HW4 (1)

d) D Roller Support Cable Support 20N 3N 50N

Question 3 a) The details of travel time and capacity of different links in a portion of a city road network is as given in Table 1. Assign a traffic volume of 15,000 pcu per hr from node A to node I by multiple route assignment technique. Table 1: Travel time and capacity Link Travel time in minutes Practical capacity in pcu/hr A-B 6000 A-C 5000 A-D 5000 B-F 6000 C-E 5000 D-G 5000 E-H 5000 F-I 6000 G-H 5000 H-I 10000 wwNN 2 2 3 3 3 2 N33 N 2 2

please solve these question carefully , please make sure its correct , i just want final answer of all the three questions . i will rate if all are correct. Please answer all ( details not requried )

Which of the following is not a good match? A )The burning material: Wood, The firefighting material:ABC powder B )The burning material: Plastic, The firefighting material: Water C )The burning material: Magnesium, The firefighting material: Sand D )The burning material: Cooking oil, The firefighting material: Wet chemical E )The burning material: Electrical contact, The firefighting material:Foam spray

Please provide correct answer fast ,Seems 5456Btu/hr is the correct one.

Arc discharge method for making nanoparticles uses plasma (ionized gas). This ionized gas is from: a)Hydrogen gas b) The difference in potential between the two electrodes c)None of them d)Oxygen gas

Question 12 14) An asteroid is accreting mass from the surrounding space that is "stationary". It can be shown that the moment of inertia is: 1- 8/15 πρ R where p is the density both of the asteroid and the material being accreted. After a while the radius doubles. What happens to the rotational speed in the transition? O a) Is conserved - does not change O b) Is doubled O ) Falls to 3% of the original d) Increases by 3% of the original O e) Falls to 6% of the original O N Goes to 1/2 as in a completely inelastic collision of same size balls O 8) Cannot be determined from the information provided

Calculate the day length at Mosul city (latitude angle = 36.5°N.) on each of the following dates:- a) 16th Feb., b)15th May, c) 17th of July and d)15th of October.

the title of the book: Engineering Thermofluids Thermodynamics, Fluid Mechanics, and Heat Transfer by: Mahmoud Massoud

Part c only

Heat Transfer (Multiple Choice) 1.) The quantity which determines the direction of heat flow. a.)Heat Flux b.)Temperature Difference c.)Velocity of flow d.)Prandtl Number  2.) Forced Convection formulas hold true only for values of  a.) Re < 4000 b.)Diam. D>6m c.) Pr>1 d.)Nu<4000 3.) The analogy between Ohms Law and Fouriers Law is that voltage corresponds to  a.)Conduction b.)Heat Rate c.)Temperature Difference d.)Heat Flux  4.)An expression for resistance in parallel is  a.)R=1/Ra+1/Rb+1/Rc b.)R=RbRc+RaRc+RaRb/Ra+Rb+Rc c.)R=Ra+Rb+Rc/RbRc+RaRc+RaRb d.)R=RaRbRc/RbRc+RaRc+RaRb

i just need final answer no explanations :    just mention correct options

i need just the answer , please solve it quickly

help please fast

Q22 155 Poor power factor results in: a) Higher energy losses b) Higher load current c) Both a & b d) Neither a or b

5- If we want to reduce the illumination to half we must do the below: a-rotate the angle of light source by 60 degree b- increase the distance about 70% c- reduce the distance to half d-a& b are correct 6- Optical radiation consist of: a) visible light, IR radiation and UV radiation b) the electromagnetic wave spectrum between 100nm to 1mm c) a & b are correct d) there is no correct answer 7- According to iso 17637, what of the below listed shall be taken into consideration for increasing the efficiency of test when using the lighting? a-correct layout of lights for the examination b-prevention from dazzling c-setup of optimal color temperature of the source of lighting d- all the above 8- According to ISO 6520-1, burn-through is :- a- local irregularity of surface in the area of restart of welding b- local damage to the parent metal surface, adjacent to the weld, resulted fro accidental arcing c-trough metal run-out resulting in that a full-length bore appears in the weld d- damages…

Answer 31

The "normal" component of the equation of motion is written as EF,=ma, where EF, is referred to as the A) impulse B) centripetal force C) tangential force D) inertia force

True or False: a.) For a mixing chamber, its conservation of mass principle requires that the sum of the incoming mass flow rate equal the volume mass rate of the outgoing mass. b.) The flow work is different for fluid pushed into and out of the control volume. c.) Cp is the sum of Cv and R d.) Mass flow rate can be expressed as mass equals density times velocity

