MILLWRIGHT EXAM 2 2025/2026 QUESTIONS WITH 100%
CORRECT ANSWERS
What controls the servo valve in a hydraulic governor - Electrical controller
What is the purpose of a sleeve - To reduce shaft wear
Why are gate valves used on pump inlet and outlets - For isolation
What does misaligned bearing bores cause - Bent shaft an instrument wear
What is the purpose of return idlers - Support belt on return
What would cause low NPSHA? - Cavitation
What does CMM allow for? - Allows pro movement along three axis YXZ
Why is metal packing used? - High temperature liquid
What happens on centrifugal people pump when you Close discharge while operating ? - Maximum
pump slip
How much overlap on a bolt splice under 10 ply? - One bolt width
What is the purpose of counterweights - To offset the weight of the rod and pistons
What valve opens with a quarter of a turn - Ball valve
How is liquid moved in a gear? - Between teeth and casing
What is considered a rotating element - Sheave
, What pump requires timing gears? - Circumferential piston pump
When is the valve lash set? - TDC on compression stroke
What type of pump used for water pump and engine - Centrifugal
How do you control pressure fluctuations in a positive displacement pump - Pulsation damper
Where is most expansion in a turbine? - In the condenser low pressure or high pressure
What sheave contacts coolant directly? - Wet liner
What happens if you use a thicker gasket on a cylinder head? - Loss of power
Why are side idlers placed along conveyor? - Prevents belt from running off
What seals turbine blades? - Shroud and labyrinth
What type of horizontal conveyor is used for grade? - Trough
Where are the largest plates found on a reaction turbine? - ?????
What is blow by? - Combustion gases leaking into crankcase
What do you record before removing collar on a mechanical seal? - Collar position
What is minimum NPSHA requirements on a graph? - 10.5 or 5.5
What does variation an engine speed between minimum and maximum? - Deadband
What do you do to fix a mechanical seal and emergency? - Lapping
CORRECT ANSWERS
What controls the servo valve in a hydraulic governor - Electrical controller
What is the purpose of a sleeve - To reduce shaft wear
Why are gate valves used on pump inlet and outlets - For isolation
What does misaligned bearing bores cause - Bent shaft an instrument wear
What is the purpose of return idlers - Support belt on return
What would cause low NPSHA? - Cavitation
What does CMM allow for? - Allows pro movement along three axis YXZ
Why is metal packing used? - High temperature liquid
What happens on centrifugal people pump when you Close discharge while operating ? - Maximum
pump slip
How much overlap on a bolt splice under 10 ply? - One bolt width
What is the purpose of counterweights - To offset the weight of the rod and pistons
What valve opens with a quarter of a turn - Ball valve
How is liquid moved in a gear? - Between teeth and casing
What is considered a rotating element - Sheave
, What pump requires timing gears? - Circumferential piston pump
When is the valve lash set? - TDC on compression stroke
What type of pump used for water pump and engine - Centrifugal
How do you control pressure fluctuations in a positive displacement pump - Pulsation damper
Where is most expansion in a turbine? - In the condenser low pressure or high pressure
What sheave contacts coolant directly? - Wet liner
What happens if you use a thicker gasket on a cylinder head? - Loss of power
Why are side idlers placed along conveyor? - Prevents belt from running off
What seals turbine blades? - Shroud and labyrinth
What type of horizontal conveyor is used for grade? - Trough
Where are the largest plates found on a reaction turbine? - ?????
What is blow by? - Combustion gases leaking into crankcase
What do you record before removing collar on a mechanical seal? - Collar position
What is minimum NPSHA requirements on a graph? - 10.5 or 5.5
What does variation an engine speed between minimum and maximum? - Deadband
What do you do to fix a mechanical seal and emergency? - Lapping
