Automotive Mechanics Volume 2 9th Edition By Simpson -Test Bank

 

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Sample Test

Chapter 03 Testbank

Student: ___________________________________________________________________________

1.   How is a valve assembly dismantled?

 

 

 

 

 

2.   What is used to remove an old head gasket from the head surface?

 

 

 

 

 

3.   How are cylinder heads fastened back on to the block?

 

 

 

 

 

4.    

The most common problems with valve lifter noise are caused by:

1.    

contamination of the engine oil

1.    

excessive oil pressure causing lifters to pump up

1.    

air bleeding into the lifter while the engine is stopped

1.    

use of full synthetic oils in older engines

 

 

5.   When dismantling engines, spark plugs are removed to allow access to the combustion chamber.
True    False

 

6.    

Cylinder-head bolts are released progressively in the recommended sequence.

True    False

 

7.    

Cylinder-head faces and block faces should be cleaned with a sanding disc.

True    False

 

8.   After block bolt holes have been cleaned with a tap, they should be blown with air to remove any particles of carbon.
True    False

 

9.   General methods for cylinder-head crack detection include:
A. dropping special balls on the head surface
B. striking the head with metal and listening for a dull sound
C. using an oven to expand the head and identify the crack
D. using dye to identify cracks

 

10.                 

One bolt-tightening sequence often used would commonly be:

1.   in a spiral from the outside in
B.

in a spiral from the centre bolts outwards

1.   in a diagonal from outside in
D. from the front to the back

 

11.                As a general rule, head gaskets:
A. can be used more than once
B. can be used either way up
C. must be replaced every 10 000 km
D. can be used only once

 

12.                When using a torque wrench to tension head bolts:
A. they are tightened in one step
B. they are tightened in two steps
C. they are overtightened and then backed off to the correct tension
D. they are tightened in three steps

 

13.                For an accurate valve-clearance adjustment:
A.

adjust when cold then recheck when hot

1.    

adjust when hot then recheck when cold

1.   use two feeler gauges, one a little thicker and one a little thinner
D.

use a dial gauge on the cam end of the rocker arm

 

 

14.                The most time-efficient method of valve-clearance adjustment on a V6 engine is usually achieved by starting at:
A. number one and following the firing order
B. the rear cylinders and progressing forward
C. the front and going towards the rear
D. the left bank and following with the right bank

 

15.                Weak valve springs could cause:
A. burnt valves
B. tappet noises
C. side thrusts on the guide
D.

excessive valve-train friction

 

 

16.                Valve seals can be replaced in some engines without removal of the cylinder head by:
A. using a small tool through the plughole to support the valve
B. holding the valve up with a screwdriver or similar tool
C. using the piston to stop the valve falling down
D.

applying air pressure to the cylinder on the compression stroke

 

 

17.                Hydraulic lifters can be tested for:
A. ramp speed
B. leak-down rate
C. oscillation rate
D. rotation speed

 

18.                When reconditioning valve faces, they are usually:
A. ground
B. machined
C. coated
D. polished

 

19.                Valve seats can be reconditioned by either:
A. grinding or stamping
B. cutting or polishing
C. stamping or cutting
D. grinding or cutting

 

20.                 

Typical valve stem to guide clearance should be between:

1.   0.5 mm and 1.0 mm
B. 0.5 mm and 0.1 mm
C. 0.05 mm and 1.0 mm
D. 0.05 mm and 0.1 mm

 

21.                The outer diameter of new valve guides must be:
A. marginally larger than the cylinder head guide hole
B. marginally smaller than the cylinder head guide hole
C. the same as the diameter of the valve stem
D. the same size as the cylinder head guide hole

 

22.                Knurling valve guides is a process that:
A. increases the guide diameter to fit the new valve
B. establishes vertical grooves for oil retention
C. eliminates the need to ream
D. reduces the effective guide diameter

 

23.                 

