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Question No : 128. The hydraulic efficiency of an impulse turbine is maximum when velocity of wheel is _______ of the jet velocity, One-fourth. One-half. Three-fourth. Double. Question No : 129. The specific speed of turbine is defined as the speed of a unit. Of such …
Get PriceHydraulic machines MCQ Set 1. 1. The specific speed of a pump is defined as the speed of a unit. Of such a size that is delivers unit discharge at unit head. Of such a size that it delivers unit discharge at unit power. Of such a size that it required unit power per unit head. Of such a size that it produces unit horse power with unit head.
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Get PriceHydraulic Machines MCQ Questions and Answers Quiz. 11. In a reciprocating pump, air vessels are used to. 12. In a centrifugal pump casing, the flow of water leaving the impeller, is. 13. Pressure intensifier increases the pressure in proportion to.
Get PriceQuestion 6 of 20. 6. Question. 1 points. The thickness of a sharp crested weir is kept less than. 1. one-fourth of the height of water on the sill. 2. one-third of the height of water on the sill. 3. two-third of the height of water on the sill. 4. one-half of the height of water on the sill.
Get Price2021-8-18u2002·u2002A ________ is a cyclic water pump that derives its power from hydroelectric sources. by. a) Hydraulic crane. b) Hydraulic Ram. c) Hydraulic Accumulator. d) Hydraulic Presses. Categories Mechanical Engineering MCQs Tags Hydraulic Intensifier mcqs, Hydraulic Machines, Hydraulic Machines mcqs, Hydraulic Ram mcqs Leave a comment.
Get Price2021-8-3u2002·u20022. Define pump and state the purpose of the pump in hydraulic system & classify pumps. Answer: Definition of pump: The pump is a device that is used to pump fluid. A pump converts mechanical energy into hydraulic energy. purpose of pump: Mechanical energy can be supplied through an electric motor. A partial vacuum (low-pressure area) is created ...
Get Price2020-7-20u2002·u2002Unit 4: Centrifugal Pumps: Purpose: To lift the liquid to the required height. Pump: A hydraulic machine which converts mechanical energy of prime mover (Motors, I.C. Engine) into pressure energy Classification of Pumps Application: 1. Agriculture & Irrigation 2. Petroleum 3. Steam and diesel Power plant 4. Hydraulic control system 5.
Get Price2017-3-14u2002·u2002Hydraulic Machines Questions with Answers :-. 1. Reciprocating pumps are no more to be seen in industrial applications (in comparison to centrifugal pumps) because of. (e) all of the above. 2. In a centrifugal pump casing, the flow of water leaving the impeller, is. (e) none of the above. 3.
Get Pricea) Fluid power system. b) Hydraulic system. c) Pneumatic system. d) Hydraulic Pumps. Answer: d. Clarification: Pump is a mechanical device which gives energy to the liquid. The liquid can have energy in any of the forms such as Kinetic energy, Pressure energy and potential energy. The fluid Power system is a power transmission system in which ...
Get PriceQuestion 6 of 20. 6. Question. 1 points. The thickness of a sharp crested weir is kept less than. 1. one-fourth of the height of water on the sill. 2. one-third of the height of water on the sill. 3. two-third of the height of water on the sill. 4. one-half of the height of water on the sill.
Get Price2020-7-20u2002·u2002Unit 4: Centrifugal Pumps: Purpose: To lift the liquid to the required height. Pump: A hydraulic machine which converts mechanical energy of prime mover (Motors, I.C. Engine) into pressure energy Classification of Pumps Application: 1. Agriculture & Irrigation 2. Petroleum 3. Steam and diesel Power plant 4. Hydraulic control system 5.
Get Price2018-4-3u2002·u2002Hydraulic or fluid pump is a device which transfers energy from its mobile components to the fluid that passes through the pumping equipment. The energy added into the pump supplements the velocity and pressure of the fluid. The hydraulic pump components are all instrumental in ensuring that the device operates optimally and provides the energy ...
