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WorksheetsAGTE FUNDAMENTALS
Total questions: 10
Worksheet time: 10mins
When gases pass through a convergent duct their:
A) velocity and temperature increase and their pressure decreases
B) their velocity increases and their temperature and pressure decrease
C) their velocity decreases and their temperature and pressure increase
D) they expand adiabatically
Select the correct order of best propulsive efficiency, from low to high airspeed.
A) High bypass ratio turbojet, Low bypass ratio turbojet, Pure turbojet, Turboprop
B) Low bypass ratio turbojet, Pure turbojet, Turboprop, High bypass ratio turbojet
C) Pure turbojet, Turboprop, High bypass ratio turbojet, Low bypass ratio turbojet
D) Turboprop, High bypass ratio turbojet, Low bypass ratio turbojet, Pure turbojet
The highest pressure in a gas turbine engine occurs:
A) between the compressor and the combustion chamber
B) in the combustion chamber
C) in the jet pipe
D) at the P1 probe
In a turbofan engine, the fan speed is controlled by:
A)
a reduction gear
B)
a wastegate
C) the turbine
D) varying the pitch
In a High Bypass Ratio engine:
A) all of the air goes through both the low and high pressure compressors
B) not all the air goes through the high pressure compressor
C) not all the air goes through the low pressure compressor
D) all the air goes through the high pressure compressor
Modular construction:
A) is only used on turboprop engines
B) cannot be used on high ratio engines
C) has a weight saving function
D) enables malfunctioning sections of the engine to be changed without changing the whole engine
The Bypass Ratio of an engine is the ratio of:
A) primary air to tertiary air
B) cold stream air to that flowing through the hot core of the engine
C) exhaust gas pressure to air intake pressure
D) primary air to secondary air
The Gas Turbine Engine uses the principle of:
A) Newton’s Third Law of motion
B) creating thrust equal to the weight of the aircraf
C) expelling air at the same speed as that of the aircraf
D) the fluid flywheel
The addition of heat in a combustion chamber allows a:
A) large expansion at a substantially constant pressure
B) large expansion at a constant volume
C) large expansion at a decreasing static pressure
D) minimum expansion at a constant volume
A Bypass Ratio of 5:1 means that:
A) 5 pounds of air is bypassed for every 10 pounds entering the engine intake
B) 5 pounds of goes through the HP compressor for every 10 pounds that enters the intake
C) 10 pounds of air goes through the bypass for every 5 pounds that enters the intake
D) 5 pounds of air is bypassed for every 1 pound that goes through the hot core of the engine