The tool used to measure camshaft lift for comparison to the specification is:

1.   a dial gauge
B. a ball gauge
C.

a vernier caliper

1.   a crankshaft degree circle

 

24.                 

Timing belts should NOT be:

1.   bent or kinked
B. twisted or folded
C. all of the given options are correct
D. exposed to oil

 

25.                If the assembled valve height is increased, then:
A. the valve spring force remains the same
B. the valve spring force is increased
C. the valve spring force is reduced
D.

none of the given options is correct.

 

 

26.                 

During removal of the rocker shaft assembly for OHC engines, it is important that:

1.    

all retaining bolts are gradually and evenly released

1.    

the engine is set at approximately 60° BTDC so that the valves don’t release onto the pistons

1.    

the engine is set at TDC #1 with timing marks aligned

1.    

the cylinder head is removed before removal of the rocker shaft assembly

 

 

27.                What process is being carried out in the following picture?

A.  Valve lapping.
B.  Seat removal.
C.  Valve removal.
D.  Seat grinding.

 

28.                After cleaning, a cylinder head should be checked for:
A. cracks
B. warping
C.

all of the given options are correct.

1.    

rough surface or corrosion

 

 

 

 

Chapter 03 Testbank Key

1.   (p.  )How is a valve assembly dismantled?

A valve-spring compressor is used (Figure 3.6). After releasing the compressor, the retainer, spring, seal and spring seat can be removed.

 

Competency: AURLTE3002 Repair engines and associated engine components (light vehicle)
Difficulty: Medium
Section: Removing and dismantling cylinder heads

2.   What is used to remove an old head gasket from the head surface?

A scraper can be used to remove the old cylinder-head gasket. Handy hint: oven cleaner will clean the combustion chamber and ports after the heavy carbon has been removed.

 

Competency: AURLTE3002 Repair engines and associated engine components (light vehicle)
Difficulty: Easy
Section: Removing and dismantling cylinder heads

3.   (p.  )How are cylinder heads fastened back on to the block?

A spiral tightening sequence is often used for tightening cylinder-head bolts. The cylinder-head bolts can be tightened to a specified torque using a torque wrench. With many cylinder heads, the bolts are tightened using a torque-angle method. With this method, the bolts are tightened to a specified torque and then tightened further by turning them through a specified angle or angles.

 

Competency: AURLTE3002 Repair engines and associated engine components (light vehicle)
Difficulty: Medium
Section: Installing cylinder heads

4.    

The most common problems with valve lifter noise are caused by:

1.    

contamination of the engine oil

1.    

excessive oil pressure causing lifters to pump up

1.    

air bleeding into the lifter while the engine is stopped

1.    

use of full synthetic oils in older engines

 

 

Competency: AURLTE3002 Repair engines and associated engine components (light vehicle)
Difficulty: Easy
Section: Servicing hydraulic lifters and lash adjusters

5.   (p.  )When dismantling engines, spark plugs are removed to allow access to the combustion chamber.
FALSE

 

Competency: AURLTE3002 Repair engines and associated engine components (light vehicle)
Difficulty: Easy
Section: Cylinder head service

6.    

Cylinder-head bolts are released progressively in the recommended sequence.

TRUE

 

Competency: AURLTE3002 Repair engines and associated engine components (light vehicle)
Difficulty: Easy
Section: Removing and dismantling cylinder heads

7.    

Cylinder-head faces and block faces should be cleaned with a sanding disc.

