Review: Special Measuring Devices, Tables, Ratios And Proportions
10 Questions
| Total Attempts: 70
Questions and Answers
- 1.A scale that is divided where inches or fractions of an inch represent feet.
- A.
Engineer's Scale
- B.
Standard Ruler
- C.
Architect's Scale
- 2.A device used to measure construction drawings. It is divided into 10, 20, 30, 40, 50, or 60 parts.
- A.
Architect's Scale
- B.
Standard Ruler
- C.
Engineer's Scale
- 3.Tables provide comparative values of related _____________ .
- A.
Quantities
- B.
Calculations
- C.
Factors
- 4.Sometimes the number of units to be converted may not be found on a table. When this happens, the answer can be calculated using addition or division
- A.
True
- B.
False
- 5.A pump has to inject 3 ounces of dye into a solution for every 3.5 gallons of that solution. If I need 17.5 gallons of solution, how many ounces of dye will need to be injected into the solution?
- A.
20 oz.
- B.
0.6 oz.
- C.
15 oz.
- 6.Two gears are connected by a chain. A 12 inch gear with 30 teeth drives a 36 inch gear with 90 teeth. How many revolutions will the 12 inch gear complete to turn the 36 inch gear 2 revolutions?
- A.
6 revolutions
- B.
4 revolutions
- C.
2 revolutions
- 7.Two gears are connected by a chain. A 12 inch gear with 30 teeth drives a 36 inch gear with 90 teeth. How many revolutions will the 36 inch gear need to complete to turn the 12 inch gear 10 times?
- A.
3.33 revolutions
- B.
5 revolutions
- C.
30 revolutions
- 8.A 10 inch diameter pulley that spins at 90 rpms is connected, by a belt, to a larger pulley. The larger pulley needs to turn at 20 rpms (revolutions per minute). What does the diameter of the larger pulley have to be in order to turn at 20 rpms?
- A.
2 inches
- B.
45 inches
- C.
36 inches
- 9.A turbine turns at 15,000 rpms. The turbine drives a compressor at a rate of 125 cycles per second. What is the gear ratio of compressor speed to turbine speed?
- A.
2/1
- B.
1.33/1
- C.
120/1
- 10.What is the gear ratio between the diameters of a 54 foot diameter gear rotated by a drive motor with a 36 inch gear?
- A.
54/1
- B.
18/1
- C.
1.5/1
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