- - AGRICULTURAL CORE CURRICULUM - - (CLF2000) Advanced Core Cluster: AGRICULTURAL MECHANICS (CLF2150) Unit Title: MEASUREMENTS ____________________________________________________________________________ (CLF2199) Topic: UNIT EXAM Time Taught in Year(s) 1 hour 1 /2 /3/ 4 ____________________________________________________________________________ NAME ____________________________ DATE ____________________________ PER. ____________________________ A. True or False 1. _____ No even fractions of an inch exist on a measuring tape. 2. _____ A millimeter is slightly smaller than 1/16 of an inch. 3. _____ A portion of a millimeter is expressed as a common fraction. 4. _____ Most non-metric measures are based on body measurements. 5. _____ Units of measure in the metric system relate to one another by multiples of 5. 6. _____ The diameter of an engine cylinder can be measured with an outside caliper. 7. _____ Finding the perimeter of a field is a cubic measure. 8. _____ Pi, 3.14, is really the ratio of the circumference of a circle to its diameter. 9. _____ Square measure is a system for finding volume. 10. _____ When determining the area of a geometric figure, all linear measure must be expressed in the same unit of measurement. 11. _____ The pound is the basis for marketing most dry agricultural commodities in the U.S. 12. _____ A board foot is a unit of measure for lumber that is 1 inch thick, 12 inches wide, and 12 inches long. 13. _____ A board that is 2 inches thick, 12 inches wide, and 6 feet long will contain 6 board feet. 3 14. _____ The formula, V = s , is used to determine the area of a cube. 15. _____ There are 16 fluid ounces in a pint and 16 ounces in a pound. B. Matching 1. _____ 1,000,000 times the basic unit. a. Hecto- 2. _____ 1,000 times the basic unit. b. Milli- 3. _____ 100 times the basic unit. c. Mega- 4. _____ 10 times the basic unit. d. Centi- 5. _____ 1/10 times the basic unit. e. Kilo- 6. _____ 1/100 times the basic unit. f. Micro- 7. _____ 1/1000 times the basic unit. g. Deci- 8. _____ 1/1,000,000 times the basic unit. h. Deca- C. Multiple Choice 1. Which is the smallest unit of linear measure in the English System? a. Millimeter b. Inch c. Yard d. Meter 2. Which is not a possible reading of a measuring tape? a. 27 3/4 inches b. 2 feet 5 13/16 inches c. 5 feet 3 14/16 inches d. 96 1/8 inches 3. Which is a proper way to express a fraction? a. 1/4 b. .25 c. 25% d. All of the above 4. Which of the following is a perimeter of a circle? a. Radius b. Circumference c. Diameter d. None of the above. 5. To determine the volume of a feed bin, which of the linear measures must be included in the equation? a. Length b. Width c. Height d. a and b e. a, b, and c 6. Which is the formula for the area of a circle? 2 a. A = pi X r 2 b. A = pi X d divided by 4 c. Both a and b. d. None of the above. 7. Which is the formula for the area of a triangle? a. A = 1/2bh b. A = bh/2 c. Both a and b. d. None of the above. 8. Which is the formula for the radius of a circle? a. r = d/2 b. r = C/pi c. Both a and b. d. None of the above. 9. Which liquid measure does not equal 1 gallon? a. 4 quarts b. 8 pints c. 128 ounces d. None of the above. 10. Which is the quickest way to find the perimeter of a square plot? a. P = length + length + width + width b. P = 4 X s c. P = 2 X length + 2 X width d. None of the above. D. Identification of the Parts of a Micrometer 1. _____ Anvil 2. _____ Ratchet Stop 3. _____ Lock Nut 4. _____ Frame 5. _____ Sleeve 6. _____ Thimble 7. _____ Spindle e. g. d. | | a. c. | | __________.-------------. | | | __________________/__\ \ \ | .--._ ____/ \ \\ \ 0___1__\ 20\ \ \___ () |_) ()____) | || | ''''''''|__ | | |__| || | \_/__//__/_________/15 / / / || | b. || = | \ /_________/ / || | | || | "------------" || \ | // / | \\ \ _______// / f. \\ / \\___________/ E. Problem Solving 1. Convert 35 millimeters to centimeters. Answer: ______________ 2. Convert 96 inches to feet. Answer: ______________ 3. What would be the width of a rod which has a reading of .320 on a micrometer with a frame size of 1-to-2 inch? Answer: ______________ 4. What is the reading on the metric micrometer below? Answer: ______________ _____________ / _________________________/_ (Framesize = 0 to 25mm) \ \ _ \ 0 5 \ ___25 Framesize: | |___|___|___|___|___|__|_ Sleeve: | | | | | | | | | | | | ||_ Lines on Sleeve: / /_ Thimble Reading: /_________________________/_ Total: \___20 \_____________ 5. How many square feet are in a barn 40' wide by 80' long? Answer: _____________ 6. How many cubic feet are in a silo that has a diameter of 10' and a height of 20'? Answer: _____________ 7. Calculate the area of a trapezoid-shaped field that has a base of 100', a base of 150', and a height of 50'. Answer: _____________ 8. Calculate the volume of a conical roof of a grain silo that has a diameter of 10' and a height of 5'. Answer: _____________ 9. If 1 cu. ft. equals .8 bushel, how many bushels of corn could fit in the conical roof in question #8? Answer: ______________ 10. How many tons are in a load of gravel weighing 5,500 lbs.? Answer: ______________ Answer Sheet A. True and False B. Matching D. Identification 1. t 1. c 1. a 2. t 2. e 2. g 3. f 3. a 3. d 4. t 4. h 4. b 5. f 5. g 5. e 6. f 6. d 6. f 7. f 7. b 7. c 8. t 8. f 9. f C. Multiple Choice E. Problem Solving 10. t 1. b 1. 3.5 cm 11. t 2. c 2. 8 ft 12. t 3. d 3. 1.320 in 13. f 4. b 4. 5.74 mm 14. f 5. e 5. 3200 sq ft 15. t 6. c 6. 1570 cu ft 7. c 7. 8750 sq ft 8. c 8. 130.83 cu ft 9. d 9. 104.67 bu 10. b 10. 2.75 tons 6/27/91 OLR/tf #%&C