FALSE

 

Competency: AURLTE3002 Repair engines and associated engine components (light vehicle)
Difficulty: Easy
Section: Removing and dismantling cylinder heads

8.   (p.  )After block bolt holes have been cleaned with a tap, they should be blown with air to remove any particles of carbon.
TRUE

 

Competency: AURLTE3002 Repair engines and associated engine components (light vehicle)
Difficulty: Easy
Section: Removing and dismantling cylinder heads

9.   (p.  )General methods for cylinder-head crack detection include:
A. dropping special balls on the head surface
B. striking the head with metal and listening for a dull sound
C. using an oven to expand the head and identify the crack
D. using dye to identify cracks

 

Competency: AURLTE3002 Repair engines and associated engine components (light vehicle)
Difficulty: Easy
Section: Removing and dismantling cylinder heads

10.                (p.  )

One bolt-tightening sequence often used would commonly be:

1.   in a spiral from the outside in
B.

in a spiral from the centre bolts outwards

1.   in a diagonal from outside in
D.from the front to the back

 

Competency: AURLTE3002 Repair engines and associated engine components (light vehicle)
Difficulty: Medium
Section: Installing cylinder heads

11.                (p.  )As a general rule, head gaskets:
A. can be used more than once
B. can be used either way up
C. must be replaced every 10 000 km
D. can be used only once

 

Competency: AURLTE3002 Repair engines and associated engine components (light vehicle)
Difficulty: Easy
Section: Installing cylinder heads

12.                (p.  )When using a torque wrench to tension head bolts:
A. they are tightened in one step
B. they are tightened in two steps
C. they are overtightened and then backed off to the correct tension
D. they are tightened in three steps

 

Competency: AURLTE3002 Repair engines and associated engine components (light vehicle)
Difficulty: Easy
Section: Installing cylinder heads

13.                (p.  )For an accurate valve-clearance adjustment:
A.

adjust when cold then recheck when hot

1.    

adjust when hot then recheck when cold

1.   use two feeler gauges, one a little thicker and one a little thinner
D.

use a dial gauge on the cam end of the rocker arm

 

 

Competency: AURLTE3002 Repair engines and associated engine components (light vehicle)
Difficulty: Medium
Section: Valve-clearance adjustments

14.                (p.  )The most time-efficient method of valve-clearance adjustment on a V6 engine is usually achieved by starting at:
A. number one and following the firing order
B. the rear cylinders and progressing forward
C. the front and going towards the rear
D. the left bank and following with the right bank

 

Competency: AURLTE3002 Repair engines and associated engine components (light vehicle)
Difficulty: Medium
Section: Valve-clearance adjustments

15.                Weak valve springs could cause:
A.burnt valves
B. tappet noises
C. side thrusts on the guide
D.

excessive valve-train friction

 

 

Competency: AURLTE3002 Repair engines and associated engine components (light vehicle)
Difficulty: Hard
Section: Servicing valves and springs

16.                (p.  )Valve seals can be replaced in some engines without removal of the cylinder head by:
A. using a small tool through the plughole to support the valve
B. holding the valve up with a screwdriver or similar tool
C. using the piston to stop the valve falling down
D.

applying air pressure to the cylinder on the compression stroke

 

 

Competency: AURLTE3002 Repair engines and associated engine components (light vehicle)
Difficulty: Medium
Section: Servicing valves and springs

17.                (p.  )Hydraulic lifters can be tested for:
A. ramp speed
B. leak-down rate
C. oscillation rate
D. rotation speed

 

Competency: AURLTE3002 Repair engines and associated engine components (light vehicle)
Difficulty: Easy
Section: Servicing hydraulic lifters and lash adjusters

18.                (p.  )When reconditioning valve faces, they are usually:
A. ground
B. machined
C. coated
D. polished

 

Competency: AURTTM3011 Recondition engine cylinder heads
Difficulty: Easy
Section: Valve refacers and refacing

19.                (p.  )Valve seats can be reconditioned by either:
A. grinding or stamping
B. cutting or polishing
C. stamping or cutting
D. grinding or cutting

 

Competency: AURTTM3011 Recondition engine cylinder heads
Difficulty: Easy
Section: Valve-seat reconditioning

20.                (p.  )

Typical valve stem to guide clearance should be between:

