Monday, 15 October 2018

Multiple Choice Questions (MCQ) with Answers on Engine Lubrication System

1-Lubricating oil
(A) Minimizes wear in moving parts
(B) Helps in keeping the parts cool
(C) Washes away and carries away dirt
(D) All of the above
(Ans: D)

2-Viscosity index (VI) is a measure for the change of viscosity with change in
(A) Temperature
(B) Pressure
(C) Volume
(D) All of the above
(Ans: A)

3-The following type of Lubrication system is used in two stroke engines
(A) Petroil (mist) system
(B) Wet sump system
(C) Dry sump system
(D) All of the above
(Ans: D)

4-In the following system, lubricating oil is carried in separate tanks from where it is fed to the engine
(A) Mist lubrication system
(B) Wet sump system
(C) Dry sump system
(D) Splash system
(Ans: C)

5-The following type of Lubrication system is used in Aircraft Engines
(A) Mist lubrication system
(B) Wet sump system
(C) Dry sump system
(D) Splash system
(Ans: C)

6-The following type(s) of Oil pump(s) is (are) used in Engine Lubrication system
(A) Gear type
(B) Rotor type
(C) Plunger type
(D) All of the above
(Ans: D)

7-The following is (are) oil pressure gauge(s)
(A) Pressure expansion type
(B) Electric type
(C) both (A) and (B)
(D) None of the above
(Ans: C)

8-The purpose of crankcase ventilation is to
(A) remove harmful particles from the engine
(B) provide proper lubrication to the engine
(C) provide air for combustion to the engine
(D) all of the above
(Ans: A)

9-The following part(s) is(are) lubricated by splash system
(A) Piston and piston rings
(B) Tappets
(C) Cams on camshaft
(D) All of the above
(Ans: D)

10-The following part is not lubricated by Pressure feed system
(A) Timing gears
(B) Valve rods and Push rods
(C) Rocker arms
(D)  Main bearings of crankshaft
With best regards,
BEAT PLASTIC POLLUTION , the theme for World Environment Day 2018, 

26 Multiple choice questions

  1. The point at which the ignitable vapours emitted by the oil is sufficient to support a flame
    1. INCORRECT: 
    2. CORRECT: 
  2. A drain built into the filler cap well that catches overflow oil and directs it overboard when the reservoir is serviced
    3. INCORRECT: 
    4. CORRECT: 
  3. A system where all of the oil is stored within the engine crankcase and distributed by a pump throughout the engine
    1. INCORRECT: 
    4. CORRECT: 
  4. - Viscosity
    - Specific gravity
    - Color
    - Cloud point
    - Pour point
    - Flash point
    - Fire point
    1. CORRECT: 
  5. The temperature at which oil begins to emit ignitable vapors
    3. CORRECT: 
  6. The measure of oil's resistance to flow
    4. CORRECT: 
  7. - Wet-sump
    - Dry-sump
    2. CORRECT: 
  8. An oil filtering system that only filters around 10% of the oil passing through the system
    4. CORRECT: 
  9. The lowest temperature at which oil can flow or be poured
    4. CORRECT: 
  10. - Straight mineral oil
    - Ashless-dispersant oil
    - Multiviscosity oil
    - Synthetic oil
    3. CORRECT: 
  11. - Gear
    - Gerotor
    1. CORRECT: 
  12. An oil to air heat exchanger
    4. CORRECT: 
  13. - Pressure
    - Splash
    - Spray
    4. CORRECT: 
  14. An instrument used to measure oil viscosity
    4. CORRECT: 
  15. - Reservoir
    - Pump
    - Pressure relief valve
    - Filter
    - Cooler
    - Vent lines
    4. CORRECT: 
  16. A pump used in dry-sump lubrication systems to return oil from the crankcase to the reservoir
    1. CORRECT: 
  17. A system where the oil is stored in a reservoir separate from the engine
    2. CORRECT: 
    4. INCORRECT: 
  18. - Depth filtration
    - Semi-depth filtration
    - Surface Filtration
    - Edge Filtration
    2. CORRECT: 
  19. The number of seconds required for 60 cubic centimetres of heated (210 F) oil to flow through a calibrated orifice
    3. CORRECT: 
  20. - Reduces friction
    - Absorbs heat
    - Seals
    - Cushions
    - Cleans
    - Protects against corrosion
    1. CORRECT: 
  21. A standard used to identify the rate of change in viscosity for a given change in temperature
    4. CORRECT: 
  22. Specially formulated lubricants that provide protection under high loads
    3. CORRECT: 
    4. INCORRECT: 
  23. - SAE (Society of Automotive Engineers) number
    - Commercial aviation number
    - AN specification
    3. CORRECT: 
  24. The temperature at which paraffin wax and other solids normally held in a solution of oil begin to solidify and separate into tiny crystals
    3. CORRECT: 
  25. A valve that maintains a higher system pressure when the oil is cold; then, after it warms, the valve automatically lowers pressure to the normal operating range
    4. CORRECT: 
  26. An oil filtering system that filters all of the oil passing through the system
    2. CORRECT: 
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1 comment:

  1. Clothing Store24 June 2021 at 06:17

    Thank you for sharing. It is important to lubricate the machine and engine from time to time. You can also save time and energy by choosing self-lubricating machinery parts
    Get lubricants oil myanmar, certified by the National Lubricating Grease Institute (NLGI) for automotive. Visit us now!

    ReplyDelete

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