Description : What is the use of double seated valve ?
Last Answer : In double seated valves the upward and downward forces on the plug due to reduction of fluid pressure are nearly equalized. It is generally used on bigger size valves and high pressure systems. Actuator forces required are less i.e. A small size actuator.
Description : What is the use of link connected to the valve positioner ?
Last Answer : The link serves as the feed back to the value. Ant valve movement is sensed by this link. Sometimes due to line pressure changes on H.P. service the valve position may be changed, the ... this change and the positioner will produce an output which will operate the valve to the original position.
Description : What is the use of a valve positioner ?
Last Answer : The valve positioner is used for following reasons : 1. Quick Action control valve. 2. Valve hysteresis. 3. Valves used on viscous liquids. 4. Split Range. 5. Line pressure changes on valve. 6. Valve Bench set not standard. 7. Reversing valve operation.
Description : How will you select the control valve characteristics ?
Last Answer : The graphic display of flow various lift shows then the Desired or inherent characteristic is changed by variations pressure drop. This occurs as the process changes from condition where most of pressure drop takes ... the valve. b) The pressure drop across a valve should be as low as possible.
Description : How will you change the action of a control valve ?
Last Answer : 1. If the control valve is without bottom cap. The actual needs to be changed. 2. If bottom cap is provided. a) Disconnect the stem from the actuator stem. b) Separate the body from the bonnet. ... back the stem to the actuator stem. h) Fix back the bottom cap. i) Calibrate the valve.
Description : How will you change the valve characteristics with positioner ?
Last Answer : The positioner contains different types of came in it. selection of the proper cams in it.By selection of the proper cam the valve opening characteristics can be changed.
Description : What is a solenoid valve ? Where it is used ?
Last Answer : A solenoid is electrically operated valve. It consist of a solenoid ( coil ) in which a magnetic plunger moves which is connected to the plug and tends to open or close the value. There are two types ... : 1. Normally open 2. Normally closed USE : It is used for safety purpose.
Description : What are the different valve characteristic ?
Last Answer : The different types of valve characteristic are : 1. Linear 2. Equal Percentage 3. Quick Opening. 1.Linear: The valve opening to flow rate is a linear curve 2.Equal percentage: For ... At small opening the increments in flow rate is more. At higher opening the flow rate becomes steady.
Description : What is a cage valve ?
Last Answer : A cage valve uses a piston with piston ring seal attached to the single seated valve "plug". Here the hydrostatic forces acting on the top or the piston or below the valve plug tend to cancel out. The seat ring is clamped in by a cage. Cage valves are generally used for noise reduction.
Description : How will you work on a control valve while it is line ?
Last Answer : While the control valve is in line or in service, it has to be by passed and secondly the line to be depressurized and drained.
Description : What is the use of Angle valves ?
Last Answer : Angle valves are used where very high pressure drops are required and under very severe conditions. Where the conventional type of valve would be damaged by erosion.
Description : What is the use of booster relays ?
Last Answer : Booster relays are essentially air load, self contained pressure regulators. They are classified into three broad groups : 1. Volume Boosters : These are used to multiply the available volume of ... 3. Reversing Relays : This produces a decreasing output signal for an increasing input signal.
Description : What is the use of three way valves ?
Last Answer : Three way control valves are only used on special systems, where a dividing or mixture of flows according to a controlled ratio is required.
Description : What is the use of butterfly valves ?
Last Answer : Butterfly valves are used only in systems where a small pressure drop across the valve is allowed. The butterfly is fully open when the disc rotates by 90. A drawback of this valve is that even a very small angular displacement produces a big change in flow.
Description : What types of bonnets would you use of high temp. and very low temp. ?
Last Answer : High temperature: Bonnets are provided with radiation fins to prevent glad packing from getting damaged. On very low temperature: Extended bonnets are used to prevent gland packing from getting freezed
Description : What are the advantages of Camflex valves ?
Last Answer : Camflex valves are intermediates between globe valve and butterfly valve. The plug rotates 60' for full opening. Advantages: 1. Actuator forces required are very less. 2.Extended bonnet and hence can be used ... on high temp. and very low Temperature. 3. Variations in flow. 4. Light weight.
Description : What are the different types of plugs ?
Last Answer : The different types of plugs are generally used are : ( 1 ) V. port plug ( 2 ) Contoured plug V-port plug: Ported plug are generally used on double seated valves. This is because ... balance area. Contoured plug: Contoured plugs are generally used on single seated valve with small trim sizes.
