Free FCTC Knowledge Question and Answers 1 — Questions and Answers
Question 1: 1 vertical foot = 0.433 psi <br> 1 psi = 2.31 vertical feet
- Calculating the head pressure difference between an intake and an output using a formula (Correct answer)
- Speed, torque, and power in relation to one another:
- The gear train, also known as the "transmission,"
- None of the above
Correct answer: Calculating the head pressure difference between an intake and an output using a formula
The provided information gives conversion factors between 'vertical foot' and 'psi' (pounds per square inch). These units are directly used in fluid mechanics to calculate head pressure, which is the pressure exerted by a column of fluid. Therefore, these conversions are specifically for 'Calculating the head pressure difference between an intake and an output using a formula'.
Question 2: A belt will typically share two or more pulleys. A mechanical advantage is achieved if the pitch diameters of the pulleys vary. only depends on pitch diameter, not the tooth ratio like with gears and sprockets.
- Class 3 Levers
- Lever Definitions
- Gear Train, or Commonly Called "transmission"
- Belt and Pulley Systems (Correct answer)
Correct answer: Belt and Pulley Systems
The description details how belts and pulleys work together, mentioning their use of two or more pulleys, how mechanical advantage is achieved through varying pitch diameters, and how this differs from gears and sprockets. This entire passage directly defines and explains the characteristics of 'Belt and Pulley Systems'.
Question 3: Class 1 Levers - Effort in the middle, with the fulcrum on the other side from where the resistance resides. Always less than 1, for example: a pair of tweezers, a human mandible.
- False (Correct answer)
- True
Correct answer: False
The statement incorrectly describes a Class 1 lever. A Class 1 lever has the fulcrum *between* the effort and the resistance, not the effort in the middle. Furthermore, examples like tweezers and a human mandible are characteristic of Class 3 levers, where the effort is between the fulcrum and the resistance. Also, Class 1 levers can have a mechanical advantage greater than, less than, or equal to 1, not 'Always less than 1'. Thus, the entire statement is false.
Question 4: - Go through one to four essays. <br> - 35 questions in total (including the essay questions at the rear of the test booklet); <br> - only the essay packet may be marked up with notes.<br> - In the first 30 minutes, 15 to 20 questions based on these writings were distributed.
- Gear Train, or commonly called "Transmission"
- Recall and Comprehend Technical Information (Correct answer)
- Belt and Pulley Systems
- Recall and Comprehend Verbal and Visual Information:
Correct answer: Recall and Comprehend Technical Information
The provided bullet points describe instructions and guidelines for taking a test, specifically how to approach essays, questions, note-taking, and time management. This information requires the test-taker to understand and follow specific procedural details, which falls under the skill of 'Recall and Comprehend Technical Information' related to test administration.
Question 5: Class 1, Class 2, Class 3 are?
- Belt and Pulley Systems
- Classes of Levers (Correct answer)
- First Class Lever
- Lever Definitions
Correct answer: Classes of Levers
Class 1, Class 2, and Class 3 are the standard classifications used to categorize different types of levers based on the relative positions of the fulcrum, effort, and resistance. Therefore, they are 'Classes of Levers'.
Question 6: How many gallons will a tank with a 12' diameter hold if it is 4' deep if a tank with a 12' diameter holds 670 gallons per foot of depth?
- 2,680 (Correct answer)
- 2,280
- 2,430
- 3,040
Correct answer: 2,680
To find the total gallons, multiply the given gallons per foot of depth by the actual depth of the tank. The tank holds 670 gallons per foot of depth and is 4 feet deep. So, 670 gallons/foot * 4 feet = 2680 gallons. This calculation directly yields the total volume the tank will hold.
Question 7: What's the total volume of a cylinder with a 3' radius and a height of 7'?
- 197.82 cubic feet (Correct answer)
- 188.52 cubic feet
- 197.82 square feet
- 188.52 square feet
Correct answer: 197.82 cubic feet
The volume of a cylinder is calculated using the formula V = π * r^2 * h, where 'r' is the radius and 'h' is the height. Given a radius of 3' and a height of 7', the calculation is V = π * (3')^2 * 7' = π * 9 sq ft * 7 ft = 63π cubic feet. Using π ≈ 3.14159, the volume is approximately 197.92 cubic feet, making 197.82 cubic feet the closest option. The units must be cubic feet for volume.
Free FCTC Knowledge Question and Answers 1
1 vertical foot = 0.433 psi
1 psi = 2.31 vertical feet