ABSA Study guides, Class notes & Summaries

ABSA 4B EXAM QUESTIONS AND ANSWERS 100% PASS Internal ____ is not required for dynamic type compressors. seals lubrication pressure monitoring corrosion monitoring temperature monitoring - Answer- b Low pressure or high pressure are the two primary classifications of ____. centrifugal pumps sump pumps boilers draft fans pressure controllers - Answer- e The boiler feedwater becomes increasingly ____ as it approaches the measurement of zero. acidic neutral softer basic alkaline...

ABSA Practice 4A – 1 Questions and Answers 100% Pass (4-081-1.16) The output voltage of a shunt DC generator is varied by adjusting the: Select one: a. Pole piece air gaps b. Output current c. EMF d. Field rheostat - Answer- d (4-085-1.11) The Bourdon tube is often shaped in the form of a "C", having an arc span of about: Select one: a. 270 degrees b. 90 degrees c. 180 degrees d. 200 degrees - Answer- a (4-037-2.7) The extinguishing medium for a Class "D" fire is: Select on...

Power Engineering ABSA 4B Exam Questions and Answers 100% Pass After a bearing has been removed for cleaning, it should be soaked for a period of _____ hours in clean solvent. A) 12 to 16 B) 12 to 14 C) 14 to 16 D) 10 to 12 E) 15 to 16 A- Answer If an oil's viscosity changes a great deal with little temperature change, it will then have a: A) High pour point B) High carbon residue C) High viscosity index D) Low pour point E) Low viscosity index E- Answer Oil additives: A) Nev...

ABSA: 4th Class Part B - Comprehensive Exam 4 Questions and Answers 100% Pass One of the legal responsibilities of the engineer during an inspection is: Select one: a. To notify the Workers Compensation Board of the inspection b. Point out any known or suspected defects to the inspector c. To have at least two staff members present at all times d. To be in possession of an inspection certificate - Answer- b The _____ tubes of a fired hot oil heater have fins on their outer surfaces. Sel...

4 A ABSA Questions with 100% Correct Answers where do we use stays on a fire-tube boiler? A) at the top of the boiler b)outside of the boiler to mounting brackets c) in the steam space of the boiler d)between the tubes - Answer- C vanstone flange held in place? A)screwed fittings B)loosely C) threaded d)star pattern - Answer- B effiency of electrostatic precipitator? a) 84% b)92.9% c)98.9% d)99.9% - Answer- D what is aluminum made from? 1)pig iron 2)aluxes 3)bauxite 4)copper ...

ABSA 4B Exam Questions and Answers 100% Pass Which of the following pump designs has a spiral casing with an increasing cross sectional area? 1. rotary pump 2. rotary gear pump 3. rotary lobe pump 4. reciprocating pump 5. volute pump - Answer- 5. volute pump A clear line of sight to the flame is required by a(n): 1. Flame scanner 2. Thermopile 3. Flame rod 4. Thermocouple 5. All of the above - Answer- 1. Flame scanner A ____ is installed to start a large diesel engine. 1. electric...

4th Class ABSA Exam Part A Practice Questions and Answers 100% Pass Absolute pressure is: - Answer- gauge pressure plus atmospheric pressure The motion of moving parts is _____ by friction: A: Prevented B: Improved C: controlled D: resisted E: Regulated - Answer- D: resisted Voltage is a) the rate of current flow b) the rate of electron flow c) electromotive force d) Kinetic energy e) A form of power - Answer- c) electromotive force The resistance of a conductor is affected by: 1...

ABSA B1 Study Bank Questions with 100% Correct Packaged watertube boilers capacities range from? a. 2300 kg to 65000 kg per hour b. 500 kg to 100 mg per hour c. 15 psi to 15000 kg per hour d. 65000 to 100000 kg per hour - Answer- A The main advantage of the packaged boiler is its a. small size b. compact design c. low cost D. quality steam - Answer- C Feild erected boilers have outputs of? A 75,000 kg/h B 100,000 kg/h C 100 mg/h D 150,000 kg/h or more - Answer- D Where electric p...

ABSA: 4th Class Part B - Comprehensive Exam 2 Questions and Answers 100% Pass What must be located outside a Class T machinery room? Select one: a. Spare flashlights b. Disposable coveralls c. Machinery shut off switch d. Light switches - Answer- c Degradation of heat transfer fluid of a hot oil system will begin to occur if: Select one: a. The oil filter is not serviced regularly b. The oil temperature is above a specified range, for an extended period of time c. The oil is allowed ...

ABSA: 4th Class Part B - Comprehensive Exam 1 Questions and Answers 100% Pass Temporary hardness in feedwater is caused by: Select one: a. Magnesium sulphate b. Calcium carbonate c. Magnesium bicarbonate d. Sodium nitrate - Answer- c What is the recommended boiler water pH for wet layup? Select one: a. 10 b. 12 c. 7.5 d. 7 - Answer- a A photoelectric flame scanner: Select one: a. Produces a steady voltage signal b. Requires a clear line of sight to the flame c. conducts current...