Non-propulsion Auxiliary Equipment

Question 1

most modern steering gear units are driven by what type of unit?

Answer 1

electro hydraulic type

Question 2

the electro hydraulic steering unit consists of what two major parts?

Answer 2

the ram unit and a power unit

Question 3

what causes the ram to move on electro hydraulic steering unit?

Answer 3

oil pressure applied to one end of of the operating cylinder

Question 4

what will move along wit the ram unit?

Answer 4

the rudder

Question 5

the power unit consists of how many independent units?

Answer 5

two, one is online and the other in standby

Question 6

what protects the steering pump unit from over pressurization?

Answer 6

a relief valve

Question 7

in what case of a failure to both hydraulic pumps what is provided as backup pumping system?

Answer 7

a hand pump

Question 8

the trick wheel allows local control of what?

Answer 8

the rudder

Question 9

what three types of anchor windless will you find onboard ship?

Answer 9

electric, electrohydraulic and hand driven

Question 10

how many pumps normally drive one wildcat?

Answer 10

one

Question 11

hand driven windlasses are used on what type of vessels?

Answer 11

small ships where the anchor gear can be handles without excessive effort by operating personnel

Question 12

wen operating the anchor windlass care must be taken to inspect what frequently?

Answer 12

compression of brake linings and the clearance between the brake drum and band

Question 13

navy electro hydraulic winches are all classified as what type?

Answer 13

drum type

Question 14

the drum shaft on an electro hydraulic winch is normally driven by what?

Answer 14

hydraulic motor

Question 15

where band brakes are used on the winch drums what should be inspected frequently?

Answer 15

the friction linings

Question 16

what prevents slippage of the winch when in operation?

Answer 16

a locking device

Question 17

cranes are designed to withstand what percent of rated load at no speed?

Answer 17

150 percent

Question 18

all cranes must withstand a static load of what?

Answer 18

200 percent of rated load without damage or distortion

Question 19

king post bearing allows for what types of loads?

Answer 19

vertical or horizontal

Question 20

define the term boom when associated with a. shipboard crane?

Answer 20

a structural unit used to lift, transfer or support heavy weights

Question 21

the king post bearing is located where?

Answer 21

at the top of the kingpost

Question 22

modern aircraft carrier elevators are powered by what?

Answer 22

an electro hydraulic power unit

Question 23

what is the lifting capacity of an aircraft elevator?

Answer 23

79, 000 to 105, 000 pounds

Question 24

what medium is used along with oil pressure to power the aircraft elevator?

Answer 24

nitrogen

Question 25

movement of the balanced piston type valve to the off center position will cause the aircraft elevator to?

Answer 25

move upward

Question 26

what prevents overtravel of the aircraft elevator?

Answer 26

an electrical stopping device which limits the stroke of the ram

Question 27

classify the two types of conveyors commonly used aboard ship?

Answer 27

gravity and powered

Question 28

conveyors are usually what size?

Answer 28

18 inches wide but they can be 12 inches wide for use in restricted passageways

Question 29

powered conveyors are configured in what two ways?

Answer 29

vertically and horizontally

Question 30

steam-jacketed kettles operate at a maximum pressure of what?

Answer 30

45 psi

Question 31

what prevents steam-jacketed kettle over pressurization?

Answer 31

a relief valve set at 45 psi

Question 32

steam-jacketted kettles are made of what material?

Answer 32

corrosion resisting steel

Question 33

a steamer operates at what pressure?

Answer 33

5-7 psi

Question 34

dishwashing machines are classified into what three groups?

Answer 34

one, two or three machines

Question 35

which dishwashing machine is fully automatic?

Answer 35

three-tank machine

Question 36

the temperature of the wastewater must be maintained within what parameters?

Answer 36

140-160 degrees F.

Question 37

Bacteria in the water is maintained by what?

Answer 37

regulation of water temperature

Question 38

the hot water rinse is controlled by an automatic steam-mixing valve which regulates temperature to?

Answer 38

180-195 degrees F.

Question 39

what is used to descale a dishwasher?

Answer 39

orthophosphoric acid, 85 percent

Question 40

prevention of scale in dishwashing machines is essential for what two reasons?

Answer 40

excessive scale will clog pipes and drains; scale deposits provide a haven for harmful bacteria

Question 41

in order to calculate the required amount of descaling solution what must be known about the dishwashing machine?

Answer 41

capacity in gallons