Electricity for Refrigeration, Heating, and Air Conditioning
9th Edition
ISBN: 9781285179988
Author: Russell E. Smith
Publisher: Cengage Learning
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1)In which safety precaution, Inflammable materials should not be kept near to electrical controls.
a.Electrical
b.Housekeeping
c.General
d.Lathe
2)In Maintenance of drive Belts of the lathe machine, the correct tension in each belt should be having a deflection of ________________.
Less than 6 mm
Less than 6 cm
6 mm
6 cm
A standard is intended to achieve which one of the following:
a.
Design
b.
Performance
c.
Uniformity
d.
Safety
Clear my choice
What is the availability (in %) of a system comprising the following components:a. Component Ai. MTBF = 100,000 hoursii. Repair time = 5 minutesb. Component Bi. MTBF = 1,000,000 hoursii. Repair time = 60 minutesc. Component Ci. MTBF = 150,000 hoursii. Repair time = 5 minutes
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- What is the process of comparing an unknown quantity with another quantity taken as standard called? a. scaling b. scientific method c. scientific notation d. measurementarrow_forwardHow can you prevent the outbreak of fire? Give an example.arrow_forwardWhich 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 tagarrow_forward
- I want to resolve please as fast as the article: resistance formingarrow_forwardFrom the following identify the false statement . A) In electrical safety precaution, necessary steps should be taken to avoid overloading of electrical circuits. B) In housekeeping safety precaution, the machine should be cleared with tools before starting the operation. C) In general safety precaution, the operator should be familiar with the emergency stop button on the machines. E) In general safety precaution, the machine tool should be cleared with metal chips after the machining process.arrow_forwardThe function of a control system.arrow_forward
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