In the ____ position, the pipe is fixed in a 45 degree inclined angle, and the weld is made around the pipe.
A. Inclined with a restriction ring 6GR
B. Horizontal fixed 5G
C. Vertical 2G
D. Inclined 6G
Answer: D
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Express 7/18 as a decimal fraction. Round to the nearest hundredth.
Reduce all fractions to their simplest forms. Convert all improper fractions to mixed numbers. Provide answers in the following format: Fraction: 3/4 Mixed number: 1 5/8
From a fixed point on the ground, the distance to a certain tree is measured to be s = 55.2 ± 0.1 m and the angle from the point to the top of the tree is measured to be ? = 0.50 ± 0.02 radians. The height of the tree is given by h = s tan ?.
a. Estimate h, and find the uncertainty in the estimate. b. Which would provide a greater reduction in the uncertainty in h: reducing the uncertainty in s to 0.05 m or reducing the uncertainty in ? to 0.01 radians
_____ express the number of turns the drive gear makes compared to one turn of the driven gear it mates with.
A. Rotations B. Gear ratios C. Circulations D. Combinations
Skin exposure to concrete or mortar can cause _____
a. silicosis b. scoliosis c. cement dermatitis d. osmosis