F/bh
3F/2bh
2F/bh
4F/bh
B. 3F/2bh
Gerber relation
Soderberg relation
Goodman relation
None of these
(1 - sinφ)/ (1 + sinφ)
(1 + sinφ)/ (1 - sinφ)
(1 - sinφ)/ (1 + cosφ)
(1 + cosφ)/ (1 - sinφ)
Material and geometry of the part
Geometry of the part
Material of the part
None of these
The Oil film pressure is generated only by the rotation of the journal
The oil film is maintained by supplying oil under pressure
Do not require external supply of lubricant
Grease is used for lubrication
Effective length of column to least radius of gyration of the column
Width of column to depth of column
Maximum size of column to minimum size of column
Effective length of column to width of column
Longitudinal stress
Shear stress
Circumferential stress
None of these
Higher
Lower
Same
None of these
The effect of curvature of the cylinder wall is neglected
The tensile stresses are uniformly distributed over the section of the walls
The effect of the restraining action of the heads at the end of the pressure vessel is neglected
All of the above
40
50
70
100
5°
8°
15°
25°
ZN/p
p/ZN
Z/pN
N/Zp
18
16
20
22
√(Pmax / 2m)
√(Pmax / 3m)
√(Pmax / m)
√(3m /Pmax) Where m = mass of belt per metre (kg/m) Pmax = maximum permissible tension in belt (N)
Similar to small size tap bolts except that a greater variety of shapes of heads are available
Slotted for a screw driver and generally used with a nut
Used to prevent relative motion between parts
Similar to stud
Elastic limit to the working stress
Elastic limit to the yield point
Endurance limit to the working stress
Young's modulus to the ultimate tensile strength
Bolts and nuts
Studs
Headless taper bolts
None of these
Elastic limit
Strain
Factor of safety
Bulk modulus
Finishing and polishing
Shotpeening
De-carburisation
Electroplating
d.t.τu
πd.t.τu
π/4 × d².τu
π/4 × d² × t.τu
Short bearing
Long bearing
Medium bearing
Square bearing
Decreasing the cross-section area of bar
Increasing the cross-section area of bar
Remain unaffected with cross-section area
Would depend upon other factors
Prevent the rotation of load being lifted
Enhance the load carrying capacity of the jack
Reduce the effort needed for lifting the working load
Reduce the value of frictional torque
Similar to small size tap bolts except that a greater variety of shapes of heads are available
Slotted for a screw driver and generally used with a nut
Used to prevent relative motion between two parts
Similar to stud
Directly as load
Inversely as square of load
Inversely as cube of load
Inversely as fourth power of load
Has a head on one end and a nut fitted to the other
Has head at one end and other end fits into a tapped hole in the other part to be joined
Has both the ends threaded
Has pointed threads
0.75/ (0.75 + √v)
3/ (3 + v)
4.5/ (4.5 + v)
6/ (6 + v)
Uniform velocity
Simple harmonic motion
Uniform acceleration and retardation
Cycloidal motion
0.33
0.4
0.5
0.55
Basic size is 100 mm
Actual size is 100 mm
Difference between the actual size and basic size is 100 mm
None of the above
Angular bevel gears
Crown bevel gears
Internal bevel gears
Mitre gears