Longitudinal stress
Hoop stress
Longitudinal and hoop stress
None of these
B. Hoop stress
Longitudinal stress
Hoop stress
Longitudinal and hoop stress
None of these
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
Zero
Less than one
Greater than one
None of these
One smaller nut is tightened over main nut and main nut tightened against smaller one by loosening, creating friction jamming
A slot is cut partly in middle of nut and then slot reduced by tightening a screw
A hard fibre or nylon cotter is recessed in the nut and becomes threaded as the nut is screwed on the bolt causing a tight grip
Through slots are made at top and a cotter pin is passed through these and a hole in the bolt, and cotter spitted and bent in reverse direction at other end
Brittle
Ductile
Elastic
Plastic
Spindles of bench vices
Railway carriage couplings
Feed mechanism of machine tools
Screw cutting lathes
Helical spring
Conical spring
Flat spiral spring
Volute spring
Larger than
Smaller than
Equal to
None of these
5°
8°
15°
25°
Provide cooling action
Lubricate the dies
Help removes chips
All of the above
Increasing the length of bar
Decreasing the cross-sectional area of the bar
Decreasing the modulus of elasticity of the bar
All of the above
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
Acts when external load is applied
Becomes zero when external load is removed
Is independent of external loads
Is always harmful
Joining thick cylinders
Calculating stresses in thick cylinders
Pre-stressing thick cylinders
Increasing the life of thick cylinders
(6V/ π)1/2
(6V/ π)1/3
(6V/ π)2
(6V/ π)3
More than 50 %
Less than 50 %
Equal to 50 %
None of these
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
Outer diameter
Hole diameter
Thickness
Mean diameter
1 in 5
1 in 10
1 in 24
1 in 40
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
Both ends hinged
Both ends fixed
One end fixed and the other end hinged
One end fixed and the other end free
2000-3000 kg/m²
3000-4000 kg/cm²
4000-4500 kg/cm²
7500-10,000 kg/cm²
Pitch diameter
Inside diameter
Outside diameter
Height
Varies linearly
Is uniform throughout
Varies exponentially, being more near the torque-input end
Varies exponentially, being less near the torque-input end
F/bh
3F/2bh
2F/bh
4F/bh
Tensile strength
Compressive strength
Shear strength
Bending strength
Working depth
Clearance
Backlash
Face width
d/2
d/3
3d/4
d/4
One-fourth
One-third
One-half
Double
Direction of twist of wires in strands is opposite to the direction of twist of strands
Direction of twist of wires and strands are same
Wires in two adjacent strands are twisted in opposite direction
Wires are not twisted