Propulsion - Propeller-Engine Integration Online Exam Quiz
Propulsion - Propeller-Engine Integration GK Quiz. Question and Answers related to Propulsion - Propeller-Engine Integration. MCQ (Multiple Choice Questions with answers about Propulsion - Propeller-Engine Integration
A turboprop engine is designed to generate bhp of 2500. Estimate the appropriate weight of the engine based on statistical models.
Options
A : 893.84 lb.
B : 21kg
C : 4555lb
D : 321 slug
A turboprop engine is to be scaled from an existing engine. If scale factor is 0.85 then, what will be the value of diameter of our engine? Given actual diameter of selected existing engine is 8.56unit.
Options
A : 8.4 unit
B : 23
C : 0.89
D : 9.123
Find the ratio of weight to length of the turboprop engine which has bhp of 3000.
Options
A : 12.6
B : 60.12
C : 60.012
D : 60.1206
Helical tip speed is given by __
Options
A : Vtip 2 +V 2 ? ? ? ? ? ? ? ? ? ?
B : 2*?*d
C : CL*d
D : Drag*Lift
If a propeller is designed to have 200 Hp then find the appropriate diameter for the propeller. Consider 2 blades.
Options
A : 82.73 unit
B : 210
C : 34.56
D : 180
If propeller has static tip speed of 600 ft. per second then, find diameter of propeller. Given n = 1250rpm.
Options
A : 9.167
B : 19.8976
C : 23.96
D : 3.2876
Let's consider we need to design a propeller engine which has 3 blades. What will be the typical value of propeller diameter? Engine is expected to produce 400 Hp of power.
Options
A : 80.5 unit
B : 129
C : 128.94
D : 129.95
Propeller has diameter of 25 unit. What will be the static tip speed of the propeller? (Given n = 1200rpm.)
Options
A : 1570.8 unit
B : 3004.5
C : 2345.67 unit
D : 7643.23
Scaling factor of turboprop engine is 1.2. If, the actual length of an existing turboprop engine is 12 unit then, what will be the length of scaled engine?
Options
A : 23.68
B : 56.6
C : 12
D : 32
What is the old thumb rule to design a propeller?
Options
A : Keep it as long as possible
B : Keep it as short as possible
C : Keep it as short and wide as possible
D : Keep it as half of diameter always
Aerodynamic Coefficients more Online Exam Quiz
Propulsion - Jet-Engine Integration-2
Propulsion - Jet-Engine Integration-3
Propulsion - Jet-Engine Integration-4
Propulsion - Jet-Engine Thrust Considerations and Turbojet Installed Thrust
Propulsion - Piston-Engine and Turboprop Performance