0.124 - (0.684/T)
0.154 - (0.912/T)
0.175 - (0.841/T)
None of these
A. 0.124 - (0.684/T)
Nil or lightest
Maximum
Average
Any one of the above
Low carbon steel
High carbon steel
Medium carbon steel
High speed steel
0.75/ (0.75 + √v)
3/ (3 + v)
4.5/ (4.5 + v)
6/ (6 + v)
Increase the key length
Increase the key depth
Increase the key width
Decrease the key length
7.5 kN
10.6 kN
15 kN
22.5 kN
Whose upper deviation is zero
Whose lower deviation is zero
Whose lower as well as upper deviations are zero
Does not exist
Ductile materials
Brittle materials
Equally serious in both cases
Depends on other factors
Woodruff key
Feather key
Flat saddle key
Hollow saddle key
Hydrostatic lubricated bearing
Hydrodynamic lubricated bearing
Boundary lubricated bearing
Zero film bearing
12
14
18
24
Metric
Buttress
Acme
Square
Ratio of coil diameter to wire diameter
Load required to produce unit deflection
Its capability of storing energy
Its ability to absorb shocks
Flanged
Threaded
Bell and spigot
Expansion
Minor diameter
Major diameter
Pitch diameter
None of these
Keeping the core diameter of threads equal to the diameter of unthreaded portion of the bolt
Keeping the core diameter smaller than the diameter of the unthreaded portion
Keeping the nominal diameter of threads equal to the diameter of unthreaded portion of the bolt
None of the above
Muff coupling
Compression coupling
Flange coupling
All of these
Normal pitch
Axial pitch
Diametral pitch
Module
Bottom of groove of the pulley
Sides and bottom of groove of the pulley
Anywhere in the groove of the pulley
Sides of groove of the pulley
Crimped
Honed
Flared
Bent
Right hand
Left hand
Both A and B
None of these
Sleeve bearings
Hydrodynamic bearings
Thin lubricated bearings
None of the above
Base circle
Pitch circle
Prime circle
Pitch curve
Both the ends fixed
Both the ends hinged
One end fixed and the other end hinged
One end fixed and the other end free
The pitch of the thread is 24 mm and depth is 2 mm
Cross-sectional area of the threads is 24 mm²
The nominal diameter of bolt is 24 mm and pitch is 2 mm
The effective diameter of bolt is 24 mm and there are 2 threads per cm
2/8
8/2
4/8
8/4
Have contact at the bottom most of the bearing
Move towards right of the bearing making no metal to metal contact
Move towards right of the bearing making the metal to metal contact
Move towards left of the bearing making metal to metal contact
Open belt drive transmits more power than crossed belt drive
Crossed belt drive transmits more power than open belt drive
Open and crossed belt drives transmit same power
Power transmission does not depend upon open and crossed types of constructions
Ratio of coil diameter to wire diameter
Load required to produce unit deflection
Its capability of storing energy
Concerned with strength of wire of spring
Provide cushioning effect
Provide bearing area
Absorb shocks and vibrations
Provide smooth surface in place of rough surface
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