What is the relation between temperature and viscosity for hydraulic oil? a. temperature decreases viscosity decreases at atmospheric pressure b. none of the listed c. temperature and viscosity vary linearly d. temperature increases viscosity decreases at atmospheric pressure

Q: Cavitation can be avoided by maintaining the pressure below the vapour pressure everywhere in the…

A: Cavitation occurs when the absolute pressure in the pumped water falls below its vapour pressure

Q: At the same depth, pressure against the bottom is greater in saltwater than in freshwater.  Select…

A: It is required to evaluate given statement

Q: A manometer is an accurate pressure measuring device that is used to measure low pressure in the…

A: Manometer used to measure pressure difference in u tube section but it cannot detect very low…

Q: In the space above the mercury column in a barometer tube, the gauge pressure of the vapour is (a)…

A:

Q: Which of the following statements are true? Bulk modulus can be negative. When AP increases for a…

A:

Q: In a valve, cavitation occurs due to

A: In this question, it is asked about cavitation and its occurrence position.

Q: PRESSURE GAUGE DEVICES? 2- Compare the value of the practical atmospheric pressure obtained and the…

A: 1) The different types of pressure gauge devices are:- Barometer Peizometer Inclined column…

Q: Cavitation will take place if the pressure of the following fluid at any point is Select one: O a.…

A: The vapor pressure of a liquid is defined as the pressure exerted by vapors of a liquid that are in…

Q: 3.) Oil with sp.gr. 0.95 flows at 200 lit/sec through a 500 m of 200-mm-diameter pipe (f = 0.0225).…

A:

Q: When fluid flows through an orifice, the greater pressure is in the (inlet/outlet) part of the…

A: Concept: Water flow through orifice 1.When the water flow through an orifice (smaller diameter) ,the…

Q: bulk modulus of elasticity of oil.

A: Given data; Oil in a hydraulic cylinder is compressed fromInitial volume V1=2 m3…

Q: 5) A compressible real fluid has viscosity. Select one: True False

A:

Q: Vacuum gauge fitted to a condenser reads 708 mm of mercury. Find the absolute pressure in the…

A: Given Data Pg=708 mmHg Vacuum Pb=760 mmHg

Q: Hydraulic oil is used in the Boyle's Law demonstration experiment Select one: a. True O b. False

A: TRUE

Q: Which of the following statements DOES NOT describe a fluid? a.lt stays in a constant shape upon…

A:

Q: As the temperature of the oil incresases _______________ of oil decreases. Viscosity Capillarity…

A:

Q: List three sources of error that would account for the differences between your values and the…

A: given; List three sources of error that would account for the differences between your values and…

Q: A pressure of 35 kpa is measured 4m below the surface of an unknown liquid. what is the specific…

A:

Q: Fluid of specific gravity 0.83 flows in a 238 mm diameter pipe. Find the critical velocity in m/s.…

A:

Q: The control volume means changing the volume of a fluid at constant pressure Ture False O

A: Given Statement :-  The control volume means changing the volume of a fluid at constant pressure.…

Q: What is the gage pressure?

A: Gage pressure is the method of measuring pneumatic pressure. Gage pressure is the pressure relative…

Q: The rate of increase of pressure in a vertically downward direction is equal to the specific weight…

A:

Q: When the pressure of fluid drops below the bubble-point pressure, then gas comes out of solution.…

A: Given :-  When the pressure of fluid drops below the bubble-point pressure, then gas comes out of…

Q: Write a brief procedure for measuring the vapor pressure of water

A:

Q: A vacuum gauge connected to a steam condenser shows that the pressure inside the condenser is 0.762…

A:

Q: What percentage of volume of a rectangular block having specific gravity 0.8 is submersed inside the…

A: Specific gravity of block, s.gb=0.8 Specific gravity of oil, s.go=0.9

Q: True or False. Frome Poiseuille's law, in order to maintain a constant flow rate, the pressure…

A: Flow rate: The rate of fluid flow in a unit time is known as flow rate. It is the product of the…

Q: If area of the cylinder increases,the pressure of the cylinder given from pump could be more.…

A: If area of the cylinder increases,the pressure of the cylinder given from pump remains same but the…

Q: Which of the following is/are not true? i. Specific gravity is sometimes termed as relative density.…

A: It is required to choose correct answer

Q: All hydraulic fluids will be compressed when extremely large pressure is applied. Select one: O True…

A: It fluid Power system it is considered that hydraulic fluid are incompressible.

Q: Demonstrate different types of factors affecting in viscosity of oil in the reservoir.

A: The viscosity of reservoir oil varies with pressure, temperature, and the amount of dissolved gas…

Q: Which of the following is correct?   Select one: a. absolute pressure = gauge pressure +…

A: Statement (a) is correct Absolute pressure = gauge pressure + atmospheric pressure

Q: Which temperature for lubricating oil will be lowest? 1) Flash point 3) Pour point 2) Fire point 4)…

A: Pour point A point for a liquid at which its flowing property changes and becomes semisolid in…

Q: 16. If oil has an absolute viscosity of 510 poises, what is its viscosity in the fps system?

A:

Q: Choose the correct answer Zero gauge pressure:        f. Both b and d       d. is the same as…

A: Given :-  Zero gauge pressure:        f. Both b and d       d. is the…

Q: The rate of change of viscosity with temperature is known as viscosity index and high viscosity…

A:

Q: What is the relation between temperature and viscosity for hydraulic oil? Select one: O a. as…

A: We have to determine What is the relation between temperature and viscosity for hydraulic oil

Q: The pressure at a point in a static fluid is not equal in all directions. Select one: True False

A: THE CORRECT OPTION IS FALSE.

Q: All of the following are advantages of synthetic oil over conventional oil EXCEPT: Select one: a.…

A: All of the following are advantages of synthetic oil over conventional oil EXCEPT Answer: a) cost…

Q: What is the relation between temperature and viscosity for hydraulic oil? Select one: O a. as…

A: As we increase the temperature the viscosity decrease at atmospheric pressure for hydraulic oil…

Q: 10 m3/min of free air is compressed to 8 bar gauge. What will be the volumetric flowrate of air at…

A: The initial volume of the air is V1=10 m3/min. The final pressure of the air is P2=8 bar. The…

Q: Which are not true about Capillarity? (a) Capillary rise increases as the surface tension increases…

A:

Q: Which of the following forms of viscosity is dimensionless? a. relative b. intrinsic c. dynamic…

A: Viscosity is the property of fluid under motion. It opposes the direction of motion of the fluid.

Q: The viscosity of castor oil decreases when we keep it in the refrigerator. Select one: O True O…

A: Viscosity like density is a temperature dependant property. Generally, the viscosity of liquids…

Q: In pressure measurement, 5mm of mercury is equivalent to water? mm of L_ ###) (example 14.3)

A: Given data: hHg=5 mm Need to determine the equivalent height of water.

Q: Choose correct answer: ercury does not wet the wall of the tube of thermometer. Select one: True…

A:

Q: Absolute Open Flow (AOF) Is the maximum flow rate into the wellbore when the BHP is zero; It’s a…

A: The absolute open flow (AOF) potential of a well is the rate at which the well would produce against…

Properties of Fluids

The term fluid represents a type of substance that can easily change its shape under any external pressure/force and can flow. Fluids can acquire any shape in which it is stored and can resist normal stresses but cannot resist shear stress in rest condition. Whenever external shear stress is applied to fluids, it starts to flow. The fluids may be liquid or gas. Example- water, air, etc.