Description : When can a by pass be not used on a positioner ?
Last Answer : A by pass on a positioner cannot be used when : 1. Split Range operation. 2. Reverse Acting Positioner. 3. Valve bench set not standard.
Description : What are the different types of control valves ?
Last Answer : The commonly used control valves can be divided as follows. 1. Depending on Action. 2. Depending on the Body. 1. Depending on action: Depending on action there are two types of control valves, (1) ... valves single or double seated. 2. Angle valves. 3. Butterfly valves. 4. Three way valves.
Description : What is a control valves ?
Last Answer : A control valve is the final control element, which directly changes the valve of the manipulated variable by changing the rate of flow of control agent. A control valve consists of an operator and valve body. ... 3 psi on the diaphragm the value is closed and 15 psi air signal it in fully open.
Description : What Is The Use Of Single Seated Valve?
Last Answer : The single seated valve is used on smaller sizes where an absolute shut off is required. The use of single seated valve is limited by pressure drop across the valve in the closed or almost closed position.
Description : What Is The Use Of Double Seated Valve?
Last Answer : In double seated valves the upward and downward forces on the plug due to reduction of fluid pressure are nearly equalized. It is generally used on bigger size valves and high pressure systems. Actuator forces required are less.
Description : What is metal seated lubricated plug valve?
Last Answer : Answer: A plug valve with no plastic material, where grease is applied to contacting surfaces for easy operation.
Description : What method or formula could I use to find my seated pulse rate?
Last Answer : Simply put your two fingers to the side of your neck. You will be able to count your pulse rate and that should give you your answer. My sources were Ask.com.
Description : What is the difference between burning the flag and staying seated during the American anthem?
Last Answer : answer:If you ask me, sitting down during an anthem, even if it's not of your country's, is impolite and bad mannered. Standing is a sign of basic respect for your or someone else's country. ... 's culture and nation. You know who burns flags? Right wing apes. It is done deliberately to insult.
Description : Who is the woman in taupe with the monstrous tentacled hat seated directly behind Queen Elizabeth (who is wearing yellow) during the wedding ceremony?
Last Answer : Princess Beatrice of York.
Description : Can anyone find a picture of a clown seated resting around a beach ball with all his limbs surrounding it?
Last Answer : . . . whatever you do don’t search Deviant Art for “clown ball”. . . It might turn your childhood memories into nightmares. literally almost vomited a little. fuck deviant art!
Description : Should Senator-elect Scott Brown of Massachusettes be seated and allowed to vote on the Healthcare Proposal?
Last Answer : Let me first say that I am socially liberal, from Massachusetts, and voted for Coakley. That being said, Brown was democratically elected, in Massachusetts of all places. There is no reason why he should not be allowed to vote on the proposal.
Description : So, my husband likes to try new stuff, we've seen somethings like parachutes sometimes in the sky, but the ones that people can control, like if they're seated or something, help please!
Last Answer : Hang-gliding? What a good place this would be to learn english.
Description : Should Roland Burris be seated?
Last Answer : I don’t think so. I know absolutely nothing about him, but the fact that Blago named him, in direct opposition to his state’s wishes, seems to give him an unneccessary mountian to climb.
Description : A husband and wife are seated facing each other with a barrier between them. Each one takes turns communicating with the other, each speaking only two words at a time. After each two-word message is ... or frustrated with the person who shouted the four-word phrase. What is going on here? -Riddles
Last Answer : The husband and wife are playing the old game of BATTLESHIP. The two-word communications consist of a letter and a number for the coordinates of where the ships are hidden, and the one-word responses are ... ' or 'Miss'. The final four word phrase which ends the game is, 'You Sank My Battleship!
Description : There are 10 persons who are to be seated around a circular table. Find the probability that two particular persons will always sit together. -Maths 9th
Last Answer : Total number of ways in which 10 person can sit around a circular table = 9! (∵ We shall keep one place fixed and the rest of the 9 places will be filled in (9 8 7 6 5 4 3 2 1) ways asthere is ... probability = \(rac{2 imes8!}{9!}\) = \(rac{2 imes8!}{9 imes8!}\) = \(rac{2}{9}.\)
Description : 6 boys and 6 girls are seated in a row. Probability that all the boys sit together is -Maths 9th
Last Answer : (d) \(rac{1}{132}\)Let S be the sample space for arranging 6 boys and 6 girls in a row. Then, n(S) = 12! If all 6 boys are to sit together, then consider the 6 boys as one entity. Now the ... ) = \(rac{7 imes6 imes5 imes4 imes3 imes2}{12 imes11 imes10 imes9 imes8 imes7}\) = \(rac{1}{132}\).
