ENGINES CBT

Question 1

ENGINES AND THRUST RATING

Answer 1

GE WITH 13,000LBS OF THRUST

Question 2

WHAT IS ATTCS?

Answer 2

AUTOMATIC TAKEOFF THRUST CONTROL SYSTEM CONTROLLED BY THE FADEC
MUST BE ON FOR TAKEOFF

Question 3

WHAT IS N1? WHAT IS IT USED FOR?

Answer 3

SPEED OF THE FAN AND LOW PRESSURE SECTION

IT IS THE PRIMARY GAUGE USED TO SET THRUST

Question 4

WHAT DOES THE CYAN CHEVRON AND THE GREEN LINE ON N1 INDICATE?

Answer 4

CYAN CHEVRON INDICATES TOGA THRUST

GREEN LINE INDICATES MAX THRUST

Question 5

WHAT IS ITT? HOW IS MAXIMUM INDICATED?

Answer 5

INTERSTAGE TURBINE TEMPERATURE, MAX IS INDICATED BY A RED TICK MARK.

Question 6

WHAT IS MAX ITT FOR ENGINE START?

Answer 6

815 C

Question 7

WHAT IS N2?

Answer 7

SPEED OF THE HIGH PRESSURE SECTIONS

Question 8

HOW IS FUEL FLOW MEASURED?

Answer 8

POUNDS PER HOUR.

Question 9

WHAT ARE THE OIL PRESSURE AND TEMPERATURE INDICATIONS? WHAT IS THE PRESSURE LIMITATION FOR START?

Answer 9

GREEN - NORMAL
AMBER - CAUTION
RED - LIMIT HAS BEEN EXCEEDED
OIL PRESSURE MUST BE GREATER THAN 0 WITHIN 10 SECONDS OF START

Question 10

WHAT HAPPENS IF ENGINE VIBRATIONS ARE OUT OF TOLERANCE?

Answer 10

VIBRATION DISPLAY WILL TURN AMBER

Question 11

WHAT IS THE REQUIRED BLEED PRESSURE FOR A CROSSBLEED START?

Answer 11

AT LEAST 40 PSI

Question 12

DURING A CROSSBLEED START WHAT WILL HAPPEN IF THE THRUST LEVERS ARE MOVED TOO QUICKLY?

Answer 12

THE FADEC COULD SWAP FROM 10TH STAGE HP TO 6TH STAGE LP AUTOMATICALLY, WHICH COULD RESULT IN A HOT START.

Question 13

WHAT SHOULD THRUST BE LIMITED TO ON THE GROUND?

Answer 13

40%N1

Question 14

DO YOU NEED TO CHECK BLEED PRESSURE FOR APU STARTS?

Answer 14

NO

Question 15

WHAT ARE THE START ATTEMPTS LIMITATIONS ON THE GROUND? IN FLIGHT?

Answer 15

1&2 90 SECONDS ON, 10 SECONDS OFF
3&5 90 SECONDS ON, 5 MINUTES OFF

120 SECONDS IN FLIGHT

Question 16

WHAT DO ENGINE START/STOP SELECTORS INDICATE?

Answer 16

STOP: COMMANDS FADEC TO SHUTDOWN (THRUST LEVER MUST BE IN IDLE)
RUN: NORMAL OPERATION
START: INITIATES START PROCEDURE, FUEL INTRODUCED AT 20% N2, WITH ITT LESS THAN 120C (MUST BE SELECTED FOR 2 SEC.)

Question 17

WHAT DO IGNITION SELECTOR KNOBS INDICATE?

Answer 17

OFF: DEACTIVATES IGNITION AND INHIBITS FUEL FLOW ON THE GROUND (FADEC IGNORES OFF IN FLIGHT)
ON: FADEC TURNS ON IGNITION WHEN ENGINE START ATTMEPT (7% N2 ONE IGNITER)/AUTO RE-LIGHT (BOTH IGNITERS)
OVRD:ENABLES FADEC TO ACTIVATE BOTH IGNITERS

Question 18

HOW DO THE THRUST LEVERS FUNCTION?

Answer 18

DIGITALLY THROUGH THE FADEC

Question 19

HOW DO THE THRUST REVERSERS WORK? HOW DO WE USE THEM?

Answer 19

BY DIRECTING BYPASS AIR SIDEWAYS AND SLIGHTLY FORWARD.

BY PULLING THE TRIGGERS ON THE THRUST LEVERS AND MOVING THEM TO REVERSE.

Question 20

WHEN USING THE THRUST REVERSERS, WHAT INDICATION WILL YOU RECIEVE?

Answer 20

GREEN “REV” BELOW N1