Bundle: Electricity For Refrigeration, Heating, And Air Conditioning, 10th + Refrigeration And Air Conditioning Technology, 8th + Mindtap Hvac, 4 ... Whitman/johnson's Refrigeration And Air Condi
8th Edition
ISBN: 9780357261385
Author: Russell E. Smith
Publisher: Cengage Learning
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Textbook Question
Chapter 15, Problem 12RQ
Which of the following should be turned off while working on the compressor circuit?
A. The indoor unit fan
B. The unit disconnect
C. The thermostat
D. The main power supply to the building
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Problem 6. The circular plate shown rotates about its vertical diameter. At the instant shown, the
angular velocity ₁ of the plate is 10 rad/s and is decreasing at the rate of 25 rad/s². The disk lies
in the XY plane and Point D of strap CD moves upward. The relative speed u of Point D of strap
CD is 1.5 m/s and is decreasing at the rate of 3 m/s².
Determine (a) the velocity of D, (b) the acceleration of D.
Answers: =0.75 +1.299]-1.732k m/s a=-28.6 +3.03-10.67k m/s²
200 mm
x
Z
Problem 1. The flywheel A has an angular velocity o 5 rad/s. Link AB is connected via ball
and socket joints to the flywheel at A and a slider at B. Find the angular velocity of link AB and
the velocity of slider B at this instant. (Partial Answer: @ABN = -2î + 2.25; red
Z
-1.2 ft
C
-7 Y
-1.5 ft-
B
2.0 ft
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Chapter 15 Solutions
Bundle: Electricity For Refrigeration, Heating, And Air Conditioning, 10th + Refrigeration And Air Conditioning Technology, 8th + Mindtap Hvac, 4 ... Whitman/johnson's Refrigeration And Air Condi
Ch. 15 - Name three types of automatic controls.Ch. 15 - Two categories ofelectric controls...Ch. 15 - What circuit is energized with the thermostat Y...Ch. 15 - The component in the system that is energized when...Ch. 15 - The ________terminal must be energized in the...Ch. 15 - The hot circuit in the thermostat is the...Ch. 15 - Is the heat anticipator in series or parallel with...Ch. 15 - The cooling anticipator is wired A. in parallel...Ch. 15 - Which anticipator is adjustable, heat or cool?Ch. 15 - True or False: The indoor fan must always run...
Ch. 15 - True or False: When the control transformer is not...Ch. 15 - Which of the following should be turned off while...Ch. 15 - The _______diagram is used to locate different...Ch. 15 - To trace the circuits in the unit, the...Ch. 15 - Prob. 15RQCh. 15 - Prob. 16RQCh. 15 - Prob. 17RQCh. 15 - True or False: Open switches will always read...Ch. 15 - Explain why a service technician must always know...
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