What was a key design change for HFC-134A ac system versus CFC-1 AC SYSTEM?

What was a key design change for HFC-134A ac system versus CFC-1 AC SYSTEM?
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electric compressors
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If an hfc-134a AC system still has pressure after the first refrigerant recovery process is complete additional recovery is necessary until the system vacuum level remains stable for?

Description : If an hfc-134a AC system still has pressure after the first refrigerant recovery process is complete additional recovery is necessary until the system vacuum level remains stable for?

Last Answer : 5

If an hfc-134a AC system still has pressure after the first refrigerant recovery process is complete additional recovery is necessary until the system vacuum level remains stable for?

Description : If an hfc-134a AC system still has pressure after the first refrigerant recovery process is complete additional recovery is necessary until the system vacuum level remains stable for?

Last Answer : 5

What sae standards must be referred to on label of approved hfc-134a refrigerant recycling machines?

Description : What sae standards must be referred to on label of approved hfc-134a refrigerant recycling machines?

Last Answer : SAE J2210 or SAE J2788

Is sale of hfc-134a restricted?

Description : Is sale of hfc-134a restricted?

Last Answer : Feel Free to Answer

The amount of combustible escaping unconsumed from the furnace, depends upon the (A) Air supplied and furnace temperature (B) Burner design (thoroughness of mixing versus stratification) (C) Air preheat and the flow of gases in the furnace (mixing by induction, by acceleration or by change of direction) (D) All (A), (B) and (C)

Description : The amount of combustible escaping unconsumed from the furnace, depends upon the (A) Air supplied and furnace temperature (B) Burner design (thoroughness of mixing versus stratification) (C) Air preheat and the flow of ... , by acceleration or by change of direction) (D) All (A), (B) and (C)

Last Answer : (D) All (A), (B) and (C)

The potentiak difference across a 2H inductor as a function of time is shown in the figure. At time t=0, current is zero. Current versus time graph ac

Description : The potentiak difference across a 2H inductor as a function of time is shown in the figure. At time t=0, current is zero. Current versus time graph ac

Last Answer : The potentiak difference across a 2H inductor as a function of time is shown in the figure. At time t=0, ... across the inductor will be A. B. C. D.

What is the hfc of 52156169?

Description : What is the hfc of 52156169?

Last Answer : If you mean 52, 156 and 169 then the highest common factor is13

What is/are the credit rating agencies approved for the acceptance of public deposits by an HFC? A. The Credit Rating Information Services of India Ltd. (CRISIL) B. ICRA Ltd. C. Credit Analysis and Research Limited (CARE) D. FITCH Ratings India Pvt. Ltd. E. All of the Above

Description : What is/are the credit rating agencies approved for the acceptance of public deposits by an HFC? A. The Credit Rating Information Services of India Ltd. (CRISIL) B. ICRA Ltd. C. Credit Analysis and Research Limited (CARE) D. FITCH Ratings India Pvt. Ltd. E. All of the Above

Last Answer : E. All of the Above Explanation: The HFC having credit rating can accept more deposits as compared to an HFC without such rating. The following credit rating agencies have been approved for the above ... ♦ ICRA Ltd. ♦ Credit Analysis and Research Limited (CARE) ♦ FITCH Ratings India Pvt. Ltd.

An HFC is required to have Minimum net owned fund of ______ A. Rs. 100 lakhs B. Rs. 200 lakhs C. Rs. 500 lakhs D. Rs. 1000 lakhs E. None of the Above

Description : An HFC is required to have Minimum net owned fund of ______ A. Rs. 100 lakhs B. Rs. 200 lakhs C. Rs. 500 lakhs D. Rs. 1000 lakhs E. None of the Above

Last Answer : D. Rs. 1000 lakhs Explanation: For commencing the housing finance business, an HFC is required to have the following in addition to the requirements under the Companies Act, 1956: ♦ Certificate of registration from NHB ♦ Minimum net owned fund of Rs. 1000 lakhs

The HFC network uses _______ cable. A) twisted-pair B) coaxial C) fiber-optic D) acombination of (b) and (c)

Description : The HFC network uses _______ cable. A) twisted-pair B) coaxial C) fiber-optic D) acombination of (b) and (c)

Last Answer : fiber-optic

The secondgeneration of cable networks is called a(n) _________ network. A) HFC B) HCF C) CFH D) none of the above

Description : The secondgeneration of cable networks is called a(n) _________ network. A) HFC B) HCF C) CFH D) none of the above

