POST TEST FLUID

Density is

• the weight of a fixed mass of something

• the volume of a fixed weight of something

• the weight of a fixed volume of something

• the mass of a fixed volume of something

Which of the following is a fluid?

• helium
• ice
• iron
• gold

What is an ideal fluid?

• A fluid which has no viscosity

• A fluid which is incompressible

• A fluid which has no surface tension

• All the above

Which of the following properties is NOT a characteristic of an ideal fluid?

• laminar flow
• turbulent flow
• nonviscous
• incompressable

A reservoir of glycerin has a mass of 1100kg and a volume of 0.9m3. Calculate its weight

• 10791N

• 11000N

• 990N

• 10799N

A reservoir of glycerin has a mass of 1100kg and a volume of 0.9m3. Calculate its mass density

• 1222.22 kg/m3

• 990 kg/m3

• 11990 kg/m3

• 1.22 kg/m3

A reservoir of glycerin has a mass of 1100kg and a volume of 0.9m3. Calculate its specific weight

• 990 N/m3

• 11990 N/m3

• 1222.22 N/m3

• 10791 N/m3

A container of volume 3m3 has 25.5kN of an oil. Find the specific weight

• 76500N/m3

• 76.3N/m3

• 8.5N/m3

• 8500N/m3

What is the specific gravity of a liquid, whose specific weight is 7.36 kN/m3 ?

• 7360

• 7.36

• 0.75

• 72.2

A drum of 1 m3 volume contains 8.5kN an oil when full. Find its specific weight.

• 0.866 kN/m3

• 8.5 kN/m3

• 85 kN/m3

• 83.385 kN/m3