What Are The Uses Of Jockey Pulley?

What Are The Uses Of Jockey Pulley?
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1 Answer

Answer :

Jockey pulley is used to increase the contacting area in between the belt and pulley and also used to press the belt for giving tension.
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If w is the angular velocity of the pulley and T1 and T2 are tensions of driving and driven side then power transmitted equals a.(T1 + T2) w b.(T1 + 2T2) w c.107 dynes d.(T1 - T2) w e.wT1

Description : If w is the angular velocity of the pulley and T1 and T2 are tensions of driving and driven side then power transmitted equals a.(T1 + T2) w b.(T1 + 2T2) w c.107 dynes d.(T1 - T2) w e.wT1

Last Answer : d. (T1 - T2) w

In the second system of pulleys, if there are two pulley blocks having 'n1' and 'n2' pulleys in the first and second pulley blocks respectively, then the velocity ratio of the whole system will be equal to a.2n1 + n2 b.n1 - n2 c.107 dynes d.2n1 + 2n2 e.n1 + n2

Description : In the second system of pulleys, if there are two pulley blocks having 'n1' and 'n2' pulleys in the first and second pulley blocks respectively, then the velocity ratio of the whole system will be equal to a.2n1 + n2 b.n1 - n2 c.107 dynes d.2n1 + 2n2 e.n1 + n2

Last Answer : b. n1 - n2

The number of revolutions through which a pulley will rotate from rest if its angular acceleration is increased uniformly from zero to 12 rad per sec2 during 4 sec and then uniformly decreased to 0 rad per sec2 during the next 3 sec would be a.46.4 b.26.74 c.11.6 d.3.2 e.17.7

Description : The number of revolutions through which a pulley will rotate from rest if its angular acceleration is increased uniformly from zero to 12 rad per sec2 during 4 sec and then uniformly decreased to 0 rad per sec2 during the next 3 sec would be a.46.4 b.26.74 c.11.6 d.3.2 e.17.7

Last Answer : b. 26.74

Explain About Pulley Block?

Description : Explain About Pulley Block?

Last Answer : Pulley block is a block in which two or three group of pulleys are used with a rope to lift and heavy loads. The load is tied in the hook of the movable block and the effort is applied at the end of the rope which comes through the fixed pulley block.

If chauffeur is to car then what is jockey to?

Description : If chauffeur is to car then what is jockey to?

Last Answer : Dear is to post as blind is to

In what state can you find the jockey ridge state park?

Description : In what state can you find the jockey ridge state park?

Last Answer : Feel Free to Answer

. The voice on the radio was of a) Radio jockey b) Flight attendant c) Ground crew d) Air crew

Description : . The voice on the radio was of a) Radio jockey b) Flight attendant c) Ground crew d) Air crew

Last Answer : c) Ground crew

What type of pulley uses more effort than the load to lift the load from the ground?

Description : What type of pulley uses more effort than the load to lift the load from the ground?

Last Answer : Need answer

Two bodies of mass 6 kg and 9 kg are connected with a light inextensile string passing over a smooth pulley with one of the bodies on a smooth inclined plane (θ = 30°) and the other hanging freely from the other end. Show that the time taken by 9 kg to pull 6 kg up the entire length is half the time taken by 6 kg to pull 9 kg over the same plane.

Description : Two bodies of mass 6 kg and 9 kg are connected with a light inextensile string passing over a smooth pulley with one of the bodies on a smooth inclined plane (θ = 30°) and the other hanging freely from the ... kg up the entire length is half the time taken by 6 kg to pull 9 kg over the same plane.

Last Answer : Given: Mass of body A (mA) = 6 kg Mass of body B (mB) = 9 kg Angle of inclination of the plane (θ) = 30° Let's assume that the acceleration of body A (aA) and body B (aB) are in opposite ... we know that the time taken (t) is given by the formula: t = √(2d/a), where d is the distance travelled

Pulley bow

Description : Hello, I got a Predator II Recurve Bow this Christmas and I don't know much about it, maybe I could get an answer on this website. I have several years of experience with reflex bows, so I ... I don't really understand this operation. Maybe there will be someone who will be able to help. Thanks

Last Answer : Need Answer

System shown in figure is released from rest . Pulley and spring is mass less and friction is absent everywhere. The speed of `5 kg` block when `2 kg`

Description : System shown in figure is released from rest . Pulley and spring is mass less and friction is absent everywhere. The speed of `5 kg` block when `2 kg`