Last Answer : HFC

Thestandard for datatransmission over an HFC network is called _______. A) MCNS B) DOCSIS C) CMTS D) ADSL

Description : Thestandard for datatransmission over an HFC network is called _______. A) MCNS B) DOCSIS C) CMTS D) ADSL

Last Answer : DOCSIS

Inan HFC network, the upstream data are modulated using the _______ modulation technique. A) QAM B) QPSK C) PCM D) ASK

Description : Inan HFC network, the upstream data are modulated using the _______ modulation technique. A) QAM B) QPSK C) PCM D) ASK

Last Answer : QPSK

Inan HFC network, the downstream data are modulated using the _______ modulation technique. A) PSK B) QAM C) PCM D) ASK

Description : Inan HFC network, the downstream data are modulated using the _______ modulation technique. A) PSK B) QAM C) PCM D) ASK

Last Answer : QAM

Fertilizer plant getting its hydrogen requirement partly from coke oven gas is (in India) situated at (A) Rourkela (under SAIL) (B) Barauni (under HFC) (C) Nangal (under NFL) (D) Talcher (under FCI)

Description : Fertilizer plant getting its hydrogen requirement partly from coke oven gas is (in India) situated at (A) Rourkela (under SAIL) (B) Barauni (under HFC) (C) Nangal (under NFL) (D) Talcher (under FCI)

Last Answer : (A) Rourkela (under SAIL)

Largest capacity nitrogenous fertiliser plants (2700 tons of NH3 per day) (2 Nos.) in India are located at (A) Thal-Vaishet (under RCF in Maharashtra) and Hazira (under IFFCO in Gujarat)(B) Talcher (Orissa) and Ramagundam (A.P.) both under FCI(C) Korba (M.P.) and Talcher (Orissa) both under FCI(D) Haldia (W.B) and Namrup (Assam) both under HFC

Description : Largest capacity nitrogenous fertiliser plants (2700 tons of NH3 per day) (2 Nos.) in India are located at (A) Thal-Vaishet (under RCF in Maharashtra) and Hazira (under IFFCO in Gujarat) (B) Talcher (Orissa) ... ) and Talcher (Orissa) both under FCI (D) Haldia (W.B) and Namrup (Assam) both under HFC

Last Answer : (A) Thal-Vaishet (under RCF in Maharashtra) and Hazira (under IFFCO in Gujarat)

CFC a byproduct in uranium enrichment process?

Description : CFC a byproduct in uranium enrichment process?

Last Answer : I can't give you a direct quote about chlorine, fluorine and carbon, as I haven't taken this stuff in about 3 years. BUT, Nuclear plants aren't really 100% clean. They are better obviously than coal or gas ... any entry level college chem book .. I sold mine long ago or I'd look it up for ya).

How does CFC gas damage the ozone layer in the atmosphere ?

Description : How does CFC gas damage the ozone layer in the atmosphere ?

Last Answer : When CFC gas is present in the stratosphere of the atmosphere, the sun's ultraviolet rays break it down and release chlorine. This free chlorine acts as a catalyst and breaks down ozone into oxygen.

What is CFC ?

Description : What is CFC ?

Last Answer : CFC is a harmful gas. Its full name is chloro fluoro carbon. Which converts ozone to oxygen.

Which destroys CFC or chlorofluoro carbon ?

Last Answer : CFC or chlorofluoro carbon destroys the weight layer

Why is CFC gas harmful ?

Last Answer : CFC gas is harmful to the environment as it creates holes in the ozone layer.

Who does online testing for Refrigerant CFC certicate?

Description : Who does online testing for Refrigerant CFC certicate?

Last Answer : Need Answer

In 2002 AD,CFC concentration of atmosphere was

Description : In 2002 AD,CFC concentration of atmosphere was

Last Answer : In 2002 AD,CFC concentration of atmosphere was A. 261 ppt B. 326 ppb C. 1750 ppb D. 368 ppm.

