describe the following:

1. Compressor

2. Condenser

3. Evaporator

Describe the following:

1. Centrifugal Fan

2. Axial Fan

3. Exhaust Air Fan

Describe the following:

1. Air Distribution

2. Ducts

3. Accessories

Describe the following:

1. Humidity

2. Temperature

3. Indoor Air Quality Ventilation

Describe the following:

1. Actuator

2. Damper

3. Valve

Describe the following:

1. Discharge Temperature Control

2. Static Pressure Control

3. Ventilation Control

Describe the following:

1. Superheat

2. Refrigerant

3. Hydro chlorofluorocarbons / Hydro fluorocarbons

Describe the following:

1. HVA Electricity Power

2. HVAC Electricity Line

3. HVAC Electricity Switch

4. HVAC Electricity Load

Read and understand the following:

An HVAC technician must understand common HVAC schematic symbols and how they

operate. Once you do, the schematic diagram becomes your road map to troubleshooting

electrical problems. Look at the diagram; find L1 and L2, which is the incoming power (240

volts). Trace the wires (black lines) practice identifying the lines, switches, and loads how many

can you find? See diagram below

Electric Motors

Describe the following:

1. Direct Current

2. Alternating Current

3. Period and Frequency

4. Parallel Circuit

5. Series Circuit

6. Single phase

7. Three Phase

Describe the following:

1. In a three phase what is the voltage between one phase and the neutral

2. In a three phase what is the voltage between two phases

3. What happen to a three phase motor if the phasing of the power source is reversed

4. What happens when a phase gets disconnected in a three phase system

Describe the following:

1. Why a motor burns

2. A short circuit

3. Why terminals get hot

Describe the following:

1. Motor components

2. Magnetic contactor

3. Control Fuse

4. Thermal Over Load Relay 3 Phase

5. 3 Phase Induction Motor Delta and “Y” connection

Explain the diagram below:

Pumps

Describe the following:

1. What is a pump

2. Different types of pumps

3. Pump power

Describe the following:

1. Direct Lift

2. Displacement

3. Gravity

4. Rotary

5. Centrifugal

Describe the following:

1. Make a diagram of a screw mechanism

2. Make a diagram of a rotary positive mechanism

3. Make a diagram of a roots-type supercharger mechanism

Describe the following:

1. Make a diagram of a flexible impeller mechanism

2. Make a diagram of a velocity mechanism

3. Make a diagram of a centrifugal mechanism

Describe the following:

1. What is a booster pump machine

2. What is a submersible pump

3. What is an axial flow pump

4. What is a diesel pump

5. What is a jockey pump

6. What is an electric pump

7. What is pump torque

8. What is motor horsepower

9. What is shaft speed

Mechanical

Describe the following:

1. Heat exchange

2. Water, steam, ice

3. Distillation

4. Condensation

5. Boiling

6. Deionization

7. Reverse osmosis

Describe the following:

1. Water treatment

2. Water processing

3. Water supply

Describe the following:

1. Aerobic organisms

2. Anaerobic organisms

3. Microorganisms

Describe the following:

1. Motor and pump alignment

2. Motor shaft torque

3. Motor rotor

4. Motor stator

Describe the following:

1. How does a diesel generator works

2. How does a diesel motor pump works

3. How does a gasoline motor pump works

4. How does an air compressor works

Describe the following:

1. What is a flow control valve

2. How does a solenoid valve works

3. How does a PLC valve controller works

Describe the following:

1. What is a pump

2. Different types of pumps

3. Pump power

Describe the following:

1. What is net positive suction head (piping)

2. What is cavitation (piping)

3. What is piping

Describe the following:

1. What is fire sprinkler

2. What is a smoke detector

3. What is a heat detector

Describe the following:

1. What is a fire sprinkler

2. What is a smoke detector

3. What is a heat detector

Describe the following:

1. What is a fire alarm

2. How to test water flow

3. What is supervisory valve (fire fighting)

Kitchen Describe the following:

1. Water drainage

2. Smoke exhaust ventilation

3. Water supply

4. Waste disposal

Describe the following:

1. Pest control

2. Drainage waste tramp

3. Water sink

4. Bad odor/smell

Describe the following:

1. How does the oven works

2. How does the stove works

3. How does the warm plate works

Describe the following:

1. How does a gas rice cooker works

2. How does an electric rice cooker works

3. How does a microwave oven works

Describe the following:

1. Piping drainage clog

2. How to remove clogged drain

3. How to prevent drain pipe clog

Vertical Transportation Describe the following:

1. Draw a diagram of an elevator

2. Describe the main components of an elevator

3. Describe how an elevator works

Describe the following:

1. Draw a diagram of a dock leveler

2. Describe the main components of a dock leveler

3. Describe how a dock leveler works

Describe the following:

1. Draw a diagram of a dock leveler shutter door

2. Describe the main components of a dock leveler shutter door

3. Describe how a dock leveler shutter door works

Describe the following:

1. Draw a diagram of a rolling shutter door

2. Describe the main components of a rolling shutter door

3. Describe how a rolling shutter door works

Describe the following:

1. Draw a diagram of an electrical stairs

2. Describe the main components of an electrical stairs

3. Describe how an electrical stairs works

Describe the following:

1. Draw a diagram of a hoist crane

2. Describe the main components of a hoist crane

3. Describe how a hoist crane works

Plant Facilities layout Describe the following:

1. Draw a diagram layout of a hotel (interior/exterior)

2. Draw a diagram layout of a hotel (interior/exterior)

3. Draw a diagram layout of a warehouse (interior/exterior)

4. Draw a diagram layout of a production line factory (interior/exterior)

5. Draw a diagram layout of an office (interior/exterior)

6. Draw a diagram layout of a house (interior/exterior)

Describe the following:

1. Draw a diagram layout of an emergency lighting system in a shopping center

2. Draw a diagram layout of an air conditioned system in a shopping center

3. Draw a diagram layout of an air conditioned system in an office building floor

FM – PM Reporting

Describe the following:

1. What is Planned Preventive Maintenance

2. What is Repair Maintenance

3. What is Corrective Maintenance

Describe the following:

1. What is Job Safety Assessment

2. What is Job Work permit

3. What is Personal Protection Equipment

Describe the following:

1. Daily Task and Shift briefing

2. Daily Toolbox briefing

3. Job Priority level

4. Technician skills matrix

5. Job Work Order