Equipment used in OT-2

How many pins are there in a pin index system?

• 3.0
• 4.0
• 2.0
• 5.0

What is the use of oxygen flush?

• To decrease the pressure of oxygen
• To bypass the intermediate and low pressure system
• To give nitrous oxide gas

Which is true regarding oxygen flush?

• Oxygen indirectly reaches the machine outlet
• Oxygen bypasses the machine outlet
• Oxygen directly reaches the machine outlet
• Oxygen level is reduced

What is the other name of the first pressure reducing valve?

• Pressure increaser
• Flowmeter
• Pressure gauge
• Pressure regulator

What is the use of the first pressure regulating valve?

• To convert low pressure to high pressure
• To convert high variable pressure to low constant pressure
• To display the change in pressure
• To increase the pressure so that it is bearable to patient

What is the use of pressure regulator?

• To convert the pressure of gases in cylinders to working pressure.
• To add nitrous oxide to inhalational agents.
• To double the pressure of gases in cylinders.
• None of the above

First pressure reducing valve reduces the pressure to

• 200 psi
• 100 psi
• 20 psi
• 45-60 psi

What are the components of the intermediate pressure system?

• 1st pressure reducing valve Cylinders
• 2nd pressure reducing valves
• Common gas outlet
• 2nd pressure reducing valve further reduces the pressure.

2nd pressure reducing valve further reduces the pressure.

• True
• False

What is the use of oxygen failure alarm?

• Machine starts alarming if the pressure of oxygen is greater than 2000 psi
• Machine starts alarming if the pressure of nitrous oxide is less than 2000 psi
• Machine starts alarming if the pressure A of oxygen falls below a preset value
• None of the above