Aircraft Performance

• First Law

• Second Law

• Third Law

• None of the above

Momentum is mass times ____ in a propulsion device

• acceleration

• velocity

• distance

• force

Both valves closed - Fuel-air mixture is compressed by rising piston - Spart ignites mixture near the end of the stroke - Which stroke best represents this in a Reciprocating Engine

• Intake stroke

• Compression Stroke

• Power Stroke

• Exhaust Stroke

More power strokes per minutes ____ will be the ___ of the engine in terms of reciprocating engine.

• greater / power
• lesser / power

• greater / thrust

• lesser / thrust

The ____ is a technical figure of merit for an engine which reflects how efficiently the engine is burning fuel and converting in to ____

(a)  

Factors influencing the power of the reciprocating engine are ​ ​ ​ (a)   ​ (b)   ​ (c)  

• Mean effective pressure, RPM and Forward velocity

• Mean effective pressure, RPM and density

• Mean effective pressure, displacement, RPM and Forward velocity

• Mean effective pressure, RPM and Displacement

lb/hp.h is the SFC of the

• Turbojet Engine

• Turbofan Engine

• Turboprop Engine

• Reciprocating Engine

N/W.s is the SFC of the

• Turbojet Engine

• Turbofan Engine

• Turboprop Engine

• Reciprocating Engine

The variation of Power is (a)   with respect to the forward velocity for the Reciprocating Engine

• displacement

• RPM

• Mean effective pressure

• None of the above