Lewis formula is used in the design of a) gears b) clutch c) chain drive d) belt drives

Lewis formula is used in the design of  
 a) gears b) clutch c) chain drive d) belt drives
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Answer :

a) gears
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Related questions

When frequency of occurrence of overload is less and magnitude of overload is also less than safety device used is a) Safety jump clutch b) Shear device c) Frictional device d) V-belt drive

Description : When frequency of occurrence of overload is less and magnitude of overload is also less than safety device used is a) Safety jump clutch b) Shear device c) Frictional device d) V-belt drive

Last Answer : a) Safety jump clutch

When frequency of occurrence of overload is less but the mangnitude of overload is large than safety device used is: a) Safety jump clutch b) Shear device c) Frictional device d) V-belt drive

Description : When frequency of occurrence of overload is less but the mangnitude of overload is large than safety device used is: a) Safety jump clutch b) Shear device c) Frictional device d) V-belt drive

Last Answer : b) Shear device

What is the value for centrifugal torque for maximum power transmission in belt drives a) ½ maximum torque b) 2/3 maximum torque c) ¾ maximum torque d) None of the above

Description : What is the value for centrifugal torque for maximum power transmission in belt drives a) ½ maximum torque b) 2/3 maximum torque c) ¾ maximum torque d) None of the above

Last Answer : d) None of the above

Chain drives are stable for a) Constant speed ratio between parallel shafts b) Distance between centre to centre is moderate c) Dirty and dusty environment d) All of the above

Description : Chain drives are stable for a) Constant speed ratio between parallel shafts b) Distance between centre to centre is moderate c) Dirty and dusty environment d) All of the above

Last Answer : d) All of the above

Length of open belt is given by formula a. L=[2C+( 2) (DI+D2)] + [ /4C] b. L=[2C+( 2) (DI+D2)] + [ /4C] c. L=[2C+( 2) (DI+D2)] + [ ] d. L=[2C+( 2) (DI D2)] + [ ]

Description : Length of open belt is given by formula a. L=[2C+( 2) (DI+D2)] + [ /4C] b. L=[2C+( 2) (DI+D2)] + [ /4C] c. L=[2C+( 2) (DI+D2)] + [ ] d. L=[2C+( 2) (DI D2)] + [ ]

Last Answer : a. L=[2C+( 2) (DI+D2)] + [ /4C]

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

When V-belt drive is used a safety device, its performance is affected by a) Variation in belt tention b) Increase in coefficient of friction as belt slippage increase c) Both (a) and (b) d) None of the above

Description : When V-belt drive is used a safety device, its performance is affected by a) Variation in belt tention b) Increase in coefficient of friction as belt slippage increase c) Both (a) and (b) d) None of the above

Last Answer : c) Both (a) and (b)

V-belt drive transmission system is used when it is designed to achieve a) High speed ratio b) Space requirements are limited c) Both (a) and (b) d) None of the above

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ears commonly used on fuel injection pumps are a. Spur gears b. helical gears c. rack and pinion d. spiral gears

Description : ears commonly used on fuel injection pumps are a. Spur gears b. helical gears c. rack and pinion d. spiral gears

Last Answer : c. rack and pinion

Worm gears are used for transmitting power between two shafts a)at right angle to each other and cannot intersect each other b) at right angle to each other and can intersect each other c)at angle to each other d)shafts on different plane

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Last Answer : a)at right angle to each other and cannot intersect each other

Gears are used for: a)changing the speed rotation b)changing direction of rotation c)changing direction of shafting d)all of the above

Description : Gears are used for: a)changing the speed rotation b)changing direction of rotation c)changing direction of shafting d)all of the above

Last Answer : d)all of the above

In an epicycle gear reduction unit, the ratio of the number of teeth of the internal gears to the sun gear is: a) 3:1 b) 4:1 c) 2.5:1 d) 4.5:1

Description : In an epicycle gear reduction unit, the ratio of the number of teeth of the internal gears to the sun gear is: a) 3:1 b) 4:1 c) 2.5:1 d) 4.5:1

Last Answer : b) 4:1

Gears are generally used in the transmission box are ∙ spur gear only ∙ helical gear only ∙ helical and spur gear gears ∙ bevel gears

Description : Gears are generally used in the transmission box are ∙ spur gear only ∙ helical gear only ∙ helical and spur gear gears ∙ bevel gears

Last Answer : ∙ helical gear only

The commonly used power transmission system in ferti seed drills are: a) China-sprocket and gears b) Gears and belt pulleys c) Belt pulleys and cams d) Belt pulleys and chain sprocket

