1.
The PT6A engine compressor section
consists of:
A. Three axial stages combined with a
single centrifugal stage, and a com-
pressor turbine
B. A s i n g l e - s t a g e t u r b i n e a n d a c e n -
trifugal compressor only
C. A single-stage compressor turbine
only
D. Twin-spool, single-stage turbines
2.
The PT6A engine power section con-
sists of:
A. One compression stage and four tur-
bine stages.
B. A single-stage power turbine.
C. A s i n g l e - s t a g e t u r b i n e a n d a c e n -
trifugal compressor.
D. Twin-spool, single-stage turbines.
3.
T h e f u n c t i o n o f t h e r e d u c t i o n g e a r
system is to provide gear reduction:
A. For the propeller
B. B e t we e n t h e c o m p r e s s o r a n d t h e
power turbine
C. For the air plane’s accessor y drive
section
D. B e t we e n t h e c o m p r e s s o r a n d t h e
compressor turbine
4.
If a chip detector light illuminates, you
must do one of the following:
A. Continue nor mal flight operations
a n d h ave t h e f i l t e r c h e c k e d a f t e r
landing.
B. Reduce torque to 500 foot-pounds
for the remainder of the flight.
C. Monitor the engine instruments and,
if nor mal, no action is required.
D. Shut the engine down and land as
soon as practical.
5.
During g round operation at LO IDLE,
you note that ITT is exceeding 685°C.
Which of the following actions would
you consider best to reduce ITT?
A. Move the propeller control lever to
the low r pm position
B. Reduce accessor y load or increase
N
1
r pm
C. M ov e t h e p owe r l e v e r i n t o t h e
g round f ine (Beta)/reverse range
D. Shut down and have the propeller
LO IDLE stops checked
6.
When using maximum reverse power
with the prop lever full-forward, you
wo u l d e x p e c t a m a x i m u m p r o p e l l e r
r pm of:
A. 1,900 r pm
B. 1,750 r pm
C. 1,825 r pm
D. 2,000 r pm
7.
D u r i n g a g r o u n d s t a r t o f t h e r i g h t
engine, the IGNITION ON light should
illuminate:
A. At 10% N
1
r pm.
B. When the condition lever is moved
to LO IDLE.
C. At a stabilized 12% N
1
.
D. When the star t switch is moved to
the IGNITION and ENGINE START
position.
KING AIR C90GTi/C90GTx
PILOT TRAINING MANUAL
7-45
FOR TRAINING PURPOSES ONLY
QUESTIONS
7
POWERPLANT
Summary of Contents for C90GTi
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