ELECTRICITY FOR TRADES
ELECTRICITY FOR TRADES
3rd Edition
ISBN: 9780078118630
Author: Petruzella
Publisher: RENT MCG
bartleby

Concept explainers

Question
Book Icon
Chapter 1.2, Problem 11RQ
To determine

Mention the safety way to open a disconnect switch using a lockout–tagout procedure.

Blurred answer
Students have asked these similar questions
Lockout is required: During servicing and maintenance where unexpected ener- gization or start-up of equipment could harm employees. During repair and replacement work, and during renovation work. a. b. C. During modifications or other adjustments to powered equipment. d. All of the above. Lockout may involve: Opening a disconnect switch. b. a. Closing a valve. Placing a block in the equipment. d. All of the above. C. Lockout is the process ci Shutting off a machine at the end of a shift. Warning equipment operators about the risks involved in bypassing a machine guard. Preventing the flow of energy from a power source to a piece of equipment, and keeping it from operating. a. b. C. d. Preventing mechanics from starting repairs without the machine operators' knowledge. Tagout: Serves as a warning. b. Physically restrains a person from operating a power source. Must be applied using specialized tagout tools. a. C. d. Must be worn like a badge by the employee who is doing the repairs.…
2. A push-button switch that contains a spring to return the button to its original after being pushed is the _______ switch. A. toggleB. slideC. push on/push off D. momentary action 3. If a mechanical switch is used to control a digital number display circuit, the likely result will be A. contact bounce.B. an extremely bright display.C. a blown fuse. D. a short circuit.
7. Which statement is true for the process-control relay ladder diagram shown in the figure? A. The pressure switch, temperature switch, and push button must be closed for the motor to start. B. With the temperature switch closed, the motor will start once the push button is pressed. C. With the pressure switch closed and the push button released, the motor will start. D. Only the temperature switch has to close for the motor to start.

Chapter 1 Solutions

ELECTRICITY FOR TRADES

Knowledge Booster
Background pattern image
Electrical Engineering
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, electrical-engineering and related others by exploring similar questions and additional content below.
Similar questions
SEE MORE QUESTIONS
Recommended textbooks for you
Text book image
EBK ELECTRICAL WIRING RESIDENTIAL
Electrical Engineering
ISBN:9781337516549
Author:Simmons
Publisher:CENGAGE LEARNING - CONSIGNMENT
Text book image
Electricity for Refrigeration, Heating, and Air C...
Mechanical Engineering
ISBN:9781337399128
Author:Russell E. Smith
Publisher:Cengage Learning
Text book image
Electric Motor Control
Electrical Engineering
ISBN:9781133702818
Author:Herman
Publisher:CENGAGE L
Text book image
Delmar's Standard Textbook Of Electricity
Electrical Engineering
ISBN:9781337900348
Author:Stephen L. Herman
Publisher:Cengage Learning