Aviation T2 Unit 3 Section A Quiz Study

A fluids speed, shape and viscosity is what factors affect fluid friction

• True
• False

A boat moving through the water is similar to what moving through air?

• A moving freight train
• An airfoil
• A hot air balloon
• A lost F-35 jet

Air has a greater viscosity than water

• true
• false

A stream of fluid attaching itself to convex surface is an example of what?

• The coanda effect
• bouyancy
• the magnus effect
• lift

Air density is affected by viscosity, friction and pressure

• True
• False

psi is a measurement for for what?

• Tire length
• viscosity
• atmospheric pressure
• friction

Air density decreases as altitude increases.

• true
• false

Temperature and humidity is inversely related to air density while pressure is directly related to air density

• True
• False

Fluid friction is friction that is created by the resistance to motion between a fluid and an object. Viscosity refers to resistive forces that occur between layers of fluid when it attempts to flow. It is a fluid’s opposition to flow.

• True
• False

Can two objects with different volumes or masses have different densities?

• True
• False