Last Answer : System shown in figure is released from rest . Pulley and spring is mass less and friction is absent everywhere. The ... . 2 m/s D. `4sqrt(2) ` m/s

The string in fig. is passing over small smooth pulley rigidly attached to trolley A. If the speed of trolley is constant and qual to `v_(A)` towards

Description : The string in fig. is passing over small smooth pulley rigidly attached to trolley A. If the speed of trolley is constant and qual to `v_(A)` towards

Last Answer : The string in fig. is passing over small smooth pulley rigidly attached to trolley A. If the speed of trolley is constant ... =0` D. `V_(B)=4/5 V_(A)`

Is a scissors a lever or a pulley?

Description : Is a scissors a lever or a pulley?

Last Answer : Need answer

What is difference between the roller and pulley?

Description : What is difference between the roller and pulley?

Last Answer : Need answer

Is a single fixed pulley superior than a single movable pulley?

Description : Is a single fixed pulley superior than a single movable pulley?

Last Answer : Need answer

If pulley a turn clockwise at 15 rpm how fast and what direction will pulley b turn?

Description : If pulley a turn clockwise at 15 rpm how fast and what direction will pulley b turn?

Last Answer : A simple enough question, but complicated by so many possible variations. For instance, place two cog wheels together so that their teeth mesh. Turn cog A clockwise and cog B will turn anticlockwise ( ... of travel (RPM) would depends on the diametres of the pulley wheels - variations once more!

How can inclined plane and amp a pulley r used to change the amount of force needed to move an object?

Description : How can inclined plane and amp a pulley r used to change the amount of force needed to move an object?

Last Answer : Feel Free to Answer

What compound machine consists of both fixed in movable pulley?

Description : What compound machine consists of both fixed in movable pulley?

Last Answer : Feel Free to Answer

How do i replace crank pulley on 2000 Toyota Tacoma 2.7?

Description : How do i replace crank pulley on 2000 Toyota Tacoma 2.7?

Last Answer : Feel Free to Answer

What is a fixed and movable pulley used together?

Description : What is a fixed and movable pulley used together?

Last Answer : Feel Free to Answer

In a fixed pulley the effort force is equal to the?

Description : In a fixed pulley the effort force is equal to the?

Last Answer : Mechanical advantage of a fixed pulley

BEARING ID 42MM, OD 75.8MM AND THICKNESS 39MM. WHICH BEARING I CAN USE THIS BEARING WILL BE USING FOR FAN PULLEY?

Description : BEARING ID 42MM, OD 75.8MM AND THICKNESS 39MM. WHICH BEARING I CAN USE THIS BEARING WILL BE USING FOR FAN PULLEY?

Last Answer : Here is a website that lets you put in the specifications of the bearign that you need and it will show you which to buy. from what I can tell, you will need one exactly like what you took out with the exact measurments. http://www.thefind.com/sports/browse-42mm-metric-ball-bearings

how do you remove pulley from motor on a roper dryer?

Description : how do you remove pulley from motor on a roper dryer?

Last Answer : You have to unscrew the hex nut that is attaching the pulley to the motor. It can be relatively difficult so get a torque wrench.

A pulley has a mechanical advantage of 1. What does this tell you about the size and direction of the input and output forces?

Description : A pulley has a mechanical advantage of 1. What does this tell you about the size and direction of the input and output forces?

Last Answer : its like a input or output

Ignition timing of a multi-cylinder SI engine can be adjusted by A. rotating the cam shaft B. adjusting the generator pulley C. rotating the distributor D. adjusting the pump pulley

Description : Ignition timing of a multi-cylinder SI engine can be adjusted by A. rotating the cam shaft B. adjusting the generator pulley C. rotating the distributor D. adjusting the pump pulley

Last Answer : ANSWER : C

A wheel-barrow is an example of – (1) class III lever (2) pulley system (3) class I lever (4) class II lever

Description : A wheel-barrow is an example of – (1) class III lever (2) pulley system (3) class I lever (4) class II lever

Last Answer : (4) class II lever Explanation: In a Type 2 Lever, the load is between the pivot (fulcrum) and the effort. Examples of common tools that use a type 2 lever include: stapler, bottle opener, wheel barrow, nail clippers and nut cracker.

