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Total Questions : 1197 | Page 56 of 120 pages
Question 551.


The main function of the tread pattern on tyre is that


  1.    the tread grooves pass air between the tyre and road surface, thereby preventing tyre from overheating
  2.    the crests between the tread grooves absorb road noise
  3.    in wet conditions, the tread grooves expel water that is drawn between the tyre and road surface
  4.    the tread pattern protects the tyre's inner carcass from small stones and pieces of glassthe tread pattern protects the tyre's inner carcass from small stones and pieces of glassthe tread pattern protects the tyre's inner carcass from small stones and pie
 Discuss Question
Answer: Option C. -> in wet conditions, the tread grooves expel water that is drawn between the tyre and road surface


Question 552.

 
In a fuel
injection system, the electronic control module (ECM) calculates the
optimum fuel-injection volume for the engine condition based on the data
received from the sensors, and injects this volume of fuel into the
intake manifold at the optimum timing.


  1.    Correct
  2.    Incorrect
 Discuss Question
Answer: Option A. -> Correct


Question 553.


The aluminium alloy is used in cylinder blocks because


  1.    it is lighter and have good heat dissipation characteristics
  2.    material cost is low
  3.    it does not require any cylinder liners
  4.    the piston is also made of aluminium alloy
 Discuss Question
Answer: Option A. -> it is lighter and have good heat dissipation characteristics


Question 554.

 
The difference between DOT 3 and DOT 4 brake fluids is


  1.    DOT 4 fluid has a higher boiling point than DOT 3 fluid
  2.    DOT 4 fluid has a lower boiling point than DOT 3 fluid
  3.    DOT 3 and DOT 4 fluids have the same boiling point, but DOT 4 fluid has a longer service life
  4.    DOT 4 fluid is more resistant to freezing than DOT 3 fluid
 Discuss Question
Answer: Option A. -> DOT 4 fluid has a higher boiling point than DOT 3 fluid


Question 555.


The operation of removing trapped air from the hydraulic braking system is known as


  1.    trapping
  2.    tapping
  3.    bleeding
  4.    cleaning
 Discuss Question
Answer: Option C. -> bleeding


Question 556.


The battery is an electrochemical device, which means battery


  1.    makes chemicals by mechanical means
  2.    uses chemical action to provide electricity
  3.    has curved plates instead of flat plates
  4.    does not use an electrolyte
 Discuss Question
Answer: Option B. -> uses chemical action to provide electricity


Question 557.

 
The diagram which shows the correct crank positions corresponding to the opening and closing of the valves, is known as


  1.    indicator diagram
  2.    axial force diagram
  3.    valve timing diagram
  4.    none of these
 Discuss Question
Answer: Option C. -> valve timing diagram


Question 558.

.If the air-fuel mixture ignites before the spark takes place at spark plug, the condition is called


  1.    detonation
  2.    ignition
  3.    pre-ignition
  4.    rumble
 Discuss Question
Answer: Option C. -> pre-ignition


Question 559.

The information provided by the oxygen (O2) sensor to the feedback control system is about the


  1.    air-fuel ratio
  2.    air temperature
  3.    air flow speed
  4.    exhaust gas volume
 Discuss Question
Answer: Option A. -> air-fuel ratio


Question 560.

 
The advantage of
double-wishbone suspension design is that a large amount of freedom is
available for setting geometry and precise settings can be made for
driving comfort and steerability,


  1.    Correct
  2.    Incorrect
 Discuss Question
Answer: Option A. -> Correct


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