What is the function of hammer blow mechanism?

What is the function of hammer blow mechanism? 
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1 Answer

Answer :

Hammer blow mechanism allows motor to rotate freely for ½ or ¼ turn and the dog teeth on worm gear comes against the dog teeth on sliding clutch with a blow. This is use full when valve is stuck in fully open or closed condition. 
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Related questions

A pile is being driven with a drop hammer weighing 1800 kg and having a free fall of 1.00 m. If the penetration with last blow is 5 mm, the load carrying capacity of the pile, -according to the Engineering News formula, is (A) 100 tonnes (B) 50 tonnes (C) 20 tonnes (D) 10 tonnes

Description : A pile is being driven with a drop hammer weighing 1800 kg and having a free fall of 1.00 m. If the penetration with last blow is 5 mm, the load carrying capacity of the pile, -according to the Engineering News formula, is (A) 100 tonnes (B) 50 tonnes (C) 20 tonnes (D) 10 tonnes

Last Answer : (D) 10 tonnes

The pressure of fluid due to hammer blow is (A) Directly proportional to density of fluid (B) Inversely proportional to density of fluid (C) Directly proportional to (density)1/2 of fluid (D) Inversely proportional to (density)1/2 of fluid

Description : The pressure of fluid due to hammer blow is (A) Directly proportional to density of fluid (B) Inversely proportional to density of fluid (C) Directly proportional to (density)1/2 of fluid (D) Inversely proportional to (density)1/2 of fluid

Last Answer : Answer: Option C

The hammer blow in pipes occurs when (A) There is excessive leakage in the pipe (B) The pipe bursts under high pressure of fluid(C) The flow of fluid through the pipe is suddenly brought to rest by closing of the valve (D) The flow of fluid through the pipe is gradually brought to rest by closing of the valve

Description : The hammer blow in pipes occurs when (A) There is excessive leakage in the pipe (B) The pipe bursts under high pressure of fluid (C) The flow of fluid through the pipe is suddenly brought to ... valve (D) The flow of fluid through the pipe is gradually brought to rest by closing of the valve

Last Answer : Answer: Option C

The mechanism of size reduction by a hammer mill is by impact and attrition between the (A) Grinding element & the housing (B) Feed particles (C) Both (A) and (B) (D) Neither (A) nor (B)

Description : The mechanism of size reduction by a hammer mill is by impact and attrition between the (A) Grinding element & the housing (B) Feed particles (C) Both (A) and (B) (D) Neither (A) nor (B)

Last Answer : (C) Both (A) and (B)

The most effective method of locating a loose commutator bar in a D.C. motor is by _____________. A. visual inspection B. jiggling each by hand C. sounding each bar with a light weight hammer D. checking with a calibrated torque wrench

Description : The most effective method of locating a loose commutator bar in a D.C. motor is by _____________. A. visual inspection B. jiggling each by hand C. sounding each bar with a light weight hammer D. checking with a calibrated torque wrench

Last Answer : Answer: C

Encrusted dirt accumulated inside a motor should be removed with a _____________. A. fiber scraper B. pointed welding rod C. hammer and chisel D. paint scraper

Description : Encrusted dirt accumulated inside a motor should be removed with a _____________. A. fiber scraper B. pointed welding rod C. hammer and chisel D. paint scraper

Last Answer : Answer: A

When removing ball or roller bearings from the shaft of a motor, you should use a _____________. A. rawhide hammer B. brass mallet C. wheel puller D. soft iron pry bar

Description : When removing ball or roller bearings from the shaft of a motor, you should use a _____________. A. rawhide hammer B. brass mallet C. wheel puller D. soft iron pry bar

Last Answer : Answer: C

Which of the following statements, concerning the general maintenance of a brushless generator, is correct? A. Paint should be applied to insulating surfaces on an annual basis. B. Alcohol should be used to remove dust and grime from windings. C. High pressure air should be used to blow out carbon dust. D. Accessible generator parts should be wiped with a clean dry rag on a periodic basis.

Description : Which of the following statements, concerning the general maintenance of a brushless generator, is correct? A. Paint should be applied to insulating surfaces on an annual basis. B. Alcohol should be used to ... . D. Accessible generator parts should be wiped with a clean dry rag on a periodic basis.

