T₁ - T₂ + Tc
T₁ + T₂ + Tc
(T₁ - T₂ + Tc)/2
(T₁ + T₂ + Tc)/2
D. (T₁ + T₂ + Tc)/2
Fine threads
Course threads
Coefficient of friction is greater than tangent of load angle
Hole for inserting split pin
4
6
8
10
0.124 - (0.684/T)
0.154 - (0.912/T)
0.175 - (0.841/T)
None of these
0.1 and 0.25
0.25 and 0.50
0.50 and 0.75
0.75 and 1
There is a thick film of lubricant between the journal and the bearing
There is a thin film of lubricant between the journal and the bearing
The lubricant is forced between the journal and the bearing, by external pressure
There is no lubricant between the journal and the bearing
Hot piercing
Extrusion
Cold peening
Cold heading
Heavy load
Loose belt
Driving pulley too small
Any one of the above
Tensile stress
Compressive stress
Direct shear stress
Torsional shear stress
Both the ends fixed
Both the ends hinged
One end fixed and the other end hinged
One end fixed and the other end free
80 kN/mm²
100 kN/mm²
110 kN/mm²
210 kN/mm²
Addendum
Dedendum
Clearance
Working depth
0.4 times
0.6 times
0.7 times
0.8 times
1-3 m/s
3-15 m/s
15-30 m/s
30-50 m/s
Low efficiency
High efficiency
High load lifting capacity
High mechanical advantage
5 mm
10 mm
15 mm
25 mm
Intersecting and the teeth are curved
Non-intersecting and nonparallel and the teeth are curved
Non-intersecting and non-parallel and the teeth are straight
None of the above
0.5 times
Equal to
2 times
Double
Finishing and polishing
Shotpeening
De-carburisation
Electroplating
When the maximum shear stress in a biaxial stress system reaches the shear stress at elastic limit in a simple tension test
When the maximum principal stress in a biaxial stress system reaches the elastic limit of the material in a simple tension test
When the strain energy per unit volume in a biaxial stress system reaches the strain energy at the elastic limit per unit volume as determined from a simple tension test
When the maximum principal strain in a biaxial stress system reaches the strain at the elastic limit as determined from a simple tension test
Increase the key length
Increase the key depth
Increase the key width
Decrease the key length
Helical spring
Conical spring
Flat spiral spring
Volute spring
Shoe brake
Band and block brake
Band brake
Internal expanding brake
Friction angle is less than helix angle
Friction angle is more than helix angle
Friction angle is equal to helix angle
Efficiency of screw is 100%
2
4
8
16
Tearing strength of plate (Pt)
Shearing strength of rivet (Ps)
Crushing strength of rivet (Pc)
Least value of Pt Ps and Pc
Bending moment only
Twisting moment only
Combined bending moment and twisting moments
Combined action of bending moment, twisting moment and axial thrust
p.d.σc
p.t.σc
n.d.t.σc
(p - d) t.σc
Leather
Rubber
Cotton duck
Balata gum
Addendum circle
Dedendum circle
Pitch circle
Clearance circle
Reducing
Increasing
Both A and B
None of these