Mechanical Engineering - Automobile Engineering

31.
The information provided by the oxygen (O2) sensor to the feedback control system is about the
air-fuel ratio
air temperature
air flow speed
exhaust gas volume
Answer: Option
Explanation:
No answer description is available. Let's discuss.

32.
The diagram which shows the correct crank positions corresponding to the opening and closing of the valves, is known as
indicator diagram
axial force diagram
valve timing diagram
none of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.

33.
The difference between DOT 3 and DOT 4 brake fluids is
DOT 4 fluid has a higher boiling point than DOT 3 fluid
DOT 4 fluid has a lower boiling point than DOT 3 fluid
DOT 3 and DOT 4 fluids have the same boiling point, but DOT 4 fluid has a longer service life
DOT 4 fluid is more resistant to freezing than DOT 3 fluid
Answer: Option
Explanation:
No answer description is available. Let's discuss.

34.
The battery is an electrochemical device, which means battery
makes chemicals by mechanical means
uses chemical action to provide electricity
has curved plates instead of flat plates
does not use an electrolyte
Answer: Option
Explanation:
No answer description is available. Let's discuss.

35.
The operation of removing trapped air from the hydraulic braking system is known as
trapping
tapping
bleeding
cleaning
Answer: Option
Explanation:
No answer description is available. Let's discuss.