Question 146Motor Plants - QMED70% to pass
Corrosion inhibitors and/or soluble oils are added to diesel engine cooling systems to _______________.
AI Explanation
The correct answer is B) form a protective film on metal surfaces.
Corrosion inhibitors and/or soluble oils are added to diesel engine cooling systems to form a protective film on the metal surfaces of the cooling system. This helps prevent corrosion and wear of the metal components, which is essential for maintaining the integrity and longevity of the cooling system.
The other answer choices are incorrect because: A) increasing cooling water hardness is not the purpose of corrosion inhibitors, C) reducing the cooling water temperature is not their function, and D) maintaining low pH in the cooling water is not their primary role.
Related Questions
#144 According to the illustrated diesel propulsion plant fresh water cooling systems diagram, in which subsystem is the deaerator located? Illustration MO-0072 #145 According to the illustrated main and auxiliary diesel engine cooling water systems diagram, which of the following heat exchangers are connected directly in series with one another? Illustration MO-0129 #147 Cooling water pumps driven by direct reversing diesel engines are usually _______________.#148 A closed fresh water cooling system is commonly used with marine diesel engines because the _______________.#149 The expansion tank for a diesel engine closed cooling system is designed to maintain a constant head on the system and _______________.