Deck 10: Cleaning Equipment and Methods

Question 1

Moisture contributes to the accumulation of sludge in the engine oil.

Answer 1

True

Question 2

Which of the following methods is LEAST-Likely to be used to clean parts that have been removed from an engine or transmission?

A)Chemical cleaning
B)Abrasive cleaning
C)Thermal cleaning
D)Dry brushing

Answer 2

D

Question 3

____________________ gases leak past the piston rings into the crankcase.

Answer 3

Blowby

Question 4

A(n) ____________________ is used for cleaning grease from smaller parts.

Question 5

If aluminum is cleaned in the solution designed for ferrous metals, it reacts and slowly dissolves.

Question 6

The choice for postcleaning recommended by most oven companies is MOST-Likely to be:

A)bead blasting
B)abrasive cleaning
C)shot blasting
D)ultrasonic cleaning

Question 7

The MOST-Likely method used to clean ferrous parts such as the block, heads, and sometimes crankshafts and connecting rods is:

A)soda blasting
B)shot blasting
C)abrasive cleaning
D)bead blasting

Question 8

During a discussion, Technician A says that the hot soak tank does not clean oil galleries as well as the spray washers do. Technician B says that the hot soak tank is the superior cleaner. Who is correct?

A)A only
B)B only
C)Both A and B
D)Neither A nor B

Question 9

Dirt and sludge are the only water-soluble materials found on automotive parts.

Question 10

A wire wheel is LEAST-Likely to be mounted on a:

A)bench grinder
B)pedestal grinder
C)drill motor
D)hot tank

Question 11

During a discussion, Technician A says that if you cannot tell by a visual inspection whether a painted engine part is aluminum or ferrous, you should use a magnet. Technician B says that the use of a magnetic would prove nothing as ferrous materials and aluminum are not magnetic. Who is correct?

A)A only
B)B only
C)Both A and B
D)Neither A nor B

Question 12

A chemical cooling system cleanser can be used to help remove ____________________ from the radiator and water jackets before removing the engine from the vehicle.

Question 13

____________________ specifically for strength is done only in heavy-duty or high-performance instances; it is a controlled process that uniformly compresses stressed areas of a part.

Question 14

____ include(s) petroleum by-products, gasket sealers and paints, carbon, and other by-products of combustion.

A)Blowby gases
B)Organic soils
C)Sludge
D)Ferrous gases

Question 15

All of the following are advantages of thermal cleaning EXCEPT:

A)cleaning is completed in 10 minutes.
B)heat turns rust and scale in the water jackets to powder.
C)the internal oil galleries in the block are thoroughly cleaned.
D)lower cost.

Question 16

All of the following statements are true EXCEPT:

A)spray washers have skimmers to remove oily contaminants from the surface of the solution.
B)sludge can be neutralized and solidified with chemicals so that it can be disposed as nonhazardous waste.
C)alkaline cleaning will remove rust and scale, but acid cleaners will not.
D)sandpaper is sometimes used to clean machined surfaces but should not be used on bimetal engines that have super smooth head and block surfaces.

Question 17

A ____ restricts pressure to around 30 psi for air-drying parts.

A)drill motor
B)bench grinder
C)pedestal grinder
D)safety blowgun

Question 18

Spills often occur when an engine block mounted on an engine stand is turned upside down to begin disassembly.

Question 19

____________________ solvent is commonly recycled, and although the use of gloves is recommended, it is not a major irritant to most people's skin.

Question 20

Most automotive soaps are alkaline.

Question 21

What precautions should you take when using a high-pressure, rubber-tipped blowgun?

Question 22

What are the advantages of a hot spray washer?

Question 23

Following cleaning in a spray or soal tank, oil galleries must be cleaned with a brush after the plugs sealing the ends of the galleries are removed. Why is this step necessary?

Question 24

Name three types of solvents.

Question 25

What precautions should you take when using a bead blaster?