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Exam (elaborations)

High pressure boiler Question and answers.

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High pressure boiler Question and answers.

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High pressure boiler Question and
answers.




ASME requires low pressure Steam boiler to be pressure tested how often - (correct
answer) - Annually

Which of these should be used on a electrical fire - (correct answer) - Class C

On a low pressure boiler how often should you check the safety valve - (correct
answer) - 10 days

What is the purpose of the lower part of the water column - (correct answer) -
Collects settlements in foreign material

If certain grade of fuel are not preheated properly they may cause - (correct
answer) - Poor combustion and high fuel consuption

Induced draft fan, forced fan in the fuel valve are inteelocked because - (correct
answer) - Generally the forced fan will not start until the induced fan starts

What is the purpose of a manual reset - (correct answer) - It secures fuel in the
flame scanner

A cast iron boiler is stacked so it is - (correct answer) - An HRT boiler

How often do we check the flame scanner - (correct answer) - Once a week

How do uou prevent a fire in your pulverizer - (correct answer) - Increase fuel, and
cold air

High-pressure boilers generally operate at pressures - (correct answer) - Above
15psi and over 6 BHP

, Pressure gauge should Never have a range less than - (correct answer) - One and a
half times safety valves set pressure

After water is blown out of the sighon, why should live steam never be allowed to
enter a burden tube - (correct answer) - Live stream will damage the pressure gage

All of the following are essential to maintaining the proper fuel oil pressure with fuel
oil expect - (correct answer) - Obtaining the correct difference in pressure inside
and outside the boiler

What could be more dangerous to save operations of a low pressure boiler - (correct
answer) - Adding water to an operating boiler when the water levels cannot be
seen

Which of the following is the best if the low pressure boiler does not have an air
vent - (correct answer) - Vent the boiler by using the trycocks

Following flame failure controls must be deneegized fuel and ignition cicruits -
(correct answer) - Within 4 seconds

What is the purpose of an evaporation test on a low pressure boiler - (correct
answer) - To test the low-water cut off control

How can an operator prevent damaging the tubes while using a cleaner to remove
scale from boiler tubes - (correct answer) - Never allowed her to clean her to stay in
one place

In a steam boiler which of the following should never be placed between the safety
relief valve and the boiler vent - (correct answer) - Shut off valve

Try cocks are a - (correct answer) - Second means of determining water levels of a
boiler

Saturated steam is at its - (correct answer) - Corresponding temperature and
pressure

Boiler plate and staybolts are subjected to - (correct answer) - Tensil stress

How to increase steam pressure - (correct answer) - Gas pressure

A bottom blow downlines in a water tube boiler are located in - (correct answer) -
Lowest part of combustion chamber

Open feed water heater is located - (correct answer) - Above feed water pump

What does the feed water do - (correct answer) - Removes air, non-consendible
gasses and aslo regulates the valve

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