Millwright - 2nd Year: Couplings Exam
Questions and Answers with Verified
Solutions | Latest Updated 2026
What is a shaft coupling? Power transmission components used to
connect
driving and driven shafts end to end
What are the 3 basic types of 1. Rigid
couplings? 2. Flexible
3. Special purpose
What types of union does a rigid Fixed union between two shafts
coupling provide?
Which coupling does not allow for Rigid coupling
any deviation in alignment
between
two shafts?
Which coupling has no provision Rigid coupling
for
end float?
What is the result when rigid Vibration problems and bearing, seal or
couplings are not accurately coupling
aligned? failure?
,Whatare the 5 types of rigid 1. Sleeve couplings
couplings? 2. Compression couplings
3. Ribbed couplings
4. Flange-face couplings
5. Threaded couplings
What speed and torque Low speed and low torque
applications
are sleeve couplings used for?
Describe a sleeve coupling. Heavy walled tubing of specific inside
diameter
with a keyway and set screws to tighten
the
coupling to the shaft
How is a sleeve coupling classified Sliding fit
under the ANSI system?
How does a compression coupling Tapered sleeves in tapered hubs clamp to
clamp to a shaft? the shaft
when they are drawn together
_______________________ Compression
couplings are often
used when the coupling must be
installed or removed often.
What load applications are Ligh to moderate loads
compression couplings used on?
, When using a compression same or different
coupling,
the two shaft can be
________________________
diameters.
What load and torque applications Heavy load and heavy torque applications
are ribbed coupling used for?
Describe a ribbed coupling? A coupling having two halves split parallel
to the
shafts axis and having a machined
keyways in both
shafts
What effect does over-tightening It can lead to splitting or cracking
the
cast iron couplings have?
True or false. With ribbed True
couplings,
one long key can be used with
shafts
of the same diameter.
On a ribbed coupling, how is the Through the keys
torque transmitted?
Questions and Answers with Verified
Solutions | Latest Updated 2026
What is a shaft coupling? Power transmission components used to
connect
driving and driven shafts end to end
What are the 3 basic types of 1. Rigid
couplings? 2. Flexible
3. Special purpose
What types of union does a rigid Fixed union between two shafts
coupling provide?
Which coupling does not allow for Rigid coupling
any deviation in alignment
between
two shafts?
Which coupling has no provision Rigid coupling
for
end float?
What is the result when rigid Vibration problems and bearing, seal or
couplings are not accurately coupling
aligned? failure?
,Whatare the 5 types of rigid 1. Sleeve couplings
couplings? 2. Compression couplings
3. Ribbed couplings
4. Flange-face couplings
5. Threaded couplings
What speed and torque Low speed and low torque
applications
are sleeve couplings used for?
Describe a sleeve coupling. Heavy walled tubing of specific inside
diameter
with a keyway and set screws to tighten
the
coupling to the shaft
How is a sleeve coupling classified Sliding fit
under the ANSI system?
How does a compression coupling Tapered sleeves in tapered hubs clamp to
clamp to a shaft? the shaft
when they are drawn together
_______________________ Compression
couplings are often
used when the coupling must be
installed or removed often.
What load applications are Ligh to moderate loads
compression couplings used on?
, When using a compression same or different
coupling,
the two shaft can be
________________________
diameters.
What load and torque applications Heavy load and heavy torque applications
are ribbed coupling used for?
Describe a ribbed coupling? A coupling having two halves split parallel
to the
shafts axis and having a machined
keyways in both
shafts
What effect does over-tightening It can lead to splitting or cracking
the
cast iron couplings have?
True or false. With ribbed True
couplings,
one long key can be used with
shafts
of the same diameter.
On a ribbed coupling, how is the Through the keys
torque transmitted?
