Worksheets152 revision #5
Total questions: 29
Worksheet time: 15mins
Why would the engine shown in the image not be a four cylinder inline engine?
Piston 1 and 4 are not at TDC
Only piston 1 and 2 are visible
Piston 2 and 3 are not at TDC
All piston should be visible
Which type of lightly vehicle will the component shown in the image be fitted to?
Petrol engine
Rotary engine
Diesel engine
Spark ignition engine
Which one of the following components normally sits inside the sump?
Full flow filter element
Main oil delivery gallery
Primary oil filter gaze
Hydraulic oil valve lifter
Which one of the following components would only be associated with dry-sump lubrication systems?
Scavenge pump.
Pressure relief valve.
Distributor pump.
Oil filter.
What does a dry sump lubrication system used on some performance vehicle prevent?
Loss of oil from the pickup pipe due to vehicle movement
Excess oil from entering the pickup pipe due to vehicle movement
Turbo spindle seizure
Excessive turbo lubrication
Which one of the following vehicle types would commonly have a dry sump lubrication system fitted?
Heavy goods vehicles
People carriers
Specialist sport cars
Light utility vehicles
The vehicle interior heater is controlled by allowing coolant to flow through controlling valves and the?
Evaporator
Condenser
Heater matrix
Manual heater switch
What are the components being lubricated in the diagram shown?
Big end bearing and crankshaft.
Camshaft and rocker arm.
Main bearing and crankshaft.
Push-rod and exhaust valve.
When an oil pump has failed, the condition of which two components must also be checked?
Flywheel face and piston rings
Pistons and flywheel face
Main bearings and sump gasket
Main and big end bearing
What must be carried out to the cooling system after the replacement of any major components?
Stamp the service book
Renew the drive belt
Bleed the system
Flow test the radiator
Which one of the following is used to increase volumetric efficiency on a CI engine?
Inlet manifold
Intercooler
Throttle valve
Radiator
What is used to measure the proportion of anti-freeze in a coolant?
Pipette
Multi-meter
Higrow-meter
Hydrometer
When carrying a cylinder leakage test, which of the following is a possible cause of air being heard from the oil cap?
Cylinder head gasket failure
Piston rings and cylinder bores worn
Inlet valve stem seals worn
Exhaust valve stems worn
Which of the following describes why it is important not to over tighten the auxiliary belt?
It could cause damage to the water pump bearings
It would allow the belt to slip
It could cause damage to the cooling blades
It could allow the alternator to overcharge the battery
When replacing a canister type oil filter, how should the old one be removed?
By hand and the new one tightened using a strap wrench
Using an impact wrench and the new one tightened by hand
Using a strap wrench and the new one tighten by hand
By hand and the new one tightened by power bar
When fitting a replacement cartridge filter element to an engine lubrication system, what is it important to do?
Replace the sealing ring in the pump.
Put a sealant onto the mounting face.
Tighten up the cartridge using a filter strap.
Lubricate the sealing ring before fitting.
Which one of the following describes when oil pressure should be checked?
When engine is running at a cold temperature
When vehicle is idling and at lower temperature
At 1000 rev/minutes
As specified by the manufacturer
Which one of the following should be carried out after replacing an oil filter and running the engine?
Check coolant level
Visual inspection for leak
Replace oil filter seal
Check and top up transmission level
The manufacturer's specification for radial clearance of an oil pump is 0.02-0.10 mm. Which result is within tolerance?
0.01mm
0.11mm
0.05mm
0.15mm
Which one of the following would cause the engine oil warning light to come only when the engine is warm?
Engine oil with too high viscosity
Engine oil with too low viscosity
Oil pressure switch contacts open
High resistance in warning light circuit
Which of the following is a check that must be carried out after coolant replacement?
Engine oil level is correct
Heater blows hot air
Heater blows cold air
Heaters are not adjusted
A benefit of water cooled engines over air cooled engines is that they
Maintain a more constant temperature
Reach operating temperature more quickly
Have less moving parts
Provide less chance of corrosion
Which one of the following conditions would indicate that a cross flow radiator has a blocked matrix (core)?
The radiator temperature is the same at both sides
The inlet side is much cooler than the outlet side
The outlet side is much hotter than the inlet side
The inlet side is much hotter than the outlet side
‘Linear expansion’ is best described as materials changing in
Size due a temperature change.
Weight due to temperature change.
Color due to temperature change.
Mass due to temperature change.
What happens to the boiling point of the water when glycol anti-freeze is added?
Lowers
Stays the same
Raises
Fluctuates
What are there different methods of heat transfer?
Convection, conduction, radiation
Radiation, kinetic, conduction
Thermal, convection, radiation
Kinetic, thermal, convection
Which one of the following is the most likely fault of a heater fan that only operates on full speed?
Blown fuse
Lack of coolant
Thermostat not opening
Faulty resistor pack
A rotating engine crankshaft with no valve movement could be caused by
a snapped cam belt
damaged big end bearings
incorrect valve clearance
oil pump failure
If a thermostat fails to open it would cause the engine to run at
its optimum temperature
a cooler temperature
extremely higher temperatures
Varying temperatures
