60-3

In stand-by mode, the reefer power is sourced from __________.

Select one:

• a.The compressor driven by the diesel engine

• b.The compressor driven by a petrol engine

• c.The vehicle’s battery supply

• d.A connection to a power grid or shore power source

In a vehicle-powered refrigeration unit, what is usually used to transfer heat to the temperature-controlled product compartment in the winter?

Select one:

• a.Electric heater

• b.Evaporator

• c.Engine coolant

• d.Electric motor

Technician A says that larger reefer units use compressors that have three cylinders arranged in line. Technician B says larger units use compressors that have four cylinders arranged in a V. Who is correct?

Select one:

• Tech A

• Tech B

• Neither

• Both

Multi-temp units can regulate temperature using additional __________ mounted in the ceiling.

Select one:

• a.Compressors

• b.Condensers

• c.Accumulators

• d.Evaporators

One of the latest advancements in powering larger truck refrigeration units is the use of a truck engine–driven, __________ operated electric power generator.

Select one:

• a.Mechanically

• b.Hydraulically

• c.Digitally

• d.Battery