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Correct Answer : Plane which can land and takeoff from the water
Explanation : Typical definition of a seaplane is as follows: plane which takes off from water and lands on water is known as a seaplane. Seaplanes are capable of landing and takeoff from water. Seaplanes are not necessarily same as other types of aircrafts.
Correct Answer : Option (C) : hydraulic pump space requirements
Explanation : A typical hydraulic system will affect conceptual design based on space requirements for pumps typically. Control surface are located at the wing or at tail section. Lift required at tail will be affected by which type of airfoil is used.
Correct Answer : Option (B) : simplified hydraulic system
Explaination : A typical hydraulic system is shown. A simplified hydraulic system can be observed in the diagram. As shown in the diagram a simplified hydraulic system includes actuators, feed lines etc. Fuel tank can be located in fuselage, in wing or in tail.
Correct Answer : Option (D) : generators, transformers, cables, etc
Explanation : A typical electrical system consists of generators, transformers, cables etc. It is used to provide electrical energy. Drag polar is graphical representation of drag. It is used to show relationship between drag and lift.