A ____ degree angle or less to the plate surface prevents air from being pulled into the welding zone behind the rod.
A. 15
B. 20
C. 25
D. 30
Answer: A
Trades & Technology
You might also like to view...
Unicode offers up to ____ characters.
A. 256 B. 512 C. 16,384 D. 65,536
Trades & Technology
A fixed-orifice tube ________
A) Has an internal valve B) Has a pressure sensing capability C) Has a temperature sensing capability D) Is usually located in the evaporator inlet or line to the evaporator
Trades & Technology
How often should a renewable media, pleated surface be changed?
A) Weekly B) Quarterly C) Once or twice a year D) Monthly
Trades & Technology
Consider the parallel springs shown in the accompanying figure. Realizing that the deflection of each spring in parallel is the same and the applied force must equal the sum of forces in individual springs, show that for springs in parallel the equivalent spring constant ke is
ke = k1 + k2 + k3
Trades & Technology