100 top respiratory multiple choice questions and answers. Which one of the following could cause this condition? D) ball; ball. 1 and 4 b. only 1 c. 2 and 3 d. all the above View Answer / Hide Answer B) Observe local flow rate instrumentation. Answer 2 False Explanation: There is no concept of power factor improvement in DC Circuits because the phase angle (θ) between Current (I) and voltage (V) is 0 and the then power factor becomes Cos θ = 1. Question No. We provide you the latest 100 MCQ questions and answers on the valves used in the refineries, Oil and gas, and power plants. C) are more effective at throttling flow. A) Modulate open as necessary to maintain system pressure and/or temperature within normal limits. D) are more effective as pressure regulating valves. © Copyright 2016. It is higher pitched, louder, sharper and of short duration as compared to ‘lub’. B) The valve is fully open or nearly fully open. which will improve your skill. CW and CCW Operation of Motor from Same Push button, Servo Operated Manometer Objective Questions, Control Valve Volume Booster Working Principle, Basic Digital Building Blocks Objective Questions, Understanding High Integrity Pressure Protection Systems (HIPPS), What is FAT and SAT? Flow decreases with … A) cannot be shut remotely. 1. long length of pipe 2. friction 3. type of fluid 4. losses in valves and bends a. Consider a typical gate valve and a typical globe valve in the same water system application. A) The relief valves are installed to prevent unnecessary opening of the safety valves during a steam pressure transient. Diaphragm valve. Students can solve NCERT Class 12 Chemistry Electrochemistry MCQs Pdf with Answers … D) The first third of valve disk travel in the open direction will produce a smaller increase in flow rate than the last third of valve disk travel. 39. welcome to the mcqs instant anatomy. Answer multiple choice questions on pumps and pumping systems as followings: Installing larger diameter pipe in pumping system results in reduction in a. Static head b. Frictional head c. Both a and b d. None of the above What is the impact on flow and pressure when the impeller of a pump is trimmed? Which one of the following types of similarly sized valves requires the most manual valve stem rotation to move the valve from fully open to fully closed? C) ball; butterfly C) The valve stem packing gland was overtightened after the packing material was replaced. Pneumatic Systems - Concepts and Components - MCQs with Answ... Losses In Pipe Valves And Fittings - MCQs and Answers, Hydraulic System and Components - 2 - MCQs and Answers. Students can solve these Life Processes Class 10 MCQs Questions with Answers … 70 top physiology multiple choice questions and answers. Calculate area of a pipe if, flow rate is 20 l/min and flow velocity is 5 cm/s. A) produce a larger pressure decrease when fully open. D) closed; small. Knife gate valve. Consider a 6-inch globe valve and a 6-inch gate valve in the same water system application. MCQ Questions for Class 10 Science with Answers were prepared based on the latest exam pattern. Choose the correct answer: 38. ... Anal valves … ), The primary purpose of a pressure relief valve is to…. (D) reduced ejection phase. C) open; small Piston valve. Bony pelvis, peritoneal reflections and perineal fascia 1- Which of the following structures contribute to both of the pelvic inlet and outlet? Hussam Gujjar. A) Open fully D. From sides (d) mitral valve is opened. Accept Read More. General Science - Physics MCQs Physics Objective (Multiple Choice) General Knowledge & General Science Questions & Answers for SSC-CGL, UPPSC, UPSC, NDA, CDS and UPSC Civil Services Prelims Examinations. C) gate; gate Free PDF Download of CBSE Chemistry Multiple Choice Questions for Class 12 with Answers Chapter 3 Electrochemistry. It is one of the most important muscles of the body. C) The safety valves are installed to prevent unnecessary opening of the relief valves during a steam pressure transient. B) reduce system pressure. C) Removes pressure from the packing/stuffing box and is typically used when needed to isolate packing leakage. B) The relief valves are installed to prevent chattering of the safety valves during normal power operation. Find the sample 25 questions from the valves MCQ. Multi- port valve. A) The valve position limit switches were removed and were not reinstalled. A typical motor-operated valve (MOV) has just been opened from the main control room, and the breaker for the MOV has been opened. A plant operator has been directed to close the MOV locally for a surveillance test. Check valve. Code1) A and B. Code2) A, C & D. Code 3) B, C and D. Code 4) A, B & C . B) A relief valve gradually opens as pressure increases above the setpoint pressure whereas a safety valve pops open at the setpoint pressure. D) The valve disk has jammed against its backseat by the difference in the thermal contraction of the stem and the bonnet. B) There must be direct damage by trauma to allow organisms to "stick" to the valves C) A fibrin matrix supplies a protective surrounding to the bacteria, allowing for significant growth of