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Get PriceHydraulic Machines MCQ Questions and Answers Quiz. 11. In a reciprocating pump, air vessels are used to. 12. In a centrifugal pump casing, the flow of water leaving the impeller, is. 13. Pressure intensifier increases the pressure in proportion to.
Get Price2021-8-3u2002·u20022. Define pump and state the purpose of the pump in hydraulic system & classify pumps. Answer: Definition of pump: The pump is a device that is used to pump fluid. A pump converts mechanical energy into hydraulic energy. purpose of pump: Mechanical energy can be supplied through an electric motor. A partial vacuum (low-pressure area) is created ...
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Get Price2014-1-23u2002·u2002A pump produces flow. After a pump in a hydraulic circuit you will get a pressure from load restriction which loaded in the hydraulic system, we can limite and safe our system from the creating pressure the relif valve and we can control it by some preasure valves. Hydraulic pumps, in …
Get PriceThe emergency pump in the hydraulic system will draw hydraulic fluid: asked Nov 12, 2020 in Engineering by Sherrita. aerospace-and-mechanical-engineering _____ hand pump produces fluid flow and pressure on each stroke of the handle. asked Nov 12, 2020 in ... macro 5 final mcqs. 28 items by bilal nasir. managment. 26 items by rsvmarveeran.
Get Price2020-7-20u2002·u2002Unit 4: Centrifugal Pumps: Purpose: To lift the liquid to the required height. Pump: A hydraulic machine which converts mechanical energy of prime mover (Motors, I.C. Engine) into pressure energy Classification of Pumps Application: 1. Agriculture & Irrigation 2. Petroleum 3. Steam and diesel Power plant 4. Hydraulic control system 5.
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Get Price2014-1-23u2002·u2002A pump produces flow. After a pump in a hydraulic circuit you will get a pressure from load restriction which loaded in the hydraulic system, we can limite and safe our system from the creating pressure the relif valve and we can control it by some preasure valves. Hydraulic pumps, in modern technologies.
Get Price2021-8-3u2002·u20022. Define pump and state the purpose of the pump in hydraulic system & classify pumps. Answer: Definition of pump: The pump is a device that is used to pump fluid. A pump converts mechanical energy into hydraulic energy. purpose of pump: Mechanical energy can be supplied through an electric motor. A partial vacuum (low-pressure area) is created ...
Get Price2021-10-2u2002·u2002If when tested, the above pump had an actual flow of 90 liters/minute at 207 bar (3000 PSI), we can say the pump has a volumetric efficiency of 90% at 207 bar (90 100 x 100 = 90%). Its volumetric efficiency used most in the field to determine the condition of a hydraulic pump - based on its increase in internal leakage through wear or damage.
Get Price2021-9-30u2002·u2002The specific speed of a pump is defined as the speed of unit of such a size that it : A. Produces unit power with unit head available: B. Delivers unit discharge at unit head: C. Requires unit power to develop unit head: D. Delivers unit discharge at unit power. Answer» b. Delivers unit discharge at unit head
Get Price2021-10-3u2002·u2002Mechanical Engineering Mcqs. Mechanical Engineering Mcqs for Preparation of Job Test and interview, freshers, Students, competitive exams etc. Multiple choice questions here are on topics such as Machine Design, Theory of Machines, Hydraulic Machines etc. MECHANICAL ENGINEERING MCQS. 1.
Get Price2021-9-19u2002·u2002C) A hydraulic lock has developed in the valve bonnet between the valve disk and the packing gland. D) A hydraulic lock has developed under the valve disk. Question 2: A spring-loaded air-operated valve shown in a throttled position.
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Get PriceThe emergency pump in the hydraulic system will draw hydraulic fluid: asked Nov 12, 2020 in Engineering by Sherrita. aerospace-and-mechanical-engineering _____ hand pump produces fluid flow and pressure on each stroke of the handle. asked Nov 12, 2020 in ... macro 5 final mcqs. 28 items by bilal nasir. managment. 26 items by rsvmarveeran.
