Pilot-duty overloads operate like: Relays. Contactors. Motor Starters. All of these.
Match the basic components of a nuclear reactor with their descriptions. 1. slows down neutrons 2. absorb emitted neutrons 3. mass of unstable atoms 4. concrete and lead enclosure 5. energy transfer medium square moderator square control rods square nuclear fuel square coolant square shield
When you're about energize a electrical breaker you should stand right in front of the gear. True False
Heavy duty relays are not suitable as switching relays because they have: Larger contacts with more resistance. Smaller contacts with more resistance. Smaller contacts with less resistance. Larger contacts with less resistance.
What should you check in the fuel system during maintenance? A) The air filter B) The spark plugs C) The fuel lines D) The transmission fluid
Which type of compressor does not have mechanically separated inlet and discharge ports? Centrifugal Dry-rotary screw Sliding vane Wet-rotary screw
The use of different steel strengths, aluminum, or other materials affects the collision-energy management of the vehicle structure. A) True B) False
After a system has been properly balanced, how often should balancing dampers be adjusted? a. Every 5 years. b. Every 3 years C. Annually d. Once properly balanced the balancing dampers should never have to be touched again.
How is the spool two-way valve similar to the poppet two-way valve? Spring offset position blocks air flow Valves are normally open Valve actuation closes air flow paths Spools are positioned off center
Three-way valves can be used to select between two: Air supplies End springs Valve ports Path spools
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
