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QUESTION 5 (100 marks) (a) A crane is to be used to lift materials at a construction site. The crane is composed of...
A crane is a type of machine mainly used to lift, lower, and horizontally move heavy...
A crane is a type of machine mainly used to lift, lower, and horizontally move heavy objects. It is immensely useful in construction works. In this problem, we will be analyzing a type of crane called a luffing crane. Cable Gantry 20 m 6 m 30 10000 N 30- Jib 10 m 20000 N Main mast Figure 1: a typical laffing crane As illustrated in fig. 1.a luffing crane typically consists of a main mast, a jib, a gantry and...
Part A The tower crane is used to hoist the 2.2-Mg load constant velocity The 1.6-Mg...
Part A The tower crane is used to hoist the 2.2-Mg load constant velocity The 1.6-Mg jib BD, 0 6-Mg jb BC and 5 9-Mg counterweight C have centers of mass at G. G Determine the resultant moment produced by the load and the weights of the tower crane jibs about point A and about point B Figure N m 2.5 m 5
can you calculate this question and explain why? thanks The electromagnet system shown in Figure 1 is used to lift a...
can you calculate this question and explain why?
thanks
The electromagnet system shown in Figure 1 is used to lift a section of steel channel. The coil has 2000 turns and a resistance of 2 Q. The dimensions of the magnetic system are shown in the figure. The air gap 'g' is 0.5 cm. The reluctances of the electromagnet and channel can be ignored. 4T x10 H/m. 2. The permeability of free space is Find the flux and flux density...
6. The mass moves only in the vertical direction. Ignore any rotation of the mass. Assume that th...
6. The mass moves only in the vertical direction. Ignore any rotation of the mass. Assume that the rope wound around the pulley remains in tension at all times. At time t-0, the mass is lifted a small distance from its equilibrium position, and then released C 40 N ki-100 N/m m 15 kg k2-35 N/m m/s 6(a) Find the period 7d for damped, unforced vibrations of this system. (b) How long will it take for the vibration amplitude to...
e3 shows the soil profile (sand-clay-sand) at the site of a warehouse that causes a surface...
e3 shows the soil profile (sand-clay-sand) at the site of a warehouse that causes a surface ding of 100 kPa. (pw= 1000 kg/m; g 9.81 m/s2) on 4 (25 marks) A clay sample was cored at 7 m depth (middle of the clay layer). Based on laboratory test data, it was found that the clay was over-consolidated with OCR = 2.5 (before applying surface loading), compression index Ce 0.44 and recompression index C. = 0.1. The consolidation coefficient of clay...
5. A half section of a uniform thin pipe of mass m 2 kg is at...
5. A half section of a uniform thin pipe of mass m 2 kg is at rest when a force P 40 N is applied at point A as shown. The static and kinetic friction coefficients are μ': 0.15 and μ"01, respectively. Determine (a) the angular acceleration, and (b) the magnitude and direction of the friction force between the thin pipe and the horizontal plane. The distance between the geometric center O and mass center G of the thin pipe...
4. MAGNETIC FORCE II. (26 Marks) Mae Balance The circuit shown in Figure 1 is used to make a magnetic balance to Wei...
4. MAGNETIC FORCE II. (26 Marks) Mae Balance The circuit shown in Figure 1 is used to make a magnetic balance to Weign objects. The mass to be measured is hun from the center of the bar that is in a magnetic field of 1.850 Tas shown The battery voltage can be adjusted to vary the current in the circuit. The horizontal bar is 65 000 m long and is made of extremely light-weight material, take it a wires. All...
Mass transfer questions. QUESTION 2 [20 MARKS] Ammonia (A) - water (B) solution is in contact...
Mass transfer questions.
QUESTION 2 [20 MARKS] Ammonia (A) - water (B) solution is in contact at a surface with an organic liquid at 278 K. The concentration of ammonia in the organic phase is 10 wt%, and the density of aqueous solution is 961.7 kg/m². Meanwhile, the concentration of ammonia in water at the other end of the film at 5.4 mm away is 2.5 wt%, and the density is 991.7 kg/m². The flux of ammonia and the water...
QUESTION 1 [25 marks A frame loaded with a uniformly distributed load at Member AB and...
QUESTION 1 [25 marks A frame loaded with a uniformly distributed load at Member AB and point load at Member BC and joint B. It has pinned supports A and C, while joint B is fixed connected, as can be seen in Figure 1. Take E-200 GPa. a) Using the slope-deflection method, calculate the moments and illustrate the bending moment diagram. [15 marks) b) Then calculate the shear forces and sketch the shear force diagram. [10 marks) 22 KN 10...
