4.01-4.03 Ag Mechanics 1

When laying out a building, taking two equal measurements of the diagonal corners means that the four corners are:

• not plumb

• not square

• square

• triangles

When one fails to hold the leveling rod up straight, the measurement will be:

• accurate

• inaccurate

• too short

• too small

To be certain that accurate readings are taken, the bubble in the leveling vial of a farm level should be checked:

• after each reading

• before and after each reading

• every hour

• once a day

If Steve is using a builder's level to lay out a building, the degree reading when the telescope is turned to mark a corner should be:

• 15 degree

• 30 degree

• 45 degree

• 90 degree

When setting up a tripod and a builder's level, the leveling screws should be adjusted until the:

• bubble is centered

• leveling rod is level

• plumb bob hits the ground

• tripod is level

If Abby needs to lay out a building using the 3-4-5 method, what measurement is used with 24' and 30' to make a square corner?

• 18'

• 24'

• 30'

• 60'

The person using a laser beam level for surveying knows that the receiver is on the same grade when a signal is seen or heard from the:

• A lower sensor.

• B middle sensor.

• C rod person.

• D top sensor.

A hidden line that indicates the presence of unseen edges is shown on a drawing by a:

• A heavy solid line.

• B series of dashes.

• C solid line with arrows.

• D solid zigzag line.

If Matthew needs to use a blueprint view that shows the building as if it were cut in two to see the wall parts, he should look at the:

• A elevation views.

• B floor plan.

• C scale.

• D sectional view.

When are mechanical drawings used in construction plans?

• A after the structure is built

• B if a detailed description is needed

• C if a general description is needed

• D when they are affordable