1) The inlet door on a variable geometry intake is open at Report

idle speed

supersonic speeds

subsonic speeds

2) Anti-ice is recommended during Report

OAT +10^oCentigrade and visible moisture

OAT below 10^oCentigrade

thunderstorms

3) A pitot intake is divergent from front to rear because it Report

reduces ram compression

produces the maximum amount of ram compression

speeds up the air before it hits the compressor face

4) Anti icing of jet engine air inlets is commonly accomplished by Report

electrical heating elements located within the engine air inlet cowling

electrical heating elements inside the inlet guide vanes

engine bleed air ducted through the critical areas

5) The term 'Ram Ratio' in regard to air intakes is the relationship between Report

ambient pressure and ambient temperature

ambient temperature and compressor inlet temperature

ambient pressure and compressor inlet pressure

6) An increase in the Ram Ratio of an intake will Report

increase the temperature of the air

decrease the temperature of the air

have no effect upon the temperature of the air

7) As an aircraft approaches the transonic range, the aerodynamic efficiency of a Pitot type intake Report

increases due to the ram effect

decreases due to the shock wave

is not effected by forward speed

8) Inlet guide vanes are anti-iced with. Report

Rubber boots

Thermal blankets

Engine bleed air

9) Intake air turbulence Report

decreases the efficiency of the compressor

increases the efficiency of the compressor

has little effect on the efficiency of the compressor

10) What will be the effect of operating the intake anti-icing system of a gas turbine engine? Report

A decrease in power

Increased power at altitude

Increased power for take off

11) With an electrical ice protection system, the heating elements operate Report

continuously

part continuous - part intermittent

intermittently

12) The purpose of a bellmouth compressor inlet is to Report

provide an increased ram air effect at low airspeeds

maximize the aerodynamic efficiency of the inlet

provide an increased pressure drop in the inlet

13) The vortex dissipators installed on some turbine-powered aircraft is to prevent engine FOD, utilize Report

variable geometry inlet ducts

variable inlet guide vanes (IGV) and/or variable first stage fan blades

a stream of engine bleed air blown toward the ground ahead of the engine

14) Variable Ramp Intakes restrict airflow by Report

diverting the airflow around the intake

reducing the area of the intake

creating shock-waves in the intake

15) The inlet door of a variable geometry intake at supersonic speeds will be Report

closed

open

mid-Position

16) When operating an engine in icing conditions, care should be taken when the Report

temperature is below +10^oCentigrade with visible moisture

temperature is below 10^oCentigrade

temperature is below 0^oCentigrade

17) Anti-icing for a turboprop is achieved by Report

bleed air supply from compressor

electric bonded heater mats

hot oil supply from lubrication system

18) A divergent intake is Report

divergent from front to rear

convergent/divergent from front to rear

divergent/convergent from front to rear

19) What purpose does the nose cone serve on the(N1) fan on a high bypass engine? Report

Streamlined fairing

Reduce and straighten any turbulent air

Assist in diffusing airflow

20) A variable geometry intake at subsonic speeds Report

jet pipe area is increased

throat area is decreased

throat area is increased

EASA Questions Mod 15: Gas Turbine Engine Set 3: Engine Inlet

Set 1: Fundamentals

Set 2: Engine Performance

Set 3: Engine Inlet

Set 4: Eng. compressors

Set 5: Combustion Section

Set 6: Turbine Section

Set 7: Engine Exhaust

Set 8: Bearing and Seals

Set 9: Lubricants and Fuel

Set 10: Lubrication system

Set 11: Fuel Systems

Set 12: Air Systems

Set 13: Ignition Systems

Set 14: Engine Indication

Set 15: Power Augmentation

Set 16:Turboprop engines

Set 17: Turboshaft

Set 18: APU

Set 19:Powerplant Installation

Set 20: Fire Protection

Set 21:Engine Monitoring

Set 22: Engine Storage