Lubricating oils - Study guides, Class notes & Summaries

Lubrication Questions and Answers Already Passed What will happen if an engine is run at very high temperatures using a lubricant that is intended for lower temperatures? The oil pressure is likely to drop below the normal range. Consider these statements: 1. Mixing gas turbine and reciprocating engine oils is acceptable. 2. Gas turbine engine oils are primarily synthetic. Which of the following is accurate? Only the second statement is correct. What is commonly associated wi...

Oilers Plant Tenders (HHC) Civil Service Exam 365 Questions with Verified Answers The texture of an aluminum-soap lubricating grease is _________ - CORRECT ANSWER Stringy The property of a lubricant the allows it to adhere to metallic surfaces is known as ________ - CORRECT ANSWER Oiliness The physical appearance of a grease with a consistency number of four is MOST NEARLY _________ - CORRECT ANSWER Hard The one of the following measures that is commonly used to represent a rate of...

The one of the following types of oils MOST preferred for the hydraulic governor of a reciprocating steam engine is______ oil. Non-additive turbine type Oil The one of the following pumps that does NOT have moving parts to be lubricated is a ______ pump jet The LARGEST class of lubricants in common use is Mineral oil The sealing fluid in lubricating oil centrifuges is water In a well - operated lubricating oil and grease storage facility , lubricating oil is NOT normally removed from lar...

Lubrication Systems Test Questions and Answers Already Passed Identify five roles that engine oil performs in a lubrication system. It provides cooling, cleans components, seals and cushions surfaces, guards against corrosion, and minimizes friction. What term describes an oil's resistance to flowing? Viscosity. What kind of viscosity does oil have if it flows easily? Low. What type of viscosity is characteristic of oil used in reciprocating engines? High. What term refer...

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 -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 soft...

Lubrication Questions and Answers 100% Pass What are the key traits of hydrodynamic lubrication? Characterized by a "thick" fluid layer, minimal friction, and absence of wear, typically occurring at surfaces that match closely. What does the term 'ball-on-flat' describe? A classic scenario of a nonconformal contact, also referred to as Hertzian contact, where the interaction is a point contact under very high pressure. How does the viscosity of lubricating oils change under...

What are the 10 classes of supply and give examples? The 10 classes of supply based on Table 1-1 of AR 710-2 dated 28MAR2008 are: 1) Class I - Subsistence; examples are MRE's, UGR rations 2) Class II - Clothing, individual equipment, tool sets and toolkits, hand-tools, administrative and housekeeping supplies and equipment. 3) Class III - POL; examples are petroleum and solid fuels, lubricating oils and lubricants. 4) Class IV - Construction Materials, to include fortification/barrier mat...

Power Tech - Lubrication – Junior Questions and Answers 100% Pass What are the three main categories of lubrication? 1. Dry (using powders) 2. Semi-dry (using grease) 3. Liquid (using oils) Name four key roles that an effective engine lubricant should fulfill. 1. Eases engine startup 2. Reduces friction between engine parts 3. Assists in cooling engine components 4. Keeps the engine parts clean Which lubrication method includes a trough in the crankcase? Constant level model ...

ABO-AE Review 2 The eyelids are also referred to as: A. Bulbar aperture B. Palpebral aperture C. Tarsal aperture D. Tonic aperture - ANSWER B. Palpebral aperture The primary purpose of the eyelids includes: A. To keep the eye moist through the blinking action B. To protect the eyes C. to help to distribute tears, oxygen, and nutrients/ flush away debris D. All of the above - ANSWER ...

List five functions of the oil in an engine lubrication system. o :## Cools, Cleans, seals and cushions, prevents corrosion, and reduce friction. The resistance of an oil to flow is known as its ________. o :## Viscosity. Oil that flows freely has a ____ viscosity. o :## Low. The oil used in reciprocating engines has a relatively _____ (high or low) viscosity. o :## High. The measure of the change in viscosity with a given change in temperature is know as the ______ ________. o :## ...