(π/4) d² × τ × n

1.875 × (π/4) d² × τ × n

2 × (π/4) d² × τ × n

3 × (π/4) d² × τ × n

B. 1.875 × (π/4) d² × τ × n

Jam nut

Castle nut

Sawn nut

Ring nut

Initial tension

External load applied

Sum of the initial tension and external load applied

Initial tension or external load, whichever is greater

2/8

8/2

4/8

8/4

Surface of the top of the tooth

Surface of the tooth above the pitch surface

Surface of the tooth below the pitch surface

Width of the tooth measured along the pitch circle

0.124 - (0.684/T)

0.154 - (0.912/T)

0.175 - (0.841/T)

None of these

Butt weld

Fillet weld

Sleeve weld

Socket weld

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

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

_{c}

_{c}

_{c}

_{c}

1 in 5

1 in 10

1 in 24

1 in 40

d

1.25 d

1.5 d

1.75 d

For conveying steam

In water and sewage systems

In pressure lubrication systems on prime movers

All of the above

Guest's theory

Rankine's theory

St Venant's theory

Von Mises theory

Euler's formula

Rankine's formula

Johnson's straight line formula

Johnson's parabolic formula

Neutral surface

Upper surface

Lower surface

None of these

Helix angle

Pressure angle

Pitch lead angle

None of these

Metric

Square

Buttress

Acme

Low

Zero

High

Could be anything

Free from corrosion

Stronger in tension

Free from stress

Leak-proof

Brittle

Ductile

Elastic

Plastic

Shafts are arranged at right angles and rotate in one definite direction

Shafts are arranged parallel and rotate in the opposite directions

Shafts are arranged parallel and rotate in the same directions

Driven shaft is to be started or stopped whenever desired without interfering with the driving shaft

More

Less

Same

None of these

Material of belt

Material of pulley

Materials of belt and pulley

Belt velocity

Directly as load

Inversely as square of load

Inversely as cube of load

Inversely as fourth power of load

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

Lower critical temperature

Upper critical temperature

Recrystallisation temperature

None of these

Zero

Less than one

Greater than one

None of these

Addendum

Dedendum

Clearance

Working depth

Ductile materials

Brittle materials

Elastic materials

All of the above

Same time to reach earth

Times proportional to weight to reach earth

Times inversely proportional to weight to reach earth

None of the above