In sodium vapour lamp the function of the leak transformer is

In sodium vapour lamp the function of the leak transformer is (1) To stabilize the arc (2) To increase the supply voltage (3) Both (a) and (b) (4) None of the above 
by

1 Answer

Answer :

C
by

Related questions

The gas used in sodium vapour lamp is

Description : The gas used in sodium vapour lamp is  (1) argon (2) neon (3) nitrogen (4) oxygen

Last Answer : Argon

What is the difference between a sodium vapour lamp, Which gives out a yellowish colour illumination, and a mercury vapour lamp that gives out a white colour illumination?

Description : What is the difference between a sodium vapour lamp, Which gives out a yellowish colour illumination, and a mercury vapour lamp that gives out a white colour illumination?

Last Answer : Answer I: The light in Sodium Vapour lamp is from an atomic emission process whereas in Mercury Vapour Lamp it is, finally, from fluorescence emission. The mechanism of light emission in a sodium ... from a fluorescent lamp is moderate (60 lumens/watt) while the color-rendering index is high.

Explain with neat circuit diagram, low pressure mercury vapour lamp.

Description : Explain with neat circuit diagram, low pressure mercury vapour lamp.

Last Answer : Diagram of low pressure mercury vapour lamp:  Working:-  Whenever 1-ph, 230V, AC Supply is provided to the discharge tube of MVL initially to current will flow from Phase to the ... Capacitor: The function of power factor improvement capacitor is to improve the power factor 0.5 to 0.95 

Describe the construction of high pressure mercury vapour lamp with neat sketch

Description :  Describe the construction of high pressure mercury vapour lamp with neat sketch

Last Answer : Construction:-  It consists of an inner bulb generally of silicon, to withstand high temperatures. The bulb contains a small quantity of mercury and argon. It is protected by outer glass, this ... : The function of power factor improvement capacitor is to improve the power factor 0.5 to 0.95

Which of the following vapour/gas will give yellow colour in a filament lamp?

Description : Which of the following vapour/gas will give yellow colour in a filament lamp?   (a) Helium (b) Mercury (c) Magnesium (d) Sodium

Last Answer : Sodium

Sodium fluorescein: a. has a higher affinity for plasma protein than indocyanine green. b. does not leak from the choroidal vasculature. c. does not leak from normal retinal vasculature. d. emits light of longer wavelengths than the one it absorbs

Description : Sodium fluorescein: a. has a higher affinity for plasma protein than indocyanine green. b. does not leak from the choroidal vasculature. c. does not leak from normal retinal vasculature. d. emits light of longer wavelengths than the one it absorbs

Last Answer : does not leak from normal retinal vasculature.

When a fluorescent lamp has reached the end of its useful life, it should be replaced immediately, or the resultant flashing may _____________. A. blow the lamp's circuit breaker B. explode, causing glass to fly in all directions C. short circuit the ballast transformer D. damage the starter and the ballast

Description : When a fluorescent lamp has reached the end of its useful life, it should be replaced immediately, or the resultant flashing may _____________. A. blow the lamp's circuit breaker B. explode, ... fly in all directions C. short circuit the ballast transformer D. damage the starter and the ballast

Last Answer : Answer: D

The number of photons emitted in 10 hours by a 60 W sodium lamp `(lambda` of photon `= 6000 Å)`

Description : The number of photons emitted in 10 hours by a 60 W sodium lamp `(lambda` of photon `= 6000 Å)`

Last Answer : The number of photons emitted in 10 hours by a 60 W sodium lamp `(lambda` of photon `= 6000 Å)` A. `6. ... C. `8.40xx10^(23)` D. `3.40xx10^(23)`

A common fluorescent tube contains (a) sodium vapour (b) argon at low pressure (c) mercury vapour at low pressure (d) mercuric oxide and neon

Description : A common fluorescent tube contains (a) sodium vapour (b) argon at low pressure (c) mercury vapour at low pressure (d) mercuric oxide and neon

