Engineering » Page 14

Engineering

Wesley Murphy

When removing the balance shaft assembly: Technician A inspects the bearings for unusual wear or damage. Technician B smoothens a damaged camshaft or balance shaft journal by lightly sanding it. Who is correct

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Engineering

Kendrick Ho

Analysis of the relationship between the fuel economy (mpg) and engine size (in liters) for 35 models of cars produces the regression model ModifyingAbove mpg with caret equals 36.91 minus 3.824 times Engine size mpg=36.91-3.824•Engine size. Explain what the slope means. Choose the correct answer below.

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Engineering

Kristina Townsend

Consider the mixing of 0.8 kg/s of hot water at 348 K and 1 kg/s of cool water at 298 K that is generating warm water. Assume no work is being done and the system is in steady state, but heat is lost at the rate of 30 kJ/s during this mixing. Find the temperature of the warm water flow stream? Assume Cp = 4.18 kJkg

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Engineering

Beckett Campbell

Implement the function lastChars () that takes a list of strings as a parameter and prints to the screen the last character of each string, one per line. If the list provided as a parameter is empty, the function prints a message to that effect. If any of the strings are empty, they are skipped in the display. The information below shows how you would call the function lastChars () and what it would display for a couple of parameters:

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Engineering

Amari Lozano

What are units for heating capacity? Mark all that apply: a) - Tons b) - kJ/kg c) - kW d) - Btu

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Engineering

Abbott

How does Cesca show that she has learned these lessons?

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Engineering

Renee

Show that the radius r of the orbit of a moon of a given planet can be determined from the radius R of the planet, the acceleration of gravity at the surface of the planet, and the time τ required by the moon to complete one full revolution about the planet. Determine the acceleration of gravity at the surface of the planet Jupiter knowing that R = 71 492 km and that τ = 3.551 days and r = 670.9 x 10³ km for its moon Europa.

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Engineering

Hayden Rosario

what do you expect for total head at the bottom of the reservoir with depth of y and considering the datum at the bottom of the reservoir? Explain.

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Engineering

Shelby

A heat exchanger operates at steady state, and both flows through the exchanger are isobaric.

Water flows through one side of the heat exchanger at 20 bar. The inlet temperature of the water is 280 Celsius. The outlet is saturated liquid. The mass flow rate of water is 2.0 kg/s.

Air flows through the other side of the heat exchanger at 1 bar. The inlet temperature of the air is 300 K. The mass flow rate of air is 9.0 kg/s.

Determine the outlet enthalpy of the air, in kJ/kg.

A) 759.7

B) 859.7

C) 812.2

D) 776.2

E) 743.6

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Engineering

Marlie Mcintyre

Consider a wall that consists of two layers, A and B, with the following values: a. kA = 0.7 W/m.ºC, b. LA = 6 cm, c. kB = 0.25 W/m.ºC, d. LB = 3 cm. If the temperature drop across the wall is 21ºC, what is the rate of heat transfer through the wall per unit area of the wall?

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Engineering

Tucker Lyons

Which of the following is an easy way to remember the modified "X" tire rotation?

A. Nondrive wheels straight, cross the drive wheels

B. Drive wheels straight, cross the nondrive wheels

C. Drive wheels crossed, nondrive wheels straight

D. Drive wheels crossed, nondrive wheels crossed

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Engineering

Kaylah Mora

The principal application of high-speed steel is (a) - cutting tools (b) - internal combustion engine block (c) rails for high-speed trains (d) turbine blades

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Engineering

Amelie Roberson

1. A sine wave is to be used for two different signaling schemes: a. PSK b. QPSK The duration of a signal element is 10-5 s. If the received signal is of the following form: s (t) = 0.005 sin (2 106 t +  ) volts And if the measured noise power at the receiver is 2.5 x 10-8 watts, determine the Eb/N0 (in dB) for each case.

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Engineering

Avery Velez

What's a disadvantage of highest MERV-rated filters?

1) the pressure drop across high MERV filters is less.

2) high MERV filters require at least a 240 V power supply.

3) the pressure drop across high MERV filters is significant.

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Engineering

Sidney Cooley

Braking is when you squeeze the brake pedal until just before the wheels lock the ease off the pedal then squeeze again repeating until you've reduced your speed enough.

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