AMT 287 packet exam questions with correct
answers
turbine |engines |normally |have |how |many |igniter |plugs? |- |CORRECT |ANSWER✔✔-2
the |conditions |for |igniting |the |fuel-air |charge |in |a |turbine |engine |are |________ |severe |than |
they |are |in |reciprocating |engines |- |CORRECT |ANSWER✔✔-more
turbine |engine |ignition |systems |are |rated |according |to |the |energy |in |the |spark |units |of |
________ |- |CORRECT |ANSWER✔✔-joules
the |duration |of |the |spark |across |the |gaps |of |a |turbine |engine |igniter |is |_________ |- |CORRECT |
ANSWER✔✔-short
a |high |energy |ignition |system |produces |the |high |current |in |each |spark |by |storing |electrons |in |a
|- |CORRECT |ANSWER✔✔-capacitor |or |condenser
turbine |engine |igniters |__________ |be |serviced |in |the |field |- |CORRECT |ANSWER✔✔-cannot
intermittent-duty |ignition |systems |must |be |operated |according |to |a |________________ |which |
allows |them |to |cool |down |between |the |times |that |they |are |operated |- |CORRECT |ANSWER✔✔-
duty |cycle
interference |with |electronic |equipment |installed |in |the |aircraft |by |the |electromagnetic |energy |
generated |in |the |ignition |exciter |is |prevented |by |the |_________ |in |the |exciter |unit |filter |- |
CORRECT |ANSWER✔✔-inductor
,the |vibrator |in |an |ignition |exciter |changes |DC |into |___________ |- |CORRECT |ANSWER✔✔-
pulsating |DC
the |electrons |that |flow |across |the |gap |in |the |igniter |are |those |that |have |been |stored |in |the |
_______________________ |capacitors |- |CORRECT |ANSWER✔✔-storage |and |trigger
energy |that |remains |stored |in |the |capacitors |when |the |ignition |system |is |shut |down |is |bled |off
|through |the |________________________ |resistors |- |CORRECT |ANSWER✔✔-safety |and |
bleeder
the |high |voltage |AC |exciter |uses |a |__________________ |circuit |to |increase |the |voltage |from |
the |transformer |- |CORRECT |ANSWER✔✔-voltage-doubler
two |basic |types |of |turbine |engine |igniters |are |- |CORRECT |ANSWER✔✔--spark |igniters
-glow |plug |igniters
shunted |gap |igniters |are |normally |used |in |_______ |voltage |systems |- |CORRECT |ANSWER✔✔-
low
after |removing |the |power |lead |from |an |exciter, |you |should |wait |for |a |specified |length |of |time |
before |removing |the |lead |from |the |igniter. |This |period |of |time |allows |the |energy |that |is |stored
|in |the |____________ |to |bleed |off |to |the |ground |- |CORRECT |ANSWER✔✔-capacitors
after |removing |the |lead |from |the |igniter, |ground |the |center |conductor |to |the |_________ |- |
CORRECT |ANSWER✔✔-engine
the |J-85 |engine |was |manufactured |by |- |CORRECT |ANSWER✔✔-General |electric
, the |J-85 |was |a |__________ |spool |engine |which |produces |approx. |2000 |lbs |of |thrust |w/o |the |
afterburner |depending |on |the |model |- |CORRECT |ANSWER✔✔-single
`the |J-85 |engine |was |built |with |an |afterburner. |the |afterburner |provided |a |boost |in |thrust |of |
approx |________% |increase |to |the |total |thrust |available |from |the |engine |- |CORRECT |
ANSWER✔✔-50 |percent
`the |j-85 |engine |produces |its |compression |by |using |- |CORRECT |ANSWER✔✔-a |series |of |
rotating |blades |and |stationary |blades |to |move |the |air |parallel |to |the |axis |of |engine
the |J85 |engine |was |installed |in |the |_________ |USAF |jet |trainer |aircraft. |It |was |the |first |trainer |
to |be |capable |of |supersonic |flight |and |is |still |in |use |as |a |jet |training |aircraft |- |CORRECT |
ANSWER✔✔-T-38
Describe |the |operating |principal |of |the |afterburner |used |on |the |J85 |engine |, |this |applies |to |all |
afterburners |- |CORRECT |ANSWER✔✔-raw |fuel, |the |amount |governed |by |the |afterburner |fuel |
control |is |sprayed |(EIGHT |spray |bars) |into |the |extended |exhaust |tube |attached |to |basic |engine,
|then |ignited |by |EIGHT |igniter |plugs |and |additionally |the |airflow |is |slowed |down |to |ensure |
better |mixing |as |it |is |then |exhausted |out |of |the |back |of |the |nozzle
the |cockpit |of |a |T38 |engine |will |have |a |N1 |and |N2 |gauges |to |monitor |the |operation |of |the |
engine |since |the |engine |is |a |two |spool |engine |having |both |a |low |pressure |compressor |and |a |
high |pressure |compressor |with |the |associated |low |pressure |turbines |and |high |pressure |
turbines |- |CORRECT |ANSWER✔✔-FALSE
the |T38 |engine |studied |in |the |lab |consist |of |_______ |compressor |stages |and |______ |turbine |
stages |- |CORRECT |ANSWER✔✔-8, |2
the |T38 |engine |studied |in |lab |is |designed |with |a |________________ |spool |- |CORRECT |
ANSWER✔✔-single |spool |consisting |of |one |compressor |with |a |two |stage |turbine
