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Engineering

Compute the longitudinal modulus of elasticity (in GPa) for a continuous and aligned hybrid composite consisting of aramid and glass fibers in volume fractions of 0.22 and 0.30, respectively, within a polyester resin matrix, given the following dа ta:

Modulus of Elasticity:

(GPa)

Glass fibers 72.5

Aramid fibers 131

Polyester 2.5

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Engineering

Technician A says that OBD-II systems include generic as well as vehicle

manufacturer's specific diagnostic trouble codes (DTCs) and scan data displays,

Technician B says that OBD-II systems have common DTCs. Who is correct?

O A. Technician B

O B. Technician A

O C. Neither Technician A nor B

O D. Both Technicians A and B

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Kaiya Rodriguez

Engineering

After the 2015 AFC Championship football game between the New England Patriots and the Indianapolis Colts, it was alleged that the New England Patriots had under inflated eleven of their twelve footballs. NFL rules require that the footballs be inflated between 12.5 and 13.5 psi and the Pat's footballs were under by ~2 psi. Claims were made that the lower pressure was due to the change in temperature from the locker room were the footballs were initially inspected and the cold field where the game was played. Assuming that the footballs were properly inflated to the minimum pressure, 12.5 psi, in the locker room where it was 76.5°F (24.7°C), what would the temperature, in °C, have been on the field to explain a loss of 2 psi in pressure.

You will need to assume no change in the volume of the football and no leaks which may or may not be true.

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Engineering

Explain how you could transmit two independent base-band information signals by using SSB on a common carrier frequency.

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Engineering

T

F

2. A "4" indicates that the weld was made in the vertical position.

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Engineering

Copper is generally considered easy to weld because of its high thermal conductivity: (a) true or (b) false?

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Hanna Richardson

Engineering

Once an engineer has a sketch, the next step is to build the product.

True or false

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Engineering

User Location: Inside Viewport Viewport Location: Fresh Viewport in downtown San Fransisco, California Query: [Burger King] Result: Burger King (located just outside the Fresh Viewport) What steps should you take to rate this result?

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Krystal Hickman

Engineering

Choosing to purchase which of the following is likely most harmful to orangutans? Chocolate spreads that contain palm oil. Cold remedies that contain eucalyptus. Gloves that contain latex. Hand sanitizers that contain lemon oil.

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Engineering

Which is a preventive measure to prevent hazards while working with power lines

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Engineering

Is it common knowledge that the temperature of air rises as it is compressed. An inventor thought about using this high-temperature air to heat buildings. He used a compressor driven by an electric motor. The inventor claims that the compressed hot-air system is 25 percent more efficient than a resistance heating system that provides an equivalent amount of heating. Is this claim valid, or is this just another perpetual-motion machine? Explain.

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Engineering

Line (s) indicates passing is allowed if there are no oncoming cars.

O A solid yellow

O Double solid yellow

Broken white

Broken yellow

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Engineering

3. Given the Taylor series expansion for sin x = x - x3 / 3! + x5/5! - x7/7!. Write a program that takes in an arbitrary integer for an angle in degrees, converted the degrees to radians and performs the calculation above. Remember you will need a loop to calculate the! term and float variables to hold the term (s) in the expansion and the converted degrees to radian.

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Engineering

A horizontal opaque flat plate is well insulated on the edges and the lower surface. The top surface has an area of 8 m2 and it experiences uniform irradiation at a rate of 6000 W. The plate absorbs 5000 W of the irradiation and the surface is losing heat at a rate of 750 W by convection. If the plate maintains a uniform temperature of 350 K, determine the absorptivity, reflectivity, and emissivity of the plate.

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Engineering

What area is required if all conditions remain the same except that a shell-and-tube heat exchanger is used with the water making one shell pass and the oil making two tube passes?

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