A horizontal move to the right on the psychrometric chart corresponds to which of the                                                                                                                  following? Select all that apply. A) A decrease in specific B) An increase in enthalpy. C) A decrease in D) A decrease in humidity ratio. E) A decrease in relative F)     Which of the following equations is correct to calculate heat flow by water?                                                                                                                                                                                                                                                                                                                                                A) Q = 500 * GPM * AT B) Q = 4.5 * CFM * AH C) Q = 1.1 * CFM * AT D)     8)   Identify which of these equations should be used for the following load estimates:…

04C) Cable reaction force is the cable and acts .. . the object. a. perpendicular to, away from O b. perpendicular to, towards O c. along, away from O d. along, towards

1-An example of a physical property is A) the reaction of rubidium with water to form rubidium hydroxide B) the density of boron C) the burning of sulfur to form sulfur dioxide D) the reaction of cesium with oxygen to form cesium superoxide E) the energy content of liquid sodium 2-If you have 600 kJ of heat to spend, and you use it to melt lead, how many % ounce wheel weights (at 200C) can you melt? Note that Lead is NOT measured in troy ounces, but proper ones (16 ounces in a pound), the specific heat of lead is 0.13 J/goC and its melting point is 327.5oC. 3-The written value of 1.0 um means a. 102 m b. 10-2 m c. 106 m d. 10-6 m e. 10-9 m 4-The written value of 1.0 um means a. 102 m b. 10-2 m c. 106 m d. 10-6 m e. 10-9 m 5- Which element has 71 neutrons? a) 222Rn b) 146 Nd c) 159Sm d) 140Ce e) 121Sn 3.9 6- Which of the following is NOT found in the nucleus? a) in b) He c) }H d) -je d) je 7- There are two common ions for gold: Au(1) and Au(III). Which of these would be the Auric ion?…

...... the frequency from the 3- The frequency of the signal from the skidding tires is tires that are rotating on dry pavement in ABS. a) lower than b) higher than c) same d) double are combined in the integrated power unit 4- Most of the small hybrid vehicle components (IPU) which located. a) in the engine compartment b) behind the rear seats c) under the steering wheel d) under the roof of the vehicle 5- For highway driving, the car can be lowered to a) improve aerodynamics b) improve the visibility c) enhance the damping d) enhance the efficiency of break system

B/ Choose correct answer from the following (choose 5 only): 1. The iron ore mostly used for the production of pig Iron is: b) Hematite c) Bauxite a) Cuprite d) Bornite 2. In TIG are welding, the welding zone is shielded by an atmosphere of a. Helium b) Hydrogen c) Nitrogen 3. A moving mandrel is used in: a) wire drawing b) tube drawing c) metal cutting d) forging 4. The operation of producing Pepsi cans is known as: a) impact extrusion b) direct extrusion c) sizing d) indirect extrusion 5. Which of the following is used to form Complex shapes such as carburetor: a) centrifugal casting b) sand casting c) powder metallurgy d) pressure die casting 6. Which one of the cutting tools are make by powder metallurgy. a) Phosphor Bronze b) carbides c) tool steel d) diamond d) Acetylene

24 - It can resist the applied shear stress by undergoing some deformation. What is the phase state in which the shear stress is directly proportional to the strain change called?    a) Thick   B) Status  NS) Gas  D) Liquid  TO) Intensity

Circle on the statements which is NOT correct, then correct it with explain.A-) Lumped systems more suitable and applied to cooling in liquids rather than cooling in gases. B-) Fins are preferred to be fixed in liquid side rather than gas side to increase heat transfer. C-) Corrected length (Lc) is used in the design of fins to increase the fin efficiency. D-) Good fin have both efficiency and effectiveness less than unity.

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17 and 18

pt) You have two solar hot water collectors on the roof, each is 4 feet by 8 feet. Assume the panels are 50% efficient. The panels receive about 300 BTU per hour per square foot, for a total of 5 hours. You have a hot water tank connected to the panels filled with 600 pounds of water, starting in the morning at 60 deg F. What will the water temperature be at the end of the 5 hours?

sustainable energy

Diffsuion process is faster for____   A) Covalently bonded materials   B) High density materials     C) Larger diffusing atoms    D) Materials with secondary bonding   E) Close packed structures

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20. A light is placed on a horizontal ground 40 ft from a building. A man 6 ft tall walks from the light toward the building at a rate of 5 ft/s. Find the rate at which his shadow on the building is decreasing when he is 16 ft from the building. A) 2.896 ft/s B) 2.333 ft/s C) 2.083 ft/s D) 2.667 ft/s