571 UNREP Flashcards
What is the purpose of the drum band brake on winches?
a. To control the direction of rotation
b. To hold or control a load and prevent unspooling of the rope
c. To engage or disengage the winch drum from the drive system
d. To provide smooth, variable speed control
B
Which winches are equipped with a drum overload clutch to prevent excessive loading of wire rope connection points?
a. Saddle winches
b. Gypsy winches
c. Highline, spanwire, and E-STREAM hauling winches
d. Electric Hydraulic Winches
C
What is the purpose of Anti-slack devices (ASD) in the context of winches?
a. To prevent birdcaging of the wire rope when the winch is operating with no load
b. To control the direction of rotation
c. To engage or disengage the winch drum from the drive system
d. To provide smooth, variable speed control
A
What is the purpose of the ram tensioner described in Section 4.4?
a. To regulate the flow of hydraulic fluid
b. To maintain a constant tension range in the highline or spanwire
c. To control the sliding block movement
d. To provide power to the winch motor
B
What is the function of the flow control valve in the ram tensioner?
a. Regulates the flow of hydraulic fluid into the ram cylinder
b. Controls the sliding block movement
c. Prevents ejection of the ram piston
d. Provides power to the accumulator cylinder
A
Which component prevents the loss of hydraulic fluid in the ram tensioner system?
a. Accumulator
b. Flow control valve
c. Packing set and wiper ring
d. Drum band brake
C
What is the purpose of the sliding block drive system described in Section 4.5?
a. To regulate the tension in the highline or spanwire
b. To control the position and movement of the sliding block
c. To prevent ejection of the ram piston
d. To provide power to the winch motor
B
What function does the sliding padeye serve at the receiving station, as per Section 4.6?
a. Raises and lowers the padeye where the highline is attached
b. Controls the flow of hydraulic fluid in the ram tensioner
c. Prevents ejection of the ram piston
d. Regulates the tension in the sliding block drive system
A
How is the Bulkhead Mounted Sliding Padeye attached to the ship’s structure?
a. It is mounted in a vertical trunk
b. It is hinged from the carrier hangar bay overhead
c. It is secured at four mounting points on the ship’s structure
d. It is supported by back stays
C
What is the purpose of the ball screw assembly in the sliding padeye system?
a. To control position and slow down the carriage assembly
b. To provide vertical motion to the carriage assembly
c. To transmit power to the electric motor
d. To regulate the flow of hydraulic fluid
B
Which component provides the driving torque for the sliding padeye system?
a. Ball Screw Assembly
b. Brake System
c. Electric Motor
d. Carriage Assembly
C
What is the major difference between E-STREAM Control Stations and Navy Standard control stations, as described in Section 4.8?
a. E-STREAM Control Stations have manual control levers, whereas Navy Standard control stations use encoders.
b. E-STREAM Control Stations use a Master Control Console and LED-screened Master Power Panel, while Navy Standard control stations have individual machinery controls.
c. E-STREAM Control Stations have a different configuration whether installed port or starboard, while Navy Standard control stations have a fixed configuration.
d. E-STREAM Control Stations do not have indicator lights, whereas Navy Standard control stations have multiple indicator lights.
B
What does the control handle in the Navy Standard highline or spanwire winch master control booth transform the movement into?
a. Rotary motion
b. Linear motion
c. Push-pull movement
d. Trolley movement
A
What is the purpose of the locator switch in the E-STREAM Highline or Spanwire control?
a. To control winch speed and direction
b. To select single drum operation
c. To take or pass control to and from the master control and local control
d. To operate the trolley direction control handle
C
How are the Navy Standard hauling winches controlled during STREAM transfer operations?
a. Using the drum selector switch
b. Using the TROLLEY DIRECTION control handle
c. Using the SPEED control handle
d. Using the ARC Valve
B