Related Questions

The kinematic viscosity (in stoke) and the absolute/dynamic viscosity (in poise) are the same for __________ at room temperature.
A Air
B Water
C Mercury
D Alcohol
Which of the following has the highest viscosity of all (at a given temperature)?
A Naphtha
B Fuel oil
C Light diesel oil
D Petrol
The average marks of a student in 10 parers are 80. If the highest and the lowest scores are not considered, the average is 81 . If his highest score is 92. find the lowest.
A 55
B 60
C 62
D None of these
In case of parallel flow heat exchanger, the lowest temperature theoretically attainable by the hot fluid is __________ the outlet temperature of the cold fluid.
A Equal to
B More than
C Less than
D Either more or less than (depending upon the fluid)
The C.O.P for reverse Carnot refrigerator is 2. The ratio of lowest temperature to highest temperature will be
A twice
B half
C four times
D three times
Viscosity of water is about __________ times that of air at room temperature.
A 15
B 55
C 155
D 1050
Viscosity of gases __________ with increase in temperature.
A Increase very rapidly
B Increase slowly
C Decrease slowly
D Remain unaffected
Preheating temperature of medium viscosity furnace oil for better atomisation through burner is about __________ °C.
A 50
B 70
C 90
D 140
The viscosity of water at room temperature may be around one
A Centipoise
B Poise
C Stoke
D Both B & C
The dynamic viscosity of the liquid __________ with rise in temperature.
A Remain unaffected
B Increases
C Decreases
D None of these

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