Doclaura

A control room operator notices that the stack temperature of the hot oil heater is increasing rapidly. The operator should: Choose one answer. a. Activate the emergency shutdown b. Call the shift boss on the intercom c. Send an operator out to see if there is smoke coming from the oil heater stack d. Wait to see if the temperature will come down again e. Alert the fire department - ANS a The preferred material for construction of hot oil systems is: Choose one answer....

The relative humidity is plotted on a psychrometric chart along: Choose one answer. a. The Lines curving upwards from the lower left to the upper right side of the chart b. The Horizontal axis on the bottom of the chart c. Vertical lines, and read along the horizontal scale at the bottom of the chart d. The Saturation line and plotted along the horizontal lines e. Horizontal lines and read along the left side scale - ANS a The specific volume of air is expressed as the ...

If a new boiler is not properly boiled out, it may result in: Select one: a. furnace explosion b. tubes rupturing c. a foaming condition occurring d. nuisance shut down - ANS c An opening from a mechanical room where combustion equipment is housed that provides the fresh air required for satisfactory combustion of a fuel is the: Select one: a. combustion air opening b. windbox c. blower d. damper - ANS a A boiler inspection: Select one: a. must be done befo...

The pressure of a fully charged SCBA is about A)24 MPa B)1 atmosphere C)31 MPa D)3 MPa E)20 MPa - ANS C This group recommends updates to the learning materials of each class of Power Engineer, and the criteria required to ensure a Power Engineer is properly qualified when a Certificate of Competency is issued. Select one: a. ANSI b. ACI c. SOPEEC d. IPECC e. ASME - ANS D What is one of the two main purposes of the CSA B-52 code? Select one: a. To promote unifor...

What determines how much ash a combustion process produces? Select one: a. how long the fuel has been in storage b. how the fuel is prepared c. the type of fuel d. how the fuel is burned - ANS c (4-040-1.1) The earth's water cycle is referred to as the: Select one: a. hydrostatic cycle b. meteorological cycle c. hydrographic cycle d. hydrological cycle - ANS d If noise can't be reduced to safe levels by getting a quieter machine or by using sound absorbing m...

Lock washers: a. Prevent the equipment from being dismantled b. Reduce the chances of unwanted turning of the bolt or nut c. Distribute the lock nut force d. Prevent marring of the work surface - ANS b When a boiler is removed from service, it can be drained once the temperature reaches approximately: a. room temperature b. 50°C c. 90°C d. 70°C - ANS c When storing a hacksaw: a. flip the blade, so that the cutting surfaces are not exposed to damage b. release t...

'm/s' is the SI unit for: a) acceleration b) velocity c) force d) mass e) weight - ANS b The rate of change of velocity is called: a) mass b) force c) acceleration d) weight e) displacement - ANS c If a body travels 850m in 34 seconds, what will its average velocity be, in km/h? a) 25 b) 900 c) 90 d) 215 e) 250 - ANS c A force of 320 kN acts perpendicular to a level arm, at a distance of 4m from a point. What turning moment does the for...

Which of the following is caused from scale buildup on boiler tubes: 1. Increased boiler efficiency 2. Weakening of tube metal 3. Decreased boiler efficiency 4. Increased flue gas temperature 5. Cracks in boiler tubes a. 1,2,3,4 b. 1,3,4,5 c. 2,3,4,5 d. 1,2,4,5 e. 1,2,3,5 - ANS c. 2,3,4,5 When adding phosphate to the boiler water, the chemical may: 1. Combine with dissolved solids in the boiler water 2. Decrease the dissolved solids in the boiler water 3. Increase t...

Where does the oxygen in the air come from? Select one: a. plants b. minerals c. the oceans d. animals - ANS a. plants If noise can't be reduced to safe levels by getting a quieter machine or by using sound absorbing materials around it, what can be done? Select one: a. Move the equipment so that the noise isn't a concern b. Use hearing protection c. Re-engineer the equipment d. Restrict access to the machine - ANS b. Use hearing protection If a hazardous li...

why was the ASME formed? - ANS develop tech info, high standard of design and education, personal and professional development,ethical conduct, solutions for tech problems CSA B51 committee? - ANS provincial and territorial jurisdiction, boiler manufacturers, insurance companies what is the purpose of B52? - ANS provide safe design, construction, installation, operation, repair of refrigeration and air con. promote uniform requirements ASME 1 - ANS aspec...

