This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: What must be done to a wafer-lug butterfly valve prior to installation? a. Lubricate the shaft. ... (Read 71 times)

cookcarl

  • Hero Member
  • *****
  • Posts: 539
on: Jul 24, 2018
What must be done to a wafer-lug butterfly valve prior to installation?
 
  a. Lubricate the shaft.
  b. Open the valve.
  c. Close the valve.
  d. Align the flanges.

Question 2

What is the purpose of wearing rings on a centrifugal pump?
 
  a. Prevents fluid leakage
  b. Increases compression ratio
  c. Allows fluid leakage
  d. Prolongs bearing life


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

yifu223

  • Sr. Member
  • ****
  • Posts: 302
Reply #1 on: Jul 24, 2018
Answer to Question 1

b

Answer to Question 2

c


cookcarl

  • Member
  • Posts: 539
Reply 2 on: Jul 24, 2018
YES! Correct, THANKS for helping me on my review

bulacsom

  • Member
  • Posts: 329
Reply 3 on: Yesterday
Wow, this really help

« previous next »
 

Did you know?

The Food and Drug Administration has approved Risperdal, an adult antipsychotic drug, for the symptomatic treatment of irritability in children and adolescents with autism. The approval is the first for the use of a drug to treat behaviors associated with autism in children. These behaviors are included under the general heading of irritability and include aggression, deliberate self-injury, and temper tantrums.

Did you know?

Anesthesia awareness is a potentially disturbing adverse effect wherein patients who have been paralyzed with muscle relaxants may awaken. They may be aware of their surroundings but unable to communicate or move. Neurologic monitoring equipment that helps to more closely check the patient's anesthesia stages is now available to avoid the occurrence of anesthesia awareness.

Did you know?

Today, nearly 8 out of 10 pregnant women living with HIV (about 1.1 million), receive antiretrovirals.

Did you know?

Green tea is able to stop the scent of garlic or onion from causing bad breath.

Did you know?

Amphetamine poisoning can cause intravascular coagulation, circulatory collapse, rhabdomyolysis, ischemic colitis, acute psychosis, hyperthermia, respiratory distress syndrome, and pericarditis.

Detail of a butterfly wing Detail of a butterfly wing
An air ratchet is a very useful tool that allows fast removal and installation of fasteners, ... An air ratchet is a very useful tool that allows fast removal and installation of fasteners, ...
If debris gets into an oil pump, the drive or distributor shaft can twist and/or break. When this ... If debris gets into an oil pump, the drive or distributor shaft can twist and/or break. When this ...
A blow-off valve is used in some turbocharged systems to relieve boost pressure during ... A blow-off valve is used in some turbocharged systems to relieve boost pressure during ...
Reinstall the valve cover being careful to not pinch a wire or vacuum hose between the cover and ... Reinstall the valve cover being careful to not pinch a wire or vacuum hose between the cover and ...
Video: Medullary osmotic gradient - influencing factors

For a complete list of videos, visit our video library