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Last Answer : d) Belt pulleys and chain sprocket

Tension on the slack side in chain drive is A)more than on tight side. B)less than on tight side. C)zero. D)equal to tight

Description : Tension on the slack side in chain drive is A)more than on tight side. B)less than on tight side. C)zero. D)equal to tight

Last Answer : C)zero

Tension on slack side in case of chain drive a) Lesser than on tight side b) Greater than on tight side c) Zero d) Equal to that on tight side

Description : Tension on slack side in case of chain drive a) Lesser than on tight side b) Greater than on tight side c) Zero d) Equal to that on tight side

Last Answer : c) Zero

is used to transmit power from the engine to the main clutch. A. V-Belt C. open belt drive B. cross belt D. flat belt

Description : is used to transmit power from the engine to the main clutch. A. V-Belt C. open belt drive B. cross belt D. flat belt

Last Answer : V-Belt

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)

Function of idler pully are a. to increase the angle of contact of belt on pully b. maintain belt tension as belt stretches c. canter to centre distance remain same d. all the above

Description : Function of idler pully are a. to increase the angle of contact of belt on pully b. maintain belt tension as belt stretches c. canter to centre distance remain same d. all the above

Last Answer : d. all the above

Slip of belt is responsible for A. Reduction is speed B. Reduction in power C. Reduction in belt life D. All of the above

Description : Slip of belt is responsible for A. Reduction is speed B. Reduction in power C. Reduction in belt life D. All of the above

Last Answer : D. All of the above

Smaller tension ratio result in.... (a) Unnecessary high tension in belt (b) Reduction in belt life (c) Both (c) & (b) (d) Excessive belt slippage

Description : Smaller tension ratio result in.... (a) Unnecessary high tension in belt (b) Reduction in belt life (c) Both (c) & (b) (d) Excessive belt slippage

Last Answer : (c) Both (c) & (b)

310- Larger tension ratio result in... (a) Unnecessary high tension in belt (b) Reduction in belt life (c) Excessive belt slippage (d) Increase belt life

Description : 310- Larger tension ratio result in... (a) Unnecessary high tension in belt (b) Reduction in belt life (c) Excessive belt slippage (d) Increase belt life

Last Answer : (c) Excessive belt slippage

.308- Life expectancy of V-belt in farm machinery is about.... (a) 200-500 hrs (b) 1000-2000 hrs (c) 2000-5000hrs (d) 5000-10000hrs

Description : .308- Life expectancy of V-belt in farm machinery is about.... (a) 200-500 hrs (b) 1000-2000 hrs (c) 2000-5000hrs (d) 5000-10000hrs

Last Answer : (b) 1000-2000 hrs

The two types of cylinders used on power wheat threshers are 1. Serrated disc and rasp bar 2.gears and belt pulleys 3. belt pulleys and chains 4 none of the above

Description : The two types of cylinders used on power wheat threshers are 1. Serrated disc and rasp bar 2.gears and belt pulleys 3. belt pulleys and chains 4 none of the above

Last Answer : ans 2

Air output of a duster is given by formula a) Q= 60×A×V b)Q= 60×A×(2GH/Y) c) Q= 240×A×h d) all of the above

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Last Answer : d) all of the above

Formula for adding weight (ballast) on tractor tyres working in loose wet soil for good traction a)(km/hr × kg/PTO kw)=540 b)( km/hr × kg/PTO kw)=670 c)( km/hr × kg/PTO HP)=540 d)( km/hr × kg/PTO HP)=670

Description : Formula for adding weight (ballast) on tractor tyres working in loose wet soil for good traction a)(km/hr × kg/PTO kw)=540 b)( km/hr × kg/PTO kw)=670 c)( km/hr × kg/PTO HP)=540 d)( km/hr × kg/PTO HP)=670

Last Answer : a)(km/hr × kg/PTO kw)=540

Formula for established plants to the speed sown based on the dug seed is given by A. CI= [(E×10000) /(D×W) ]×1000 B. CI=[E/(N+E) ]×100 C.Both (A) and (B) D. None of (A) and (B)

Description : Formula for established plants to the speed sown based on the dug seed is given by A. CI= [(E×10000) /(D×W) ]×1000 B. CI=[E/(N+E) ]×100 C.Both (A) and (B) D. None of (A) and (B)

Last Answer : B. CI=[E/(N+E) ]×100

Formula for established plant to the seed sown based on the delivery rate (kg/ha) is A. CI=[(E×10000) /(D×W) ]×100 B. CI=[E/(N+E) ]×100 C. Both (A) and (B) D. None of (A) and (B)

