Mechanics

Question 1

Diesel fuel has a safety advantage over gasoline because it is

Answer 1

less likely to explode

Question 2

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

Answer 2

uses fuel more efficiently

Question 3

Marine engines can be classified by

Answer 3

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

ALL of the above

Question 4

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

Answer 4

coat them with grease

Question 5

Inboards, stern drives, and outboards get their names from

Answer 5

how they are installed

Question 6

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

Answer 6

air
open
dual

ALL of the above

Question 7

If you have two batteries, you should have

Answer 7

a battery isolation switch

Question 8

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

Answer 8

condenser

Question 9

An explosion through the air intake of a carburetor is a

Answer 9

backfire

Question 10

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

Answer 10

protected by a cover

Question 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

Answer 11

a crankcase with oil

Question 12

Modern outboard motors require

Answer 12

NO lead in the gasoline - Unleaded

Question 13

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

Answer 13

oil mixed in the gasoline or injected with the gasoline

Question 14

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

Answer 14

your battery terminals

Question 15

Maintenance procedures include

Answer 15

routine
winterizing
springtime fitting out

ALL of the above

Question 16

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

Answer 16

zinc

Question 17

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

Answer 17

backfire flame arrestors

Question 18

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

Answer 18

leave the tank full and add stabilizer to the fuel

Question 19

Most marine engines will only start in

Answer 19

neutral

Question 20

The newest engines available use what kind of ignition system?

Answer 20

electronic

Question 21

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

Answer 21

is easier to replace

Question 22

The principal reason for covering a battery is to

Answer 22

prevent accidental short circuits

Question 23

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

Answer 23

remove the UPPER screw cap

Question 24

Diesel engines ignite their fuel

Answer 24

by heat of compression