单选题 How does( )water-tube boiler work?
A、Th
B、water passes throug
C、th
D、insid
E、o
F、th
G、tubes whil
H、th
单选题 What did they use to treat the water?
A、Filter.
B、Chemical.
C、Heating
D、Se
E、water.
单选题 Which type of scavenging methods is not mentioned?
A、Th
B、cross flow.
C、Th
D、loop.
E、Th
F、uniflow.
G、Th
H、puls
单选题 Which factor may influence overlap with two-stroke cycle engines?
13课
A、Engin
B、spee
C、B. Engin
D、design.
E、Engin
F、scal
G、D. Engin
H、weight.
单选题 Who is the first speaker?
A、Th
B、chie
C、engineer.
D、Th
E、secon
F、engineer.
G、Th
H、thir
单选题 How often is a pressure test carried out?
17课
A、Every six months.
B、Every fiv
C、months.
D、Every four months.
E、Every thre
F、months.
单选题 Who is in charge of the boiler?
A、Th
B、chie
C、engineer.
D、Th
E、thir
F、engineer.
G、Th
H、secon
单选题 What is the speed of turbocharger before cleaning the compressor?
A、About 20, 000 r/min.
B、Less than 20,000 r/min.
C、Mor
D、than 20, 000 r/min.
E、Equal to 20,000 r/min.