Un signo de baja carga de refrigerante en un refrigerador es: Se acumula la helada prematura con los puntos calientes en la bobina del evaporador El compresor funciona más silencioso de lo habitual y se pone muy caliente Los dos de los anteriores Ninguno del los anteriores

What's a good height for the installation of a duplex receptacle in a bathroom or laundry? 24 in. 40 in. 36 in. 48 in.

Which device, after it clears an overload, is not able to be reset? a. Fuse b. Insulated case circuit breaker c. Molded case circuit breaker d. Power circuit breaker

What is the FIRST step in the servicing of valves? to cut off service to identify the problem to determine the cause: to efficiently make the repair

An occupancy sensor can be used to control lighting loads so they operate only when a room is occupied. True False

As a safety measure when starting a gas furnace, you should position yourself: Select one: A. In any position so long as you are not touching the furnace. B. Off to the side of the furnace access cover. C. Directly in front of the burners in order to observe the lighting sequence. D. In front of the furnace access cover.

On electrical plans.graphic symbols indicate the exact locations of electrical equipment such as switches and receptacles and are drawn to scale. True False

Which statement about models in science is true? Models are only used by scientists. Models never change. Models change to accommodate new discoveries. Models are only used by engineers.

When you move a rough terrain forklift and your view is obstructed you should travel with the load __ or use a spotter. High Off-center Sideways Trailing

Select the choice that best answers the following question. What results when a flow control valve directs fluid to return to the reservoir (called the bleed-off method)? a) Gain in temperature b) Loss of flow rate pressure c) Loss of flow rate accuracy d) Gain in flow rate

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