6.9 GEARS

Question 1

Power transmission in shafts with axes that stand perpendicular to
each other is achieved by using:

Answer 1

Bevel gears

Question 2

Which of the following statements regarding wheels with slanting
teeth is true?

Answer 2

They create a force that acts in an axial direction.

Question 3

Which of the following statements regarding driving-key-type gears is
false?

Answer 3

Such gears need much space during operation.

Question 4

Incorrect assembly of chains should be rendered impossible by theuse of reversible chains in conjunction with the appropriate types of wheels, guardsand connectors. True or False?

Answer 4

False

Question 5

Which of the following statements regarding chain drives is true?

Answer 5

Both roller chains and gear chains have low frictional loss and aresmooth-running

Question 6

Extension couplings allow a small longitudinal movement of one shaftin relation to the other due to heating during operations. True or False?

Answer 6

True

Question 7

By using a spur wheel and a spur rack, rotational movements aretransformed into straight-line movements and vice versa. True or False?

Answer 7

True

Question 8

Push rods can transmit:

Answer 8

Both pulling and pushing forces

Question 9

Which of the following statements regarding couplings is false?

Answer 9

Safety couplings are used if the shafts are not in alignment or if theposition of the shafts changes during operation

Question 10

Change in direction of chains is achieved by using:

Answer 10

Chain wheels

Question 11

The cone pulley drive is suitable for transmission of:

Answer 11

Smaller forces at high rotational speeds

Question 12

Gear drives transfer rotational movement at low speeds without slip.True or False?

Answer 12

True