How is engine oil usually cooled?
•  By a fuel/oil cooler.
•  By ram air.
•  By bleed air.

malowth asking:
•  I thought the primary purpose of the fuel/oil heat exchanger was to heat the fuel, and ram air through the oil cooler was the primary oil cooling medium. Any thoughts?

Community comments: 3

A freely falling body, falling from a height of 2km, and assuming g = 10m/s2, will strike the ground in a time of
•  400s.
•  80s.
•  20s.

Asuka16 asking:
•  Can you give me the formula for this?

Community comments: 1

Reheat is the term used to describe
•  adding fuel in the exhaust section.
•  adding of fuel in the turbine section.
•  adding of fuel in the compressor section.

malowth asking:
•  By reheat do you mean afterburner?

Community comments: 3

Simplify (a+b)(a-c)(b-c) divided by (b+a)(c-a)(c-b).
•  -1
•  1
•  (a+b)(a-c)(b-c)

muzammil asking:
•  The first option seems more appropriate here


Community comments: 1

When a volume of air is compressed
•  heat is gained.
•  no heat is lost or gained.
•  heat is lost.

mwongela asking:
•  please someone help me understand how this is. i thought heat is gained?

Community comments: 2

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