Lubricating oils - Study guides, Class notes & Summaries

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...

Class K rated portable fire extinguishers work because of: A. Cooling B. Smothering C. Saponification D. Chemical flame inhibition - C. Saponification Fires involving lubricating oils and liquefied petroleum gas (LPG) are classified as A. Class A B. Class B C. Class C D. Class D - B. Class B For which classification of fire do portable extinguisher ratings take into account the reactions between the metal and the agent? A. Class A B. Class B C. Class C D. Class D - D. Class D For...

ABSA 4B EXAM QUIZ BANK | 1566 QUESTIONS | WITH ALL CORRECT SOLUTIONS. Internal ____ is not required for dynamic type compressors. seals lubrication pressure monitoring corrosion monitoring temperature monitoring b Low pressure or high pressure are the two primary classifications of ____. centrifugal pumps sump pumps boilers draft fans pressure controllers e The boiler feedwater becomes increasingly ____ as it approaches the measurement of zero. acidic neutral softer ba...

A reciprocating engine is found to have excessive oil consumption without evidence of any oil leaks. What is the likely cause? o :## The piston rings are worn or broken. What are the functions of lubricating oil in reciprocating engines? o :## To reduce friction between moving parts and remove heat. Name two important characteristics of aircraft engine oil. o :## The oil must be light engough to circulate freely yet heavy engough to provide the proper oil film at engine operating temper...

ABSA 4B Exam Questions with 100% Correct Answers 2024/2025 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 - answer5. 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 - answer1. Flame scanner A ____ is installed to start a large diesel engine. 1...

BECC MOD 2How long are engineering legal records retained on board for? - correct answer 3 Years How long are operating logs retained on board for? - correct answer 6 Months What is the record where all speed changes for each individual shaft are recorded? - correct answer Bell Log What is the log that provides the day to day record of events pertaining to the engineering plant? - correct answer Engineering Log (T/F) Erasure are allowed on logs? - correct answer False Which report...

ABSA 4B Exam Questions with 100% Correct Answers 2024/2025 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 - answer5. 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 - answer1. Flame scanner A ____ is installed to start a large diesel engine. 1...

Propane Butane Ethane Methane All of the above -Answer-e Although ____ is created, high viscosity oils are still preferred for low speed/high load systems. lower floc point oils lower oil friction high pour point oils high velocity oils higher oil friction -Answer-e Every shift the boiler water should be ____. filled with dissolved solids tested condensed replaced evaporated -Answer-b Sodium sulphite is a commonly used ____ in boilers. oxygen scavenger carbon dioxide scavenger...

CIBTAC AND CIDESCO EXAMS CONDENSED QUESTIONS AND ANSWERS GUARANTEED A+ IMMUNITY - Protection against certain diseases - Inborn or acquired - Natural: exposure, forms antibodies to fight off and prevent reinfection - Artificial: Deliberate vaccination, antibodies formed, immunity built up TOXIN - Poison of complex chemical substances Brainpower Read More Previous Play Next Rewind 10 seconds Move forward 10 seconds Unmute 0:05 / 0:15 Full screen PUS - Contains bl...

Lubrication systems test 2023 with complete solution Listfive functions ofthe oil in an engine lubrication system.: Cools, Cleans,seals and cushions, prevents corrosion, and reduce friction. 2. The resistance of an oil to flow is known as its .: Viscosity. 3. Oil that flows freely has a viscosity.: Low. 4. The oil used in reciprocating engines has a relatively (high or low) viscosity.: High. 5. The measure ofthe change in viscositywith a given change in temperatureis know as the .: Visco...