Last Answer : Answer: D

A fuse will 'blow' if _____________. A. an electric motor is stopped suddenly by opening a switch B. the flow of current to the protection device is reversed C. the electrical current exceeds the rated value of the fuse D. unequal resistors are connected in parallel

Description : A fuse will 'blow' if _____________. A. an electric motor is stopped suddenly by opening a switch B. the flow of current to the protection device is reversed C. the electrical current exceeds the rated value of the fuse D. unequal resistors are connected in parallel

Last Answer : Answer: C

In addition to short circuits and sustained overloads, fuses are likely to blow due to _____________. A. loose fuse clips B. low ambient temperatures C. low contact resistance D. all of the above

Description : In addition to short circuits and sustained overloads, fuses are likely to blow due to _____________. A. loose fuse clips B. low ambient temperatures C. low contact resistance D. all of the above

Last Answer : Answer: A

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

If a small electric motor has been submerged in saltwater for a short period of time, you should _____________. A. send it ashore for rewinding B. rinse it with warm freshwater and bake it dry in an oven C. soak it in a bucket of commercial solvent and bake with internal heat D. clean it with carbon tetrachloride and blow it out with compressed air

Description : If a small electric motor has been submerged in saltwater for a short period of time, you should _____________. A. send it ashore for rewinding B. rinse it with warm freshwater and bake it dry ... and bake with internal heat D. clean it with carbon tetrachloride and blow it out with compressed air

Last Answer : Answer: B

A fuse will blow for all the listed reasons EXCEPT ________. A. excessive vibration B. extremely hot surroundings C. loose fuse clips D. low contact resistance within the fuse

Description : A fuse will blow for all the listed reasons EXCEPT ________. A. excessive vibration B. extremely hot surroundings C. loose fuse clips D. low contact resistance within the fuse

Last Answer : Answer: D

Which of the following conditions is most likely to occur if a single element fuse were used to replace a blown dual element fuse in a motor controller circuit? A. The fuse will blow when the motor is started. B. The fuse works, but overheats at high motor loads. C. The motor runs at reduced voltage. D. The motor runs normally.

Description : Which of the following conditions is most likely to occur if a single element fuse were used to replace a blown dual element fuse in a motor controller circuit? A. The fuse will blow when the motor ... overheats at high motor loads. C. The motor runs at reduced voltage. D. The motor runs normally.

Last Answer : Answer: A

Which of the following statements is true concerning the cleaning of electrical contacts? A. Compressed air should be used to blow out metallic dust. B. Magnetic brushes should be used to remove metallic dust. C. The contact surfaces should be greased to increase contact resistance. D. Delicate parts should be cleaned with a brush and an approved safety solvent.

Description : Which of the following statements is true concerning the cleaning of electrical contacts? A. Compressed air should be used to blow out metallic dust. B. Magnetic brushes should be used to remove ... contact resistance. D. Delicate parts should be cleaned with a brush and an approved safety solvent.

Last Answer : Answer: D

To repair a small electrical motor that has been submerged in saltwater, you should _____________. A. wash it with fresh water and apply an external source of heat B. renew the windings C. send it ashore to an approved service facility D. rinse all electrical parts with a carbon tetrachloride cleaning solvent and then blow dry the motor with compressed air

Description : To repair a small electrical motor that has been submerged in saltwater, you should _____________. A. wash it with fresh water and apply an external source of heat B. renew the windings ... electrical parts with a carbon tetrachloride cleaning solvent and then blow dry the motor with compressed air

Last Answer : Answer: A

A single-phase induction motor will only start if you spin the rotor rapidly with the line switch closed. After starting, its speed fluctuates between very slow and half-speed. The problem probably lies in the ________. A. starting winding B. centrifugal mechanism C. centrifugal switch D. running winding

Description : A single-phase induction motor will only start if you spin the rotor rapidly with the line switch closed. After starting, its speed fluctuates between very slow and half-speed. The problem ... in the ________. A. starting winding B. centrifugal mechanism C. centrifugal switch D. running winding

Last Answer : Answer: D

A single-phase induction motor fails to start. The rotor is spun rapidly with the line switch closed. Having started by this method it is noted that the motor fluctuates between a very slow speed and half speed. The problem probably lies in the ______ A. starting winding B. centrifugal mechanism C. centrifugal switch D. running winding

Description : A single-phase induction motor fails to start. The rotor is spun rapidly with the line switch closed. Having started by this method it is noted that the motor fluctuates between a very slow ... lies in the ______ A. starting winding B. centrifugal mechanism C. centrifugal switch D. running winding

Last Answer : Answer: D

What does the torque switch mechanism senses to operate?

