WorksheetsReviewer Lesson No. 4 Control System Operations 11-07 LC
Total questions: 20
Worksheet time: 10mins
Name
Class
Date
1.
What type of system is typically used to control early aircraft and is still used in smaller aircraft?
a)
A. Hydraulic
b)
B. Mechanical
c)
C. Electrical
d)
D. Pneumatic
2.
Why are mechanical control systems still used in smaller aircraft?
a)
A. They are more advanced than hydraulic systems
b)
B. The forces on the controls are not too strong
c)
C. They are cheaper to manufacture
d)
D. They are lighter than other systems
3.
Which of the following components are NOT typically part of a mechanical control system?
a)
A. Cables
b)
B. Hydraulic actuators
c)
C. Bell cranks
d)
D. Push-pull tubes
4.
Why is the cable system the most widely used mechanical control system in aircraft?
a)
A. It is the lightest system
b)
B. It is the cheapest system to install
c)
C. Deflections of the structure to which it is attached do not affect its operation
d)
D. It requires the least maintenance
5.
What is the purpose of a fairlead in an aircraft?
a)
A. To adjust the tension of control cables
b)
B. To guide and support control cables, preventing them from rubbing against other parts of the aircraft structure
c)
C. To transmit motion between different components of the control system
d)
D. To limit the movement of control surfaces
6.
What do linkages do in an aircraft's control system?
a)
A. Guide and support control cables
b)
B. Connect and transfer motion between different components of the control system
c)
C. Absorb shocks and vibrations
d)
D. Prevent air pressure loss
7.
What is the function of adjustable stops in an aircraft's control system?
a)
A. To transmit motion between different components
b)
B. To limit the movement of control surfaces
c)
C. To guide and support control cables
d)
D. To absorb shocks and vibrations
8.
What is the role of snubbers in an aircraft?
a)
A. To guide control cables
b)
B. To connect control components
c)
C. To absorb shocks and vibrations
d)
D. To limit control surface movement
9.
What are gust locks used for in an aircraft?
a)
A. To guide control cables
b)
B. To absorb shocks and vibrations
c)
C. To limit external wind forces from damaging the control system while the aircraft is parked or tied down
d)
D. To maintain consistent cable tension
10.
What type of material are control cables typically made from?
a)
A. Aluminum
b)
B. Copper
c)
C. Flexible steel wires
d)
D. Nylon
11.
How do control cables function when under tension?
a)
A. They push the control surfaces
b)
B. They lose their strength
c)
C. They become flexible and weak
d)
D. They are very strong and can transmit pulling forces
12.
What happens to flexible control cables when they are pushed?
a)
A. They increase in strength
b)
B. They lose their strength
c)
C. They maintain their strength
d)
D. They become more rigid
13.
Why are multiple control cables often used in flight control systems?
a)
A. To increase redundancy
b)
B. To reduce the cost
c)
C. To simplify the design
d)
D. To provide strength in both pushing and pulling directions
14.
What is the purpose of cable labeling in large aircraft?
a)
A. To improve the aircraft's aerodynamics
b)
B. To help technicians identify the function of a cable or the unit requiring service operations
c)
C. To increase the cable's strength
d)
D. To reduce manufacturing costs
15.
What is the role of air seals in an aircraft's control system?
a)
A. To guide control cables
b)
B. To prevent cabin pressure loss
c)
C. To absorb shocks and vibrations
d)
D. To limit control surface movement
16.
Why are cable tension regulators used in certain airplanes?
a)
A. To increase the cable's strength
b)
B. To reduce the weight of the control system
c)
C. To maintain consistent tension across various conditions and prevent cable slackening
d)
D. To simplify the control system
17.
What are push-pull rods used for in an aircraft's control system?
a)
A. To transmit force in both directions
b)
B. To guide control cables
c)
C. To absorb shocks and vibrations
d)
D. To prevent cabin pressure loss
18.
How do the ends of push-pull rods typically attach?
a)
A. They are always fixed
b)
B. They are always adjustable
c)
C. They can be either fixed or adjustable
d)
D. They are welded in place
19.
What is the advantage of using a mechanical control system in aircraft?
a)
A. It is more advanced than hydraulic systems
b)
B. It is not affected by structural deflections
c)
C. It is cheaper than electrical systems
d)
D. It requires less maintenance
20.
Why might a pilot prefer a mechanical control system in a smaller aircraft?
a)
A. Mechanical systems are heavier
b)
B. The forces on the controls are not too strong, making manual operation feasible
c)
C. Mechanical systems are more complex
d)
D. Mechanical systems increase fuel efficiency
100 %