A single fixed pulley is used to draw water from a well because – (1) efficiency is 100% (2) velocity ratio is low (3) mechanical advantage is high (4) force is applied in a convenient direction

Description : A single fixed pulley is used to draw water from a well because – (1) efficiency is 100% (2) velocity ratio is low (3) mechanical advantage is high (4) force is applied in a convenient direction

Last Answer : (4) force is applied in a convenient direction Explanation: A single fixed pulley is used to lift a load upwards by applying efforts downward's. The load and effort move equal distance but in opposite ... apply effort in downward direction. They are used on flag-poles and to draw water from a well.

In the method of tube boring of soil investigation, the following is essential: (A) A tube of about 2 metres length and 20 cm diameter with a cutting edge (B) A flap valve at the bottom of tube is provided to extract the soil sample (C) The tube is raised and lowered by 4 thick rope moving over a pulley suspended on a tripod stand (D) All the above

Description : In the method of tube boring of soil investigation, the following is essential: (A) A tube of about 2 metres length and 20 cm diameter with a cutting edge (B) A flap valve at the bottom of tube is ... and lowered by 4 thick rope moving over a pulley suspended on a tripod stand (D) All the above

Last Answer : Answer: Option D

The gap between the two halves of axle pulley should be a. 0.5 – 1.0 mm c. 3.0 – 4.0 mm b. 2.0 – 3.0 mm d. 5.0 – 5.5 mm

Description : The gap between the two halves of axle pulley should be  a. 0.5 – 1.0 mm c. 3.0 – 4.0 mm b. 2.0 – 3.0 mm d. 5.0 – 5.5 mm

Last Answer : c. 3.0 – 4.0 mm

belt of silk runs over two metal pulleys, one of which is surrounded by a hollow metal sphere. Two electrodes, in the form of comb-shaped rows of sharp metal points, are positioned respectively near to the bottom of the lower pulley and inside the sphere, over the upper pulley. The top electrode is connected to the sphere and the bottom one to the ground. A high DC potential is applied to the upper pulley. A simple version of which equipment is being described here?

Description : belt of silk runs over two metal pulleys, one of which is surrounded by a hollow metal sphere. Two electrodes, in the form of comb-shaped rows of sharp metal points, are positioned ... potential is applied to the upper pulley. A simple version of which equipment is being described here?

Last Answer : Van de Graaff generator.

V -belt are most suitable for a. less space requirements b. use with adjustable pulley foe speed change c. both (a) and (b) d. none of the above

Description : V -belt are most suitable for a. less space requirements b. use with adjustable pulley foe speed change c. both (a) and (b) d. none of the above

Last Answer : c. both (a) and (b)

Belt Tension can be adjusted by a. idler pulley b. slide rails c. tilting plate drive d. all the above

Description : Belt Tension can be adjusted by a. idler pulley b. slide rails c. tilting plate drive d. all the above

Last Answer : d. all the above

Desired tension in an open belt drive system can be maintained (without changing center to center distance between two pulley)by using A)ldler pulley. B)slide rail C) Tilting angle. D)none of the above

Description : Desired tension in an open belt drive system can be maintained (without changing center to center distance between two pulley)by using A)ldler pulley. B)slide rail C) Tilting angle. D)none of the above

Last Answer : A)ldler pulley

A 5 kilogram mass is lifted at constant velocity from a shop floor by a rope that passes through a pulley attached to the shop's ceiling. Neglecting the mass of the rope and friction in the pulley, what is the approximate tension in the rope? w) 100 newtons x) 50 newtons y) 25 newtons z) 5 newtons

Description : A 5 kilogram mass is lifted at constant velocity from a shop floor by a rope that passes through a pulley attached to the shop's ceiling. Neglecting the mass of the rope and friction in the pulley, what is the approximate tension in the rope? w) 100 newtons x) 50 newtons y) 25 newtons z) 5 newtons

Last Answer : ANSWER: X -- 50 NEWTONS

A wheel-barrow is an example of (1) class III lever (2) pulley system (3) class I lever (4) class II lever

Description : A wheel-barrow is an example of (1) class III lever (2) pulley system (3) class I lever (4) class II lever

Last Answer :  class II lever

A single fixed pulley is used to draw water from a well because (1) efficiency is 100% (2) velocity ratio is low (3) mechanical advantage is high (4) force is applied in a convenient direction

Description : A single fixed pulley is used to draw water from a well because (1) efficiency is 100% (2) velocity ratio is low (3) mechanical advantage is high (4) force is applied in a convenient direction

Last Answer : force is applied in a convenient direction

Which system uses computers at higher level strategies a.Variant CAPP b.Generative CAPP c.Hybrid CAPP d.All of the above

