Due to the nature of the control circuit of the electrical and mechanical interlocking system, it is impossible for the reverse contacts to close until the ____________________ contacts are open.
Fill in the blank(s) with the appropriate word(s).
forward
You might also like to view...
Throughout history, builders consider these _____ as the root of construction.
a. basic skills, training, and supervision b. project commissions, materials, and available land c. timber, fertile soil, and demand d. technology, labor, and materials
If a job is delayed due to late delivery of materials, the crew leader should _____.
a. demand a discount from the supplier to compensate for the delay b. get in the habit of checking with the supplier in advance of the scheduled delivery c. contact the home office and advise them to drop the supplier from their list d. refuse the late delivery and re-order the materials from another supplier
What are the advantages of wheel-contact lifts?
What will be an ideal response?
Explain the term pulse width.
What will be an ideal response?