Get Price2021-8-3u2002·u20022. Define pump and state the purpose of the pump in hydraulic system & classify pumps. Answer: Definition of pump: The pump is a device that is used to pump fluid. A pump converts mechanical energy into hydraulic energy. purpose of pump: Mechanical energy can be supplied through an electric motor. A partial vacuum (low-pressure area) is created ...
Get Price2017-3-15u2002·u2002pump from cavitation is known as NPSH required (NPSHR). This is a characteristic of the pump design. 3.6 pumps - revised (table format) 44. Question bank for Energy Managers & Energy Auditors 14. Plant has two travel grade boilers of rated capacity 38 …
Get PriceHydraulic Machines MCQ Questions and Answers Quiz. 11. In a reciprocating pump, air vessels are used to. 12. In a centrifugal pump casing, the flow of water leaving the impeller, is. 13. Pressure intensifier increases the pressure in proportion to.
Get PriceCavitation in Centrifugal Pump: In centrifugal pumps, the cavitation may occur at the inlet of the impeller of the pump or at the suction side of the pumps, where the pressure is considerably reduced. Cavitation also occurs in reciprocating pumps if there is a high-velocity suction or discharge.
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Get Price1. The neutralization number of lube oil used in the machinery has exceeded its permissible range, therefore, it will be necessary to ______________. centrifuge the oil. add makeup oil. renew the entire oil supply. operate the machinery at reduced power. 2.
Get Price2021-8-18u2002·u2002A ________ is a cyclic water pump that derives its power from hydroelectric sources. by. a) Hydraulic crane. b) Hydraulic Ram. c) Hydraulic Accumulator. d) Hydraulic Presses. Categories Mechanical Engineering MCQs Tags Hydraulic Intensifier mcqs, Hydraulic Machines, Hydraulic Machines mcqs, Hydraulic Ram mcqs Leave a comment.
Get PriceHydraulic intensifier is used for increasing the: A. rate of velocity of liquid supply. B. rate of flow through delivery pipeline of a pump. C. intensity of pressure of the liquid. D. momentum rate through delivery pipe.
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Get PriceCentrifugal pumps, used to handle hot liquids, must have a minimum flow through them under all operating conditions. This flow serves to _____. a) prevent overheating and vapor bound conditions b) maintain the net positive suction head of the pump c) maintain hydraulic differential in the pump impeller passages d) keep the shaft glands cool
Get PriceD. of such a size that it produces unit horse power with unit head ... A. centrifugal pump B. mixed flow pump C. axial flow pump D. any one of the above ... PakMcqs.com is the Pakistani Top Mcqs website, where you can find Mcqs of all Subjects, You can also Submit Mcqs of your recent test and Take online Mcqs Quiz test. ...
Get Price1. The neutralization number of lube oil used in the machinery has exceeded its permissible range, therefore, it will be necessary to ______________. centrifuge the oil. add makeup oil. renew the entire oil supply. operate the machinery at reduced power. 2.
Get Price2017-8-4u2002·u2002LECTURE 12 TO 14 – HYDRAULIC ACTUATORS SELF EVALUATION QUESTIONS AND ANSWERS 1A pump supplies oil at 0.002 m3/s to a 50mm diameter double acting cylinder and a rod diameter is 20mm. If the load is 6000N both in extending and retracting, find a. Piston velocity during the extension stroke and retraction stroke b.
Get PriceCavitation in Centrifugal Pump: In centrifugal pumps, the cavitation may occur at the inlet of the impeller of the pump or at the suction side of the pumps, where the pressure is considerably reduced. Cavitation also occurs in reciprocating pumps if there is a high-velocity suction or discharge.
