Millwright Lubrication Exam Questions with Verified Answers Latest Update 2025 Already Passed
Which of the following is not a function of lubricating oil?
A) To carry away heat?
B) To carry away contaminants.
C) To increase friction.
D) To protect against corrosion. - Answers C) To increase friction.
Carb bearings can accommodate up to ____ degrees angular misalignment.
A) 4.5
B) 3.5
C) 2
D) 0.5 - Answers D) .5
Dowels are seated _____ the bolts are tightened to ensure accurate alignment of each half of the
housing bore.
A) before
B) after
C) either before or after - Answers A) before
When removing bearings from a tapered shaft no puller is required since there is a/an ____ component
to the hydraulic force due to the taper.
A) push back
B) friction
C) lubricant
D) axial - Answers A)push back
The film under a reciprocating load is very thin, strong and operates in ____ clearance than under a
stationary load.
A) a smaller
B) a larger
C) about the same - Answers A) smaller
, Which of the following best describes a matched set bearing?
A) Can not be used in random order
B) Can be installed back to back or face to face
C) It has a 30 or 32 degree contact angle
D) It can handle reversing thrust loads in either direction
E) It is designed for pure thrust load only - Answers A) Can not be used in random order
Which of the following best describes floating bushings?
A) They are made of a graphite material
B) They are made of porous material
C) It consists of an outer bushing containing a loosely fitted inner bushing
D) They are constructed of either nylon or Teflon
E) A device that relies in part on hydrostatic lubrication
F) A bushing that is the simplest and cheapest to manufacture
G) A device that is designed to hold a shaft axially in the required position - Answers C) It consists of an
outer bushing containing a loosely fitted inner bushing
What does the term "fit " refer to?
A) The range of permissible tightness
B) The range of permissible looseness
C) A reference to shaft size
D) A reference to shaft length
E) Both a and b
F) Both c and d - Answers E) Both a and b
Anti friction bearing concentrate the load in a _______ area.
A) large
B) small - Answers B) small
Which of the following is not a function of lubricating oil?
A) To carry away heat?
B) To carry away contaminants.
C) To increase friction.
D) To protect against corrosion. - Answers C) To increase friction.
Carb bearings can accommodate up to ____ degrees angular misalignment.
A) 4.5
B) 3.5
C) 2
D) 0.5 - Answers D) .5
Dowels are seated _____ the bolts are tightened to ensure accurate alignment of each half of the
housing bore.
A) before
B) after
C) either before or after - Answers A) before
When removing bearings from a tapered shaft no puller is required since there is a/an ____ component
to the hydraulic force due to the taper.
A) push back
B) friction
C) lubricant
D) axial - Answers A)push back
The film under a reciprocating load is very thin, strong and operates in ____ clearance than under a
stationary load.
A) a smaller
B) a larger
C) about the same - Answers A) smaller
, Which of the following best describes a matched set bearing?
A) Can not be used in random order
B) Can be installed back to back or face to face
C) It has a 30 or 32 degree contact angle
D) It can handle reversing thrust loads in either direction
E) It is designed for pure thrust load only - Answers A) Can not be used in random order
Which of the following best describes floating bushings?
A) They are made of a graphite material
B) They are made of porous material
C) It consists of an outer bushing containing a loosely fitted inner bushing
D) They are constructed of either nylon or Teflon
E) A device that relies in part on hydrostatic lubrication
F) A bushing that is the simplest and cheapest to manufacture
G) A device that is designed to hold a shaft axially in the required position - Answers C) It consists of an
outer bushing containing a loosely fitted inner bushing
What does the term "fit " refer to?
A) The range of permissible tightness
B) The range of permissible looseness
C) A reference to shaft size
D) A reference to shaft length
E) Both a and b
F) Both c and d - Answers E) Both a and b
Anti friction bearing concentrate the load in a _______ area.
A) large
B) small - Answers B) small
