Insufficient preheat during an oxyfuel cutting operation is likely to result in _____.
a. the top surface melting over the cut
b. bad gouging at the bottom of the cut
c. a pronounced break in the drag line
d. a wavy and irregular kerf
b. bad gouging at the bottom of the cut
You might also like to view...
One of the major U.S. organizations that deals with sustainable architectural design is
A) USEBC. B) USFBC. C) USHBC. D) USGBC. E) none of the above.
A typical crew member’s workday includes all of following activities except _____.
a. announcing random maintenance checks b. waiting for tools, equipment, and materials c. working at trades other than their own d. planning, discussing, and laying out
Which type of sealer is to be used on non-machined surfaces?
A) Anaerobic sealer B) RTV C) Either A or B D) Neither A nor B
Which of the following did Harry Nyquist in 1928 first demonstrate mathematically?
A. An analog signal can be reconstructed from periodic samples. B. Pulses can be time-division multiplexed over a single communication channel. C. The sample rate must be at least twice the highest frequency of the intelligence or information signal to be sampled. D. Analog signals are quantized to the closest binary value provided in the digitizing system.