Chlorofluorocarbon (CFC) is mainly responsible for:

Description : Chlorofluorocarbon (CFC) is mainly responsible for:

Last Answer : Chlorofluorocarbon (CFC) is mainly responsible for: A. Reduction in ozone B. Ozone ... Formation of leghaemoglobin D. Enhance chlorophyll formation

CFC is not recommended to be used in refrigerators because they:

Description : CFC is not recommended to be used in refrigerators because they:

Last Answer : CFC is not recommended to be used in refrigerators because they: A. Increases temperature B. Cause allergic reaction C. Deplete ozone D. Both A and B

CFC s split up in strastosphere to release chlorine by the action of

Description : CFC s split up in strastosphere to release chlorine by the action of

Last Answer : CFC s split up in strastosphere to release chlorine by the action of A. UV-A B. UV-B C. UV-C D. All the above

Arrange `CFC, CH_(4), N_(2)O, and CO_(2)` in decreasing order according to their contribution in greenhouse effect:

Description : Arrange `CFC, CH_(4), N_(2)O, and CO_(2)` in decreasing order according to their contribution in greenhouse effect:

Last Answer : Arrange `CFC, CH_(4), N_(2)O, and CO_(2)` in decreasing order according to their contribution in greenhouse ... (2)` D. `CO_(2)gtCH_(4)gtCFCgtN_(2)O`

petroleum The major part of natural gas, petroleum and coal consist of _____. A. Carbon dioxide B. Chlorine C. Methane D. CFC

Description : petroleum The major part of natural gas, petroleum and coal consist of _____. A. Carbon dioxide B. Chlorine C. Methane D. CFC

Last Answer : ANSWER: C

Methane The major part of natural gas, petroleum and coal consist of _____. A. Carbon dioxide B. Chlorine C. Methane D. CFC

Description : Methane The major part of natural gas, petroleum and coal consist of _____. A. Carbon dioxide B. Chlorine C. Methane D. CFC

Last Answer : ANSWER: C

The major part of natural gas, petroleum and coal consist of _____. A. Carbon dioxide B. Chlorine C. Methane D. CFC

Description : The major part of natural gas, petroleum and coal consist of _____. A. Carbon dioxide B. Chlorine C. Methane D. CFC

Last Answer : ANSWER: C

The major part of natural gas, petroleum and coal consist of _____. A. Carbon dioxide B. Chlorine C. Methane D. CFC

Description : The major part of natural gas, petroleum and coal consist of _____. A. Carbon dioxide B. Chlorine C. Methane D. CFC

Last Answer : ANSWER: C

The major part of natural gas, petroleum and coal consist of _____. A. Carbon dioxide B. Chlorine C. Methane D. CFC

Description : The major part of natural gas, petroleum and coal consist of _____. A. Carbon dioxide B. Chlorine C. Methane D. CFC

Last Answer : ANSWER: C

The pollutant responsible for ozone holes is - (1) CO2 (2) SO2 (3) CO (4) CFC

Description : The pollutant responsible for ozone holes is - (1) CO2 (2) SO2 (3) CO (4) CFC

Last Answer : (4) CFC Explanation: Chlorofluorocarbons (CFCs) have been held responsible for the depletion of ozone layer. The manufacture of CFCs has been phased out under the Montreal Protocol, and they are being replaced with other products such as HFCs.

Industrial name of CFC?

Description : Industrial name of CFC?

Last Answer : Freon

The major part of natural gas, petroleum and coal consists of? A. Carbon B. Chlorine C. CFC D. Methane (Answer)

Description : The major part of natural gas, petroleum and coal consists of? A. Carbon B. Chlorine C. CFC D. Methane (Answer)

Last Answer : D. Methane (Answer)

Dangerous gas for depletion of ozone layer is: (A)Ethane (B) Methane (C)CFC (D) Carbon-dioxide

Description : Dangerous gas for depletion of ozone layer is: (A)Ethane (B) Methane (C)CFC (D) Carbon-dioxide

Last Answer : (C)CFC

Which of the following gases contributes maximum to global warming? (A) CFC (B) CO2 (C) Methane (D) NO 2

Description : Which of the following gases contributes maximum to global warming? (A) CFC (B) CO2 (C) Methane (D) NO 2

Last Answer : (C) Methane

Greenhouse gas having largest contribution to global warming A) Carbon dioxide (60%) (B) Nitrous oxide (5%) (C) Methane (15%) (D) CFC

Description : Greenhouse gas having largest contribution to global warming A) Carbon dioxide (60%) (B) Nitrous oxide (5%) (C) Methane (15%) (D) CFC

Last Answer : A) Carbon dioxide (60%)

Which of the following is a green house gas other than CO2? (A) Methane (B) Nitrous oxide (C) Chlorofluoro carbons (CFC) (D) All (A), (B) and (C)

Description : Which of the following is a green house gas other than CO2? (A) Methane (B) Nitrous oxide (C) Chlorofluoro carbons (CFC) (D) All (A), (B) and (C)

