Final answer:
A driver cannot block and brace freight on a reefer because it can obstruct the airflow and hinder temperature control. Proper airflow in reefers is essential to maintain the desired temperature range.
Step-by-step explanation:
A driver cannot block and brace freight on a reefer because reefers are refrigerated trailers that are used to transport temperature-sensitive goods.
These trailers are equipped with refrigeration units and air circulation systems to maintain a specific temperature range, typically between -20°C to 25°C.
Blocking and bracing the freight inside the trailer could obstruct the airflow and hinder the proper circulation of cool air, leading to temperature fluctuations and potential damage to the cargo.
Reefers are designed with specific airflow patterns in mind to ensure the even distribution of cooled air throughout the trailer.
When freight is properly loaded and secured in a reefer, it allows the cool air to circulate around the cargo efficiently, maintaining the desired temperature range.
In addition to proper airflow, it is important to consider the weight distribution of the cargo inside the reefer.
Improperly blocked and braced freight can lead to unbalanced weight distribution, which can affect the stability and handling of the trailer during transportation.