AUTMOTIVE TECH, TECH MANUAL & MIND TAP
6th Edition
ISBN: 9781305383180
Author: ERJAVEC
Publisher: CENGAGE L
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Textbook Question
Chapter 7, Problem 9RQ
How should a class B fire be extinguished?
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Check out a sample textbook solutionStudents have asked these similar questions
B
Z
001
2.5 ft
PROBLEM 15.236
The arm AB of length 16 ft is used to provide an elevated
platform for construction workers. In the position shown, arm
AB is being raised at the constant rate de/dt = 0.25 rad/s;
simultaneously, the unit is being rotated about the Y axis at the
constant rate ₁ =0.15 rad/s. Knowing that 20°, determine
the velocity and acceleration of Point B.
Answers: 1.371 +3.76)+1.88k ft/s
a=1.22 -0.342)-0.410k ft/s²
X
F1
3
5
4 P
F2
F2
Ꮎ
Ꮎ
b
P
3
4
5
F1
The electric pole is subject to the forces shown. Force F1
245 N and force F2 = 310 N with an angle
= 20.2°.
Determine the moment about point P of all forces. Take
counterclockwise moments to be positive.
=
Values for dimensions on the figure are given in the following
table. Note the figure may not be to scale.
Variable Value
a
2.50 m
b
11.3 m
C
13.0 m
The moment about point P is 3,414
m.
× N-
If the moment about point P sums up to be zero. Determine
the distance c while all other values remained the same.
1.26
m.
Z
0.2 m
B
PROBLEM 15.224
Rod AB is welded to the 0.3-m-radius plate, which rotates at the
constant rate ₁ = 6 rad/s. Knowing that collar D moves toward end B
of the rod at a constant speed u = 1.3 m, determine, for the position
shown, (a) the velocity of D, (b) the acceleration of D.
Answers: 1.2 +0.5-1.2k m/s
a=-7.21-14.4k m/s²
A
0.25 m
0.3 m
Chapter 7 Solutions
AUTMOTIVE TECH, TECH MANUAL & MIND TAP
Ch. 7 - What is the correct way to dispose of used oil...Ch. 7 - Where in the shop should a list of emergency...Ch. 7 - Which of the following offer(s) the least...Ch. 7 - Which of the following statements about latex and...Ch. 7 - Describe the correct process for lifting a heavy...Ch. 7 - What are bloodborne pathogens and why should...Ch. 7 - List at least five things you should remember when...Ch. 7 - List at least five precautions that must be...Ch. 7 - How should a class B fire be extinguished?Ch. 7 - Where can complete EPA lists of hazardous wastes...
Ch. 7 - Which of the following statements about safety...Ch. 7 - Gasoline is highly volatile highly flammable...Ch. 7 - Technician A says that it is recommended that you...Ch. 7 - Technician A says that used engine coolant should...Ch. 7 - There are many ways to clean parts while they are...Ch. 7 - Federal Right-To-Know Laws concern. auto emission...Ch. 7 - Which of the following is/are important when work...Ch. 7 - Technician A says that the volatility of a...Ch. 7 - Which of the following is not recommended for use...Ch. 7 - List at least five precautions that must be...Ch. 7 - What is the correct procedure for using a fire...Ch. 7 - Technician A ties his long hair behind his head...Ch. 7 - Technician A uses compressed air to blow dirt from...Ch. 7 - Heavy protective gloves should be worn when....Ch. 7 - Proper disposal of oil filters includes. recycling...
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