Last Answer : Ans:(c)

The most commonly used substances in fluorescent tubes are (a) sodium oxide and argon (b) sodium vapour and neon (c) mercury vapour and argon (d) mercuric oxide and neon

Description : The most commonly used substances in fluorescent tubes are (a) sodium oxide and argon (b) sodium vapour and neon (c) mercury vapour and argon (d) mercuric oxide and neon

Last Answer : Ans:(c)

Sodium vapour lamps glow with yellow colour. This is due to - (1) sublimation of sodium to emit yellow colour (2) the emission of excess energy absorbed by sodium atoms, in the yellow region of the spectrum (3) the low ionisation energy of sodium (4) its ability to absorb all other colours except yellow

Description : Sodium vapour lamps glow with yellow colour. This is due to - (1) sublimation of sodium to emit yellow colour (2) the emission of excess energy absorbed by sodium atoms, in the yellow region of the ... (3) the low ionisation energy of sodium (4) its ability to absorb all other colours except yellow

Last Answer : (2) the emission of excess energy absorbed by sodium atoms, in the yellow region of the spectrum Explanation: Sodium Vapour Lamps glow with yellow colour due to the emission of excess energy absorbed by sodium atoms, in the yellow region of the spectrum.

What is the most commonly used substance in fluorescent tubes? (1) Sodium oxide and argon (2) Sodium vapour and neon (3) Mercury vapour and argon (4) Mercury oxide and neon

Description : What is the most commonly used substance in fluorescent tubes? (1) Sodium oxide and argon (2) Sodium vapour and neon (3) Mercury vapour and argon (4) Mercury oxide and neon

Last Answer : (3) Mercury vapour and argon Explanation: A fluorescent lamp or fluorescent tube is a gas-discharge lamp that uses electricity to excite mercury vapour. it contains mercury vapour and ... A fluorescent lamp converts electrical power into useful light more efficiently than an incandescent lamp.

Sodium vapour lamps glow with yellow colour. This is due to (1) sublimation of sodium to emit yellow colour (2) the emission of excess energy absorbed by sodium atoms, in the yellow region of the spectrum (3) the low ionisation energy of sodium (4) its ability to absorb all other colours except yellow

Description : Sodium vapour lamps glow with yellow colour. This is due to (1) sublimation of sodium to emit yellow colour (2) the emission of excess energy absorbed by sodium atoms, in the yellow region of the ... (3) the low ionisation energy of sodium (4) its ability to absorb all other colours except yellow

Last Answer : the emission of excess energy absorbed by sodium atoms, in the yellow region of the spectrum

What is the most commonly used substance in fluorescent tubes? (1) Sodium oxide and argon (2) Sodium vapour and neon (3) Mercury vapour and argon (4) Mercury oxide and neon

Description : What is the most commonly used substance in fluorescent tubes? (1) Sodium oxide and argon (2) Sodium vapour and neon (3) Mercury vapour and argon (4) Mercury oxide and neon

Last Answer : Mercury vapour and argon

When a console indicating lamp burns out, attempts to renew it should not be made while maneuvering because _______________. A. the new lamp may be of a higher wattage and cause heat damage to the lens B. removing a faulty lamp usually causes an alarm to sound on the bridge C. attention should be paid only to engine orders D. a socket/wiring fault may cause a ground or short circuit to shut down a vital function

Description : When a console indicating lamp burns out, attempts to renew it should not be made while maneuvering because _______________. A. the new lamp may be of a higher wattage and cause heat damage to the lens ... D. a socket/wiring fault may cause a ground or short circuit to shut down a vital function

Last Answer : Answer: D

If there is no capillarity? A. It would be impossible to use a kerosene lamp B. The blotting paper would fail to function C. There would have been no plants on earth D. All of above (Answer)

Description : If there is no capillarity? A. It would be impossible to use a kerosene lamp B. The blotting paper would fail to function C. There would have been no plants on earth D. All of above (Answer)

Last Answer : D. All of above (Answer)

Application one lamp controlled from two places

Description : Application one lamp controlled from two places

Last Answer : Application one lamp controlled from two places: 1. For Stair case wiring 2. Hospital Wiring ( For operating the lamp in room and nursing station) 3. Bedroom Lighting. 

