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WorksheetsEMD Topic 2 Cotter and Knuckle
Total questions: 12
Worksheet time: 23mins
A cotter joint is used to transmit
axial tensile load only
axial compressive load only
combined axial and twisting loads
axial tensile or compressive loads
The taper on cotter varies from
1 in 15 to 1 in 10
1 in 24 to 1 in 20
1 in 32 to 1 in 24
1 in 48 to 1 in 24
The length of cotter is taken as ______ (where d= Diameter of the rod)
1.5 d
3 d
4 d
2.5 d
In a steam engine, the piston rod is usually connected to the crosshead by means of a
knuckle joint
cotter joint
universal joint
flange coupling
In a steam engine, the valve rod is connected to an eccentric by means of a
knuckle joint
cotter joint
universal joint
flange coupling
a cotter joint to connect two mild steel rods for a pull of 30 kN. The maximum permissible stresses are 55 MPa in tension ; 40 MPa in shear and 70 MPa in crushing.
Identify diameter of rod i.e. d=?
22
18
26
32
a cotter joint to connect two mild steel rods for a pull of 30 kN. The maximum permissible stresses are 55 MPa in tension ; 40 MPa in shear and 70 MPa in crushing.
Identify diameter of rod i.e.
22
27
36
32
Design a knuckle joint to connect two mild steel bars under a tensile load of 25 kN. The allowable
stresses are 65 MPa in tension, 50 MPa in shear and 83 MPa in crushing.
Identify d=
32
23
26
20
Design a knuckle joint to connect two mild steel bars under a tensile load of 25 kN. The allowable
stresses are 65 MPa in tension, 50 MPa in shear and 83 MPa in crushing.
Identify d1
32
23
26
20
Mean width of cotter is given by
a
d
c
b
Type Full Name
Type Roll Number
