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In spur gears

This question was previously asked in
UKPSC JE Mechanical 2013 Official Paper I
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  1. Both shafts are parallel.
  2. Teeth are straight
  3. Teeth are parallel to axis.
  4. All of these

Answer (Detailed Solution Below)

Option 4 : All of these
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Detailed Solution

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Explanation:

Spur Gear: 

  • The teeth are cut parallel to the axis of rotation.
  • The spur gears are used to transmit power between two parallel shafts.

spur

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More Spur Gears Questions

Q1.Consider a spur gear having 4 mm of circular pitch and a pitch circle diameter of 28 mm. What would be the total number of teeth the gear has?
Q2.In spur gears
Q3.A pair of Spur gears consists of a 20 teeth pinion meshing with a 120 teeth gear. The module is 4 mm, what will be the centre distance ?
Q4.A pair of spur gears with 20° full-depth involute teeth is used to transmit 3.5 kW of power. The pinion rotates at 700 rpm and has a pitch circle diameter of 100 mm. Assuming a single pair of teeth in contact, the total force acting on a gear tooth (in kN) is
Q5.A spur is designed to transmit the power 10 kW at a pitch line velocity of 10 m/s. Diameter of driving gear is 1 m. The tangential force between the driver and the follower and the transmitted torque, respectively, are:
Q6.A spur gear has the following specification: No of teeth = 22 Pitch circle diameter = 14 mm Find out the value of circular pitch.
Q7.If a spur gear has module of 4 mm, its circular pitch will be given by
Q8.Two mating spur gears have 25 teeth and 75 teeth. The pinion rotates at 1260 rpm. What is the rotational speed of gear?
Q9.The torque that can transmitted safely by the spur gear tooth at zero pitch line velocity is known as 
Q10.Given that the tooth geometry factor is 0.32 and the combined effect of dynamic load and allied factors intensifying the stress is 1.5; the minimum allowable stress (in MPa) for the gear material is

More Gear Questions

Q1.What is the clearance of gears?
Q2.What is Module of a gear?
Q3.A pinion having 20° full depth involute profile has 19 tooth and the meshing gear has 37 tooth. If the module is 5 mm, the center distance between the gear pair will be
Q4.A spur gear has module 2 mm and 30 number of teeth rotating at 200 rpm. What will be its circular pitch in mm?
Q5.Axial thrust is not there in which of the following gears? 
Q6.The difference between the space width and the tooth thickness along the pitch circle is _______.
Q7.The following data refers to two meshing gears [the large wheel is a gear and the small wheel is a pinion]. Velocity ratio = 1/3, Module = 4 mm, Centre distance = 200 mm.  Which of the following is correct? 
Q8.Which of the following is correct for a gear? [Where, Pc = Circular pitch, D = Diameter of pitch circles, T = Number of teeth on the gear, Pd = Diametral pitch, m = Module.] 
Q9.The difference between the tooth space and the tooth thickness as measured on the pitch circle is called
Q10.The helix angle for double helical gears may be made up to
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More Theory of Machines Questions

Q1.A quick return motion mechanism used in shaper machine
Q2.In a Hartnell governor, if a spring of greater stiffness is used, then the governor will be:
Q3.Isochronism in a governor is desirable when _____.
Q4.In the porter governor, the main constituent of controlling force is: 
Q5.A Pair is known as kinematic pair if the relative motion between links of pair is :
Q6.When two elements of a pair are in line contact, then pair is known as:
Q7.A flywheel is used :
Q8.What is the clearance of gears?
Q9.What is Module of a gear?
Q10.The flywheel of a steam engine has a radius of gyration 1 m and mass of 3000 kg. The starting torque of the engine is 3000 N - m. The kinetic energy of such a flywheel after 10 sec from rest position will be _______.
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