A lamp of 100W at 200V is supplied current at 100 volts. It will be equivalent to the lamp of:

Description : A lamp of 100W at 200V is supplied current at 100 volts. It will be equivalent to the lamp of:   a. 50W b. 40W c. 25W d. 10W 

Last Answer : A lamp of 100W at 200V is supplied current at 100 volts. It will be equivalent to the lamp of: 25W

The Lamp resistance of a mini-torch light, operating on 1.5 volts is classified as _____________resistance.

Description : The Lamp resistance of a mini-torch light, operating on 1.5 volts is classified as _____________resistance. A. Low B. Medium C. High D. None of these 

Last Answer : The Lamp resistance of a mini-torch light, operating on 1.5 volts is classified as Medium resistance.

Three lamps are connected in parallel across a 120 Volt source. If one lamp burns out, the remaining two will ...

Description : Three lamps are connected in parallel across a 120 Volt source. If one lamp burns out, the remaining two will be: A. Glow dimmer B. Glow brighter C. Not light D. Glow with the same brightness as before

Last Answer : Glow with the same brightness as before 

The hot resistance of a tungsten lamp is about 10 times the cold resistance. Accordingly, ...

Description : The hot resistance of a tungsten lamp is about 10 times the cold resistance. Accordingly, cold resistance of a 100 W, 200 V lamp will be

Last Answer : The hot resistance of a tungsten lamp is about 10 times the cold resistance. Accordingly, cold resistance of a 100 W, 200 V lamp will be 40 ohm.

The resistance of a 100 W, 200 V lamp is

Last Answer : The resistance of a 100 W, 200 V lamp is 400 ohm.

The ratio of the resistance of a 100 W, 220 V lamp to that of a 100 W, 110 V lamp will be nearly

Last Answer : The ratio of the resistance of a 100 W, 220 V lamp to that of a 100 W, 110 V lamp will be nearly 4.

The resistance of a 230 V, 100 W lamp is

Last Answer : The resistance of a 230 V, 100 W lamp is 529 Ω.

Which of the following has the lowest Prandtl number? (A) Molten sodium (a coolant used in fast breeder reactor) (B) Water (C) Transformer oil (D) Dilute H2SO4

Description : Which of the following has the lowest Prandtl number? (A) Molten sodium (a coolant used in fast breeder reactor) (B) Water (C) Transformer oil (D) Dilute H2SO4

Last Answer : (A) Molten sodium (a coolant used in fast breeder reactor)

Plate efficiency (A) Is a function of the mass transfer between liquid and vapour (B) Increases due to foaming (C) Increases due to liquid entrainment (D) Increases due to weeping and dumping of liquid

Description : Plate efficiency (A) Is a function of the mass transfer between liquid and vapour (B) Increases due to foaming (C) Increases due to liquid entrainment (D) Increases due to weeping and dumping of liquid

Last Answer : (A) Is a function of the mass transfer between liquid and vapour

A reasonably general expression for vapour-liquid phase equilibrium at low to moderate pressure is φi yi P = Yi xifi° where, Φ is a vapor fugacity component, Yiis the liquid activity co-efficient and fi° is the fugacity of the pure component i. the Ki value (Yi = Ki xi) is therefore, in general a function of (A) Temperature only (B) Temperature and pressure only (C) Temperature, pressure and liquid composition xi only (D) Temperature, pressure, liquid composition xi and vapour composition yi

Description : A reasonably general expression for vapour-liquid phase equilibrium at low to moderate pressure is φi yi P = Yi xifi° where, Φ is a vapor fugacity component, Yiis the liquid activity co- ... and liquid composition xi only (D) Temperature, pressure, liquid composition xi and vapour composition yi

