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6: Review Questions
The most common type of measurements required in the welding field are ____ measurements.
True or False?
Some steel rules have marks that are spaced one-tenth of an inch (0.1″) apart.
A. True
B. False
How many inches of weld are required to weld a 1″ × 4″ rectangular tube to a column, as shown below?
Hint:
What is the perimeter of a 1″ × 4″ rectangle?
How many millimeters are equal to 10″?
How many inches are equal to 1400 mm?
What is the area of a piece of mild steel that measures 24″ × 16″?
What is the area of the parallelogram shown below?
What is the area of a right triangle that measures 8″ high and has a 4″ base?
What is the volume of a box measuring .3 m on each side?
What is the volume of the cabinet shown in the following drawing? Give your answers in cubic inches.
Two pieces of 8″ pipe will be welded together. What is the length of required weld?
Hint:
What is the circumference of a circle with an 8″ diameter? Round to the nearest inch.
A pipeline is being constructed from 36″ diameter pipe. How many inches of weld are required to complete one weld around a 36″ pipe?
Hint:
What is the circumference of a 36″ pipe? Round to the nearest inch.
What is the area of a 36″ diameter pipe? Round down to a whole number.
What is the volume of a pipe that is 100 mm in diameter and 1000 mm in length? Round to the nearest whole cubic millimeter.
A welder is asked to cut and weld an angle iron brace to support an 8′ high steel fence. As shown in the following drawing, the bottom of the brace is to be 4′ from the fence. To what length should the welder cut the brace?
Hint:
Use the Pythagorean theorem to determine the length of the hypotenuse of a triangle with one side of 8′ and the second side 4′. Round to two decimal places.
Refer to Figure 6-17 to answer Questions 16–19.
What is the metric equivalent of an electrode with a 70,000 pound tensile strength?
A gas metal arc welding process deposits 9 lbs/hr. How many kg/hr is this?
A welding process has a travel speed of 12 mm/sec. How many inches/minute is this? Round to the nearest whole number.
A spool of gas metal arc welding wire weighs 45 pounds. What is the mass in kilograms? Round the answer to one decimal place.
A welding project is estimated to complete in 17 hours. A welder makes $18.75/hour. What is the cost of the welding labor?
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