MATHalino.com - Online Engineering Math Reviewer

024 Review Problem - Will the pail hold all the water in the pipe?

Romel Verterra — Thu, 20 Jun 2013 02:27:21 +0000

Problem 24
A pipe of 3/4-in. inside diameter conducts water from a spring to a house 300 ft. distant. It is desired to empty the pipe after the water has been turned off the spring. Will a 10-qt. pail hold the water? (One gal. = 231 cu. in.)

023 Review Problem - Lead pipe melt into a cube

Romel Verterra — Thu, 20 Jun 2013 02:17:26 +0000

Problem 23
It is desired to cut off a piece of lead pipe 2 in. in outside diameter and 1/4 in. thick, so that it will melt into a cube of edge 4 in. How long a piece will be required?

022 Review Problem - Tin required to create a funnel

Romel Verterra — Thu, 13 Jun 2013 14:23:02 +0000

Problem 22
How many square feet of tin are required to make a funnel, if the diameters of the top and bottom are 28 in. and 14 in., respectively, and the height is 24 in.?

021 Review Problem - Finding the volume of a stone

Romel Verterra — Thu, 13 Jun 2013 08:35:27 +0000

Problem 21
A stone is dropped into a circular tub 40 in. in diameter, causing the water therein to rise 20 in. What is the volume of the stone?

020 Review Problem - Volume of a factory chimney

Romel Verterra — Thu, 13 Jun 2013 08:20:29 +0000

Problem 20
A factory chimney has the shape of a frustum of a regular pyramid. Its height is 180 ft., and its upper and lower bases are squares whose sides are 10 ft. and 16 ft., respectively. The cross section of the flue is a square whose side is 7 ft. How many cubic feet of material does the chimney contain?

019 Review Problem - Which buy is more economical?

Romel Verterra — Thu, 13 Jun 2013 07:58:37 +0000

Problem 19
A druggist sells a certain kind of powder in a rectangular box 4 by 2 by 1 in. for 25 cents, and in a cylindrical can 2½ in. high and 2½ in. in diameter for 10 cents. Which is the more economical buy?

018 Review Problem - Volume of Stone Bridge

Romel Verterra — Mon, 13 May 2013 10:48:09 +0000

Problem 18
A stone bridge has three equal semicircular arches resting on four equal rectangular piers. The radius of each arch is R, the dimensions of the piers L, W, H, while the distance from the top of each pier to the top of the bridge is D. If L = 50 ft., W = 5 ft., H = 10 ft., R = 6 ft., D = 12 ft., find the number of cubic yards of material used in building the bridge.

017 Review Problem - Mammoth Dredges Used in Panama Canal

Romel Verterra — Mon, 13 May 2013 10:30:48 +0000

Problem 17
Assuming that a city has 400 miles of water pipes and that the average diameter of the pies is 1 ft., how much water is required to fill this entire system?

016 Review Problem - Mammoth Dredges Used in Panama Canal

Romel Verterra — Mon, 13 May 2013 10:22:37 +0000

Problem 16
Each of mammoth dredges used in digging the Panama Canal had a dipper the capacity of which was 15 cu. yd. If the height of the dipper was 10 ft. 9½ in., what was the area of the bottom?

015 Review Problem - Volume of spherical shell

Romel Verterra — Wed, 20 Mar 2013 23:42:00 +0000

Problem 15
A spherical shell 2 in. thick has an outer diameter of 12 in. Find the volume of the material of which it is made.