The material designation of a valve: Select one: a. gives where the material is used b. tells what material makes up the valve c. gives the temperature to which the valve can be subjected d. tells what the material is suited for - ANS b Pipe hangers are installed at three metre intervals to: Select one: a. align the pipe, keep the pipe out of the way of foot traffic b. provide a proper drainage slope, align the pipe, allow free movement for pipe expansion c. provide a proper...

Which activity does not use steam? a. heavy oil recovery b. computer chip manufacturing c. removing skin from potatoes d. refrigeration systems - ANS b The holder of a Certificate of Competency, the classification of which authorizes him or her to act as a engineer, may sketch, construct, install, operate, repair and give advice on all things pertaining any ______ in which that person is employed. a. fish plant b. welding shop c. power plant d. hydro plant - ANS c W...

Which of the following is caused from scale buildup on boiler tubes: 1. Increased boiler efficiency 2. Weakening of tube metal 3. Decreased boiler efficiency 4. Increased flue gas temperature 5. Cracks in boiler tubes a. 1,2,3,4 b. 1,3,4,5 c. 2,3,4,5 d. 1,2,4,5 e. 1,2,3,5 - ANS c. 2,3,4,5 When adding phosphate to the boiler water, the chemical may: 1. Combine with dissolved solids in the boiler water 2. Decrease the dissolved solids in the boiler water 3. Increase t...

What is metallurgy? - ANS The study of metals What are the three groups of metallurgy? - ANS Extractive Mechanical Physical What is extractive metallurgy? - ANS The study of the extraction and purification of metals from their ores. What are the 3 types of extractive metallurgy? - ANS Pyrometallurgy - Melting the ore in a furnace to release the metal. Hydrometallurgy - Dissolving the metal from the ore and recovering it as a powder. Electrometallu...

1 boiler HP equals how many kilowatts? - ANS 9.809 kW Boiler Definition? - ANS The exact part of the unit where waters changes from liquid to vapour state Steam Generator Definition? - ANS Embraces the many combinations of heating surfaces such as waterwalls, superheaters, reheaters, economizers and air heaters. Steam Generating Unit definition? - ANS Consists of a steam generator and all of its associated equipment including: fuel burning, ash removal an...

The popping pressure of a safety valve must be: a. Lower on the economizer than the main steam drum b. Higher on the main steam drum than the air preheater c. Lower on the main steam drum than the superheater d. Higher on the main steam drum than on the superheater e. the same on the main steam drum as on the superheater - ANS d Safety valves should be opened manually to: a. Release internal pressure b. Remove sludge c. Lower boiler water level d. T est the operation of the v...

Flow is proportional to: Select one: a. the square root extractor b. pressure differential c. the square root of the temperature differential d. the square root of the pressure differential e. a constant head - ANS d A capillary is the name given to: Select one: a. the bulb holding the fluid of a filled thermometer b. the line attached to the measuring junction of a thermocouple c. a tube with a small uniform bore d. the key part of a thermistor e. a unit used only in refr...

Question 2 For high temperature blades on large steam turbines to achieve the required strength and oxidation-erosion resistance what material is used? Select one: a. carbon steel b. alloyed chrome steel c. modified stainless steel d. leaded nickel-brass e. mechanite - ANS The correct answer is: alloyed chrome steel Question 3 Dual fuel compression ignition engines, operate by: Select one: a. drawing in a mixture of gas and air and injecting of fuel after compressio...

What is the minimum inside diameter for a manhole which is required on a pressure vessel? - ANS 406mm A Power Engineer's Certificate is required to be: - ANS posted or hung in a conspicuous place on the premises When applying to write a Power Engineering Certificate of Competency examination, the candidate, when applicable, may have to: - ANS be in possession of the next lower class of certificate A Fourth Class Power Engineer's certificate of competency qu...

In a preventive maintenance system, mechanical work means: 1) Inspecting 2) Adjusting 3) Preparing work orders 4) Parts inventory control 5) Lubricating a. 1, 2, 3 b. 2, 3, 4 c. 3, 4, 5 d. 1, 2, 5 e. 2, 4, 5 - ANS D Preventive maintenance is the systematic inspection, cleaning, lubrication and servicing of equipment. a. True b. False - ANS A If occasional shut downs are not critical or do not lead to expensive loss of production, preventive maintena...