207) The power source for a brake booster is
the pressure difference between the atmospheric pressure and the vacuum pressure in the intake manifold
Related Automobile Engineering MCQ with Answers
cause less brake fluid pressure to act on the rear brakes than on the front brakes when the fluid pressure exceeds a predetermined level
overheating of the fluid due to frequent brake application
The condition that causes vapour locking in a brake system is overheating of the fluid due to frequent brake application.
Although brake fluids are designed to work at extreme temperatures above 250 Degree Centigrade but still as the age of brake fluids goes on increasing, it starts loosing its properties and hence under high pressure and temperatures developed by applying brakes causes vapour lock.