Engineering Systems and Engineering Casualty Control

Question 1

when maximum operability and reliability is needed in the engineering plant what configuration is used?

Answer 1

split plant operation

Question 2

what configuration method is used in port steaming and at other times such as when economy or maintenance considerations assume greater importance?

Answer 2

cross connected importance

Question 3

what is the shortest of all the major engineering piping systems aboard ship?

Answer 3

main steam

Question 4

any piping that carries superheated steam is considered what system?

Answer 4

main steam

Question 5

in a single furnace “D” type boiler, where is the steam cooled for auxiliary use?

Answer 5

the desuperheater

Question 6

what function does the steam escape piping serve?

Answer 6

provides an unobstructed passage for the escape of steam from boiler safety valves

Question 7

what system protects a turbine from air leaking in and steam leaking out?

Answer 7

gland sealing system

Question 8

pressure in the gland sealing steam system is maintained at what pressure range?

Answer 8

1/2 psig to 2 psig

Question 9

a valve hand wheel color coded dark green, would be used in what system?

Answer 9

saltwater system

Question 10

a purple valve hand wheel indicates what system usage?

Answer 10

JP-5 aviation fuel

Question 11

what is the valve hand wheel color code for the fuel oil system?

Answer 11

yellow

Question 12

what is the valve hand wheel color code for the lube oil system?

Answer 12

striped yellow/black

Question 13

feed water valve hand wheel are color coded in what manner?

Answer 13

light blue

Question 14

a dark Gary valve hand wheel indicates what system usage?

Answer 14

high pressure air

Question 15

what is the valve hand wheel color code for low pressure air systems?

Answer 15

tan

Question 16

nitrogen valve hand wheels are painted what color?

Answer 16

light gray

Question 17

in what publication will you find a comprehensive listing of all valves and piping color coding?

Answer 17

NSTM 505

Question 18

aboard most ships, gland sealing system is supplied from system?

Answer 18

auxiliary exhaust

Question 19

what type of feed system is used for boilers having an operating pressure at and above 600 psig?

Answer 19

pressure-closed

Question 20

the main condenser is maintained at what approximate vacuum?

Answer 20

25 to 28.5 inches of mercury

Question 21

what is the valve hand wheel color code for steam systems?

Answer 21

white

Question 22

what is the valve hand wheel color code for potable water systems?

Answer 22

dark blue