(7) METRIC PRACTICE FOR WELDING INSPECTION Flashcards
Q7-1
A 50.0 lb can of welding electrodes weighs how many kg?
a. 227 kg
b. 25 kg
c. 22.7 kg
d. 23 000 kg
e. none of the above
Q7-1
A 50.0 lb can of welding electrodes weighs how many kg?
c. 22.7 kg
Q7-2
A weld joint is measured and found to be 345 mm long. How long is that joint in terms of in?
a. 135 in.
b. 13.58 in
c. 8760 in
d. 876 in
e. 13.0 in
Q7-2
A weld joint is measured and found to be 345 mm long. How long is that joint in terms of in?
b. 13.58 in
Q7-3
What is the wire feed speed that is measured to be 175 in/min?
a. 0.070 m/s
b. 74.0 mm/s
c. 7.4 mm/s
d. 70 mm/s
e. 75 mm/s
Q7-3
What is the wire feed speed that is measured to be 175 in/min?
b. 74.0 mm/s
Q7-4
Which of the following are the proper base unit(s) for linear measurement in the U.S. system?
a. yard
b. inch
c. foot
d. mile
e. all of the above
Q7-4
Which of the following are the proper base unit(s) for linear measurement in the U.S. system?
E. all of the above
a. yard
b. inch
c. foot
d. mile
Q7-5
What is the base unit (according to AWS) for measuring mass in the SI system?
a. meter
b. kilogram
c. megapascal
d. liter
e. none of the above
Q7-5
What is the base unit (according to AWS) for measuring mass in the SI system?
b. kilogram
Q7-6
A gas flow rate of 30 cfh is what in l/min?
a. 1.4 l/min
b. 14 l/min
c. 140 l/min
d. 64 l/min
e. 640 l/min
Q7-6
A gas flow rate of 30 cfh is what in l/min?
b. 14 l/min
2008 ANSWER KEY—CHAPTER 7 (Some Solutions Provided)
ANSWER KEY—CHAPTER 7 (Some Solutions Provided)
Q7-1 c (pg. 7-6, Table 7.4)
lbs to kg conversion factor is 0.454
0.454 × 50 = 22.7
Q7-2 b (pg. 7-6, Table 7.4)
mm to in conversion factor is 3.937 × 102
345 × 3.937 × 102 = 1358.265 × 102 in on calculator = 13.58
Q7-3 b (pg. 7-6, Table 7.4)
in/minute to mm/s conversion factor is 0.423
175 × 0.423 = 74.025 mm/s on calculator
Q7-4 e (pg. 7-6, Table 7.4)
Q7-5 b (pg. 7-2)
Q7-6 b (pg. 7-6)
cfh to l/min conversion factor is 4.719 × 10–1
30 × 4.719 × 10–1 = 14.157
