Electricity for Refrigeration, Heating, and Air Conditioning (MindTap Course List)
10th Edition
ISBN: 9781337399128
Author: Russell E. Smith
Publisher: Cengage Learning
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Textbook Question
Chapter 1, Problem 9RQ
What type of ladder should the technician use on the job?
- a. aluminum
- b. fiberglass
- c. wood
- d. both a and b
- e. both b and c
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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…
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
3. One precaution that needs to be foliowed in a work area displaying the sign shown above is
be cut into 3.2-m-long pieces. How many 3,2-m-long pieces of pipe can be cut from the original
A length of copper pipe measures 15.3 m. According to a job's specifications, the pipe needs to
wear a leather apron.
b. avoid using solvents.
wear rubber gloves.
d. prohibit welding.
a.
C.
4.
15.3-m-long copper pipe?
a. two
b. three
C. four
d. Five
5. What is strain?
a. Determined by dividing the ioad by the smallest actual cross-sectional area e
specimen
b. The ratio between the original length and the change in length when an external forre
applied
C. The amount of stress that a material can absorb without exceeding its breaking stress
d. A measurement of the deformation produced by the application of an external force
ight of eve should be-
Chapter 1 Solutions
Electricity for Refrigeration, Heating, and Air Conditioning (MindTap Course List)
Ch. 1 - True or False: A heating and air-conditioning...Ch. 1 - What is a live electrical circuit?Ch. 1 - Which of the following voltages will a...Ch. 1 - Electrical shock occurs when a person _________....Ch. 1 - What are the important elements of electrical...Ch. 1 - Prob. 6RQCh. 1 - Which of the following is the standard by which...Ch. 1 - Prob. 8RQCh. 1 - What type of ladder should the technician use on...Ch. 1 - What precautions should be taken when you see a...
Ch. 1 - True or False: It is recommended that at least one...Ch. 1 - True or False: The correct fuse size for an...Ch. 1 - What is the difference between a two-prong plug...Ch. 1 - Which prong on a three-prong plug is the ground?...Ch. 1 - True or False: A grounding adapter does no good if...Ch. 1 - An electrical device that will open an electrical...Ch. 1 - True or False: Receptacles used on the job site...Ch. 1 - What precautions should you use when working in an...Ch. 1 - What is the difference between a fuse and a...Ch. 1 - List at least five electrical safety rules that...
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- 7. One precaution that needs to be followed in a work area displaying the sign shown above: A. avoid using solvents. B. wear a leather apron. C. wear rubber gloves. D. prohibit welding. 8. A length of copper pipe measures 15.3 m. According to a job's specifications, the pipe needs to be cut into 3.2-m-long pieces. How many 3.2-m-long pieces of pipe can be cut from the original 15.3-m-long copper pipe? A. one B. two C. three D. four 9. You observe a worker emptying used degreaser cleaning fl uid into the sink in a workshop. What should you do? A. Notify your immediate supervisor of the hazard the next day. B. Refer the worker to the company policy manual. C. Advise the worker that it is an occupational health and safety hazard. D. Ignore the situation as there is nothing wrong with this disposal method.arrow_forwardTwo techs are discussing oil coolers. Technician A says that when inspecting oil- to-water type coolers, look for mixing of the fluids: oil in the coolant, and coolant in the oil. Technician B says that when inspecting oil-to-air type coolers, look for oil in the coolant only. Who is correct? Select one: a. Technician A b. Technician B c. Both A and B d. Neither A nor Barrow_forwardList and explain five ladder use safety rules.arrow_forward
- What should be done in the case of a personal injury emergency?arrow_forwardFLAKABLE LIQUID 3. One precaution that needs to be foliowed in a work area displaying the sign shown above is wear a leather apron. b. avoid using solvents. C. wear rubber gloves. d. prohibit welding. a.arrow_forwardWhat is the key to preventing accidents in a welding shop?arrow_forward
- Which of the following statement is incorrect? Select one: Building structure is an example of space frame. Tripod is an example of redundant frame. space structure is an example of space frame. Tripod is an example of Space frame.arrow_forward(20) When working on a ladder and reaching to the side, never let your __________ pass beyond either ladder rail. Select one: A. BELT BUCKLE B. SHIRT POCKET C. HEAD D. HIParrow_forwardChoose the bestarrow_forward
- Which is the safest distance between the wall and the boiler? a. 5m b. 1.5m c. 1m d. 10marrow_forward4. Which of the following factors affect the safety of the worker in a workshop ? A. Interior design of the workshop B. Ventilation and lighting C. Both A and B D. Neither A nor Barrow_forwardTrue or False 1. It is acceptable to use a hoist to lift something that weighs more than the rating on the hoist when the load is lifted carefully. 2. Typically, combustible material accidents occur at higher temperatures while flammable material accidents occur at room temperature. 3. Water reactive chemicals include calcium carbide, cyclooctene, metal hydrides, and metals like sodium and potassium. 4. When driving material lifting equipment, workers should maintain at least a 5-foot clearance from overhead power lines. 5. Workers should use at least 2 straps placed equally from the center when lifting a long I-beam. ******************************************************************************************** Multiple Choice 1. Which of the following chemicals is not considered a liver toxin? A. Glacial acetic acid B. Carbon Tetrachloride C. Ethanol D. Trichloroethylene 2. Which of the following is a safety practice intended to protect workers from a lightning strike? A. Use a metal…arrow_forward
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