Description : Formula for established plant to the seed sown based on the delivery rate (kg/ha) is A. CI=[(E×10000) /(D×W) ]×100 B. CI=[E/(N+E) ]×100 C. Both (A) and (B) D. None of (A) and (B)

Last Answer : A. CI=[(E×10000) /(D×W) ]×100

The formula for tension difference or effective pull, required to transmit the load at.... (a) (Tt-Ts)=1000(kw/V) (b) Tt/Ts=c^ke (c) (Tt-Ts)= 1000(Hp/V) (d) None of the above

Description : The formula for tension difference or effective pull, required to transmit the load at.... (a) (Tt-Ts)=1000(kw/V) (b) Tt/Ts=c^ke (c) (Tt-Ts)= 1000(Hp/V) (d) None of the above

Last Answer : (a) (Tt-Ts)=1000(kw/V)

Seed drills differ from the planters in respect of a) metering mechanism b) ground wheel design c) transmission system between ground wheel and roller wheel d) none of the above

Description : Seed drills differ from the planters in respect of a) metering mechanism b) ground wheel design c) transmission system between ground wheel and roller wheel d) none of the above

Last Answer : a) metering mechanism

Hook link chains are a)suitable for external drive exposed atmosphere b)made of meabble iron c)used where power requirement is low and speed is low d)All of the above

Description : Hook link chains are a)suitable for external drive exposed atmosphere b)made of meabble iron c)used where power requirement is low and speed is low d)All of the above

Last Answer : d)All of the above

In comparison to jump clutchs, advantages of the friction safety clutches is/are a) More consistent break away torque b) No damageing peak during slippage c) Protecting a drive from high freuency peak torque (2-3 time normal values) d) All of the above

Description : In comparison to jump clutchs, advantages of the friction safety clutches is/are a) More consistent break away torque b) No damageing peak during slippage c) Protecting a drive from high freuency peak torque (2-3 time normal values) d) All of the above

Last Answer : d) All of the above

Differential lock offers advantage of A. Better drawbar pull when drive wheel are under different conditions B. Easier to plant in straight rows C. Reduces stearing effort and side draft when operating with certain implements D. All of the above

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Last Answer : D. All of the above

rank speed on the mower with conventional pit man drive is a)850-1000 rpm b)1000-1200rpm c)800-1150rpm d)1200-1600 rpm

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Last Answer : a)850-1000 rpm

The BAS mild hybrid system used………. To start the internal combustion engine. a. Belt drive b. Chain drive c. Direct drive d. None of the above.

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Last Answer : a. Belt drive

Compare Belt Drive and Chain Drive

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Description : What Is The Formula To Find Out The Length Of A Belt In A Closed Belt Drive?

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What Is The Formula To Find Out The Length Of A Belt In An Open Belt Drive?

Description : What Is The Formula To Find Out The Length Of A Belt In An Open Belt Drive?

Last Answer : L = 2C + 1.57 (D + d) + (D-d)2 /4C

What Are The Rules For Belt Drives?

Description : What Are The Rules For Belt Drives?

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What purpose does FeCl3 serve in the electrophilic aromatic substitution reaction between chlorine and benzene? (a) It serves as a radical initiator to produce the chlorine radical needed to propagate the chain reaction. (b) It functions by destabilizing the carbocationic intermediate and thereby increases the rate of H+ loss. (c) It serves as a Lewis base catalyst by reacting with Cl2 to generate chloride ions. (d) It serves as a Lewis acid catalyst by reacting with the Cl2 and thereby activates it toward attack by benzene’s π electrons.

Description : What purpose does FeCl3 serve in the electrophilic aromatic substitution reaction between chlorine and benzene? (a) It serves as a radical initiator to produce the chlorine radical needed to propagate the ... by reacting with the Cl2 and thereby activates it toward attack by benzene's π electrons.

Last Answer : It serves as a Lewis acid catalyst by reacting with the Cl2 and thereby activates it toward attack by benzene’s π electrons.

verticalsuctioninmouldboardploughis______whereashorizontalsuctionis______

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Last Answer : .0.3to0.5cm,0.5cm

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Last Answer : .decreases,increases

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Description : A paddy transplanter uses either root wash type seedlings or __________ seedlings.

Last Answer : soil bearing

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Description : An indigenous plough cuts a _________furrow cross sect

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Description : The unit of filter medium resistance is________

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Description : The average working speed of a hand operated chaff fitted with two knives is _________ rev/min.

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