Altimeter and VSI

What type of air pressure is always present whether the air is at rest or in motion?

• Dynamic pressure

• Total pressure

• Static pressure

• Thermal pressure

How is dynamic pressure calculated?

• It is the pressure from air brought to a stop

• It is the pressure from still air

• It is the difference between total and static pressures

• It is the sum of static and total pressures

Which of the following is NOT one of the primary instruments operated by the pitot-static system?

• Altimeter

• Vertical speed indicator (VSI)

• Airspeed indicator

• Turn coordinator

What is the function of the altimeter in an aircraft?

• To indicate the aircraft's altitude

• To measure the aircraft's speed

• To show the aircraft's heading

• To display the rate of climb or descent

What does the vertical speed indicator (VSI) show?

• The rate at which the aircraft is climbing or descending

• The aircraft's speed relative to the ground

• The aircraft's altitude above sea level

• The aircraft's angle of bank

Which instruments use only the static port for their operation?

• Altimeter and airspeed indicator

• Vertical speed indicator and airspeed indicator

• Altimeter and vertical speed indicator

• Airspeed indicator and pressure indicator

What types of pressure enter through the small hole in the front of the pitot tube?

• Dynamic pressure only

• Static pressure only

• Total pressure (dynamic + static)

• No pressure

Why are some pitot tubes heated?

• To measure temperature

• To prevent ice from blocking the air inlet or drain hole

• To increase air pressure

• To drain moisture faster

What must pilots ensure about the pitot tube before flight?

• That it is turned off

• That it is heated to a certain temperature

• That all openings of the pitot tube are clear

• That it is disconnected

What type of air pressure does the Vertical Speed Indicator use?

• Total pressure

• Static pressure

• Dynamic pressure

• Impact pressure