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9. High VI fluid exhibits: a) a small change in fluid viscosity as the temperatu

ID: 1867510 • Letter: 9

Question

9. High VI fluid exhibits: a) a small change in fluid viscosity as the temperature changes. b) a high change in fluid viscosity as the temperature changes. c) no change with the fluid viscosity as the temperature changes. d) an exponential change in fluid viscosity as the temperature changes. 10. In general, as the temperature increases a) b) c) d) e) f) the viscosity of liquids will decrease the viscosity of gases will decrease the viscosity of liquids will increase the viscosity of gases will increase Choices (a) & (d) Choices (b) & (c) 3. What is the gage pressure if the absolute pressure is 600 Pa, under local atmospheric pressure of 101.3 kPa a) 701.3 kPa b) + 498.7 kPa c) 101.9 kPa d) 100.7 kPa e) 101.9 kPa f)100.7 kPa 4. Consider a rock with mass of 1-kg suspended by a wire. The force exerts on the wire is: a) 9810 mN b) 9.81 x 103 KN c) 9.81 N d) All of the above 3

Explanation / Answer

9> high VI fluid indicates

A high VI indicates the fluid undergoes little viscosity change due to temperature fluctuations, while a low VI indicates a relatively large viscosity change.

(a) is correst option

10> As the temperature increases viscosity of liquid decreases while viscosity of gases increased .

so option (e) is correct option

3> Absolute pressure= atm pressure +gage pressure

so gage pressure=0.600-101.3= -100.7kpa

so option (f) is correct option

4> force=m*g=1*9.81=9.81N

so option (d) is correct option....after making the same unit