The magnetic field of the stator is: The same polarity as the rotor magnetic field. Always oriented to the north. Opposite in polarity as the rotor magnetic field. Permanently set at the factory.

What PPE are you most likely to need when using electric tools? Respirator Protective boots Face shield Hard hat

What should you do if you need to cut a small piece of metal? Hold it with your hands Use a different tool Balance it with another piece of the same thickness Cut it without clamping

You're doing maintenance on a tool, but some of the guards are in your way. What should you do? Call in an expert to perform the maintenance. Ask a coworker for advice. Keep the guards on and only do maintenance on parts you can reach. Lock out the power source and remove the guards to do the maintenance.

How do engineers assure design goals, objectives, parameters and constraints are met? Seeking outside help Referring to previous designs Seeking perfection Making improvements and iterating

Which one of these should be part of your job as a worker? Training others on electrical hazards Alerting others to hazards you notice Regulating access to electrical closets Protecting others from arc flashes

Which of these is safe to work with? Active powerlines A well-maintained, older high-voltage power tool Open outlets on a rainy day Wiring with gaps in the rubber coating

The new ASTM standards for footwear specify that it should: Be impact and compression resistant at the toe Reduce electrical conductivity to avoid static that could cause ignition of flammable gases Be puncture resistant All of the above

How are heat pumps identified? Select one: A. By their refrigerant type B. By their air intake pump C. By their cooling source and cooling sink D. By their heat source and heat sink

How can you lower the temperature at which evaporation takes place? Select one: A. Reduce the pressure on the low side of the system. B. Decrease the pressure on the high side of the pump. C. Add more refrigerant into the pump. D. Raise the pressure on the low side of the pump.

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