CM Advanced Ch.5

Question 1

Basic principles of all carburetors are the same and may be found in the construction mechanic 3&2, NAVEDTRA 10644-G1, or what U.S army publication?

Answer 1

TM-9-8000

Question 2

Compressed air used for cleaning purposes should not exceed what psi?

Answer 2

30

Question 3

What systems are an increasingly popular alternative to the carburetor for providing an air-fuel mixture?

Answer 3

Fuel-injection

Question 4

What is the most precise form of fuel injection and is the most complex?

Answer 4

Timed injection

Question 5

There are two types of timed fuel injection: what are they?

Answer 5

Mechanical and electrical

Question 6

What is a form of continuous injection-one or two injectors delivering gasoline to the engine from one central point in the intake manifold?

Answer 6

Throttle body injection

Question 7

What is the most frequent type of servicing you will perform on a gasoline fuel injection system?

Answer 7

Preventive maintenance

Question 8

Gasoline fuel injection systems operate with fuel pressures up to how many times greater than that of standard gasoline fuel systems?

Answer 8

Five(5)

Question 9

Gasoline fuel injection systems have up to eight different manufacturers and over how many different models?

Answer 9

21

Question 10

There are three types of caterpillar fuel injection systems: the forged body, the compact, and what metering systems?

Answer 10

Sleeve

Question 11

Normal governor operation takes over at low-idle speed, approximately what rpm?

Answer 11

500

Question 12

The most common causes of low pressure are restricted fuel supply, air leaks on the suction side of the pump, worn transfer pump blades, or a malfunctioning what?

Answer 12

Regulator valve

Question 13

What fuel injection is used on multi-fuel engines?

Answer 13

American Bosch

Question 14

The purpose of what is to deliver measured quantities of fuel, accurately under high pressure to the spray nozzle for injection?

Answer 14

Fuel pump

Question 15

The American Bosch nozzle nit is how many inches long, and the nozzle has a hand-printed drilling code?

Answer 15

3

Question 16

The Robert Bosch nozzle nut is how many inches long, and the nozzle tip has a machine-etched drilling code?

Answer 16

2

Question 17

If you can check the condition of a nozzle before it is diassembled by using the what?

Answer 17

Kiene

Question 18

The result of most fuel pump failures is that either no fuel or an insufficient amount of fuel is delivered to the what?

Answer 18

Fuel injectors

Question 19

What is an emissions control device and removing it or tampering with it is in direct violation of state and federal vehicle exhaust emissions laws?

Answer 19

Aneroid

Question 20

All pump tests should be made with the testing fuel oil temperature between 90°F and what?

Answer 20

100°F

Question 21

The three major components of the air induction systems that increase internal combustion engine efficiency are blowers, superchargers, and what else?

Answer 21

Turbochargers

Question 22

What are used to clear the cylinders of exhaust gases to introduce a new charge of fresh air?

Answer 22

Scavenging blowers

Question 23

What is a gear-driven air pump that uses rotors to force air into the engine cylinders when a requirement for more power exists?

Answer 23

Supercharger

Question 24

What unit that is driven by exhaust gas to force (charged) air into the Diesel engine cylinders for more complete burning of fuel and to increase engine power?

Answer 24

Turbocharger

Question 25

Always locate the oil outlet at least how many degrees below the turbocharger horizontal center line when the unit is in the operating position?

Answer 25

45

Question 26

What is the most common cold starting system for Diesel engines?

Answer 26

Glow plug