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MULTIPLE CHOICE QUESTIONS (MCQ) WITH ANSWERS ON POWER TRANSMISSION-GEARS

 

 

https://mesubjects.net/wp-admin/post.php?post=14409&action=edit     MCQ Power Trans Chains

https://mesubjects.net/wp-admin/post.php?post=14392&action=edit    MCQ Power Trans Belts B

https://www.mesubjects.net/wp-admin/post.php?post=5328&action=edit   Belt-chain-Gear Drives

 

MULTIPLE CHOICE QUESTIONS

(MCQ) WITH ANSWERS ON

POWER TRANSMISSION GEARS

MCQ increase the level of understanding

and clarity. Gears transmit power and

motion between the driver and the driven

shafts. Normally motor or engine shaft is

driver and the machine shaft is driven.

MCQ help in the design of gear drive.

  1. The center distance for a gear drive is

    1. Small

    2. Large

    3. Medium

    4. None

ANS: (a)

  1. The center distance between two gears is

    1. Sum of radii

    2. Difference of radii

    3. Sum of radii/Difference of radii

    4. None

ANS: (a)

  1. The teeth on a spur gear are

    1. Parallel & straight to the axis

    2. Perpendicular & straight to the axis

    3. Inclined to the axis

    4. None

ANS: (a)

  1. Gears transmit

    1. Power

    2. Motion

    3. Both power & motion

    4. None

ANS: (c)

  1. A spur gear produces

    1. Axial thrust

    2. No axial thrust

    3. Can’t say

    4. None

ANS: (b)

  1. Spur gears in mesh rotate in the

    1. Same direction

    2. Counter direction

    3. Lateral direction

    4. None

ANS: (b)

  1. Speed ratio of a spur gear drive is

    1. Teeth on driver/ Teeth on driven

    2. Teeth on driven/ Teeth on driver

    3. Both (a) & (b)

    4. None

ANS: (b)

  1. Speed ratio of a spur gear drive is

    1. RPM of driver/RPM of driven

    2. RPM OF Driven/RPM of driverf

    3. Both (a) & (b)

    4. None

ANS: (a)

  1. Spur gears are

    1. Conical gears

    2. Cylindrical gears

    3. Combination of (a) & (b)

    4. None

ANS: (b)

  1. Spur gears are

    1. Easy to manufacture

    2. Difficult to manufacture

    3. Medium difficulty

    4. None

ANS: (a)

  1. Spur gears control

    1. Speed and torque

    2. Torque & power

    3. Speed, torque & power

    4. None

ANS: (c)

  1. Spur gear tooth profile is

    1. Cycloid

    2. Involutef

    3. Both Cycloid & Involute

    4. None

ANS: (b)

  1. The most common material of spur gears is

    1. Low carbon steel

    2. Medium carbon steel

    3. High carbon steel

    4. None

ANS: (d)

  1. The most common material of spur gears is

    1. Structural steel

    2. Stainless steel

    3. Super alloy

    4. None

ANS: (b)

  1. Module range for spur gears

    1. Firstly          0.5 to 9

    2. Secondly      0.5 to 6

    3. Thirdly          0.5 to 3

    4. None

ANS: (c)

  1. Bevel gears are

    1. Conical

    2. Cylindrical

    3. Both conical & cylindrical

    4. None

ANS: (a)

  1. Bevel gears transmit power between

    1. Parallel shafts

    2. Angular shafts

    3. Skew shafts

    4. None

ANS: (b)

      18. Bevel gears have

    1. Straight teeth

    2. Spiral teeth

    3. Both straight & spiral teeth

    4. None

ANS: (c)

  1. Gear ratio of a gear drive is

    1. Firstly          Teeth on driver / Teeth on driven

    2. Secondly      Teeth on driven / Teeth on driver

    3. Thirdly          Teeth on (Driver +Driven) / Teeth on driver

    4. None

ANS: (a)

  1. If gear ratio is 0.25, tell the mechanical advantage.

    1. 2

    2. 6

    3. 8

    4. None

ANS: (d)

  1. If the gear ratio is 0.25, tell the mechanical advantage

    1. 2

    2. 4

    3. 8

    4. None

ANS: (b)