Get PriceHydraulic and Pneumatic MCQ 7 4th semester mechanical engineering . Mechanical Engineering Mechanical Engineering. 1.The Reynold's No is defined as. (a)The ratio of inertia force to viscous force. (b)The ratio of inertia force to Pressure Force. (c)The ratio of inertia force to Elastic force. (d)The ratio of viscous force to inertia force.
Get Price2021-9-30u2002·u2002The specific speed of a pump is defined as the speed of unit of such a size that it : A. Produces unit power with unit head available: B. Delivers unit discharge at unit head: C. Requires unit power to develop unit head: D. Delivers unit discharge at …
Get Price2015-6-4u2002·u2002A centrifugal pump running at 500 rpm and its maximum efficiency is delivering a head of 30 m at flow rate of 60 litre per minutes. If the rpm is changed to 1000, then the head H in metres and flow rate Qin litresper minute at maximum efficiency are estimated to …
Get Price2021-9-19u2002·u2002C) A hydraulic lock has developed in the valve bonnet between the valve disk and the packing gland. D) A hydraulic lock has developed under the valve disk. Question 2: A spring-loaded air-operated valve shown in a throttled position.
Get PriceCentrifugal pumps, used to handle hot liquids, must have a minimum flow through them under all operating conditions. This flow serves to _____. a) prevent overheating and vapor bound conditions b) maintain the net positive suction head of the pump c) maintain hydraulic differential in the pump impeller passages d) keep the shaft glands cool
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Get Price2011-1-13u2002·u2002HYDRAULIC CIRCUIT DESIGN AND ANALYSIS A Hydraulic circuit is a group of components such as pumps, actuators, and control valves so arranged that they will perform a useful task. When analyzing or designing a hydraulic circuit, the following three important considerations must be taken into account: 1. Safety of operation 2.
Get Price2016-2-23u2002·u2002Consider the following statements : Cavitation in hydraulic machines occurs at the 1. Exit of the pump 2. Entry of the pump 3. Exit of the turbine 4. Entry of the turbine Of these the correct statements are : 1) 1 and 2 2) 1 and 3 3) 2 and 4 4) 2 and 3 RPSC: Question Paper Page 10 of 24
Get PriceHydraulic lifts; The hydraulic lift is an elevator which is operated by fluid pressure generated by a suitable fluid. It is used to raise automobiles in service stations and garages. In a hydraulic lift, two pistons are separated by the space filled with a liquid. A piston of small cross-section A 1 …
Get PriceCavitation in Centrifugal Pump: In centrifugal pumps, the cavitation may occur at the inlet of the impeller of the pump or at the suction side of the pumps, where the pressure is considerably reduced. Cavitation also occurs in reciprocating pumps if there is a high-velocity suction or discharge.
Get Price2021-9-30u2002·u2002The specific speed of a pump is defined as the speed of unit of such a size that it : A. Produces unit power with unit head available: B. Delivers unit discharge at unit head: C. Requires unit power to develop unit head: D. Delivers unit discharge at …
Get Price2021-9-27u2002·u2002F or all the commitment of a mine's service team to the recommended best practice in pump management, someday, encountering cases of pump component wear and tear is inevitable – a matter of when and not if. And when it does occur, component wear inhibits pump performance. It is at that point where, timeously, mines may have to seriously consider retrofitting as a feasible option.
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Get Price2021-9-29u2002·u2002Specific speed. Specific speed is basically defined as the speed of a turbine which is identical in shape, geometrical dimensions, blade angles, gate opening etc., with the actual turbine but of such a size that it will produce unit power when working under unit head. Specific speed will be …
Get PriceThe emergency pump in the hydraulic system will draw hydraulic fluid: asked Nov 12, 2020 in Engineering by Sherrita. aerospace-and-mechanical-engineering _____ hand pump produces fluid flow and pressure on each stroke of the handle. asked Nov 12, 2020 in ... macro 5 final mcqs. 28 items by bilal nasir. managment. 26 items by rsvmarveeran.
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