Globe valves - Study guides, Class notes & Summaries

MN Boiler License Questions With Complete Solutions Graded A+ a question an answer what are the conditions necessary for good combustion? a) low sulfur content b) Thermal, thermocoupler, tubular c) turbulence, temperature, time 3T's c) turbulence, temperature, time 3T's why is secondary air necessary in hand fired boilers? a) Necessary to burn the combustible gases b) if primary air should fail c) used only if sulfur content is high a) Necessary to burn the combustible gases when ...

2024 update DC Third testing Questions and Answers 100% Pass The component in which liquid vapor by absorbing heat is called? - Correct Answer ️️ - Evaporator Select the best answer electrical grounding method? - Correct Answer ️️ -Metal stake drive 8 foot into the ground. A _____ valve should be used for throttling purpose? - Correct Answer ️️ -Globe What is the acceptable range for residual sodium sulfite in the boiler maintain? - Correct Answer ️️ -30-70 What is the B...

A gate valve offer is very little resistance to flow went open, so it produces very little _______ correct answer: Pressure drop Gate valve should not be used to ______ correct answer: Throttle flow Enough gate valve is likely to be used in which of the following applications correct answer: Slurry or waste Which of the following valves is a rotary action valve? correct answer: Ball Which of the following valves is easily adapted to multiport construction correct answer: Plug ...

MD Stationary Engineer Practice Questions and Answers Latest Updated 2024/2025 (100% Correct) Gases of Combustion that cool on Contact with the boiler heating Surface before combushion is completed Cause a(n) _________ - Answer Formation of soot and smoke In the event of a flame failure, the programmer will______ - Answer Secure the fuel, purge the firebox, and then shut down Boil the water must be conditioned to prevent ______ (3 Answers) - Answer Formation of scale, oxygen pitting, carry...

Lowest boiling point of water is at? a. 3000m above the sea level b. Just below sea levelc. at 1000m above sea level d. at 101.3kPa - Answer-a. 3000m above the sea level Efficiency of an electrostatic precipitator is: a. 75% b. 60% c. 90% d. 99.9% - Answer-d. 99% Non-Return stop valves are important in which situations a. when connected in parallel with other boilers b. when boiler trips c. if boiler ruptures d. all of the above - Answer-d. all of the above 4th class power enginee...

*A38 and AX38 belts should not be mixed on a drive design to use AX38 belts because? - They require different sheaves for their use (Rob not sure) *Emergency power systems must supply power when local power fails to _____. - exit lights and stairs lights (Rob isn't sure) *How do you change pressure from PSI to feet of water? - Multiply by 2.31 *How great a variation from the recommended shade is allowable in a given welding or cutting operation? - Two shades darker or lighter/Two shades l...

The Fireman System originates below the waterline with the __________. Sea Chest Which valve is the last valve you open before putting the pump on line and the first valve you will shut when securing the pump? Fire Pump Discharge Valve What valves are used to isolate system components? Cutout, Discharge, and Cross Connect Valves Gate, Ball, Globe (Pump Discharge), or High Performance butterfly valves are considered ________________. Cutout Valves For which monitoring method must the assig...

Treatment 2 Wastewater Operator certification Study Guide Exam GradedA General Wastewater Treatment: What is the pressure head caused by? Water elevation General Wastewater Treatment: What color should the piping be that contains reclaimed water? purple General Wastewater Treatment: What is the term for the height to which a column of water will rise in a well. piezometric surface General Wastewater Treatment: In general, what is the maximum practical lift of pumps...

MN Boiler License Exam Questions and Answers, Latest Updated 2024/2025 (GRADED) what are the conditions necessary for good combustion? a) low sulfur content b) Thermal, thermocoupler, tubular c) turbulence, temperature, time 3T's - answerc) turbulence, temperature, time 3T's why is secondary air necessary in hand fired boilers? a) Necessary to burn the combustible gases b) if primary air should fail c) used only if sulfur content is high - answera) Necessary to burn the combustible gase...

API Recommended Practice 574, Inspection of Piping, Tubing Valves, and Fittings, does not cover: a. control valves. b. piping smaller than 2" NPS. c. tubing smaller than 1.5" diameter. d. fittings smaller than 2" NPS - A The refining industry generally uses what type piping for severe service? a. brass b. cast c. seamless d. longitudinal seam welded - C Piping made by rolling plates to size and welding the seams is larger than ______ inches outside diameter. a. 10 b. 16 c. 14...