
Understanding Transport Refrigeration
Professional Development
12th Grade

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8 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What are the two primary uses of rail car refrigeration?
Cargo heating and passenger cooling
Cargo refrigeration and comfort cooling
Cargo freezing and comfort heating
Cargo ventilation and driver cooling
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How is rail car refrigeration typically powered when the car is in motion?
Battery power
Solar power
Axle-driven compressors
External electric grid
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What cooling method is often used for intermodal shipping containers for short distances?
Water cooling
Liquid nitrogen
Dry ice
Electric fans
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which type of condenser is most commonly used in intermodal shipping container refrigeration systems?
Air-cooled
Water-cooled
Chemical-cooled
Ice-cooled
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is a key design consideration for marine refrigeration systems?
Operation in freezing temperatures only
Compatibility with freshwater
Ability to operate in zero gravity
Resistance to salt water and high humidity
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which compressor type is most efficient for yachts and sailboats with limited electric power?
Open drive compressors
Centrifugal compressors
Hermetic compressors
Semi-hermetic compressors
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the primary advantage of using a keel cooler in marine refrigeration?
It operates silently
It uses sea water for cooling
It requires no power
It can cool and heat
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