4. MAGNETIC FORCE II. (26 Marks) Magnetic Balance The circuit shown in Figure 1 is used...
4. MAGNETIC FORCE II. (26 Marks) Magnetic Balance The circuit shown in Figure 1 is used to make a magnetic balance to weigh objects. The mass m to be measured is hung from the center of the bar that is in a magnetic field of 1.850 T as shown. The battery voltage can be adjusted to vary the current in the circuit. The horizontal bar is 65.000 сm long and is made of extremely light-weight material, (take it as massless)....
A crane is a type of machine mainly used to lift, lower, and horizontally move heavy objects. It is immensely useful in construction works. In this problem, we will be analyzing a type of crane called a luffing crane. Cable Gantry 20 m 6 m 30 10000 N 30- Jib 10 m 20000 N Main mast Figure 1: a typical laffing crane As illustrated in fig. 1.a luffing crane typically consists of a main mast, a jib, a gantry and...
Part A The tower crane is used to hoist the 2.2-Mg load constant velocity The 1.6-Mg jib BD, 0 6-Mg jb BC and 5 9-Mg counterweight C have centers of mass at G. G Determine the resultant moment produced by the load and the weights of the tower crane jibs about point A and about point B Figure N m 2.5 m 5
can you calculate this question and explain why?
thanks
The electromagnet system shown in Figure 1 is used to lift a section of steel channel. The coil has 2000 turns and a resistance of 2 Q. The dimensions of the magnetic system are shown in the figure. The air gap 'g' is 0.5 cm. The reluctances of the electromagnet and channel can be ignored. 4T x10 H/m. 2. The permeability of free space is Find the flux and flux density...
6. The mass moves only in the vertical direction. Ignore any rotation of the mass. Assume that the rope wound around the pulley remains in tension at all times. At time t-0, the mass is lifted a small distance from its equilibrium position, and then released C 40 N ki-100 N/m m 15 kg k2-35 N/m m/s 6(a) Find the period 7d for damped, unforced vibrations of this system. (b) How long will it take for the vibration amplitude to...
e3 shows the soil profile (sand-clay-sand) at the site of a warehouse that causes a surface ding of 100 kPa. (pw= 1000 kg/m; g 9.81 m/s2) on 4 (25 marks) A clay sample was cored at 7 m depth (middle of the clay layer). Based on laboratory test data, it was found that the clay was over-consolidated with OCR = 2.5 (before applying surface loading), compression index Ce 0.44 and recompression index C. = 0.1. The consolidation coefficient of clay...
5. A half section of a uniform thin pipe of mass m 2 kg is at rest when a force P 40 N is applied at point A as shown. The static and kinetic friction coefficients are μ': 0.15 and μ"01, respectively. Determine (a) the angular acceleration, and (b) the magnitude and direction of the friction force between the thin pipe and the horizontal plane. The distance between the geometric center O and mass center G of the thin pipe...
4. MAGNETIC FORCE II. (26 Marks) Mae Balance The circuit shown in Figure 1 is used to make a magnetic balance to Weign objects. The mass to be measured is hun from the center of the bar that is in a magnetic field of 1.850 Tas shown The battery voltage can be adjusted to vary the current in the circuit. The horizontal bar is 65 000 m long and is made of extremely light-weight material, take it a wires. All...
Mass transfer questions.
QUESTION 2 [20 MARKS] Ammonia (A) - water (B) solution is in contact at a surface with an organic liquid at 278 K. The concentration of ammonia in the organic phase is 10 wt%, and the density of aqueous solution is 961.7 kg/m². Meanwhile, the concentration of ammonia in water at the other end of the film at 5.4 mm away is 2.5 wt%, and the density is 991.7 kg/m². The flux of ammonia and the water...
QUESTION 1 [25 marks A frame loaded with a uniformly distributed load at Member AB and point load at Member BC and joint B. It has pinned supports A and C, while joint B is fixed connected, as can be seen in Figure 1. Take E-200 GPa. a) Using the slope-deflection method, calculate the moments and illustrate the bending moment diagram. [15 marks) b) Then calculate the shear forces and sketch the shear force diagram. [10 marks) 22 KN 10...
4. MAGNETIC FORCE II. (26 Marks) Magnetic Balance The circuit shown in Figure 1 is used to make a magnetic balance to weigh objects. The mass m to be measured is hung from the center of the bar that is in a magnetic field of 1.850 T as shown. The battery voltage can be adjusted to vary the current in the circuit. The horizontal bar is 65.000 сm long and is made of extremely light-weight material, (take it as massless)....
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