You should frequently compare drum-mounted and remote-reading water level indicators_____
A.descriptions
B.discrepancies
C.different
D.deflections
A.descriptions
B.discrepancies
C.different
D.deflections
第1题
A.posting a fire watch in the immediate area
B.providing an extinguisher which is ready for immediate use
C.requiring the fire watch to remain on post for 30 minutes after the completion of welding or burning
D.All of the above
第2题
A.series of baffles
B.crossover pipe
C.condensate separator
D.drain pump
第3题
A.draw a one line diagram of the circuitry
B.test all fuses and measure the line voltage
C.take megger readings
D.insulate the apparatus from ground
第4题
A.thousandth ( 10 to the - 3rd power)
B.millionth (10 to the -6th power)
C.billionth ( 10 to the - 9th power)
D.trillionth (10 to the - 12th power)
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