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

A. The oil film pressure is generated only by the rotation of the journal

Foundation purposes

Absorbing shock and vibrations

Transmission of power

Lifting and transportation of machines and cubicles

Helix angle

Pressure angle

Pitch lead angle

None of these

Longitudinal stress

Shear stress

Circumferential stress

None of these

There are four rivets per pitch length, all in double shear

There are four rivets per pitch length, out of which two are in single shear and two are in double shear

There are five rivets per pitch length, all in double shear

There are five rivets per pitch length, out of which four are in double shear and one is in single shear

Half the angle between two inclined faces in axial plane

The angle between the tangent to the pitch helix and the plane of rotation

The angle between the tangent to the pitch helix and an element of the cylinder

None of the above

The stress concentration in static loading is more serious in ductile materials and less serious in brittle materials

The stress concentration in static loading is more serious in brittle materials and less serious in ductile materials

The toughness of a material increases when it is heated

The shear stress in a beam varies from zero at the neutral surface and maximum at the outer fibres

l/2

l/√2

l

2 l

Major diameter

Minor diameter

Pitch diameter

Core diameter

Flanged

Threaded

Bell and spigot

Expansion

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

Thickness of plates to be riveted

Length of rivet

Diameter of head

Nominal diameter

Bending stress only

A combination of torsional shear stress and bending

Direct shear stress only

A combination of bending stress and direct shear stress

Elastic limit

Ultimate tensile strength

Young's modulus

Endurance limit

Leather

Rubber

Cotton duck

Balata gum

1

2

3

4

Directly proportional to (shaft diameter)²

Inversely proportional to (shaft diameter)²

Directly proportional to (shaft diameter)⁴

Inversely proportional to (shaft diameter)⁴

A member made of steel will generally be more rigid than a member of equal load carrying ability made of cast iron

A member made of cast iron will generally be more rigid than a member of equal load carrying ability made of steel

Both will be equally rigid

Which one is rigid will depend on several other factors

Equal to

Twice

Three times

Four times

Belt velocity

Initial belt tension

Arc of contact

All of the above

1 in 5

1 in 10

1 in 24

1 in 40

More

Less

Same

More or less depending on quantum of load

Increasing its shank diameter

Increasing its length

Decreasing its shank diameter

Decreasing its length

Determining brittleness

Protecting metal against corrosion

Protecting metal against wear and tear

Experimental stress analysis

_{xx} = 4 I_{yy}

_{xx} > 4 I_{yy}, the buckling will occur about Y-axis

_{xx} < 4 I_{yy}, the buckling will occur about X-axis

The most suitable section for the connecting rod is T-section

Static load

Dynamic load

Impact load

Completely reversed load

Heavier

Lighter

Moderate

None of these

Twice

Four times

Eight times

Sixteen times

Rectangular

Elliptical

I-section

Any one of these

Compression

Tension

Shear

Combined loads

Euler's formula

Rankine's formula

Johnson's straight line formula

Johnson's parabolic formula