The major reasons for false indications in dye penetrant tests are rough, irregular surfaces of the test metal and
failure to _____.
a. stain properly
b. apply the penetrant correctly
c. draw the penetrant out of the sample
d. highlight the cracks properly
b
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The multi meter will have an ammeter setting and if set to check amps:
a. the red lead is moved and both leads are connected in parallel with the load b. the black lead is moved and both leads are connected in series with the load c. the red lead is left out and the black lead becomes an inductive pick up d. the red lead is moved and the leads are connected in series with the load
Wool fibers are untangled and laid out parallel to each other in a process called ____________________.
Fill in the blank(s) with the appropriate word(s).
Technician A says that an oxygen sensor produces a voltage output signal based on the oxygen content of the exhaust stream. Technician B says that if the exhaust has little oxygen the voltage of the oxygen sensor will be close to 0 volts. Which technician is correct?
A) Technician A only B) Technician B only C) Both technicians D) Neither technician
What is the total current possible leaving Vref on a 4-bit R/2R Ladder DAC if the reference voltage is 4 V and R is 10 k??
A) 400 ?A B) 250 ?A C) 500 ?A D) 375 ?A