5. Name three advantages of the tran- sistor over the vacuum tube. 6. What is a photovoltaic cell? 7. What is an LED? 8. What is an integrated circuit? 9. List three advantages of the inte- grated circuit over individual components.

What two parts do most satellites have in common? An antenna and a power source An antenna and a radar dish A power source and an engine A power source and a monitor

3. Imagine you are in a cabin in front of a small fire on a cold winter evening. You feel uncomfortably cold, so you throw another log into the fire. In this scenario, the process variable is temperature. Is this true or false? 4. If the level of a liquid in a tank must be maintained within 5 ft of 50 ft, what is the liquid's setpoint? 1 45 ft 2 55 ft 3 5 ft 4 50 ft Control Theory Basics Activities 5. __ is a sustained deviation of the process variable from the setpoint. 6. A load disturbance is an undesired change in one of the factors that can affect the setpoint. Is this statement true or false?

Why is the drain for condensate water normally trapped? Select one: A. To funnel water to the auxiliary drain B. To trigger the condensate sump pump C. To stop water from standing in the drain pan when the blower is operating. D. To reduce humidity

How much time does it take to pump a lift station from a depth of 11 feet to a depth of 4.5 feet when the lift station has a diameter of 6 feet and pumps 150 gallons per minute? )6 minutes (B) 9 minutes@ C) 15 minutes 1.5 hours 7 If foaming occurs in an aerobic digester, what is the first check the operator should perform? A)Air rate and residual D.O B) Digester loading test C) Initial D.O,and digesterinfluent CBODS D. An analysis for detergents (8) When operating an advanced treatment facility using chemical treatment for solids removal, you discover high flows entering the system.YOU should. A)watch for toxic conditions in the biological treatment process produced by chemical under-dosing B)plan on reducing the sludge removal system from the clarifier. C)Inspect the chemical feeders to determine the chemicals being added do not cause a great increased/'decrease in PH D.)prepare to feed a higher dosage of chemicals. (9) All sulfide will be present in the form of gaseous hydrogen sullide when the ph of the wastewater falls below (A))5.0 (@) B) 6.0 897.0

Multiple Choice 1 point Leaks from the heater core can result in all of the following EXCEPT: coolant being burnt inside the combustion chamber. coolant dripping onto the passenger's side carpet. coolant misting out of the vents. None of the answers listed

When rinsing a regulator it is best to: Leave the regulator attached to the tank or have the dust cap in place Depress the purge button several times Use ionized water Have the first stage lower than the second stage

Besides safety, what else do chainsaw certifications provide focus on? what chainsaw brands make the best chainsaws the math involved in predicting how a tree will fall after being cut the history of chainsaws

In an electrical circuit, what is a node? current path voltage loop connection point battery source

Coasting a machine is very dangerous and should be only attempted if there is no other way to move the disabled vehicle. True False

Hot Questions

Select the choice that answers the question correctly. What should you do when inspecting battery-operated lifts? a) Contact the manufacturer before inspecting b) Open the battery compartment to see if the cells are properly sealed c) Make sure the lift is plugged in during inspection d) Operate the lift before inspecting

Technician A says that the most efficient method of EVAP system leak detection is introducing smoke under low pressure from a machine specifically designed for this purpose. Technician B says that nitrogen gas pressurization uses nitrogen gas under a very low pressure (lower than 1 psi) in the fuel system; you listen for escaping air with amplified headphones. Who is correct? A) Technician A B) Technician B C) Neither Technician A nor B D) Both Technicians A and B

For two single-phase transformers to operate satisfactorily in parallel, they must have the same voltage ratio and __ a. different percent impedances b. different turns ratios c. opposite polarities d. the same percent impedance

Isolated ground receptacle is an insulated grounding conductor that is run from neutral terminal at the main service entrance to the isolated ground terminal on the receptacle. True False

How do we calculate the "Wing Area" of an airfoil? Divide the maximum chord width by the span Multiply the mean camber by the span Divide the span by the average chord width Divide the minimum chord width by the span Multiply the span by the average chord width

A delta-connected three -phase alternator is driving a wye-connected resistive load. The alternator output voltage is 960 V.The load resistors are $12\Omega $ 12 Q each. What is the phase current in the alternator? 80 Amps 26.66 Amps 20 Amps 40 Amps

You should loose the lug nuts one by one in a clockwise position. True False

Question 17 of 32 A scientist is working to develop a new adhesive material. What is the best way for the scientist to accomplish this goal? A. To discuss ideas with scientists who have similar perspectives and training B. To work with a variety of scientists with different ideas and backgrounds C. To share ideas with other scientists but disregard opposing opinions D. To work alone until the material is developed

Cite three examples to describe how an engineer ensures that his or her designs are made to scale.

Which of the following is important for the maintenance of a single piston floating caliper? Front wheel bearing adjustment Positioning of caliper piston Slider to caliper body clearance Caliper to Piston bore clearance