KPSC ITI JTO Engineering Drawing Question Paper 2018 with Answer Key

26) The coupling which permits rotary, transverse and longitudinal misalignment is called _____ coupling.

Answer is:

pin-type flexible

27) A gear wheel of 20 teeth drives another gear wheel having 36 teeth running at 200 rpm. The velocity ratio of the gear train is equal to

Answer is:

1:1.8

28) Two bevel gears of equal size and equal number of teeth, often used to transmit power at 90 degree, are called

Answer is:

Mitre gears

Explanation:

When two non-parallel or intersecting, but coplaner shafts are connected by gears, then these gears are called bevel gears and the arrangement is known as bevel gearing.

When equal bevel gears (having equal teeth) connect two shafts whose axes are mutually perpendicular, then the bevel gears are known as mitre gears.

Two bevel gears of equal size and equal number of teeth, often used to transmit power at 90 degree, are called

29) The type of pulleys used to run number of machines without stopping the main driving shaft intermittently is called

Answer is:

fast and loose pulley

The type of pulleys used to run number of machines without stopping the main driving shaft intermittently is called

30) The rotor of an induction motor cannot run with synchronous speed because

Answer is:

26) The coupling which permits rotary, transverse and longitudinal misalignment is called _____ coupling.

pin-type flexible

27) A gear wheel of 20 teeth drives another gear wheel having 36 teeth running at 200 rpm. The velocity ratio of the gear train is equal to

1:1.8

28) Two bevel gears of equal size and equal number of teeth, often used to transmit power at 90 degree, are called

Mitre gears

29) The type of pulleys used to run number of machines without stopping the main driving shaft intermittently is called

fast and loose pulley

30) The rotor of an induction motor cannot run with synchronous speed because

rotor torque would then become zero