Deck 5: Cleaning the Engine

Question 1

Technician A says to use a coarse sandpaper when cleaning bimetal engines with super-smooth cast iron block surfaces. Technician B says a sharp gasket scraper is recommended for use on machined aluminum. Who is correct?

A) Technician A
B) Technician B
C) Both technicians
D) Neither technician

Answer 1

D

Question 2

A small wire brush on an electric drill is best used for cleaning aluminum surfaces.

Answer 2

True

Question 3

Technician A says carbon-removal additives are work well when added prior to removing the engine. Technician B says carbon-removal additives should be used only in a well-ventilated area. Who is right?

A) Technician A
B) Technician B
C) Both technicians
D) Neither technician

Answer 3

C

Question 4

Name the three types of chemical cleaners used in engine repair.

Question 5

A special wire wheel called an _____ wire wheel is available for high rpm use.

A) enveloped
B) encased
C) entrenched
D) encapsulated

Question 6

The inside of a dirty engine can harbor hazardous waste.

Question 7

Name three advantages of a hot spray tank.

Question 8

Briefly explain why pressure washing and steam cleaning have become grease removal methods of the past due?

Question 9

Heated alkaline materials cut grease very well.

Question 10

Alkaline cleaners will remove rust and scale.

Question 11

Technician A says a hot spray washer is sometimes called a jet washer. Technician B says an advantage of a spray washer is that it cleans oil galleries as well as a hot soak tank. Who is right?

A) Technician A
B) Technician B
C) Both technicians
D) Neither technician

Question 12

Technician A says hazardous waste laws regulating solvent disposal do not apply to water-based solvents. Technician B says Stoddard solvent is usually recycled. Who is correct?

A) Technician A
B) Technician B
C) Both technicians
D) Neither technician

Question 13

Technician A says baking soda is now being used in blast cleaning. Technician B says some ring manufacturers blame glass bead cleaning for ring failure. Who is correct?

A) Technician A
B) Technician B
C) Both technicians
D) Neither technician

Question 14

Technician A says ultrasonic cleaning is used by some rebuilders for small parts. Technician B says ultrasonic cleaning is a process used by jewelers and dentists. Who is correct?

A) Technician A
B) Technician B
C) Both technicians
D) Neither technician

Question 15

Technician A says shot blasting is becoming more popular due to environmental concerns about other cleaning methods. Technician B says shot sizes are rated 00 to 110. Who is correct?

A) Technician A
B) Technician B
C) Both technicians
D) Neither technician

Question 16

How would you remove a severe case of scale buildup in an engine you are rebuilding?

Question 17

What are the three processes (steps) used with oven cleaning?

Question 18

Technician A says glass bead blasting is very effective in removing carbon. Technician B says bead or shot may be used to improve the strength of parts. Who is right?

A) Technician A
B) Technician B
C) Both technicians
D) Neither technician

Question 19

One of the newer blast cleaning methods uses baking soda.

Question 20

Technician A says to clean an aluminum engine in an alkaline solution for best results. Technician B says for best results, disassemble the heads before hot tanking. Which technician is right?

A) Technician A
B) Technician B
C) Both technicians
D) Neither technician