Last Answer : (C) Temperature, pressure and liquid composition xi only

The burnout heat flux in the nucleate boiling regime is not a function of the (A) Liquid density (B) Vapour density (C) Temperature difference (D) Heat of evaporation

Description : The burnout heat flux in the nucleate boiling regime is not a function of the (A) Liquid density (B) Vapour density (C) Temperature difference (D) Heat of evaporation

Last Answer : (B) Vapour density

function of equipment’s used in sub-stations : (i) Earth Switch (ii) Relay (iii) Lighting Arrester (iv) Auxiliary transformer

Description : function of equipment’s used in sub-stations : (i) Earth Switch (ii) Relay (iii) Lighting Arrester (iv) Auxiliary transformer 

Last Answer : (i) Earth Switch   It's function is to discharge the ground capacitance when line is open circuited for maintenance purpose by isolator.) Earthing switch is inter - locked with isolator from the safety point ... 3-ph, 4wire, 400V) to give supply to control room, area lighting, staff quarters etc, 

Do I have a roof leak and can I test with this meter?

Description : Do I have a roof leak and can I test with this meter?

Last Answer : No meter is used. Any roofer or inspector climbs into the attic and looks for water stains on the underside of the roof to determine if there is a leak and where it is.

If you try to search Spontaneous Cerebro-Spinal Fluid Leak" how do you search it?

Description : If you try to search Spontaneous Cerebro-Spinal Fluid Leak" how do you search it?

Last Answer : Searching on “spontaneous cerebrospinal fluid leak” brought up several valid results for me.

I want to claim water damage from a leak in my house. I've heard this is a red flag for ever selling your house. Is this true?

Description : I want to claim water damage from a leak in my house. I've heard this is a red flag for ever selling your house. Is this true?

Last Answer : answer:It does have to get disclosed. even if it is fully repaired, etc., it has to be disclosed. It’s only an issue when buyers can be picky. In Northern California right now it would be ignored as long as the dry rot inspection cleared with no concerns.

What would make an acrylic fish tank leak intermittently?

Description : What would make an acrylic fish tank leak intermittently?

Last Answer : answer:I think you probably have a micro-fracture. I found a forum that talks about that; http://www.reefcentral.com/forums/showthread.php?t=1920273 Maybe a coat of clear non-toxic ... univ&tbm=shop&tbo=u&sa=X&ei=3FMwUsS4KOjF2AWXyYAQ&ved=0CDoQsxg&biw=1920&bih=977 That's all I got. I hope it helps?

What makes a glass coffee pot with attached lid leak when you pour it?

Description : What makes a glass coffee pot with attached lid leak when you pour it?

Last Answer : answer:Well, since water finds its own level, there is clearly a leak somewhere. A crack doesn’t have to be very wide to allow fluid to leak through. If you don’t want to spend any more energy on the mystery, throw the pot out and buy a new one. A hinged lid can be slightly bent.

Power steering hose leak dangerous?

Description : Power steering hose leak dangerous?

Last Answer : I am not a fan of having flammable liquid spraying under my hood where it may hit metal that is hot enough to sear a steak. It may smoke now, but there is a definite non-zero chance of it ... the hood right now and end the suspense. Hoses are a cheap fix anyways, probably cheaper than stop-leak.

Photographers: I didn't put a frame inside my Diana F+. Will there be a ton of light leak inside the camera?

Description : Photographers: I didn't put a frame inside my Diana F+. Will there be a ton of light leak inside the camera?

Last Answer : You can see the frames in this video on YouTube.

Can I mix normal power steering fluid with the lucas power steering stop leak?

Description : Can I mix normal power steering fluid with the lucas power steering stop leak?

Last Answer : Also my car Manuel doesn’t say what PS fluid I should use. I don’t get it. Can’t I just go buy some power steering fluid? What does it need to be?

What's up with glass beverage dispensers leaking? Do they all leak or is there something I needed to do to prevent it?