1.   0.5 mm and 1.0 mm
B. 0.5 mm and 0.1 mm
C. 0.05 mm and 1.0 mm
D. 0.05 mm and 0.1 mm

 

Competency: AURTTM3011 Recondition engine cylinder heads
Difficulty: Medium
Section: Servicing valve guides

21.                (p.  )The outer diameter of new valve guides must be:
A. marginally larger than the cylinder head guide hole
B. marginally smaller than the cylinder head guide hole
C. the same as the diameter of the valve stem
D. the same size as the cylinder head guide hole

 

Competency: AURLTE3002 Repair engines and associated engine components (light vehicle)
Difficulty: Hard
Section: Servicing valve guides

22.                (p.  )Knurling valve guides is a process that:
A. increases the guide diameter to fit the new valve
B. establishes vertical grooves for oil retention
C. eliminates the need to ream
D. reduces the effective guide diameter

 

Competency: AURTTM3011 Recondition engine cylinder heads
Difficulty: Medium
Section: Servicing valve guides

23.                (p.  )

The tool used to measure camshaft lift for comparison to the specification is:

1.   a dial gauge
B. a ball gauge
C.

a vernier caliper

1.   a crankshaft degree circle

 

Competency: AURLTE3002 Repair engines and associated engine components (light vehicle)
Difficulty: Medium
Section: Camshaft service

24.                (p.  )

Timing belts should NOT be:

1.   bent or kinked
B. twisted or folded
C. all of the given options are correct
D. exposed to oil

 

Competency: AURLTE3002 Repair engines and associated engine components (light vehicle)
Difficulty: Easy
Section: Camshaft service

25.                (p.  )If the assembled valve height is increased, then:
A. the valve spring force remains the same
B. the valve spring force is increased
C. the valve spring force is reduced
D.

none of the given options is correct.

 

 

Competency: AURTTM3011 Recondition engine cylinder heads
Difficulty: Medium
Section: Servicing valve-seats

26.                (p.  )

During removal of the rocker shaft assembly for OHC engines, it is important that:

1.    

all retaining bolts are gradually and evenly released

1.    

the engine is set at approximately 60° BTDC so that the valves don’t release onto the pistons

1.    

the engine is set at TDC #1 with timing marks aligned

1.    

the cylinder head is removed before removal of the rocker shaft assembly

 

 

Competency: AURLTE3002 Repair engines and associated engine components (light vehicle)
Difficulty: Medium
Section: Dismantling the valve mechanism

27.                (p.  ) What process is being carried out in the following picture?

A.  Valve lapping.
B.  Seat removal.
C.  Valve removal.
D.  Seat grinding.

 

Competency: AURTTM3011 Recondition engine cylinder heads
Difficulty: Easy
Section: Valve-seat reconditioning

28.                (p.  )After cleaning, a cylinder head should be checked for:
A. cracks
B. warping
C.

all of the given options are correct.

1.    

rough surface or corrosion

 

 

Competency: AURLTE3002 Repair engines and associated engine components (light vehicle)
Difficulty: Medium
Section: Removing and dismantling cylinder heads

 

 

Chapter 03 Testbank Summary

Category	# of Questions
Competency: AURLTE3002 Repair engines and associated engine components (light vehicle)	22
Competency: AURTTM3011 Recondition engine cylinder heads	6
Difficulty: Easy	14
Difficulty: Hard	2
Difficulty: Medium	12
Section: Camshaft service	2
Section: Cylinder head service	1
Section: Dismantling the valve mechanism	1
Section: Installing cylinder heads	4
Section: Removing and dismantling cylinder heads	7
Section: Servicing hydraulic lifters and lash adjusters	2
Section: Servicing valve guides	3
Section: Servicing valve-seats	1
Section: Servicing valves and springs	2
Section: Valve refacers and refacing	1
Section: Valve-clearance adjustments	2
Section: Valve-seat reconditioning	2

 

Chapter 05 Testbank