GEAR WEEK 8

Which is listed below are not a gear type?

• SPUR

• HERRINGBONE

• WORM

• GALAXY

• PLANETARY

What is the advantage of Helical Gear over Spur Gear?

• QUIETER

• CHEAPER

• HIGHER SPEED

• HIGHER EFFICEINCY

• EASIER TO FIND

In what situation bevel gear are used?

• TO BE USED IN HIGH SPEED APPLICATIONS

• TO CONVERT ROTATION TO LINEAR MOTION

• TO TRANSFER POWER AND MOTION BETWEEN UNPARALLEL SHAFTS

• TO BE USED TO TRANSFER MOTION BETWEEN PARALLEL SHAFTS

What does BACKLASH means?

• THE LINE OF ACTION OF THE FORCE ONTO THE GEAR TEETH

• THE AMOUNT OF SPACE BETWEEN THE MESHING TEETH OF THE GEAR

• AVERAGE NUMBER OF TEETH THAT ARE IN CONTACT

• CLEARANCE BETWEEN MATING TEETH MEASURED AT PITCH CIRCLE

Which IS NOT types of Gear Train?

• COMPOUND GEAR

• REVERTED GEAR

• HYPOID GEAR

• PLANETARY GEAR

• MESH GEAR

What is the CHARACTERISTICS of Compound Gear

• ONE OR MORE SHAFTS CARRY MORE THAN ONE GEAR

• THERE IS A LIMIT OF NUMBER OF TEETH

• SHAFTS ARE FIXED RELATIVELY TO THE FRAME

• MINIMUM NUMBER OF TEETH ON THE GEAR IS NOT LIMITED BY INTERFERENCE

• USED IN APPLICATION FOR SMALL SPEED RATIOS ARE REQUIRED

What is the MINIMUM value of Contact Ratio?

• 1.1

• 1.2

• 1.3

• 1.4

• NO MINIMUM VALUE

What is the purpose of UNDERCUTTING?

• TO REDUCE SOUND

• TO AVOID INTERFERENCE BETWEEN MATING TEETH

• TO OPTIMIZED THE ROTATIONAL SPEED OF MATING GEARS

• TO REDUCE MATERIALS WASTAGE

• TO MATE GEARS OF DIFFERENT MODULES

The Advantage of Compound Gear is?

• CHEAP

• HIGHER SPEED

• QUIETER

• COMPACTNESS

What is the main APPLICATION of Gear Train?

• TO TRANSPER MOTION AND POWER BETWEEN DIFFERENT GEARS WITH DIFFERENT MODULE

• TO TRANSFER POWER BETWEEN UNPARALLEL SHAFTS

• TO CHANGE THE DIRECTION OF THE ROTATION BETWEEN PARALLEL SHAFTS

• TO REDUCE THE SPEED