Water tube boiler Study guides, Class notes & Summaries
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MN Boiler License Questions With Complete Solutions Graded A+
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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 ...
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Illinois State Plumbing Exam with Correct Answers
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Illinois State Plumbing Exam with Correct Answers 
Chemical substance that does not allow oxides to form on freshly cleaned copper 
before soldering or brazing. - ANS ️️ Flux 
Where is an escutcheon ring used? - ANS ️️ The outside of the stub out pipe 
A waste pipe that discharges into and through an approved open connection. - ANS ️️ 
Indirect Waste Pipe 
Which 2 parts of a trap are used to measure the depth of the trap seal? - ANS ️️ 
The crown weir and the top of the dip of th...
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City of Omaha Stationary Engineer First Grade questions with complete solutions
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What is a return tubular boiler? correct answer: A return tubular boiler - the products of combusting passing through the tubes while the water surrounds the tubes. 
 
What is a water tube boiler? correct answer: A water tube boiler - water inside the tubes while the production of combustion passes around the tubes. 
 
How is the head of a B&W boiler stayed? correct answer: There are no stays 
 
Why are the tubes on a Sterling Boiler bent? correct answer: So they can enter the drum radially....
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3rd class stationary steam engineer license prep questions with complete solutions
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_________ are necessary for complete combustion correct answer: time, temperature, mixture, and atomization if the steam pressure gauge indicates 200 PSIG, the absolute pressure is______ correct answer: 214.7 a boiler is operating at 400 PSI, and the safety valve opens at 410 PSI and closes at 398 PSI. The blowdown is______psi correct answer: 12 an oil cooler is commonly used with a(n) ________ when operating in conjunction with a turbo-generator correct answer: steam turbine a boiler is produci...
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3rd class stationary steam engineer license prep questions with complete solutions
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_________ are necessary for complete combustion correct answer: time, temperature, mixture, and atomization if the steam pressure gauge indicates 200 PSIG, the absolute pressure is______ correct answer: 214.7 a boiler is operating at 400 PSI, and the safety valve opens at 410 PSI and closes at 398 PSI. The blowdown is______psi correct answer: 12 an oil cooler is commonly used with a(n) ________ when operating in conjunction with a turbo-generator correct answer: steam turbine a boiler is produci...
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Detroit Stationary Engineer 3rd Class Practice Exam 1 Correct 100%
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Lost motion in a duplex direct acting boiler feed pump: 
a. Is necessary 
b. Should be avoided 
c. Is due to wear on the tappets and callas. - ANSWER a. Is necessary 
 
A scotch marine boiler is: 
a. Horizontal fire tube boiler 
b. Vertical fire tube boiler 
c. Water tube boiler - ANSWER a. Horizontal fire tube boiler 
 
Lead is the amount the valve is open when the: 
a. Crank is on dead center 
b. Valve is midway on its stroke 
c. Eccentric is exactly 90 degrees ahead of the crank - ANSWER a. C...
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3rd class stationary steam engineer license prep questions with complete solutions
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_________ are necessary for complete combustion correct answer: time, temperature, mixture, and atomization 
 
if the steam pressure gauge indicates 200 PSIG, the absolute pressure is______ correct answer: 214.7 
 
a boiler is operating at 400 PSI, and the safety valve opens at 410 PSI and closes at 398 PSI. The blowdown is______psi correct answer: 12 
 
an oil cooler is commonly used with a(n) ________ when operating in conjunction with a turbo-generator correct answer: steam turbine 
 
a b...
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High Pressure Boilers 1069 * QUESTIONS WITH COMPLETE SOLUTIONS
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Boiler water is treated in order to prevent 
 
a) sludge, mud, pitting, corrosion 
b) foaming, corrosion, carryover, sludge 
c) sludge, corrosion, scale, carryover 
d) scale, sludge, mud, pitting 
e) foaming, carryover, pitting, corrosion c 
 
Dissolved solids in raw water 
 
a) cause pitting of boiler surfaces 
b) cause grooving of piping surfaces 
c) are organic matter 
d) cannot be removed with filters 
e) cause corrosion of boiler surfaces d 
 
Boiler surfaces may have what appears to ...
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Stationary Engineering |84 questions| with correct answers
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What is the pressure at the base of a vertical foot of water? CORRECT ANSWER 0.433 psi 
 
How much should the boiler pressure increase when performing a hydrostatic test? CORRECT ANSWER 1.5 times the safety valve setting 
 
The range of a boiler steam pressure gauge. CORRECT ANSWER 1.5 to 2 times the safety valve setting 
 
Fuel oil heaters must be used when burning what? CORRECT ANSWER No. 6 fuel oil 
 
What is the maximum allowable working pressure of a low pressure steam boiler? (MAWP) CORREC...
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Boilermaker NCCR Test Questions And Answers
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Boilermaker NCCR Test Questions And Answers 
Boilermaker NCCR Test 
 
 
 
 
 
1 ft 3-3/4 in + 2 ft 1-1/16 in +5 ft 10- 7/8 in = - ANS 9 ft 3-11/16 in 
 
A 1-inch plate is to be cut. Why should an acetylene gerulator on a cutting rig not be adjusted over 15 PSI? - ANS Acetylene is unstable above this pressure 
 
A big control valve is pulled who is responsible for the rigging? - ANS Crane operator and rigger 
 
A boiler maker must have all of the following wh...
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