Engines3 o7

When the minimum allowable down to Gudgeon pin is fitted to the maximum allowable diameter small ambush what would the clearance be.

Gudgeon pin -diameter 20.05  and tolerance is -0.003

Small end bush 20.05 tolerance+0.005 to -0.010

• 0.008

• 0.013

• 0.035

• 0.100

Service repair records need to be kept up to date because

• A. The bonuses to workers may be compromised

• B warranty work can only be carried out after service /repair records are consulted.  

• The person who compiled the records will have difficulty keeping information in sequence.

• The compilation of records is difficult

A vehicle being road tested to identify a fault must comply with which guidelines? 

• A. The Highway Code

• B. The MOT testers manual

• C. The highway agency code of practice

• D. The department of transport road and regions regulations.

The amount of Labour time available in a repair department working day would be reduced by

• A. Over staffing

• B. good departmental house keeping 

• C. Work carried over from the previous day

• D.jobs being completed in less than the target time.

One factor which increases the time allowed for a repair department job is:

• A. Rusted and corroded threads

• B. Technicians rest periods

• C. Excessive overheads

• D. Technicians awaiting equipment 

6. The effect of under tensioning a camshaft drive belt is that the 

• A. Water pump bearing life will be reduced

• B. Chain or cam belt may slip and cause internal engine damage

• C. Camshaft drive gear may shear causing major engine damage 

• D. Belt and driveline will be under excessive strain and will wear prematurely 

7. What is the purpose of the Pressure relief valve on a turbocharger 

• A. A thermostat 

• B. A map sensor

• C. To govern idle speed

• D to prevent over boost

8.

It is necessary to have a gap in a piston ring in order to 

• A. Reduce oil drainage 

• B. Allow for contraction 

• C. Allow for expansion 

• D. Reduce blow by.

If a compression test reading remains low after oil is poured into the cylinder, the most probable

• A. Worn piston rings

• B. Worn cylinder bores

• C. Valves are not seated correctly 

• D. Worn valve guide bushes

The purpose of the piston oil control ring is to 

• A. prevent any oil adherence to the cylinder wall 

• B. Allow oil to pass the compression rings

• C. Deliver the oil supply to the Gudgeon pin

• D. Control lubrication