16/09/2020

A machine with efficiency less than 50% is called as

• Irreversible

  machine

• reversible

  machine

• self

  locking machine

• Both B

  and C

A self

recording rain gauge

• records

  cloud cover

• records

  snow melt

• records

  rainfall intensity

• records

  cumulative depth of rainfall

Darcy's

law of flow through soil assumes that flow is

• steady

• laminar

• turbulent

• non uniform

The

moment of inertia of a rectangular section having breadth 2 cm and depth 1 cm

about its horizontal centroidal axis is

• 1/6

• 1/3

• 1/4

• 1/8

Tensile

strength of concrete is measured by

• Compression

  test

• Flexural test

• Slump test

• Kelly ball test

Water

reducers added in concrete

• Accelerators

• Air entraining agents

• Waterproofers

• plasticizers

If the

Young's modulus and Bulk modulus of a material are the same, then the

Poisson's ratio will be

• 0.25

• 0.33

• 0.4

• 0.5

When

the cross section of a rod is subjected to axial pushes, it is said to be

under

• tensile stress

• compressive stress

• shear stress

• volume stress

Which

of the following is a dimensionless quantity?

• specific volume

• specific weight

• specific gravity

• mass density

When a

rod is fixed at both ends and cooled, the type of stress developed in it will

be

• tensile stress

• compressive stress

• shear stress

• volume stress