NSC Blueprint Reading & Specifications 2 — Questions and Answers
Question 1: On a forklift specification sheet, what does the term 'rated capacity' refer to?
- Maximum speed the forklift can travel
- Maximum load the forklift can safely lift at a specified load center (Correct answer)
- Total weight of the forklift including fuel
- Height of the mast when fully extended
Correct answer: Maximum load the forklift can safely lift at a specified load center
Rated capacity is the maximum load weight a forklift can safely lift at the manufacturer's specified load center distance.
Question 2: In a warehouse blueprint, what does a dashed line typically represent?
- A structural wall
- A hidden or overhead feature not visible from the plan view (Correct answer)
- A fire exit route
- A forklift travel path
Correct answer: A hidden or overhead feature not visible from the plan view
Dashed lines in blueprints indicate features that are hidden from view, such as overhead structures or items below the cutting plane.
Question 3: What is the standard load center distance used by most forklift manufacturers in the US when rating capacity?
- 12 inches
- 24 inches (Correct answer)
- 36 inches
- 48 inches
Correct answer: 24 inches
The standard load center used by most US manufacturers is 24 inches from the face of the forks to the center of gravity of the load.
Question 4: When reading a facility blueprint, the symbol for a floor drain is most commonly shown as:
- A solid filled circle
- A square with an X through it
- A circle with internal lines indicating a grate (Correct answer)
- A triangle pointing downward
Correct answer: A circle with internal lines indicating a grate
Floor drains are typically represented on blueprints as a circle with interior lines suggesting a grate or drain cover.
Question 5: A forklift data plate shows a capacity of 5,000 lbs at a 24-inch load center. If the actual load center is 36 inches, the safe capacity will:
- Remain the same at 5,000 lbs
- Increase because the load is more balanced
- Decrease below 5,000 lbs (Correct answer)
- Double to 10,000 lbs
Correct answer: Decrease below 5,000 lbs
Moving the load center farther from the forks increases the overturning moment, reducing the safe lifting capacity below the rated value.
Question 6: On a blueprint, a scale of 1/4" = 1'-0" means:
- Every quarter inch on the drawing equals one foot in real life (Correct answer)
- The drawing is one-fourth the actual size
- Every inch on the drawing equals four feet in real life
- The building is four times larger than shown
Correct answer: Every quarter inch on the drawing equals one foot in real life
A scale of 1/4" = 1'-0" means each quarter inch measured on the blueprint represents one actual foot of the building.
Question 7: Which section of a forklift operator's manual would contain the turning radius specification?
- Safety warnings section
- Maintenance schedule section
- Technical specifications section (Correct answer)
- Parts catalog section
Correct answer: Technical specifications section
Turning radius and other performance parameters are listed in the technical specifications section of the operator's manual.
NSC Blueprint Reading & Specifications 2
On a forklift specification sheet, what does the term 'rated capacity' refer to?