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Diesel engines ignite their fuel

by heat of compression

1

Diesel fuel has a safety advantage over gasoline because it is

less likely to explode

2

One advantage of a stern drive engine over an outboard motor is that it

uses fuel more efficiently

3

Marine engines can be classified by

how they are installed
the number of operating cycles (2 or 4 stroke cycle)
the type of fuel they use

ALL of the above

4

The easiest way to approach the problem of corrosion on battery terminals is to

coat them with grease

5

Inboards, stern drives, and outboards get their names from

how they are installed

6

Which of the following is a cooling system in current use?

air
open
dual

ALL of the above

7

If you have two batteries, you should have

a battery isolation switch

8

If your engine has points and if you change them, always also change your

condenser

9

An explosion through the air intake of a carburetor is a

backfire

10

To protect your battery from accidental short circuits, the terminals should be

protected by a cover

11

One feature that you will find on a four-cycle engine that you never find on a two-stroke cycle outboard motor is/are

a crankcase with oil

12

Modern outboard motors require

NO lead in the gasoline - Unleaded

13

Proper lubrication in a two stroke gasoline outboard engine is provided by

oil mixed in the gasoline or injected with the gasoline

14

The first thing to check if your fully charged battery will not crank your engine is

your battery terminals

15

Maintenance procedures include

routine
winterizing
springtime fitting out

ALL of the above

16

Sacrificial metals are used to keep other metals from eroding. They are made of

zinc

17

To prevent explosions from backfires, stern-drive and inboard engines are equipped with

backfire flame arrestors

18

To protect agains gasoline gum when your engine is not in use for a long period of time

leave the tank full and add stabilizer to the fuel

19

Most marine engines will only start in

neutral

20

The newest engines available use what kind of ignition system?

electronic

21

Which of the following is an advantage of an outboard over a stern drive?

is easier to replace

22

The principal reason for covering a battery is to

prevent accidental short circuits

23

To check the oil level in the gears of an outboard or stern drive lower unit

remove the UPPER screw cap