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GEAR WEEK 8

Total questions: 10

Worksheet time: 3mins

Name
Class
Date
1.

Which is listed below are not a gear type?

a)

SPUR

b)

HERRINGBONE

c)

WORM

d)

GALAXY

e)

PLANETARY

2.

What is the advantage of Helical Gear over Spur Gear?

a)

QUIETER

b)

CHEAPER

c)

HIGHER SPEED

d)

HIGHER EFFICEINCY

e)

EASIER TO FIND

3.

In what situation bevel gear are used?

a)

TO BE USED IN HIGH SPEED APPLICATIONS

b)

TO CONVERT ROTATION TO LINEAR MOTION

c)

TO TRANSFER POWER AND MOTION BETWEEN UNPARALLEL SHAFTS

d)

TO BE USED TO TRANSFER MOTION BETWEEN PARALLEL SHAFTS

4.

What does BACKLASH means?

a)

THE LINE OF ACTION OF THE FORCE ONTO THE GEAR TEETH

b)

THE AMOUNT OF SPACE BETWEEN THE MESHING TEETH OF THE GEAR

c)

AVERAGE NUMBER OF TEETH THAT ARE IN CONTACT

d)

CLEARANCE BETWEEN MATING TEETH MEASURED AT PITCH CIRCLE

5.

Which IS NOT types of Gear Train?

a)

COMPOUND GEAR

b)

REVERTED GEAR

c)

HYPOID GEAR

d)

PLANETARY GEAR

e)

MESH GEAR

6.

What is the CHARACTERISTICS of Compound Gear

a)

ONE OR MORE SHAFTS CARRY MORE THAN ONE GEAR

b)

THERE IS A LIMIT OF NUMBER OF TEETH

c)

SHAFTS ARE FIXED RELATIVELY TO THE FRAME

d)

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

e)

USED IN APPLICATION FOR SMALL SPEED RATIOS ARE REQUIRED

7.

What is the MINIMUM value of Contact Ratio?

a)

1.1

b)

1.2

c)

1.3

d)

1.4

e)

NO MINIMUM VALUE

8.

What is the purpose of UNDERCUTTING?

a)

TO REDUCE SOUND

b)

TO AVOID INTERFERENCE BETWEEN MATING TEETH

c)

TO OPTIMIZED THE ROTATIONAL SPEED OF MATING GEARS

d)

TO REDUCE MATERIALS WASTAGE

e)

TO MATE GEARS OF DIFFERENT MODULES

9.

The Advantage of Compound Gear is?

a)

CHEAP

b)

HIGHER SPEED

c)

QUIETER

d)

COMPACTNESS

10.

What is the main APPLICATION of Gear Train?

a)

TO TRANSPER MOTION AND POWER BETWEEN DIFFERENT GEARS WITH DIFFERENT MODULE

b)

TO TRANSFER POWER BETWEEN UNPARALLEL SHAFTS

c)

TO CHANGE THE DIRECTION OF THE ROTATION BETWEEN PARALLEL SHAFTS

d)

TO REDUCE THE SPEED