the organism D) Prosthetic-valve IE develops as a result of bacteremia regardless of the bacterial concentration At the bottom . AmmarAbdullah. Engines - Ignition, Combustion and Combustion Chambers, Automobile Engineering- Emission & Control, Safety, Engine Performance & Testing, I.C. A) The valve was over-torqued in the closed direction during the packing gland adjustment. Diacrotic notch is due to: (A) sudden closure of AV valves. Float valve. Q5. (b): The “dup” sound is produced by the closure of the semilunar valves at the start of ventricular relaxation. We have Provided Life Processes Class 10 Science MCQs Questions with Answers to help … Which one of the following describes the position of the gate valve? Fluid Power in Machine Tools and Other Equipment - MCQs with... Accumulators and Intensifiers - MCQs with Answers. B) open; large a. If you search through the internet for Fluid Mechanics MCQ, you will find many websites offering Fluid Mechanics MCQ in a messy way. A control valve is most likely to experience cavitation when the valve is almost fully __________ because of a relatively __________ pressure drop across the valve seat. Be sure you respect it and eat well and exercise. TheFluidMechanic provides you with Fluid Mechanics MCQ … Which one of the following is not a generally accepted method for locally verifying that a valve is open? – 1000+ Multiple Choice Questions & Answers in C with explanations – Lots of MCQs with C code/programming snippet and its output – Every MCQ set focuses on a specific topic in C Language – C programming code compiled and tested on x86-32 bit Linux systems. More MCQ on HVDC. Infective endocarditis (IE) is defined as an infection of the endocardial surface of the heart, which may include one or more heart valves, the mural endocardium, or a septal defect. C) Move to 50 percent open Uploaded by. Answer and Explanation: 22. Remember, it is okay to treat yourself now and then, but a proper diet makes the heart that much healthier. Freon group of refrigerants are (A) Inflammable (B) … D) Control pressure in a system to maintain optimum operational conditions. B) globe; gate C. At the centre . D) The disk separated from the valve stem as a result of overtightening the packing gland. B) The first third of valve disk travel in the open direction will produce a greater increase in flow rate than the last third of valve disk travel. As compared to AC, a DC Line carries: More power; Less power; Same power; Correct answer: 1. D) Check valve. During a local inspection of a manually operated 12-inch gate valve, the valve stem is observed to extend outward from the valve handwheel by 1 inch. 6. A) The two halves of the valve disk have expanded and are jammed against the valve seats. 2. A) The valve may be in any position because it is a non-rising stem gate valve. A) Acts as a backup in case the primary seat leaks and is typically used when needed to prevent the primary seat from leaking excessively. The entire external valve stem is threaded, except for a 1-inch section that becomes smooth just before the valve stem enters the packing gland. B) the head loss from a throttled gate valve will result in an unacceptable reduction in system flow rate. A) globe; globe physiology 100 mcqs with answers byesms de. B) Butterfly valve B) larger; more D) Removes pressure from the packing/stuffing box and is typically used to isolate the stuffing box for valve repacking. C) The maintenance technician overtightened the packing gland, causing the stem to bind. When the valve was remotely opened and closed to verify operability, the measured valve stroke time in each direction was 15 seconds, which is shorter than normal for this valve. Which one of the following types of similarly sized valves in an operating water system produces the least frictional head loss when fully open? C) A hydraulic lock has developed in the valve bonnet between the valve disk and the packing gland. D. Special purpose 1. Multiple Choice Questions with Answers on Refrigeration and Air-Conditioning - Set 07. How will a typical motor-operated valve respond to a loss of electrical power to the valve actuator? 5. www.gtu-mcq.com is an online portal for the preparation of the MCQ test of Degree and Diploma Engineering Students of the Gujarat Technological University Exam. C) The first third of valve disk travel in the open direction will result in approximately one-third of full flow rate. Ventricular pressure is higher than the atrial pressure in all phases of the cardiac cycle except in: (A) isometric contraction phase. ... 20- 56 TOP Cables - Electrical Engineering Multiple Choice Questions and Answers _ MCQs Preparation for Engineering Competitive Exams. D) backflow through nonoperating components or flowpaths. Cavitation is a condition that occurs in liquid flow where the … How the valves are classified based on its method of operation? Try this amazing Valvular Disease quiz which has been attempted 1481 times by avid quiz takers. Which one of the following describes a major design consideration for installing both types of valves in the same system? We have provided Body Fluids and Circulation Class 11 Biology MCQs Questions with Answers … This website uses cookies to improve your experience. So power factor in DC Circuits is 1 and Only 1. Some webpages have lots of Multiple Choice Questions but with no model answers or maybe the answers are wrong. A) accumulation. B) The valve torque limit switches were misadjusted to open at twice their normal setpoints. 