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NJ High Pressure Black Seal Exam Prep Questions and Answers.NJ High Pressure Black Seal Exam Prep Questions and Answers.NJ High Pressure Black Seal Exam Prep Questions and Answers.
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In accordance with ASME CSD-1, where is the installation of a manually operated remote shutdown switch or circuit breaker to be located? - Correct Answer just outside the boiler room door, unless the door is on the building exterior and it must be marked for easy identification and installed on every exit door of the boiler room. While making a round of your boiler room, the boiler feed water pump is making a strange noise. The pump casing and the temperature of the water has risen above normal. What would most likely cause this problem? - Correct Answer pump cavitation issue What is the function of a dry pipe in a boiler? - Correct Answer to remove moisture from the steam drum What is the heating surface of water-tube, with a diameter of 3 1/2 inches and a length of 20 feet? - Correct Answer 18.32 sq. ft. One mechanical horsepower is equal to: - Correct Answer 33,000 ft-lb/min What is the regulation corresponding to boiler, pressure vessels and refrigeration systems in New Jersey? - Correct Answer New Jersey Administrative Code (NJAC) 12: According to the codes and standards adopted and incorporated by reference of the boiler pressure vessels and refrigeration regulations, welded repairs and any alternations made to the boilers must comply with what? - Correct Answer The original Code of construction when it was built T/F The examining board of the mechanical inspection bureau of boiler and pressure vessel compliance may consider an applicant experience of an equivalent amount for grade or classification from some other jurisdictional authority (state or federal). - Correct Answer True In your boiler plant you have pumps that are used for numerous applications. One of the pumps has a small amount of liquid coming from the packing gland. Is this normal or is it a problem? - Correct Answer this is normal and is necessary to lubricate and cool the packing. The purpose of backs eating a manual valve in an operating system is to: - Correct Answer isolate system pressure from the packing stuffing box to minimize packing leakage.
According to the law, how often must all steam or hot water boilers shall be inspected in the state of New Jersey? - Correct Answer once every year at 12 month intervals from pervious inspection By N.J.A.C. 12:90 rules, what is the minimum thickness allowed for atmospheric type blow down tank? - Correct Answer 5/16 inch The valve identified as (a) is what type of valve? - Correct Answer gate Valve A boiler with an MAWP of 150 psi and a safety valve setting of 100 psi with a 3" valve disc - what would be the total force needed to open the safety valve against opposing spring force? - Correct Answer 707 lbs. Boiler man ways and hand holes are oval for what reason? - Correct Answer for removal from the pressure vessel Air receivers must conform to what ASME Code? - Correct Answer Section VIII What is the total horsepower of a plant that has three 350 hip boilers and one 500 kW steam turbine? - Correct Answer 1,720 hip How are the tube sheets supported in a fire-tube boiler? - Correct Answer by the shell, stays, and tubes The Mechanical Inspection Bureau incorporates by reference various codes, standards and practices. Once specific safety practice incorporated by reference for licensed operators specifies and identifies one called a qualified individual. How is the qualified individual identified in this reference? - Correct Answer A boiler service technician who is engaged in and responsible for the installation, replacement, repair or service of the boiler, fuel burning controls, and safety devices and is experienced in such work. In some states this individual must also hold an appropriate boiler operator's license. Where would you find down comer tubes? - Correct Answer in water-tube boilers T/F an applicant for an engineer's license may upon prior request be examined through a reader or interpreter who may accompany the applicant, provided the reader is accepted to the mechanical inspection bureau of boiler and pressure vessel compliance? - Correct Answer False What is the Act (Law) that establishes the licensing requirements in the state of NJ for Stationary, Power Engineers, Refrigeration Engineers and Boiler Operators? - Correct Answer N.J.S.A 34:7- Which is the act that a Mechanical Inspection Bureau exists in New Jersey? - Correct Answer the New Jersey Statute Annotated (NJSA) 34:1-38.
When a discharge valve is opened to the atmosphere, the pressure on the upstream side of the valve will: - Correct Answer decrease, and the pressure on the downstream side will remain the same. Which of the following could cause a tube in a high-temperature hot water boiler to overheat? - Correct Answer poor circulation When a low-water fuel cutoff (LWFCO) has activated on a hot water heating boiler what shall happen? - Correct Answer Operation of the LWFCO shall cause a safety shutdown and lockout, requiring a physical manual reset A three-element feed water regulator is controlled by what means? - Correct Answer steam flow, feed water flow, and drum level What would be the over-speed trip setting on a turbine with a normal operating speed of 1770 rpm? - Correct Answer 1947 rpm What is the function of the thrust bearing on a steam turbine? - Correct Answer to maintain the axial position of the rotor Where in the NJ Administrative Code (NJAC) are the duties of licensed persons established? - Correct Answer N.J.A.C. 12:90-3. After an adjustment of the packing gland on a valve that had a minor packing leak, the operator attempts to operate the valve but finds it stuck. What is the most probable cause? - Correct Answer The operator overtightened the packing, causing the stem to bind.