Mechanics Flashcards
Diesel fuel has a safety advantage over gasoline because it is
less likely to explode
One advantage of a stern drive engine over an outboard motor is that it
uses fuel more efficiently
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
The easiest way to approach the problem of corrosion on battery terminals is to
coat them with grease
Inboards, stern drives, and outboards get their names from
how they are installed
Which of the following is a cooling system in current use?
air
open
dual
ALL of the above
If you have two batteries, you should have
a battery isolation switch
If your engine has points and if you change them, always also change your
condenser
An explosion through the air intake of a carburetor is a
backfire
To protect your battery from accidental short circuits, the terminals should be
protected by a cover
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
Modern outboard motors require
NO lead in the gasoline - Unleaded
Proper lubrication in a two stroke gasoline outboard engine is provided by
oil mixed in the gasoline or injected with the gasoline
The first thing to check if your fully charged battery will not crank your engine is
your battery terminals
Maintenance procedures include
routine
winterizing
springtime fitting out
ALL of the above
Sacrificial metals are used to keep other metals from eroding. They are made of
zinc
To prevent explosions from backfires, stern-drive and inboard engines are equipped with
backfire flame arrestors
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
Most marine engines will only start in
neutral
The newest engines available use what kind of ignition system?
electronic
Which of the following is an advantage of an outboard over a stern drive?
is easier to replace
The principal reason for covering a battery is to
prevent accidental short circuits
To check the oil level in the gears of an outboard or stern drive lower unit
remove the UPPER screw cap
Diesel engines ignite their fuel
by heat of compression
