Refrigeration and Air Conditioning Technology (MindTap Course List)
8th Edition
ISBN: 9781305578296
Author: John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson
Publisher: Cengage Learning
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Textbook Question
Chapter 50, Problem 8RQ
What is the acceptable method for communicating with the crane operator while rigging a unit to the roof?
A. Cell phones
B. Walkie-talkies
C. Hand signals
D. Verbal communications
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Which of the following is not a true of group lockout or tagout?
a.
Each employee working on the equipment is an authorized employee
b.
A supervisor may attach a lock for an entire work crew.
c.
Each person working on the equipment must have a lock or tag
d.
A supervisor should be the first or last person to attach a lock or tag
Lockout locks:
Can be used to lock tool boxes, storage sheds, etc.
b. Can be used only for lockout purposes.
Are provided by the equipment manufacturer.
d.
a.
C.
Must be bright orange in color.
Authorized employees must be trained:
To recognize hazardous energy sources, and to know the
type and magnitude of the hazardous energy sources.
b.
a.
To perform the lockout/tagout procedure.
C.
When an audit shows deficiencies with the procedure.
d.
All of the above.
When authorized employees perform a shutdown they must:
a. Notify all affected employees that they are starting a lockout
procedure,
b. Locate all energy sources that power the equipment.
Follow the procedures to shut down each machine.
d. All of the above.
с.
If several people are needed to work on a piece of equipment:
a. The first worker to arrive to the job is the one who applies
the locks.
b. Their supervisor is the only one who needs to apply a lock.
c. Each worker must apply his or her own lock.
d. The person who will be the…
Identify a true statement for Jib crane.
Material handling equipment having overhead movement and covers circular area
Material handling equipment moves only horizontally and covers circular area.
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Material handling equipment moves only horizontally and covers rectangular area.
Chapter 50 Solutions
Refrigeration and Air Conditioning Technology (MindTap Course List)
Ch. 50 - Which of the following is true regarding the...Ch. 50 - Which process would best represent the opposite of...Ch. 50 - Mixed air is best described as the combination of...Ch. 50 - Which of the following should be taken into...Ch. 50 - A bonded roof is one that has A. reinforced steel...Ch. 50 - Properly installed roof curbs will reduce the...Ch. 50 - When rigging a unit to the roof, what minimum...Ch. 50 - What is the acceptable method for communicating...Ch. 50 - Prob. 9RQCh. 50 - Prob. 10RQ
Ch. 50 - The most efficient way to establish the best...Ch. 50 - Free-cooling can be accomplished if the
A....Ch. 50 - Prob. 13RQCh. 50 - Prob. 14RQCh. 50 - Explain why the outside air damper is typically...Ch. 50 - Briefly explain the purpose of ASHRAE Standard 62.Ch. 50 - Explain the concept of demand control ventilation.Ch. 50 - Explain how carbon dioxide levels can be used to...Ch. 50 - Describe the blowers used on VAV systems.Ch. 50 - A cooling-only VAV box has all of the following...Ch. 50 - Which of the following is true regarding a reheat...Ch. 50 - Variable refrigerant flow systems sense the...Ch. 50 - The acronym PID stands for ______, _____, and...Ch. 50 - Explain the main benefit of a heat-recovery VRF...Ch. 50 - The pump on a dry cooler can direct water to...Ch. 50 - During low ambient conditions, the space cooling...
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