Which of the following statements is true about different efficiencies of a hydraulic motor? The overall efficiency of a hydraulic motor is , as in the case of pumps, equal to the product of the volumetric and mechanica efficiencies The definition of the mechanical efficiency of a hydraulic motor is the same as that of a pump The definition of the volumetric efficiency of a hydraulic motor is the same as that of a pump Volumetric mechanical, and overall efficiency of a motor are always greater the volumetric mechanical, and overall efficiency of a pump, respectively

6. When stopping, the clutch lever is kept fully squeezed after making the stop. A. True B. False

Dial indicators __ a. must be mounted to rigid holding devices b. All of the above. c. are used to center and align work on machine tools and check for eccentricity d. are designed with shockproof movement and jeweled bearings

Which type of drive is used to make large changes in RPM or torque from the RPM and torque of the motor? Select one: A. Direct drive B. Overdrive C. Belt drive D. Gear drive

The temperature measurement of the air entering the air intake grille is called: Select one: A. Supply-air temperature. B. Ambient temperature. C. Return-air temperature. D. Approach temperature.

The correct tension for any belt drive application is: Select one: A. Tight enough so that it does not slip on startup. B. 1/64-inch deflection per 1-inch span between drive shaft and driven shaft. C. The minimum tension required to keep the belt from slipping at its maximum torque. D. All of the these are indicators of correct tension.

Select the correct answer for the following question. Which of the following is false regarding safeguards & feeding and ejection? a) Ejection methods may be performed by robots b) Stock is fed from rolls or chutes during feeding methods c) Robots are not to be used during ejection methods d) Does not require the operator to place his or her hand in the danger area

Distribution Systems 12 of 15 Question list Question 10 Question 12 Question 13 Question 14 This quiz: 15 point(s) possible This question: 1 point(s) possible The power factor of a circuit can be improved by increasing the __ . A. voltage B. capacitance C. current D. wire size

Multiple Choice Question In an ergonomically correct workstation, your keyboard should be positioned to keep your wrists as straight as possible.Arms should be positioned at a __ degree angle. 25 30 45 50

To pursue a career in math, science, or engineering, which of the following subjects should you study?Select all that apply. (2 points) algebra chemistry physics programming

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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