AQUACULTURE

A simple centrifugal pump driven by a belt connected to the crankshaft of the engine is called water pump.

• TRUE

• FALSE

• MAYBE

• NONE OF THESE

In operating the water pump, use contaminated gasoline or an oil/gasoline mixture.

• True

• False

• Maybe

• None of these

Ensure that the engine has the appropriate liquid to be pumped while priming the water pump.

• True

• False

• Maybe

• None of these

In priming the water pump, do not open or switch battery circuits while the engine is running to prevent alternator damage.

• True

• False

• Maybe

• None of these

Refractometer is designed to measure the salinity of salt water and brine and it provides a direct reading of the specific gravity and concentration (parts per thousand) of salt in water.

• True

• False

• Maybe

• None of these

This refers to a device used to measure the acidity and alkalinity if the samples.

• Water pump

• pH meter

• refractometer

• none of these

1.      It is the most popular type of measuring tools which usually has 6 or 12 inches

length.

• Speed square

• Caliper

• Ruler

• Hammer

Below are parts of Refractometer EXCEPT;

• Blue plate

• Daylight plate

• Try square

• Eyepiece

The picture above is called ________.

• Pliers

• Hammers

• Host

• Suction hose

If the pH level is ___ the water is neutral

• 5

• 14

• 8

• 7