- (hA - h2)/ (h1 - h2)
- (h2 - hA)/ (h1 - h2)
- (h1 - h2)/ (hA - h2)
- (hA - h1)/ (h2 - h1)
1 Answers
Call
Talk Doctor Online in Bissoy App
A certain amount of current flows through a ring shaped coil with fixed number of turns. How does the magnetic induction B varies inside the coil if an iron core is threaded into coil without dimensional change of coil?
Answer: Option 2 Let'
1 Answers 5 views
Sensible heat factor is given by (where S.H. = Sensible heat, and L.H. = Latent heat)?
Answer: Option 1 Sensible Heat Ratio - SHR - is defined as the sensible heat or cooling load divided by the total heat or cooling load. SHR = qs / qt =...
1 Answers 3 views
Fourier's law of heat conduction is (where Q = Amount of heat flow through the body in unit time, A = Surface area of heat flow, taken at right angles to the direction of heat flow, dT = Temperature difference on the two faces of the body, dx = Thickness of the body, through which the heat flows, taken along the direction of heat flow, and k = Thermal conductivity of the body)?
Answer: Option 1 Fourier's law of heat conduction is k. A. (dT/dx) where Q = Amount of heat flow through the body in unit time, A = Surface area of heat...
1 Answers 1 views
If p₁, is the pressure of air entering the L.P. cylinder and p₂ is the pressure of air leaving the L.P. cylinder (or inter-cooler pressure), then the ratio of cylinder diameters for a single acting, two stage reciprocating air compressor with complete intercooling is given by (where D₁ = Dia. of L.P. cylinder, and D₂ = Dia. of H.P. cylinder)?
Answer: Option 3 If p₁, is the pressure of air entering the L.P. cylinder and p₂ is the pressure of air leaving the L.P. cylinder (or inter-cooler pressure), then the...
1 Answers 1 views
In case of sensible heating of air, the coil efficiency is given by (where B.P.F. = Bypass factor)?
Answer: Option 2 In case of sensible heating of air, the coil efficiency is given by 1 - B. P.F.
1 Answers 1 views
The bypass factor (B. P. F.) in case of sensible heating of air is (Where td₁ = Dry bulb temperature of air entering the heating coil, td₂ = Dry bulb temperature of air leaving the heating coil, and td₃ = Dry bulb temperature of heating coil)?
Answer: Option 2 The bypass factor (B. P. F.) in case of sensible heating of air is (td₃ - td₂)/(td₃ - td₁) Where, td₁ = Dry bulb temperature of air entering the...
1 Answers 1 views
The sensible heat factor during cooling and dehumidification process is given by (where h₁ = Enthalpy of air entering the cooling coil, h₂ = Enthalpy of air leaving the cooling coil, and hA = Enthalpy of air at the end of dehumidification process)?
Answer: Option 1 The sensible heat factor during cooling and dehumidification process is given by (hA - h2)/ (h1 - h2) where, h₁ = Enthalpy of air entering the cooling...
1 Answers 3 views
The bypass factor, in case of sensible cooling of air, is given by (where td₁ = Dry bulb temperature of air entering the cooling coil, td₂ = Dry bulb temperature of air leaving the cooling coil, and td₃ = Dry bulb temperature of the cooling coil)?
Answer: Option 2 The bypass factor, in case of sensible cooling of air, is given by (td₂ -td₃)/( td₁ -td₃) where td₁ = Dry bulb temperature of air entering the cooling...
1 Answers 1 views