Last Answer : (D) All (A), (B) and (C)

Lung cancer & DNA breakage are the major ill effects of excessive ozone exposure to human beings. Ozone layer depletion in the atmosphere is mainly caused by the presence of (A) CO2 (B) SO2 (C) Hydrocarbons (D) CFC (chloro fluoro carbon)

Description : Lung cancer & DNA breakage are the major ill effects of excessive ozone exposure to human beings. Ozone layer depletion in the atmosphere is mainly caused by the presence of (A) CO2 (B) SO2 (C) Hydrocarbons (D) CFC (chloro fluoro carbon)

Last Answer : (D) CFC (chloro fluoro carbon)

Very small amount of air pollutants are present in stratosphere also; though most of the atmospheric pollutants are present in the troposphere. Which of the following atmospheric pollutants does not cause the ozone layer depletion in atmosphere at tremendous rate? (A) CO (B) SO2 (C) NOx (D) CFC (chloro fluoro carbons)

Description : Very small amount of air pollutants are present in stratosphere also; though most of the atmospheric pollutants are present in the troposphere. Which of the following atmospheric pollutants does not cause the ozone layer depletion ... rate? (A) CO (B) SO2 (C) NOx (D) CFC (chloro fluoro carbons)

Last Answer : (A) CO

CFC (chloro fluoro carbon) is very highly reactive in causing depletion of ozone layer in the atmosphere. Each atom of chlorine liberated from CFC is capable of decomposing __________ molecules of ozone. (A) 10 2 (B) 10 5 (C) 10 9 (D) 10 15

Description : CFC (chloro fluoro carbon) is very highly reactive in causing depletion of ozone layer in the atmosphere. Each atom of chlorine liberated from CFC is capable of decomposing __________ molecules of ozone. (A) 10 2 (B) 10 5 (C) 10 9 (D) 10 15

Last Answer : (B) 10 5

Which of the following GHGs has the longest atmospheric life time? a) CO2 b) CFC c) Sulfur Hexafluoride (SF6) d) perfluorocarbon (PFC)

Description : Which of the following GHGs has the longest atmospheric life time? a) CO2 b) CFC c) Sulfur Hexafluoride (SF6) d) perfluorocarbon (PFC)

Last Answer : d) perfluorocarbon (PFC)

This cause the depletion of ozone layer by decomposing ozone to oxygen . a) CFC b)UV radiations c)CO2 d)O2

Description : This cause the depletion of ozone layer by decomposing ozone to oxygen . a) CFC b)UV radiations c)CO2 d)O2

Last Answer : b)UV radiations

Role of CFC present in atmosphere is to a) Reduction in ozone b) Ozone formation c) Formation of leg haemoglobin a) Enhance chlorophyll formation.

Description : Role of CFC present in atmosphere is to a) Reduction in ozone b) Ozone formation c) Formation of leg haemoglobin a) Enhance chlorophyll formation.

Last Answer : a) Reduction in ozone

Which is not a green house gas? a) CFC b) CH4 c) CO d) H2

Description : Which is not a green house gas? a) CFC b) CH4 c) CO d) H2

Last Answer : a) CFC

Major aerosol pollutant in Jet Plane emission is a) SO2 b) CO c) CH4 d) CFC.

Description : Major aerosol pollutant in Jet Plane emission is a) SO2 b) CO c) CH4 d) CFC.

Last Answer : d) CFC.

The pollutant responsible for ozone holes is _____. (1) CO2 (2) SO2 (3) CO (4) CFC

Description : The pollutant responsible for ozone holes is _____. (1) CO2 (2) SO2 (3) CO (4) CFC

Last Answer : CFC

How to change template design of AC login page?

Description : How to change template design of AC login page?

Last Answer : If you think that the template is coded in HTML, then I'm guessing you can access it from a web browser. That would suggest that at least the output is HTML. Of course, that doesn't mean that ... from there: if you know the generating language than you can try inserting an include() or something.

Type of emission produced by one of the early radio transmitter in trains of damped RF ac waves where its oscillator is coupled to a long wire antenna, normally used in radio telegraph and having sidebands on its carrier. A. Digital emission B. Key emission C. Cycle emission D. Spark emission

Description : Type of emission produced by one of the early radio transmitter in trains of damped RF ac waves where its oscillator is coupled to a long wire antenna, normally used in radio telegraph and having sidebands on its carrier. A. Digital emission B. Key emission C. Cycle emission D. Spark emission

Last Answer : D. Spark emission