Answer the following statements true (T) or false (F)
1. Caps may be threaded, glued, or welded.
2. If there is any doubt about whether any elements can be used for a particular job, a process technician should not use the element.
3. Process technicians have to obtain certification to operate a forklift.
4. A pipe wrench can be used as an alternative to a valve wheel wrench.
5. Keeping equipment in top working condition makes the job easier and safer.
1. TRUE
2. False. If a process technician has any doubt about whether any of these elements can be used for a particular job, he or she should consult with a supervisor.
3. TRUE
4. False. Wrench teeth create sharp edges and burrs on a valve wheel that can cut an unprotected hand.
5. TRUE
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Which is normal flow in a cooling coil?
A) Crossflow, which is water in on the entering air side. B) Counterflow, which is water in on the leaving air side. C) Crossflow, which is water in on the leaving air side. D) Counterflow, which is water in on the entering air side.
El Paso Water (EPW) purchases surface water for treatment and distribution to EPW customers from the County Water Improvement District during the irrigation season. A new contract between the two entities resulted in a reduction in future price increases in the cost of the water from 8% per year to 4% per year for the next 20 years. The cost of water next year (which is year 1 of the new contract) will be $260 per acre-ft. Using an interest rate of 6% per year,
(a) Determine the present worth of the savings (in terms of $/acre-ft) to EPW between the old and the new contracts. (b) Determine the total present worth of the savings over the life of the contract if EPW uses 51,000 acre-ft per year. What will be an ideal response?
What causes the nitrogen and the oxygen in the air to combine and form oxides of nitrogen NOX?
A) Sunlight B) Heat above 2500°F (1370°C) C) Any spark D) Chemical reaction in the catalytic converter
Which of the following best describes how a diode functions in an electrical circuit?
A. current amplifier B. voltage amplifier C. relay switch D. one-way switch