Heat is given off from a high temperature region known as a heat sink
Heat transfer rate is affected most by the size of the heat sink involved
Heat transfer rate is affected most by the temperature difference between the heat source and the heat sink
Heat transfer by radiation will occur only by mass motion of a fluid substance
第1题:
Which of the following statements represents the function of the compression rings installed at the top of a diesel Engine piston?
A.Control the amount of lube oil burned in the combustion chamber
B.Transmit heat from the piston to the cylinder liner
C.Prevent damage to ring groove inserts by acting as a heat dam
D.Dissipate combustion chamber gas pressure by channeling it through the ring gap
第2题:
Which of the following statements about ORACLE is (are) correct?
Ⅰ.ORACLE follows SQL standard
Ⅱ.ORACLE database defines two logical types: table and view
A.Ⅰonly
B.Ⅱ only
C.Ⅰ and Ⅱ
D.none of the above
第3题:
15 Which of the following statements about intangible assets are correct?
1 If certain criteria are met, research expenditure must be recognised as an intangible asset.
2 Goodwill may not be revalued upwards.
3 Internally generated goodwill should not be capitalised.
A 2 and 3 only
B 1 and 3 only
C 1 and 2 only
D All three statements are correct
第4题:
c=d
l and k are parallel
m and l are perpendicular
第5题:
Which of the following statements concerning intellectual property is wrong?()
第6题:
Which of the following statements about the warm-blooded mammals is true according to the text?
A. They can change their environments.
B. They can adjust body heat to keep their ideal temperature.
C. They can make food from chemicals.
D. They get most of their heat from the environment.
第7题:
In HDLC Protocol, when Supervisory Frame's type code is '00'.About the following statements, which is correct.
A.Receive Ready
B.Receive not Ready
C.Reject
D.Selective Reject
第8题:
19 Which of the following statements about intangible assets in company financial statements are correct according
to international accounting standards?
1 Internally generated goodwill should not be capitalised.
2 Purchased goodwill should normally be amortised through the income statement.
3 Development expenditure must be capitalised if certain conditions are met.
A 1 and 3 only
B 1 and 2 only
C 2 and 3 only
D All three statements are correct
第9题:
Energy can be created or destroyed
Energy may not be transformed
The total quantity of energy in the universe is always the same
None of the above
第10题:
Cargoes are any type of goods transported by any type of ships
Cargoes are goods transported in bulk
Cargoes usually include goods transported in bulk and in containers
Cargoes are usually packaged in containers