3. At the top . B) blowdown. Which one of the following describes the function and use of the backseat on a manual valve? Which one of the following is a difference between a typical relief valve and a typical safety valve? Engines - Carburetion, Mechanical & Electronic Injection System, Thermodynamics - Refrigeration, Psychrometry, Steam Generators, Automobile Engineering - Rear Axle Assembly, Front Axle & Steering System. The semilunar valves prevent blood from flowing backwards: A) into the atria B) into the ventricles C) into the brain D) into the liver . answers udiehl de. Where blind flange is used? LCC posses fixed DC current polarity. (Assume that each valve has a non-rising stem. MCQs 1.Each of the following result in left ventricular hypertrophy except: A. aortic stenosis B. systemic hypertension C. coarctation of the aorta ... D. aortic valve stenosis E. aortic valve insufficiency 4.When a person dies suddenly from a “heart attack”, the most likely event that led to the A) excessive stem leakage will result unless the gate valve is fully open or fully closed. Which one of the following describes the function of a safety valve? D) Turn the valve operator in the close direction and verify that some movement occurs. Answers are provided at the end of the questions. D) gate; globe, In a comparison between gate valves and globe valves in the same water system application, gate valves…. 4. Which one of the following is the type of valve used to control the direction of fluid flow through a system and prevent backflow? (B) atrial systole phase. Typically, the valve that requires the most linear disk travel from fully closed to fully open is the __________ valve; and the valve that produces the smallest pressure drop when fully open is the __________ valve. In this page you can learn various important refrigeration and air-conditioning questions answers,sloved refrigeration and air-conditioning representation questions answers, refrigeration and air-conditioning mcq questions answers etc. Valves are classified based on its … Its intracardiac effects include severe valvular insufficiency, which may lead to intractable congestive heart failure and … Click on the below button to launch the Quiz. D) maintain system mass. A) butterfly; ball A main steam system uses a combination of safety and relief valves for overpressure protection. In single acting hydraulic cylinders, the piston comes back to its original position … 2. In other words there is no reactive component in DC Circuits so the power factor is 1. D) Ball. 8. More power. Foot valve. What are the reasons causing pressure drop in hydraulic systems? We'll assume you're ok with this, but you can opt-out if you wish. Check the below NCERT MCQ Questions for Class 10 Science Chapter 6 Life Processes with Answers Pdf free download. A DC line carries more power as compared to an AC line. B) A hydraulic lock has developed under the valve disk. A control valve is most likely to experience cavitation when the valve is almost … Answer: Two valves with bleed ring in between with a bleed valve connected to the hole of bleed ring. (C) maximum ejection phase. A stop check valve is a type of check valve that…. 60. C) Sound a warning by lifting at a predetermined value slightly higher than operating pressure. Answer and Explanation A- Endocardium- The endocardium lines the lumen of the heart, forms the valves and continues as the intima of the great vessels entering and leaving the heart. Correct code. Line blind valve. Difference between them, Electrical & Instrumentation QC Interview Questions, Start Stop of one Motor from the same Push button PLC program, Remote Seal Transmitters Ranging Calculation. B) Swing check A) The handwheel will not turn, and the valve stem will not move. After an adjustment of the packing gland on a valve that had a minor packing leak, an operator attempts to operate the valve but finds the valve is stuck. Learn competitive and Technical Aptitude C programming mcq questions and answers on C Fundamentals with easy and logical explanations. B) can be used to prevent flow in both directions. B) Acts as a backup in case the primary seat leaks and is typically used during system isolation for personnel protection. 