Worksheets152 Level 2 REVISION
Total questions: 37
Worksheet time: 19mins
What is the top part of a piston called ?
Hat
Crown
skirt
Flare
Which is the most commonly used firing order
1342
1234
4213
4312
The manufacturers instructions should always be followed when carrying out engines repairs to ensure that the
repair is completed before the recommended time
car is repaired quickly
components are replaced correctly
car is returned on time
An engine fitted with an intercooler will have
low power output
decreased volumetric efficiency
increased volumetric efficiency
reduced drag
An unusual noise emitting from the engine would indicate
a possible fault
high fuel consumption
low fuel consumption
lack of power
When carrying out valve clearance inspection to a four cylinder 8 valve engine , what is the rule used ?
rule of 1
rule of 2
rule of 9
rule of 8
Torque is the measurement of
speed
presure
gravity
Turning force
Which of the following would increase an engines compression ratio
fit bigger big ends
reduce piston size
Increase piston height
fit smaller con rods
What is the capacity per cylinder of a 2.2 litre 4 cylinder engine
220ml
550ml
600ml
700ml
What does TDC stand for
Turbo diesel car
Top diesel compression
Top dead centre
Top diesel centre
Which of the following will cause an engine to over heat
Thermostat stuck open
inlet valve tight
restriction in heating pipes
exhaust gasket leaking
which of the following will cause an engine to have excessive tapping/rattling noise on start up
slipping aux belt
over adjustment of valve clearances
excessively worn hydraulic cam followers
broken spring
identify the component in the picture
Oil strainer
oil valve
oil gallery
oil pressure switch
Two types of common flow oil filters are
semi-flow and bypass
full-flow and by-pass
bypass and boundry
full flow and boundry
Engine oil thickness is classified by its
Viscosity
colour
stickiness
temp
SAE stands for
Society of all engineers
Society of Automotive Engineers
Society Aviation engineers
Society of all engines
Prior to replacing an engines main shell bearings , they should be
lubricated with engine oil
fitted dry
tightened with a ratchett
left to soak
One examination method for an engines lubrication systems is
block testing
cylinder leakage tests
examining for external leaks
pressure test the cooling systems
How should a technician check for a successful repair of a replacement head gasket
Check screen wash
Run engine to normal operating temperature
Check engine oil pressure
carry out coolant pressure test
API stands for
American Petroleum Institute
Automotive Petrol institute
Automotive Paraffin Institute
American postal inn
OIl emulsification will signify an
external oil leak
internal oil/coolant leak
external oil leak
internal prs valve
Name the component shown
Thermostst
Oil pressure switch
Radiator core
Coolant sensor
A cooling system is fitted with a pressurised cap in order to
increase coolant flow
increase coolant boiling point
lower flow rate
decrease coolant boiling point
What must be taken into account when working on a cooling system
pressure and time
heat and pressure
time and pressure
weight and pressure
Heater matrix cores are manufactured from
solid core tubes
solid reflective tubes
galvanised steel
hollow cores with fins
In order to check the correct operation of a heater , the vehicle should be run until it
reaches operating temperature
is at full throttle
is idling when cold
stops
Thermal conductivity is the amount of heat a particular substance can carry through it in a unit of
weight
length
Temperature
time
Adding a ratio of 70/30 antifreeze to water will raise boiling point by
13 degrees Celsius
1 degree Celsius
5 degrees Celsius
7 degress Celsius
The cooling system design is called a
thermo sihpon
heat expansion
conduction
thermistor expansion
Low oil pressure would be caused by
internal cylinder leak
external coolant leak
stuck open pressure relief valve
oil with high viscosity rating
What should you do before working on a hot pressurised cooling system
use a cloth to open cap
allow coolant to cool down
use goggles
use ppe
What is the purpose of the oil scrapper ring
To return oil to sump
To provide a seal to ring
To take up ring gap
to provide friction
What letter designates oil designed for petrol engines ?
r
s
p
t
What type of oil is used in modern engines
Multi-type
Multi-grade
Multi-part
single weight mineral oil
What does the abbreviation SG test mean
social group
specific gravity
specific group
selective ground
What is the approximate boiling point of water at sea level
25 degrees
85 degress
96 degress
150 degress
what is the component shown
valve
electronic thermostat
thermistor
heating valve
