?The high frequency may be set so that it ______________for DC and ________________ for AC.

A. ?automatically cuts off after the arc is established; is kept on continuously
B. ?is kept on continuously; goes off
C. ?is kept on continuously; automatically cuts off after the arc is established
D. ?automatically cuts off; goes off after one minute


Answer: A

Trades & Technology

You might also like to view...

One group barred from membership in the Knights of Labor was

A. African Americans. B. "nonproducers" such as liquor dealers, professional gamblers, lawyers, bankers, and stockbrokers. C. women. D. immigrants. E. unskilled workers.

Trades & Technology

In the diagram, which region had the least amount of enery consumption?

Fill in the blank(s) with the appropriate word(s).

Trades & Technology

The percentages of which soil components represent the minimum information necessary in order to determine the textural class of a soil?

A) gravel and sand B) clay and organic matter C) sand, silt and clay D) silt and sand E) clay, water and air

Trades & Technology

Five identical vehicles come into the shop. The first one requires 625 feet of 12-inch paper to mask it. How many rolls of 12-inch paper will be needed if each roll has 750 feet?

What will be an ideal response?

Trades & Technology