Which component of an engine lubricating system indicates the level of oil?

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RRB ALP Mechanic Diesel 21 Jan 2019 Official Paper (Shift 1)
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  1. Oil cooling device
  2. Dipstick
  3. Oil pump
  4. Oil hose

Answer (Detailed Solution Below)

Option 2 : Dipstick
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Detailed Solution

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Explanation:

Oil level indicator:

  • It is a steel stick graduated at the front end for measuring the level (amount) of oil in the sump.
  • The graduations “Full”, “Half”, and “Low” marks are provided on the bottom end of the dipstick.
  • These marks show whether the oil is up to the required full or half level or the level is so low.
  • The low oil level may cause danger to engine life.
  • For measuring the oil level, remove the stick from the engine, clean and dipped into the oil sump, and again take it out to see if graduation oil has stuck.

Oil pumps:

  • The oil pump is used to pump oil from the oil sump to the oil galleries at a certain pressure.
  • It is located in the crankcase and is driven by the camshaft.
  • Four types of oil pumps are used:
    • Gear-type oil pump
    • Rotor-type oil pump
    • Vane-type oil pump
    • Plunger-type oil pump

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