Which of the following liquids is most viscous?

Which of the following forced convection heat transfer equation accounts for the liquid viscosity effect for viscous liquids?

A

Dittus-Boeltier equation

B

Sieder-Tate equation

C

Nusselt equation

D

None of these

Which liquid is the most viscous?

A

Water

B

Diesel

C

Milk

D

Oil

Which is the most suitable for cold viscous feed?

A

Forward feed

B

Backward feed

C

Mixed feed

D

Parallel feed

Unlike most liquids, which contract when they solidify, water expands by nine percentage when it freezes.

A

unlike most

B

solidify

C

by

D

percentage

Thermal conductivities of most of the liquids __________ with rise in temperature.

A

Increases

B

Decreases

C

Remains unchanged

D

May increase or decrease; depends on the liquid

The most volatile of the given liquids is

A

Ether

B

Liquid

C

Liquid NH₃

D

Liquid He

Dynamic viscosity of most of the liquids with rise in temperature

A

Increases

B

Decreases

C

Remain unaffected

D

Unpredictable

With increase in temperature, the thermal conductivity of most liquids

A

Increases

B

Decreases

C

Remains same

D

First increases upto a certain temperature and then becomes constant

Which of the following pump is generally used to pump highly viscous fluid?

A

Air lift pump

B

Centrifugal pump

C

Screw pump

D

Reciprocating pump

Which of the following oil is more viscous?

A

SAE 30

B

SAE 40

C

SAE 70

D

SAE 80

Which of the following liquids is most viscous?

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