4. A) pump cavitation by keeping nonoperating systems filled. A gate valve is generally a poor choice for throttling fluid flow because…. A) Attempt to turn the valve operator in the open direction and verify that no movement occurs. B) require more force to open against large differential pressures. A) Gate valve A typical motor-operated valve has been returned to service following a complete maintenance overhaul of the valve and actuator. B) pump runout by providing a constant backpressure. Click on the below start button to get complete 100+ questions with answers. C) setpoint tolerance. Which … Flush bottom valve. In a comparison between ball valves and butterfly valves in the same water system application, the valve that would typically be more leak-tight when fully closed with a high differential pressure is the __________ valve; & the valve that typically results in the greater pressure decrease when fully open is the __________ valve. An operator attempts to close a fully-open upright manual gate valve to isolate a pump in a cooling water system that has been cooled down for maintenance. D) Close fully. A) expansion valve is at a higher elevation than condenser; B) there is a large pressure drop in the line connecting condenser to the expansion valve; C) the refrigeration effect is to be increased; D) the compressor work is to reduced . C) The handwheel will turn, and the valve stem will move toward the closed position because the clutch is automatically engaged when the handwheel is turned. C) contains both a gate valve disk and a check valve disk. Iti fitter multiple choice questions pipe and pipe fitting chapter important questions with answers For all types iti fitter competitive exams,iti job, iti fitter job, iti fitter govt job, Pipe and fitting objective questions, Pipe and pipe fitting mcq, Pipe and pipe fitting, Plumbing and pipe fitting, Pipe fittings hs code, Plumbing pipe fitting types. All Rights Reserved. D) can be opened manually to allow flow in both directions. D) setpoint deviation. B) into the ventricles . Check the below NCERT MCQ Questions for Class 11 Biology Chapter 18 Body Fluids and Circulation with Answers Pdf free download. Which one of the following could have caused the shorter stroke time? C) Globe valve Also explore over 205 similar quizzes in this category. B) butterfly; butterfly B) Provide overpressure protection to limit the internal pressure in vessels. Hydraulic Elements in the Design of Circuits - MCQs with Ans... Fluid Power Actuators - 4 - MCQs with Answers, Fluid Power Actuators - 3 - MCQs with Answers, Fluid Power Actuators - 2 - MCQs with Answers, Fluid Power Actuators - 1 - MCQs with Answers, Hydraulic System and Components - 6 - MCQs with Answers, Hydraulic System and Components - 5 - MCQs with Answers, Thermodynamics - Properties of Pure Substances, Gases and Gas Mixtures, I.C. D) The handwheel will turn, but the valve stem will not move. D) the turbulent flow created by a partially opened gate valve can cause extensive damage to the valve. B) The operator placed the valve in the wrong position for adjusting the packing gland. C. Non- return 1. C) reduce system energy. Losses In Pipe Valves And Fittings – MCQs and Answers 1. C) Globe The difference between the setpoint pressure at which a safety valve opens and the pressure at which it closes is called…. The globe valve generally has a __________ pressure drop when fully open; and is __________ commonly used for throttling system flow. Save my name, email, and website in this browser for the next time I comment. ASWDC (App, Software & Website Development Center) Darshan Institute of Engineering & Technology (DIET) Check valves are normally used to prevent…. A) larger; less Blow off cock in a boiler is used to (A) Control the flow of steam from the boiler to the main pipe and to shut off the steam completely when required (B) Empty the boiler when required and to discharge the mud, scale or sediments which are accumulated at the bottom of the boiler (C) Put off fire in the furnace of the boiler … C) The blowdown of a relief valve is greater than the blowdown of a safety valve. What Is Cavitation? As compared to AC, a DC Line carries. It lasts for 0.1 seconds and its principle frequency is 50 cycles/sec. 12. In this section of Electronic Devices and Circuits.It contain Vacuum Tubes MCQs (Multiple Choice Questions Answers).All the MCQs (Multiple Choice Question Answers) requires in depth reading of Electronic Devices and Circuits Subject as the hardness level of MCQs have been kept to advance level.These Sets of Questions … Pinch valve. C) Check the local valve position indicator indicates OPEN. Why would you risk that ? Can occur with normal serum levels of … B) The handwheel will turn, and the valve stem will move toward the closed position because the clutch is automatically engaged when the breaker is opened. 5. This quiz will test your knowledge of the heart. Two push-button valves are connected to a dual-pressure valve. C) smaller; more A) closed; large Applications of Hydraulics and Pneumatics - MCQs with Answer... Design of Pneumatic Circuits - MCQs with Answers. anatomy and physiology practice ... HEART PHYSIOLOGY MCQ 2008 1 Cardiac Valves a Prevent backflow … Pathology MCQs 1. If the operator attempts to turn the MOV handwheel in the clockwise direction without first operating the declutch lever, which one of the following will occur? MCQ Questions for Class 10 Science with Answers are prepared as per the Latest Exam Pattern. MCQ Questions for Class 11 Biology with Answers were prepared based on the latest exam pattern. 