B

Question 1

Back Course (BC)

Answer 1

The reciprocal of the localizer course
for an ILS. When flying a back-course approach, an aircraft
approaches the instrument runway from the end at which the
localizer antennas are installed.

Question 2

Balance tab

Answer 2

An auxiliary control mounted on a primary
control surface, which automatically moves in the direction
opposite the primary control to provide an aerodynamic
assist in the movement of the control. Sometimes referred
to as a servo tab.

Question 3

Baro-aiding

Answer 3

A method of augmenting the GPS integrity
solution by using a nonsatellite input source. To ensure that
baro-aiding is available, the current altimeter setting must
be entered as described in the operating manual.

Question 4

Barometric scale

Answer 4

A scale on the dial of an altimeter to which
the pilot sets the barometric pressure level from which the
altitude shown by the pointers is measured.

Question 5

Basic empty weight (GAMA)

Answer 5

Basic empty weight
includes the standard empty weight plus optional and special
equipment that has been installed.

Question 6

Bernoulli’s Principle

Answer 6

A principle that explains how the
pressure of a moving fluid varies with its speed of motion.
An increase in the speed of movement causes a decrease in
the fluid’s pressure.

Question 7

Biplanes

Answer 7

Airplanes with two sets of wings.

Question 8

Block altitude

Answer 8

A block of altitudes assigned by ATC to
allow altitude deviations; for example, “Maintain block
altitude 9 to 11 thousand.”

Question 9

Bypass ratio

Answer 9

The ratio of the mass airflow in pounds per
second through the fan section of a turbofan engine to the
mass airflow that passes through the gas generator portion
of the engine.