List some contaminants that may be found in an oil sample.
What will be an ideal response?
Contaminants that may be found in an oil sample include; iron, copper, tin, lead, zinc, silica (dust), and water. Other items of interest reported in an oil analysis include; pH, viscosity, and additive levels.
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The moment of inertia of the girder in Figure P7.24 is twice that of the column. If the vertical deflection at D is not to exceed 1 in. and if the horizontal deflection at C is not to exceed 0.5 in., what is the minimum required value of the moment of inertia? E = 29,000 kips/in. 2 . The elastomeric pad at B is equivalent to a roller. Solve by the moment-area method. EI is constant.
Several voice channels transmitted on one coax cable in both directions at the same time using
A) shunt LC filters B) low-frequency filters C) frequency separation filters D) high-frequency filters
On a certain job, a sum of $438 is spent for materials. Of this amount, $76 is spent for 1-inch conduit, and $105 is spent for cable. How much money is spent for other materials?
Fill in the blank(s) with the appropriate word(s).
The two types of feedback loops used by a flux vector drive are __________.
A. linear position B. rotary position C. current D. speed E. both c and d