Description : What does the torque switch mechanism senses to operate? 

Last Answer : Torque switch senses whether the torque of motor has exceeded the set point irrespective of position of valve. 

What does the limit switch mechanism senses to operate?

Description : What does the limit switch mechanism senses to operate? 

Last Answer : Limit switch mechanism senses whether the open and close travel of the motor has exceeded the limit setting of the motor to operate. 

What is the ambient temperature in hammer-space?

Description : What is the ambient temperature in hammer-space?

Last Answer : The temperature of hammerspace is around 294 degrees Kelvin. This temperature is maintained by the transdimensional fold or warp energy produced when objects are brought into or taken out of hammerspace. To ... to the second law of thermodynamics, is manifested as heat. Doesn't everyone know that?

This is the most important question ever asked in the history of humanity. Could Son Goku lift up Thor's hammer?

Description : This is the most important question ever asked in the history of humanity. Could Son Goku lift up Thor's hammer?

Last Answer : I despair for humanity if this is the most important question confronting it. All is lost!

How long does discoloration last from having bashed my nail with a hammer?

Description : How long does discoloration last from having bashed my nail with a hammer?

Last Answer : That's not all that long for it to last and it's small so I wouldn't worry about it too much. I've done it so the entire nail turns black and eventually falls off. That's usually quicker, about two to ... out, but it doesn't sound that bad that you need to do that. And don't try it on your own.

Could BP's closing off the well create a hydraulic hammer?

Description : Could BP's closing off the well create a hydraulic hammer?

Last Answer : answer:That is why they closed the valves off gradually, to allow the pressure to build up slowly. Also - this is not entirely hydraulic. There is a considerable amount of methane in the flow, which ... Potentially, you have more of a blowout risk from the gas pressure than you do from the oil.

What can you fix with a hammer and duct tape?

Description : What can you fix with a hammer and duct tape?

Last Answer : Everything. Might not work or last. But you can “fix” it.

Hammer flipping mystery (see details)

Description : Hammer flipping mystery (see details)

Last Answer : answer:well i believe that it is simply that the differences in mass cause a torque about the handle, causing it to spin, but it may not be as simple as that. i also like the tags for this question :)

To kill a fly with a hammer: a language question.

Description : To kill a fly with a hammer: a language question.

Last Answer : answer:I’m not fully understanding what you’re asking here. There’s a clear escalation in the four possible endings you suggested. But what about it is supposed to trouble me? If I thought you were going to eat the cookie and you said I was on crack? I could use a cookie…

A hammer gains 50 Ns momentum in 0.05 sec. The average force on the hammer will be a.500 N b.2000 N c.1500 N d.107 dynes e.1000 N

Description : A hammer gains 50 Ns momentum in 0.05 sec. The average force on the hammer will be a.500 N b.2000 N c.1500 N d.107 dynes e.1000 N

Last Answer : e. 1000 N

The fight is almost coming to an end after a five minute battle. Team one lost all of the members, except for leader Joe who carries a big hammer, which is very dangerous and strong. Team two had two remaining people with no leader but one person who uses a bat and one person that uses an axe. Team two tried cornering Leader Joe, who then surrendered. Despite the fact that leader Joe had a bigger and much more dangerous weapon than the two on the other team, why did he surrender? -Riddles

Description : The fight is almost coming to an end after a five minute battle. Team one lost all of the members, except for leader Joe who carries a big hammer, which is very dangerous and strong. Team two ... bigger and much more dangerous weapon than the two on the other team, why did he surrender? -Riddles

Last Answer : It was a checkmate!

Write the missing half of each word pair ?11. Peace and12. Thunder and13. Back and14. Thick and15. Tooth and16. Sticks and17. Aches and18. Bread and19. Hammer and20. Hide and -Riddles

Description : Write the missing half of each word pair ?11. Peace and12. Thunder and13. Back and14. Thick and15. Tooth and16. Sticks and17. Aches and18. Bread and19. Hammer and20. Hide and -Riddles

Last Answer : 11. Quiet 12. Lightning 13. Forth 14. Thin 15. Nail 16. Stones 17. Pains 18. Butter 19. Nail 20. Seek

I can slash but I have no knife, I can dash but I have no legs, I can pound but I have no hammer, I can star but I have no stage.What am I? -Riddles

Description : I can slash but I have no knife, I can dash but I have no legs, I can pound but I have no hammer, I can star but I have no stage.What am I? -Riddles

Last Answer : A Keyboard.

