Weld processes used for welding aluminum are: A) GMAW B) RSW ...

[ARLKQ]

Weld processes used for welding aluminum are:
 
  A) GMAW B) RSW C) GTAW D) All of the above

Question 2

How does soot accumulation on the inside of the heat exchanger affect system efficiency?
 
  A) The soot increases the heat exchanger internal resistance, thereby increasing efficiency
  B) The soot acts like an insulator on the inside of the heat exchanger, thereby reducing efficiency
  C) The soot acts like an insulator on the inside of the heat exchanger, thereby increasing efficiency
  D) The soot provides extra fuel during the high fire stage, thereby increasing efficiency

[vickybb89]

Answer to Question 1

D

Answer to Question 2

B

[ARLKQ]

Thanks for the timely response, appreciate it

[elyse44]

Excellent