Why is the M1120 hydraulic system equipped with bypasses?

Answer: B — To protect against cold temperatures

The correct answer highlights that the M1120 hydraulic system is equipped with bypasses to protect against cold temperatures. In hydraulic systems, fluid viscosity can increase significantly in colder conditions, which may lead to difficulties in fluid movement and can cause damage to components due to excessive pressure build-up. Bypass valves allow for the redirection of fluid flow, ensuring that the system operates smoothly even when the hydraulic fluid thickens in low temperatures, thus preventing potential damage and maintaining functionality. Bypasses serve as a safeguard, allowing the system to remain operational by alleviating potential hydraulic pressure issues that can arise from cold temperatures, thereby enhancing reliability and ensuring safe operation in various environmental conditions.