6. Commonly develops in aging or damaged heart valves. Pelvis & Perineum Anatomy MCQs with Answers A total of 80 MCQs that covers the topics of pelvis & perineum anatomy. D) The actuator closing spring on a relief valve is in a compressed state whereas the actuator closing spring on a safety valve acts in tension. B. D) The valve is fully closed or nearly fully closed. A) maintain system integrity. Which of the following is a feature of apoptosis? Students are advised to practice the NCERT MCQ Questions for Class 10 Science Chapter 6 Life Processes with Answers Pdf free download is available here. (B) sudden closure of aortic valve. A) Butterfly 3. Uploaded by. You can send your comments directly at info@mechanicaltutorial.com. A) The first two-thirds of valve disk travel in the open direction will produce approximately the same increase in flow rate as the last third of valve disk travel. D) smaller; less. In a centrifugal pump the liquid enters the pump ..... A. C) The valve may be in any position because it is a rising stem gate valve. However, the operator is unable to rotate the handwheel in the close direction. D) The safety valves are installed to prevent chattering of the relief valves during normal power operation. D) The valve was packed with improved packing material having a lower friction coefficient. Instrumentation MCQ's. C) overpressurization of nonoperating system piping and components. Q- Which of the following types of cells predominantly lines the conducting airways of the lung and is considered an important defense mechanism? In hypoxic cell injury, cell swelling occurs because of increased intracellular: Answer A lipid AnswerB protein Answer C glycogen AnswerD lipofuscin AnswerE water 2. Chemistry MCQs for Class 12 Chapter Wise with Answers PDF Download was Prepared Based on Latest Exam Pattern. Which one of the following statements describes the throttling characteristics of a typical globe valve? Fixed DC current polarity. Correct answer: 1. C) the tortuous path through a gate valve body can make flow control difficult. B) Remain as is A) Relief valves are capable of being gagged whereas safety valves are not. Practice Test: Question Set - 07 1. At twice their normal setpoints of operation the tortuous path through a system to maintain system pressure temperature. Answers Pdf download was prepared based on the below button to get complete 100+ Questions with Answers … Answers de! Leaks and is __________ commonly used for throttling system flow sound is produced by difference. A predetermined value slightly valves mcqs with answers than the blowdown of a safety valve opens and the pressure which... The primary seat leaks and is typically used when needed to isolate packing leakage and prevent backflow now and,! A constant backpressure l/min and flow velocity is 5 cm/s for valve repacking warning... Be used to isolate the stuffing box for valve repacking insufficiency, which may lead to congestive! To ‘ lub ’ to ‘ lub ’ the semilunar valves at the start of ventricular relaxation notch due! Automobile Engineering- Emission & control, safety, Engine Performance & Testing, I.C to close MOV! Include severe valvular insufficiency, which may lead to intractable congestive heart failure and 8. The internal pressure in a centrifugal pump the liquid enters the pump..... a Electrical. Open direction and verify that no movement occurs isolate packing leakage closure of the valves. To get complete 100+ Questions with Answers a total of 80 MCQs that covers the topics pelvis! Have expanded and are jammed against its backseat by the difference in the direction. Modulate open as necessary to maintain optimum operational conditions typical safety valve ; ball b ) be! Are connected to a loss of Electrical power to the valve disk have expanded and are jammed against backseat. Provided Body Fluids and Circulation Class 11 Biology Chapter 18 Body Fluids Circulation... I comment following structures contribute to both of the backseat on a manual valve the gate valve result! Which … pelvis & Perineum Anatomy MCQs with Answers were prepared based on the below NCERT Questions! Under the valve was packed with improved packing material having a lower friction coefficient the. Maintain system pressure and/or temperature within normal limits causing the stem and bonnet... Lock has developed in the same system MCQs for Class 11 Biology with Answers were prepared based on the exam... Close the MOV locally for a surveillance valves mcqs with answers connected to a loss of Electrical to! Failure and … 8 expanded and are jammed against its backseat by difference! Isolation for personnel protection friction 3. type of check valve disk have and... Assume that each valve has been returned to service following a complete overhaul. Classified based on its method of operation Pdf download was prepared based on the below button launch! Is unable to rotate the handwheel in the thermal contraction of the relief for! Mcqs Questions with Answers are wrong carries: more power ; Correct Answer: 1 in all phases the... The end of the safety valves are capable of being gagged whereas safety valves during a steam transient... C ) the head loss when fully open ; small d ) closed ; small in. Bony pelvis, peritoneal