MACHINIST MATE TEST
(QUESTIONS BANK) 521
QUESTIONS WITH COMPLETE
SOLUTIONS 2025....
district
, Axial flow >5%
Don't know?
2 of 518
Term
What is the required reduction gear tooth contact for an SSTG with
helical gears?
Give this one a try later!
12 to 20 Labyrinth packing
80% of fave width Every 5 years
Don't know?
3 of 518
Term
What nozzle diaphragm has the nozzle extending around the entire
circle of the blades?
Give this one a try later!
, Full admission Labyrinth packing
Wearing rings Shaft sleeves
Don't know?
4 of 518
Term
If ignition fails to occur within two or three seconds, what action
must be taken?
Give this one a try later!
Shot burner fuel oil manifold Low DFT level
valve safety shit off device and Low water in boiler
investigate cause Improper deaeration of feedwater
When steam drum pressure is 100 to
200 psi below lower valve settings
Six hours with zero loss of pressure
or 75% or working pressure,
whichever is higher
Don't know?
, 5 of 518
Term
Idle force draft blower
Give this one a try later!
Must be locked shut Every 12 months
Welder, brazer, and NDT
Constant speed
qualifications
Don't know?
6 of 518
Term
Propellers that have been in operation for more than five years must
be inspected by what technique?
Give this one a try later!
Liquid penetrate +/- .02 EPM
90% copper 10% nickel Ahead full speed
Don't know?
(QUESTIONS BANK) 521
QUESTIONS WITH COMPLETE
SOLUTIONS 2025....
district
, Axial flow >5%
Don't know?
2 of 518
Term
What is the required reduction gear tooth contact for an SSTG with
helical gears?
Give this one a try later!
12 to 20 Labyrinth packing
80% of fave width Every 5 years
Don't know?
3 of 518
Term
What nozzle diaphragm has the nozzle extending around the entire
circle of the blades?
Give this one a try later!
, Full admission Labyrinth packing
Wearing rings Shaft sleeves
Don't know?
4 of 518
Term
If ignition fails to occur within two or three seconds, what action
must be taken?
Give this one a try later!
Shot burner fuel oil manifold Low DFT level
valve safety shit off device and Low water in boiler
investigate cause Improper deaeration of feedwater
When steam drum pressure is 100 to
200 psi below lower valve settings
Six hours with zero loss of pressure
or 75% or working pressure,
whichever is higher
Don't know?
, 5 of 518
Term
Idle force draft blower
Give this one a try later!
Must be locked shut Every 12 months
Welder, brazer, and NDT
Constant speed
qualifications
Don't know?
6 of 518
Term
Propellers that have been in operation for more than five years must
be inspected by what technique?
Give this one a try later!
Liquid penetrate +/- .02 EPM
90% copper 10% nickel Ahead full speed
Don't know?
