推 etergo:Q1題目似乎有問題 應該都有 而主要是X-ray 12/10 00:24
※ 編輯: momoSUM 來自: 140.112.171.79 (12/10 10:15)
為了幫實驗室省錢 大家一起來提供答案吧!!!
答對十題以上 就可以有5%折扣!
順便看看自己的知識在哪裡^^
Q1, The disk accreting material that surrounds a black hole shines at all
but one of the following wavelengths. Identify this wavelength.
a) Radio b) X-ray c) Optical d) Gamma
Q2, Transportation accounts for how much of our nation's
use of petroleum?
a) 30% b) 45% c) 60% d) 75%
Q3, Approximately how many gallons of petroleum are burned
each second of each day in the US?
a) 10,000 b) 5,000 c) 12,500 d) 15,000
Q4, Which one of the following elements or compounds most significantly
influences our climate?
a) H2O b) O2 c) CO2 d) NH4NO2
Q5, Which one of the following elements or compounds is most closely
tied with the evolution of the Earth’s physical environment?
a) H2O b) O2 c) CO2 d) NH4NO2
Q6, Which one of the following swimsuit manufacturers used computational
fluid dynamics to design a new swimsuit after the 2000 Summer Olympics?
a) Nautica b) Jantzen c) Speedo d) Nike
Q7, Which of the following is true about RBD’s IG2 backfill ion source
package?
a) It is not compatible with PHI’s 04-161/162 and 20-045.
b) It can't be activated remotely or with a built-in timer.
c) You can’t externally monitor the ion and filament currents, or the beam and focus voltages.
d) It's the lowest-priced backfill ion source package available anywhere.
Q8, What was our company’s old name?
a) It’s always been RBD Instruments
b) RBD Companies Ltd.
c) RBD Enterprises
d) RBD Technical Support Co.
Q9, You can have noisy XPS data:
a) Only when the X-ray source window is coated.
b) In addition to other causes, due to arcing that occurs because
of internal contamination in the X-ray source.
c) Only when your XPS system is not working within defined specifications.
d) Only during electrical storms.
Q10, Which flange sizes are really the same? (The number on the left is
the DN Metric flange size; the number on the right is the Flange
OD in inches.)
a) 16 CF = 2.75 in.
b) 40 CF = 6.0 in.
c) 63 CF = 4.5 in.
d) 16 CF = 4.5 in.
Q11, Now for gaskets… Which of the choices has the correct
corresponding flange size O.D to gasket O.D and gasket I.D.
(The choices represent Flange OD = Gasket OD = Gasket ID)
a) 2.75 = 2.43 = 1.45
b) 3.375 = 2.43 = 2.5
c) 6 = 8.74 = 8.0
d) 1.33 = .85 = .63
Q12, Which of the following Tech Tips isn’t available on our web site?
a) LaB6 Burn-in Procedure
b) Proper Nitrogen Venting
c) Troubleshooting High Voltage Circuits
d) Ion Gun Alignment
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◆ From: 140.112.171.79
※ 編輯: momoSUM 來自: 140.112.171.79 (12/09 17:14)