Description : Which system uses computers at higher level strategies a.Variant CAPP b.Generative CAPP c.Hybrid CAPP d.All of the above

Last Answer : b.Generative CAPP

Which system uses computers at lower-level strategies a.Variant CAPP b.Generative CAPP c.Hybrid CAPP d.All of the above

Description : Which system uses computers at lower-level strategies a.Variant CAPP b.Generative CAPP c.Hybrid CAPP d.All of the above

Last Answer : a.Variant CAPP

Which one of the following RP technologies uses solid sheet stock as the starting material? a.Droplet deposition manufacturing b.Fused-deposition modeling c.Laminated-Object Manufacturing d.Selective Laser Sintering

Description : Which one of the following RP technologies uses solid sheet stock as the starting material? a.Droplet deposition manufacturing b.Fused-deposition modeling c.Laminated-Object Manufacturing d.Selective Laser Sintering

Last Answer : c.Laminated-Object Manufacturing

Which of the following RP technologies uses molten material as the starting material? a.Three-Dimensional Printing b.Fused-Deposition Modeling c.Stereolithography d.Selective Laser Sintering

Description : Which of the following RP technologies uses molten material as the starting material? a.Three-Dimensional Printing b.Fused-Deposition Modeling c.Stereolithography d.Selective Laser Sintering

Last Answer : c.Stereolithography

Which of the following RP technologies uses powders as the starting material? a.Droplet Deposition Manufacturing b.Fused-Deposition Modeling c.Selective Laser Sintering d.Stereolithography

Description : Which of the following RP technologies uses powders as the starting material? a.Droplet Deposition Manufacturing b.Fused-Deposition Modeling c.Selective Laser Sintering d.Stereolithography

Last Answer : c.Selective Laser Sintering

Which of the following uses a number of two-dimensional profiles for generating athree-dimensional object? a.Tweaking b.Lofting c.Filleting d.none of the above

Description : Which of the following uses a number of two-dimensional profiles for generating athree-dimensional object? a.Tweaking b.Lofting c.Filleting d.none of the above

Last Answer : b.Lofting

Which reactor uses primary coolant as fluoride salts of lithium, beryllium, thorium and uranium ?

Description : Which reactor uses primary coolant as fluoride salts of lithium, beryllium, thorium and uranium ?

Last Answer : Molten salt breeder reactor.

Which reactor uses heavy water as moderator ?

Description : Which reactor uses heavy water as moderator ?

Last Answer : CANDU.

Which reactor uses natural uranium as fuel ?

Description : Which reactor uses natural uranium as fuel ?

Last Answer : Gas cooled reacator.

Which nuclear reactor uses water as a coolant, moderator and reflector ?

Description : Which nuclear reactor uses water as a coolant, moderator and reflector ?

Last Answer : Pressurised water reactor.

Explain Briefly The Uses Of Pipe Vice And Pipe Wrench ?

Description : Explain Briefly The Uses Of Pipe Vice And Pipe Wrench ?

Last Answer :  Pipe vice. It is used to hold the pipe firmly while cutting, threading etc.  Pipe wrench. It is used fir tightening and loosening the pipes.

What Is Gland Packing? Uses Of Gland Packing?

Description : What Is Gland Packing? Uses Of Gland Packing?

Last Answer : Gland packing is a Sealing member between two moving parts or stationary. It is used for arrest the leak through shaft various lines. 1. Teflon Gland packing 2. Graphite Gland packing 3. Carbon Gland packing 4. Virgin PTFE Gland packing 5. Graf oil Gland packing

108. is primarily a management technique that uses energy information as a basis to eliminate waste, reduce and control current level of energy use and improve the existing operating procedures. a) Energy monitoring and targeting b) CUSUM c) Specific energy consumption d) Production

Description : 108.is primarily a management technique that uses energy information as a basis to eliminate waste, reduce and control current level of energy use and improve the existing operating procedures. a) Energy monitoring and targeting b) CUSUM c) Specific energy consumption d) Production

Last Answer : Energy monitoring and targeting

Which of the following industrial process uses waste as a fuel? a) Cement kilns b) Lead manufacturing c) Acid manufacturing d) Sulphur manufacturing

Description : Which of the following industrial process uses waste as a fuel? a) Cement kilns b) Lead manufacturing c) Acid manufacturing d) Sulphur manufacturing

Last Answer : Cement kilns