Describe pictorial dimensioning rules.
What will be an ideal response?
Essentially, the same basic rules for dimensioning a pictorial sketch are followed as for a multiview drawing. The basic pictorial dimensioning rules apply to both the aligned and unidirectional dimensioning systems.
STEP 1 Dimension and extension lines are drawn parallel to the pictorial planes.
STEP 2 Dimensions are placed on visible features whenever possible.
STEP 3 Arrowheads lie in the same plane as extension and dimension lines.
STEP 4 Notes and dimensions are lettered parallel with the horizontal plane.
Because a pictorial drawing is a one-view drawing, it is not always possible to avoid dimensioning on the object, across dimension lines, or on hidden surfaces. Effort should be made to avoid these practices. This will prevent errors in reading dimensions or interpreting particular features of the part(s).
You might also like to view...
The line of measurement must be ____________________ to the beam of the caliper and lie in the same plane as the caliper.
Fill in the blank(s) with the appropriate word(s).
While having a discussion, Technician A says that accidental contamination of the brake hydraulic system with oil can cause serious damage to the rubber parts in some brake systems. Technician B says that accidental contamination with transmission fluid is what can cause this damage. Who is correct?
A. A only B. B only C. Both A and B D. Neither A nor B
The three phases of diesel ignition include ________
A) Glow plug ignition, ignition delay, controlled combustion B) Slow burn, fast burn, slow burn C) Ignition delay, rapid combustion, controlled combustion D) Glow plug ignition, fast burn, slow burn
A low pitch rumble over 20 MPH (32 km/h) is likely caused by a worn or defective ________.
a. Incorrect backlash or pinion depth b. Worn carrier bearings c. Incorrect gear oil or worn limited slip clutches d. Worn u-joints