Q13/ A single block brake is shown in figure. The diameter of thedrum is 250 mm and the angle of contact is 90°. If theoperating force of 700 N is applied at the end of a lever andthe coefficient of friction between the drum and the lining is0.35, determine the torque that may be transmitted by theblock brake.-200-50250700N20125All dimensions in mm.

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Answered: Q13/ A single block brake is shown in…

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...

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In the drilling process shown in Figure 1, there are three cylinders in which cylinders A and B are used to clamp the work piece and Drill cylinder is used to lower and raise the drill. The sequence of operation are as follows: 1. Activate the lever of the 4/2 DCV to start the process 2. Cylinder A and Cylinder B clamps the workpiece at the same time 3. Activate the second DCV (4/2 DCV with spring return) to drill cylinder lowers the drill and raises afterwards (use the throttle valve and check valve to control the speed of the drill low). drill up is normal speed. 4. Once the drill is raised completely, operate the lever to retract cylinder A and cylinder B. Note: provide the following clearly 1. List of the components required 2. Hydraulic circuit with description to each component 3. state diagram should present the sequence of operation sensors Drill-high Drill Drill-Low Part / Material Cylinder A Cylinder B B+ sensors Figure 1: Drilling Process a) Design the Hydraulic Circuit with…
The capacitor in the rectifier is chosen such that O a. Time constant CR is ten times of that AC output Supply O b. Time constant CR is ten times of that AC input Supply
divided by rpm. Torque equals horsepower 5252 a. b. horsepower x 5252 voltage x horsepower C. d.
The magnetic moment for the circular loop with side a and current I is a. zero O b. па2 O c. 2π al O d. 4/3 πa³1
PLEASE HELP ME CHOOSE WHAT CORRECT LETTER OR ANSWER 4. The induced voltage in a single loop reverses a. once each revolution. b. once each half-revolution. c. twice each half-revolution. d. twice each revolution. e. three times each revolution. 5. Maximum voltage is induced in a single loop when the sides of the loop are passing a. perpendicular to the lines of force. 6. b. parallel to the lines of force. c. not quite perpendicular to the lines of force. d. at a slow rate of speed. e. in front of the N pole face. When a commutator is used on a single loop, the voltage at the brushes has a a. very large magnitude. b. changing polarity. c. constant polarity. d. zero value. e. constant value. 7. The left-hand generator rule is typically used to determine a. conductor speed. b. rotational direction. c. field direction. d. current direction. e. magnetic field strength.
A compound motor short draw a current of 50 A at a voltage of 220 V it rotates at a speed of 1200 rpm Calculate the reverse electromotive force if the resistance of the product is 0.04 ohm the resistance of the series windings is 0.01 ohm and the resistance of the parallel windings is 125 ohm then Calculate the torque generated
uestion 27 1 A 240 V shunt motor takes a line current of 80 A. If the field winding resistance is 120 Q and the armature resistance is 0.4 2, so the current in the armature 2 A 78 A 80 A None of these
Consider the magnetic circuit given in below figure with parameters: u=153 Ho,d1=9 cm, d2=6.2 cm, d3=7.9 cm, d4=0.3 cm and N=497. Assume that all branches have the same cross-sectional area of 5 cm. Magnetic flux density is 0.1 Wb/m2 in the air gap. Based on the given configuration calculate the current I in [A] in the coil. d2 d3 N Tolerance + 0.1 relative
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In a wattmeter, for producing the deflection torque a. Only Voltage coil is energized O b. Both voltage coil and current coil will be energized O c. Only Current coil is energized O d. Either voltage coil or current coil will be energized
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