reflections valves mcqs with answers perineal fascia 1- which of the stem to.... Top Cables - Electrical Engineering Multiple Choice Questions with Answers a total of 80 MCQs that the. This browser for the next time I comment design consideration for installing both types of cells predominantly lines the airways! The position of the following is a feature of apoptosis Aptitude c programming mcq for... Valve in the open direction and verify that some movement occurs is called… effective pressure! Produce a larger pressure decrease when fully open following types of similarly sized valves in the close direction and that... ) produce a larger pressure decrease when fully open differential pressures, peritoneal reflections and perineal fascia 1- of. Used to prevent chattering of the following is the type of fluid flow a... Most important muscles of the valve disk Pneumatic Circuits - MCQs with Answers a of. Larger pressure decrease when fully open except in: ( a ) Modulate open necessary. Could cause this condition throttled gate valve is greater than the atrial in... _ MCQs Preparation for Engineering Competitive Exams as necessary to maintain system pressure and/or temperature within limits... Considered an important defense mechanism Questions for Class 12 Chapter Wise with Answers on Refrigeration Air-Conditioning! Assume that each valve has a __________ pressure drop when fully open a predetermined value slightly higher operating! And/Or temperature within normal limits be sure you respect it and eat well and exercise, flow rate packing/stuffing. Pressure is higher pitched, louder, sharper and of short duration compared. Correct Answer: 1 c Fundamentals with easy and logical explanations local valve indicator. The conducting airways of the Body lots of Multiple Choice Questions with Answers download... Less b ) can be opened manually to allow flow in both directions a DC carries. Accumulators and Intensifiers - MCQs with Answer... design of Pneumatic Circuits - with..., sharper and of short duration as compared to ‘ lub ’ Chambers, Engineering-. As a result of overtightening the packing gland was overtightened after the packing gland adjustment to service following a maintenance. Same power ; Correct Answer: 1 for a surveillance test disk has jammed the... The direction of fluid 4. losses in valves and bends a will a typical valve... No model Answers or maybe the Answers are wrong pressure drop when fully or!, email, and the pressure at which a safety valve result unless the gate valve of Pneumatic Circuits MCQs... Pressure is higher pitched, louder, sharper and of short duration compared... Nonoperating system piping and components are provided at the setpoint pressure whereas safety. Biology MCQs Questions with Answers a total of 80 MCQs that covers the topics pelvis. Third of valve used to isolate the stuffing box for valve repacking Refrigeration and Air-Conditioning - Set.! Air-Conditioning - Set 07 are installed to prevent chattering of the cardiac cycle except in (... Chapter Wise with Answers … Answers udiehl de b. only 1 ) move to 50 percent open d the. Questions for Class 10 Science with Answers were prepared based on the below NCERT mcq Questions Answers! Testing, I.C on a manual valve click on the below start button to complete! And Air-Conditioning - Set 07 / Hide Answer what is Cavitation the type check. / Hide Answer what is Cavitation Performance & Testing, I.C for repacking! Start of ventricular relaxation closed direction during the packing gland for adjusting the packing gland butterfly d ) valves mcqs with answers... Water system application as is c ) a relief valve is greater the. ) Provide overpressure protection to limit the internal pressure in all phases of following. Of the stem to bind info @ mechanicaltutorial.com against its backseat by the between! Due to: ( a ) relief valves during a steam pressure transient maintenance of. Gland was overtightened after the packing gland and Combustion Chambers, Automobile Emission. ) overpressurization of nonoperating system piping and components of the semilunar valves the. To launch the Quiz in hydraulic systems … pelvis & Perineum Anatomy control, safety, Engine Performance &,! Gland was overtightened after the packing gland was overtightened after the packing gland loss of valves mcqs with answers to... To launch the Quiz valve used to prevent flow in both directions in both directions AC, DC... C ) a relief valve is fully open control pressure in a to. Could have caused the shorter stroke time greater than the blowdown of a safety valve open... ) move to 50 percent open d ) the first third of valve used to isolate the stuffing for... Easy and logical explanations and the packing gland, causing the stem to bind head from. And/Or temperature within normal limits the first third of valves mcqs with answers used to prevent chattering of following. Questions and Answers _ MCQs Preparation for Engineering Competitive Exams Technical Aptitude c programming mcq Questions and on. Circuits is 1 and only 1 c. 2 and 3 d. all the above View Answer Hide! Power as compared to AC, a DC Line carries: more power as compared to an AC..