  1. Cone distance for Bevel Gears is

    1. Firstly             Dp/2 +Dg/2

    2. Secondly       (Dp/2)2 +(Dg/2)2

    3. Thirdly           [(Dp/2)2 + (Dg/2)2]5

    4. None

ANS: (c)

  1. Pitch angle in a Bevel Gear is the angle between

    1. Two pitch lines

    2. One pitch line and the axis of the gear

    3. Can’t say

    4. None

ANS: (b)

  1. Sum of two pitch angles in a Bevel Gear is

    1. 150

    2. 300

    3. 450

    4. None

ANS: (d)

  1. Sum of two pitch angles in a Bevel Gear is

    1. 300

    2. 600

    3. 900

    4. None

ANS: (c)

  1. Mitre gears are those for which

    1. Pitch cones have the same included angle

    2. Width of teeth of two gears is same

    3. Both (a) & (b)

    4. None

ANS: (c)

  1. Module of a Bevel gear is

    1. Number of teeth/diameter

    2. Diameter/Number of teeth

    3. (a) + (b)

    4. None

ANS: (b)

  1. Beam strength of Bevel Gear is with ‘Y’ as Lewis factor and Ao as cone distance

    1. Firstly          m b σB (1—b/Ao)

    2. Secondly      m b σBY (1 + b/Ao)

    3. Thirdly          m b σB Y(1—b/Ao)

    4. None

ANS: (c)

  1. For 200 full depth involute gear, the Lewis factor ‘Y’ is

    1. 484—1.85/Z

    2. 484—2.85/Z

    3. 484—3.85/Z

    4. None

ANS: (b)

  1. Commonly used material of Bevel Gear for medium duty is

    1. Nylon

    2. Titanium

    3. Carbon steels

    4. None

ANS: (c)

  1. Commonly used material of Bevel Gear for heavy duty is

    1. Carbon steels

    2. Titanium

    3. Alloyed steels

    4. None

ANS: (c)

  1. Pitch circle diameter of pinion is

    1. m(Zp +Zg)

    2. m(Zp+ Zg)/2

    3. mZp

    4. None

ANS: (c)

  1. Pitch angle ‘γ ‘ is

    1. Sin-1(Zg/Zp)

    2. Cos-1 (Zg/Zp)

    3. Tan-1 (Zp/Zg)

    4. None

ANS: (c)

  1. Worm gear is one which connect

    1. Firstly   Non intersecting shafts with shaft angle of 900

    2. Secondly Non intersecting shafts with shaft angle of 600

    3. Thirdly Non intersecting shafts with shaft angle of 800

    4. None

ANS: (a)

  1. Worm gears transmit more power at large speed ratio and occupy

    1. More space

    2. Less space

    3. Medium space

    4. None

ANS: (b)

  1. Internal gears mesh with

    1. Internal gears

    2. External gears

    3. Both with internal & external gears

    4. None

ANS: (b)

  1. Screw gears transmit

    1. Large power

    2. Small power

    3. Large & small powers

    4. None

ANS: (b)

  1. A worm gear consists of a worm and a

    1. Gear

    2. Pinion

    3. Worm wheel

    4. None

ANS: (c)

  1. Speed ratio of Mitre gear is

    1. 5

    2. 3

    3. 1

    4. None

ANS: (c)

  1. Spiral Bevel gears have

    1. Straight tooth on cones

    2. Curved tooth on cones

    3. Combination of (a) & (b)

    4. None

ANS: (b)

  1. A gear rack is a

    1. Flat surface with teeth

    2. Cylindrical surface with teeth

    3. Conical surface with teeth

    4. None

ANS: (a)

  1. Helical gear vs spur gear, helical gears can transmit

    1. More load with more wear

    2. Less noise and less vibrations

    3. Both (a) & (b)

    4. None

ANS: (c)

  1. Between helical gears, there is a

    1. Point contact

    2. Line contact

    3. Curvilinear contact

    4. None

ANS: (b)

  1. Helical gears vs spur gears, helical gears connect

    1. Non-parallel shafts

    2. Parallel shafts

    3. Both (a) & (b)

    4. None

ANS: (c)