Description : A committee of 11 members sit at a round table. In how many ways can they be seated if the “President” and the “Secretary” choose to sit together. -Maths 9th
Last Answer : ∴ Required number of ways of seating = 9!
Description : In how many ways can 6 gentlemen and 3 ladies be seated round a table so that every gentleman may have a lady by his side? -Maths 9th
Last Answer : If each gentleman has to have a lady by his side, the seating arrangement can be done as shown below: This can be done in 5! (Gentlemen) × 3! (Ladies) = 720 ways.
Description : Eighteen quests have to be seated, half on each side of a long table. Four particular guests desire to sit on one particular side and -Maths 9th
Last Answer : Since four particular guests want to sit on particular side and three others on the other side. So, we are left with 11 guests out of which we choose 5 for side A in ways and remaining 6 for ... of the table can be arranged among themselves in 9! Ways. Hence, the total number of arrangements =
Description : In how many ways can teacher seat 5 girls and 3 boys in a row of 8 seats if a boy must be seated in the first seat and a girl in the last seat?
Last Answer : Feel Free to Answer
Description : What word means to be seated?
Last Answer : Perhaps "sitting".
Description : What is the typical height of a bar table and how many people can be seated around them?
Last Answer : Bar tables are typically 40'"-42" in height, with the stools being around 28"-30". The amount of people that can be seated around them varies, but it is typically 3 or 4.
Description : How can I find out what is my seated pulse rate?
Last Answer : You can find out your seated pulse rate by placing your two fingers not your thumb onto the carotid artery in your neck.You will feel a pulse under your fingers count the beats for a full minute.
Description : In order to avoid hip dislocation after replacement surgery, the nurse teaches the patient which of the following guidelines? a) Never cross the affected leg when seated. Crossing the affected leg may result ... a chair. The patient should be taught to avoid bending forward when seated in a chair.
Last Answer : a) Never cross the affected leg when seated. Crossing the affected leg may result in dislocation of the hip joint after total hip replacement.
Description : Eight persons P, Q, R, S, W, X, Y and Z in which 4 females are facing towards and 4 males facing away from the center. Males and females are seated alternately. I. X is male, W position is 3rd to the right of X ... . Which of the following is correct for neighbors? a) X, W b) R, X c) S, W d) P, S
Last Answer : Ans: option (d)
Description : Eight persons P, Q, R, S, W, X, Y and Z in which 4 females are facing towards and 4 males facing away from the center. Males and females are seated alternately. I. X is male, W position is 3rd to the right of X and ... R & Y are neighbors. Who is the only female in between X & R? a) Z b) P c) Y d) Q
Last Answer : Ans: option (c)
Description : Eight persons P, Q, R, S, W, X, Y and Z in which 4 females are facing towards and 4 males facing away from the center. Males and females are seated alternately. I. X is male, W position is 3rd to the right of X and exactly opposite to Q. ... a) S, Q, R, W b) P, Q, Y, W c) P, Q, R, W d) P, Q, R, S
Last Answer : b) P, Q, Y, W
Description : Eight persons P, Q, R, S, W, X, Y and Z in which 4 females are facing towards and 4 males facing away from the center. Males and females are seated alternately. I. X is male, W position is 3rd to the right of X ... as well R & Y are neighbors. 10. Who is exactly opposite to X? a) Z b) P c) S d) W
Last Answer : Ans: option (a)
Description : 65. While the nurse was checking the BP of the client, the wife was intently observing the nurse. The wife asks the nurse how to ensure accurate measurement of BP reading. Identify all the ... The client should rest quietly for 5 minutes before reading and can talk while BP is being checked
Last Answer : A. 1, 2, 3, and 4
Description : The removable partial denture requires relining what would be the most appropriate action, A. take a new impression by asking the patient to occlude on it B. Provide equal space (maybe it was ... gingival tissues. C. Make sure the framework and retainers are seated in place before taking impression
Last Answer : C. Make sure the framework and retainers are seated in place before taking impression