answers
turbine |engines |normally |have |how |many |igniter |plugs? |- |CORRECT |ANSWER✔✔-2
the |conditions |for |igniting |the |fuel-air |charge |in |a |turbine |engine |are |________ |severe |than |
they |are |in |reciprocating |engines |- |CORRECT |ANSWER✔✔-more
turbine |engine |ignition |systems |are |rated |according |to |the |energy |in |the |spark |units |of |
________ |- |CORRECT |ANSWER✔✔-joules
the |duration |of |the |spark |across |the |gaps |of |a |turbine |engine |igniter |is |_________ |- |CORRECT |
ANSWER✔✔-short
a |high |energy |ignition |system |produces |the |high |current |in |each |spark |by |storing |electrons |in |a
|- |CORRECT |ANSWER✔✔-capacitor |or |condenser
turbine |engine |igniters |__________ |be |serviced |in |the |field |- |CORRECT |ANSWER✔✔-cannot
intermittent-duty |ignition |systems |must |be |operated |according |to |a |________________ |which |
allows |them |to |cool |down |between |the |times |that |they |are |operated |- |CORRECT |ANSWER✔✔-
duty |cycle
interference |with |electronic |equipment |installed |in |the |aircraft |by |the |electromagnetic |energy |
generated |in |the |ignition |exciter |is |prevented |by |the |_________ |in |the |exciter |unit |filter |- |
CORRECT |ANSWER✔✔-inductor
,the |vibrator |in |an |ignition |exciter |changes |DC |into |___________ |- |CORRECT |ANSWER✔✔-
pulsating |DC
the |electrons |that |flow |across |the |gap |in |the |igniter |are |those |that |have |been |stored |in |the |
_______________________ |capacitors |- |CORRECT |ANSWER✔✔-storage |and |trigger
energy |that |remains |stored |in |the |capacitors |when |the |ignition |system |is |shut |down |is |bled |off
|through |the |________________________ |resistors |- |CORRECT |ANSWER✔✔-safety |and |
bleeder
the |high |voltage |AC |exciter |uses |a |__________________ |circuit |to |increase |the |voltage |from |
the |transformer |- |CORRECT |ANSWER✔✔-voltage-doubler
two |basic |types |of |turbine |engine |igniters |are |- |CORRECT |ANSWER✔✔--spark |igniters
-glow |plug |igniters
shunted |gap |igniters |are |normally |used |in |_______ |voltage |systems |- |CORRECT |ANSWER✔✔-
low
after |removing |the |power |lead |from |an |exciter, |you |should |wait |for |a |specified |length |of |time |
before |removing |the |lead |from |the |igniter. |This |period |of |time |allows |the |energy |that |is |stored
|in |the |____________ |to |bleed |off |to |the |ground |- |CORRECT |ANSWER✔✔-capacitors
after |removing |the |lead |from |the |igniter, |ground |the |center |conductor |to |the |_________ |- |
CORRECT |ANSWER✔✔-engine
the |J-85 |engine |was |manufactured |by |- |CORRECT |ANSWER✔✔-General |electric
, the |J-85 |was |a |__________ |spool |engine |which |produces |approx. |2000 |lbs |of |thrust |w/o |the |
afterburner |depending |on |the |model |- |CORRECT |ANSWER✔✔-single
`the |J-85 |engine |was |built |with |an |afterburner. |the |afterburner |provided |a |boost |in |thrust |of |
approx |________% |increase |to |the |total |thrust |available |from |the |engine |- |CORRECT |
ANSWER✔✔-50 |percent
`the |j-85 |engine |produces |its |compression |by |using |- |CORRECT |ANSWER✔✔-a |series |of |
rotating |blades |and |stationary |blades |to |move |the |air |parallel |to |the |axis |of |engine
the |J85 |engine |was |installed |in |the |_________ |USAF |jet |trainer |aircraft. |It |was |the |first |trainer |
to |be |capable |of |supersonic |flight |and |is |still |in |use |as |a |jet |training |aircraft |- |CORRECT |
ANSWER✔✔-T-38
Describe |the |operating |principal |of |the |afterburner |used |on |the |J85 |engine |, |this |applies |to |all |
afterburners |- |CORRECT |ANSWER✔✔-raw |fuel, |the |amount |governed |by |the |afterburner |fuel |
control |is |sprayed |(EIGHT |spray |bars) |into |the |extended |exhaust |tube |attached |to |basic |engine,
|then |ignited |by |EIGHT |igniter |plugs |and |additionally |the |airflow |is |slowed |down |to |ensure |
better |mixing |as |it |is |then |exhausted |out |of |the |back |of |the |nozzle
the |cockpit |of |a |T38 |engine |will |have |a |N1 |and |N2 |gauges |to |monitor |the |operation |of |the |
engine |since |the |engine |is |a |two |spool |engine |having |both |a |low |pressure |compressor |and |a |
high |pressure |compressor |with |the |associated |low |pressure |turbines |and |high |pressure |
turbines |- |CORRECT |ANSWER✔✔-FALSE
the |T38 |engine |studied |in |the |lab |consist |of |_______ |compressor |stages |and |______ |turbine |
stages |- |CORRECT |ANSWER✔✔-8, |2
the |T38 |engine |studied |in |lab |is |designed |with |a |________________ |spool |- |CORRECT |
ANSWER✔✔-single |spool |consisting |of |one |compressor |with |a |two |stage |turbine
