EBK 3N3-EBK: INDUSTRIAL MOTOR CONTROL
7th Edition
ISBN: 9780176919962
Author: Herman
Publisher: VST
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Chapter 25, Problem 10RQ
To determine
The way in which one of the magnetic overloaded relays open its contact.
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The 4-lbs piece of putty is dropped 12 ft onto the 16-lbs block initially at rest on the two springs, each with a stiffness k = 5 lbs/in. Calculate the additional deflection d of the springs due to the impact of the putty, which adheres to the block upon contact.
A converging elbow (see the figure below) turns water through an angle of 135° in a vertical plane. The flow cross section diameter is
400 mm at the elbow inlet, section (1), and 200 mm at the elbow outlet, section (2). The elbow flow passage volume is 0.2 m³ between
sections (1) and (2). The water volume flowrate is 0.1 m³/s and the elbow inlet and outlet pressures are 140 kPa and 90 kPa. The elbow
mass is 11 kg. Calculate the (a) horizontal (x direction) and (b) vertical (z direction) anchoring forces required to hold the elbow in
place.
D₂-
Section
(1)-
D₁ = 400 mm
135°
200 mm
Section (2)
(a) Fx= i
20809.96
N
(b) Fz= i
-120265
N
Chapter 25 Solutions
EBK 3N3-EBK: INDUSTRIAL MOTOR CONTROL
Ch. 25 - Refer to Figure 251 to answer the following...Ch. 25 - Refer to Figure 25–1 to answer the following...Ch. 25 - Refer to Figure 25–1 to answer the following...Ch. 25 - Prob. 4RQCh. 25 - Prob. 5RQCh. 25 - Prob. 6RQCh. 25 - Prob. 7RQCh. 25 - Refer to Figure 251 to answer the following...Ch. 25 - Refer to Figure 25–1 to answer the following...Ch. 25 - Prob. 10RQ
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