Fittings of Steel Trough and CI Sleepers Online Exam Quiz
Fittings of Steel Trough and CI Sleepers GK Quiz. Question and Answers related to Fittings of Steel Trough and CI Sleepers. MCQ (Multiple Choice Questions with answers about Fittings of Steel Trough and CI Sleepers
In domestic vapor compression refrigeration, the refrigerant commonly used is?
Options
A : Freon ? 12
B : CO2
C : H2O
D : Ammonia
Superheating before compression increases the refrigeration effect.
Options
A : TRUE
B : FALSE
C : -
D : -
The COP of vapor compression when vapor is superheated after compression having refrigeration effect (Re) of 360 and work done (W) of 40 is?
Options
A : 8
B : 6.7
C : 7.8
D : 9
The cycle in which the evaporation starts at point 4 and continues up to point 1 where it is dry-saturated is called?^
Options
A : Theoretical VCR with dry vapor compression
B : Theoretical VCR with wet vapor compression
C : Theoretical VCR with super ? heated vapor after compression
D : Theoretical VCR with super ? heated vapor before compression
The net effect of superheating is to have __ COP.
Options
A : higher
B : lower
C : moderate
D : higher or lower depending on the refrigerant used
What is the COP of performance of the plant when the vapor is superheated 5 degree C before entering the compressor and^ H1 ? Enthalpy before compression = 180^ H2 ? Enthalpy after compression = 215^ Hf3 ? Enthalpy at the end of condensation = 55^ H4 ? Enthalpy at the end of expansion = 55^
Options
A : 5.7
B : 4.8
C : 4.7
D : 3.5
What is the mass flow rate of the refrigerant when the heat required is 100 MJ/hr, enthalpy at discharge H2 is 434.5 KJ/kg and enthalpy of liquid Hf3 in KJ/kg at point 3 in p-h diagram is 271.97?
Options
A : 10.254 kg/hr
B : 15.56 kg/hr
C : 10.254 kg/min
D : 15.56 kg/min
Fittings of Steel Trough and CI Sleepers more Online Exam Quiz
Principles and Classifications of Prestressing
New Protein Molecule Design - Phage Display
Comfort Conditions - Factors Affecting Optimum Effective Temperature