137. For ALT 1 or ALT 2 to start, battery power must be available. TRUE.
138. When must the avionics switch be off? Prior to activating the MASTER
switches, starting the engine, or applying an external power source.
139. What causes the LOW VOLTS warning light to illuminate: Volts less than
approximately 24.5 volts.
140. What does the Volt/Amp meter indicate? Essential bus voltage, main bus
voltages ALT 1, ALT 2, BAT 1 amps.
141. What is indicated when an ALT fail caution light flashes? When it is on
steady? Flashes: over-current condition. Steady: alternator failure.
142. Where is the ground service receptacle located and where do you find the
procedure? Location: Just aft of the cowl on the left side. Procedure: POH,
Section 8,
Ground Handling, Servicing, and Maintenance.
143. What is the convenience outlet? A 12-volt outlet in the center console that can
be used for portable entertainment equipment.
144. List the exterior lights? Position lights, Anti-collision lights, Landing lights,
Recognition (Halo) lights.
145. List the interior lights? Dimmable incandescent instrument bezel lights,
dimmable red LED instrument panel flood lights, reading lights that are dimmable
for the two front seats, and a dimmable overhead dome light.
146. Three controls exist for heating and ventilation. The cabin HEAT control does
what? Controls the amount of hot air that enters the mixing plenum (see POH
Figure 7-67).
147. The cabin COLD air control does what? Controls the amount of fresh cooling
air that enters the mixing plenum.
148. The cabin air selector does what? Controls the amount of conditioned air (air
leaving the mixing plenum) that flows to the cabin and/or the windshield defrost
diffuser. (Note: This control is located between the HEAT and COLD selectors
and is only marked with a defroster symbol and a human body symbol.)
Cirrus SR-20 POH Summary
Page 14 of 18
