Assume an insulated vessel has a circumference of 62' (18.9 m) and a tan-tan height of 33'– 9" (10.3 m). There will be 8 sections per course with 3" (8 cm) overlaps at the seams. Estimate the total number of 48" (1.22 m) roll jacket sections needed to cover the sidewall.
a. 32
b. 48
c. 72
d. 96
c. 72
Since the number of jacket sections per course is already given, only the number of
courses needs to be determined.
Visible width of jacket is 48" – 3" = 45"
Divide the tan-to-tan height by 45":
33' 9" = 405"
405" ÷ 45" = 9 courses.
Total number of sections = 9 courses x 8 sections per course = 72 sections.
You might also like to view...
The point at which avalanche breakover occurs in a diode is known as the _____.
a. forward bias b. forward peak voltage c. peak inverse voltage d. gate voltage
Two biological hazards are ______________ and _____________.
Fill in the blank(s) with the appropriate word(s).
Mass starvation can occur during periods of overpopulation
a. True b. False Indicate whether the statement is true or false
Technician A says that the gear ratios of both differentials are the same in a four-wheel-drive vehicle. Technician B says that the rear differential has a slightly higher ratio (lower number) than the front differential. Which technician is correct?
A) Technician A B) Technician B C) Both technicians D) Neither technician