What is the energy conversion of a hammer and strikes a nail into a plank?

Description : What is the energy conversion of a hammer and strikes a nail into a plank?

Last Answer : john lifts a hammer and strikes a nail into a plank. Which of the following energy conversion take place?a. Kinetic energy→potential energy→heat and sound energy b. ... energyc. Kinetic energy→potential energy→heat energy→sound energyd. Potential energy→heat energy →sound energy and kinetic energy

john lifts a hammer and strikes a nail into a plank. Which of the following energy conversion take place?

Description : john lifts a hammer and strikes a nail into a plank. Which of the following energy conversion take place?

Last Answer : a. Kinetic energy→potential energy→heat and sound energy b. Potential energy→kinetic energy→heat and sound energyc. Kinetic energy→potential energy→heat energy→sound energyd. Potential energy→heat energy →sound energy and kinetic energy

Does the back of the head hurt like a hammer after a while ? What are the symptoms ?

Description : Does the back of the head hurt like a hammer after a while ? What are the symptoms ?

Last Answer : answer:

What kind of scales does hammer fish have ?

Description : What kind of scales does hammer fish have ?

Last Answer : Hammer fish has placoid type scales on its body.

What is a hammer ?

Description : What is a hammer ?

Last Answer : Hammer or hammer , hammer or hammer is called hammer.

Why is the smooth thicker drawing quarter called 'hammer'?

Description : I can't think of any connection .... or maybe this name is somehow related to the production process?

Last Answer : In the background of the term hammer paper is the logo of the Schoellershammer paper mill, which has been operating in North Rhine-Westphalia, Germany, for about 200 years. In the name of the founder of ... paper from this paper mill used to be marked with an embossed mark in the shape of a hammer.

How to set a hammer on a roof?

Description : I don't want to start my motorcycle. Mustang 50 (roof). How far are the hammers set? Thank you

Last Answer : I guess at 1.6 mm. The advance value is the displacement of the piston from the top dead center to the closing of the breaker contacts when turning the crank counterclockwise. We adjust by turning ... oil so that the breaker tappet is not abraded and thus the detachment is not detuned in advance.

I burned a cd of hammer sounds and it will not play on a cd player it will only play on my laptop

Description : I burned a cd of hammer sounds and it will not play on a cd player it will only play on my laptop

Last Answer : Need Answer

What role did Fannie Lou Hammer play in the civil rights movement

Description : What role did Fannie Lou Hammer play in the civil rights movement

Last Answer : Need Answer

What eats a northern hammer hawk eat?

Description : What eats a northern hammer hawk eat?

Last Answer : Need answer

If the gravitational force between the earth and object always causes the same acceleration why does a feather fall more slowly than a hammer does?

Description : If the gravitational force between the earth and object always causes the same acceleration why does a feather fall more slowly than a hammer does?

Last Answer : Need answer

What is a good personification for hammer?

Description : What is a good personification for hammer?

Last Answer : a hammer danced on the wood

How is the red soft face hammer insert classified per the hardness matrix?

Description : How is the red soft face hammer insert classified per the hardness matrix?

Last Answer : extra hard

How does James gleick suggest a book and hammer are alike?

Description : How does James gleick suggest a book and hammer are alike?

Last Answer : H

What is the proper name for the hammer a doctor uses to test your reflex?

Description : What is the proper name for the hammer a doctor uses to test your reflex?

Last Answer : The proper name for the hammer a doctor uses to test your reflex is just "reflex hammer". It is a medical instrument used by physicians to test deep tendon reflexes and is an important part of a neurological physical examination.

Is it possible to fix a fiber glass hammer handle?

Description : Is it possible to fix a fiber glass hammer handle?

Last Answer : Unfortunately, fiberglass is very difficult to fix. It may be best to purchase a new hammer.

Is it true that actor armie hammer is secretly a bisexual?

Description : Is it true that actor armie hammer is secretly a bisexual?

Last Answer : yes

Can a hammer toe be treated without surgery?

Description : Can a hammer toe be treated without surgery?

Last Answer : If you are able to straighten the toe by pulling on it, then it can be treated without surgery. A podiatrist can use padding or splint the toe to help keep it straight, and a switch to deeper shoes with more room in the toe area will help keep all toes in a more natural position.