題庫總數:10
是非題:0
選擇題:10 (A:2、B:2、C:3、D:3)
多選題:0
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Q r Which of the following compounds is used as a smoke source for the smoke pattern test of BSCs
  o Tetrachloromethane
  d Fluorine tetrachloride
v d Titanium tetrachloride
  a Tetrachlorethylene
  y   r.o.d.d.a.y.e.y.e.
Q e To filter a minimum of 0.3μm particles, how efficient should a HEPA filter be?
  y 99.13
  e 99.39
  . 99.69
v r 99.99
  o   r.o.d.d.a.y.e.y.e.
Q d Which of the following actions when operating BSCs is wrong?
  d After use, empty the cabinet.
  a Before use, turn on the BSC for a while.
v y Turn off the BSC immediately after use and take out the items.
  e Wipe workbench with alcohol.
  y   r.o.d.d.a.y.e.y.e.
Q e Among the following National Sanitation Foundation (NSF) standards, which one is the standard for BSCs?
  . NSF29
  r NSF39
v o NSF49
  d NSF59
  d   r.o.d.d.a.y.e.y.e.
Q a When testing  inflow velocity, a minimum of how many readings shall be measured at the sash?
  y 2
  e 3
  y 4
v e 5
  .   r.o.d.d.a.y.e.y.e.
Q r Among the following Class II BSCs, which type has a face velocity of 75 ft/m?
v o A1
  d A2
  d B1
  a B2
  y   r.o.d.d.a.y.e.y.e.
Q e When testing downflow velocity, a minimum of how many readings across the workbench shall be measured in a horizontal plane 10 cm above the bottom edge of the sash?
  y 2X8
v e 3X7
  . 4X6
  r 5X7
  o   r.o.d.d.a.y.e.y.e.
Q d Among the following Class II BSCs, which one does not circulate airflow in the work area?
  d A1
  a A2
  y B1
v e B2
  y   r.o.d.d.a.y.e.y.e.
Q e Which of the following chemicals can be used for the HEPA filter leak test?
v . PAO
  r SiO2
  o H2O2
  d MgO
  d   r.o.d.d.a.y.e.y.e.
Q a Which of the following information is not included in a regular BSC test report?
  y HEPA filter leak test
v e Cabinet integrity test
  y Inflow velocity test
  e Smoke pattern test
  .   r.o.d.d.a.y.e.y.e.
  r  
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