Description : What's up with glass beverage dispensers leaking? Do they all leak or is there something I needed to do to prevent it?

Last Answer : I would return it. To me it sounds faulty. Maybe that one is just not functioning correctly? I serve sangria in a pitcher.

Neighbor's daughter secret exposed, do you keep it or leak it?

Description : Neighbor's daughter secret exposed, do you keep it or leak it?

Last Answer : answer:I'd never go to a strip club, yet alone sit through three acts, but if I were the subject laid out in your scenario, I'd mind my own business. You don't know the back story of the other ... not tell because I wouldn't want my neighbors to know I frequent strip clubs, so that's a muted bonus.

Why does Kenmore Coldspot fridge Leak?

Description : Why does Kenmore Coldspot fridge Leak?

Last Answer : Check the connections. You probably have a loose connection that is not sealed properly. Where the water line coming into the ice maker connects to the ice maker would be my guess.

Can you help me engineer this leak detection system for organic solvents?

Description : Can you help me engineer this leak detection system for organic solvents?

Last Answer : answer:I'm sorry that I may not be qualified to answer this question, but these are my ideas. If argon is what will be leaking, you could have some sort of argon detector, and some sort of ... when there are no leaks. Any drop in pressure would signal a leak. Look up pressure decay leak detection.

Could a virus leak from virtualbox into my real OS?

Description : Could a virus leak from virtualbox into my real OS?

Last Answer : answer:Are you on the internet with that machine? It is possible for the virus on a dual boot or virtual machine to cross over.

Does anyone know how to fix a leak you can't find!

Description : Does anyone know how to fix a leak you can't find!

Last Answer : Maybe you could put a fluorescent dye into the water line, and then go around with a black light. Other possibilities include summoning a plumber and duct-taping the living daylights out of everything.

Say, that you had a water leak in your basement and water damaged the drywall, how long would black mold take to develop?

Description : Say, that you had a water leak in your basement and water damaged the drywall, how long would black mold take to develop?

Last Answer : answer:I don't think I would wait to find out. I think insurance should cover fixing the damage. If black mold gets in-well, you probably already know how bad that is. I would think it could arrive in a few ... go clean it out. I don't know what kind of mold it is, but it goes when I clean it.

Is there currently any greater problem in the world than figuring out how to plug the BP oil leak?

Description : Is there currently any greater problem in the world than figuring out how to plug the BP oil leak?

Last Answer : Oh, over harvesting of all major fish stocks, causing a crash. Global warming causing polar ice melt and rising water levels. The destruction of fresh water reservoirs. A crash in food production from the use of monoculture. The list goes on and on and on and on….

Could the threat of criminal action against BP dis-incentiveize them from stopping the leak?

Description : Could the threat of criminal action against BP dis-incentiveize them from stopping the leak?

Last Answer : I expect they would assume they will be able to cut a deal on criminal charges or fines if they are seen to be stopping the leak. I don't hold any brief for their morality as a company from what I' ... , but I don't think they will be able to walk away from the problem unless they go totally broke.

Should we Nuke the oil leak in the gulf?

Description : Should we Nuke the oil leak in the gulf?

Last Answer : Gadzooks! Someone who had the same line of thought I had. However many Americans could never stomach that even if they can't stand the oil. Now if they had an aqua version of GBU-43/B MOAB or in this ... it worse and no one would be willing to take the blame if it failed, or pay for the damage.

I have a leak in a copper pipe. Is there any easy fix for this?

Description : I have a leak in a copper pipe. Is there any easy fix for this?

Last Answer : Insert Billy Mays voice: “MIGHTY PUTTY!”

What if someone linked to a leak of a song and then the artist who made the track?

Description : What if someone linked to a leak of a song and then the artist who made the track?

Last Answer : He’d probably be pissed and might even get his attorney involved? Maybe?

Is there a decent cheap pen that won't leak when upside down?

Description : Is there a decent cheap pen that won't leak when upside down?

Last Answer : get a pen with a cap?