Download PASSEMALL Prep app now
Scan QR code or get instant email to install app
Question:
Comments
Your email address will not be published. Required fields are marked *
Comment *
Name*
Email*
URL
Save my name, email, and website in this browser for the next time I comment.
When Carbon dioxide is present in the condenser water, the water will turn ______with addition of bromothymol blue:
Yellow
The _____ controls only the suction gas superheat at the evaporator outlet:
TEV
Magnesium alloys and Aluminum containing more than ______ of magnesium is not recommended for use in system containing Freon compounds in presence of water:
2%
The volumetric efficiency of the compressor reduces as the evaporating temperature ______
Falls
Acetylene must be used to pressurize a refrigeration system:
False
As the condensing temperature increases, centrifugal compressor capacity _______ :
Decreases
The lower the molecular weight of the refrigerant, the ______ the hole must be required for the refrigerant to escape:
smaller
Which of the following type of refrigerant cool substances by absorbing their sensible heats:
Class 2
_____ is the weight of the moisture in the unit mass of dry air:
Specific humidity
Screw compressor is a positive displacement compressor:
True
When the liquid level is below the sensing bulb, the vapor surrounding the bulb carries away the heat from the electric heater at relatively ____ rate:
Slow
Which of the following property is desirable for a refrigerant:
Operating on positive pressure
Inside the condenser or in the liquid line, when liquid is sub-cooled, then there is no change in pressure:
A worker adversely affected by fluorocarbon vapors should be treated with adrenaline (epinephrine):
Comments