Free AFCT Assembling Objects Questions and Answers 1 — Questions and Answers
Question 1: You are given a threaded bolt, a hex nut, and two flat washers to join two metal plates. What is the correct assembly order?
- Bolt -> Plate 1 -> Plate 2 -> Washer -> Nut -> Washer
- Bolt -> Washer -> Plate 1 -> Plate 2 -> Washer -> Nut (Correct answer)
- Washer -> Bolt -> Plate 1 -> Plate 2 -> Nut
- Bolt -> Plate 1 -> Washer -> Plate 2 -> Nut
Correct answer: Bolt -> Washer -> Plate 1 -> Plate 2 -> Washer -> Nut
The bolt head needs a washer to distribute its pressure on the first plate. The bolt then passes through both plates, followed by the second washer and the nut. The washers protect the surfaces of the plates and ensure even clamping force.
Question 2: A diagram shows three gears in a line. The first gear (driver) rotates clockwise. It meshes with the second (middle) gear, which in turn meshes with the third gear. In which direction does the third gear rotate?
- Counter-clockwise
- It does not rotate
- Clockwise (Correct answer)
- It alternates directions
Correct answer: Clockwise
When two external gears mesh, they rotate in opposite directions. The first gear (clockwise) turns the second gear counter-clockwise. The second gear (counter-clockwise) then turns the third gear in the opposite direction, which is clockwise.
Question 3: The parts for a simple pulley are shown: a wheel with a groove (sheave), a U-shaped bracket with holes at the ends, and a pin (axle). How do these parts assemble correctly?
- The pin goes through the bracket, and the wheel attaches to the outside of the bracket.
- The wheel is placed inside the bracket, and the pin is inserted through the bracket and wheel. (Correct answer)
- The pin is attached to the wheel first, and the assembly is then clipped into the bracket.
- The bracket is clamped onto the side of the wheel with the pin.
Correct answer: The wheel is placed inside the bracket, and the pin is inserted through the bracket and wheel.
The U-shaped bracket serves as the housing. The wheel (sheave) must be placed between the two arms of the bracket. The pin is then inserted through the hole on one arm, through the center of the wheel, and out the hole on the other arm, acting as an axle for the wheel to spin on.
Question 4: You are assembling a simple lamp. The parts are a heavy base, a long threaded tube, a harp (shade holder), and a socket for the bulb. What is the correct assembly order from the bottom up?
- Base -> Harp -> Tube -> Socket
- Socket -> Tube -> Base -> Harp
- Base -> Tube -> Socket -> Harp (Correct answer)
- Tube -> Base -> Harp -> Socket
Correct answer: Base -> Tube -> Socket -> Harp
The assembly starts with the foundation. The heavy base provides stability, the threaded tube screws into it to create the lamp's body, the socket attaches to the top of the tube for the electrical components, and finally, the harp clips onto the socket to hold the lampshade.
Question 5: A diagram shows a disassembled C-clamp. The parts are a C-shaped frame, a long threaded rod with a handle, and a swiveling pad. How does it assemble?
- The rod is inserted from the top of the frame, and the handle is attached.
- The threaded rod screws through a hole in the bottom of the C-frame. (Correct answer)
- The swiveling pad is welded to the inside of the frame's top arm.
- The handle is attached directly to the frame to move the rod.
Correct answer: The threaded rod screws through a hole in the bottom of the C-frame.
The C-frame has a fixed anvil on its top arm and a threaded hole on its bottom arm. The threaded rod is screwed through this hole, allowing it to move towards or away from the fixed anvil. The handle remains on the outside to turn the rod, and the swiveling pad is on the end that makes contact with the workpiece.
Question 6: You are shown parts to make a small cart: a flat platform, two axles, and four wheels. How would these be assembled for the cart to roll properly?
- Attach one axle to the top of the platform and one to the bottom.
- Attach the two axles under the platform, parallel to each other. (Correct answer)
- Attach the two axles in an 'X' shape under the platform.
- Attach all four wheels directly to the corners of the platform without axles.
Correct answer: Attach the two axles under the platform, parallel to each other.
For a stable, rolling cart, the axles must be attached parallel to each other underneath the platform. A wheel is then attached to each end of both axles. This configuration ensures all four wheels are aligned and can rotate together to move the cart in a straight line.
Free AFCT Assembling Objects Questions and Answers 1
You are given a threaded bolt, a hex nut, and two flat washers to join two metal plates.
What is the correct assembly order?