correl md2 quiz terms

Question 1

The driving force at the periphery of the driven pulley is called

Answer 1

Net belt tension

Question 2

The axes of rotation of two meshing gears may be intersecting, what type of gears are these?

Answer 2

bevel gears

Question 3

In general, bearings are known to be of what type?

Answer 3

radial bearing

Question 4

This type of brake is not often used in electric cranes.

Answer 4

disk brake

Question 5

Which of the following terms does not refer to the arc of contact between the belt and the pulley

Answer 5

angle of articulation

Question 6

It is a friction device whose application is to transmit power to machines requiring frequent stopping and starting.

Answer 6

friction clutch

Question 7

Centrifugal clutch is a

Answer 7

radial clutch

Question 8

It is a term describing the load-carrying capability of a system
beyond the expected or actual loads.

Answer 8

Safety Factor

Question 9

When a friction clutch has a new lining, the usual assumption in the calculation of the friction radius is ________.

Answer 9

uniform wear

Question 10

The groove angel for V-pulleys are usually

Answer 10

32°-38°

Question 11

In helical gears, it is the number of teeth that can be accommodated, for a given module, along a circumference or perimeter in the transverse plane.

Answer 11

Total number of teeth

Question 12

This bearing material has a component of approximately 4.5% copper.

Answer 12

babbit metal

Question 13

It is the width of the gear tooth measured parallel to the axis of rotation.

Answer 13

width of the face

Question 14

When a shaft rotates in anticlockwise direction at slow speed in a bearing, then it will

Answer 14

move towards left of the bearing making metal to metal contact

Question 15

Which of the following is considered a disadvantage for double helical gears?

Answer 15

manufacturing cost

Question 16

This phenomenon results in relative motion between the belt and the pulley surfaces caused by belt extension or contraction when the belt passes from slack side to tight side or vice-versa.

Answer 16

crepe of belt

Question 17

This type of sliding contact bearing material is usually utilized with steel journals.

Answer 17

cast iron

Question 18

In helical gearing, it is the circular pitch in the diametral plane.

Answer 18

transverse circular pitch

Question 19

Teflon is rapidly replacing nylon as wear surface material because

Answer 19

it has lower coefficient of friction

Question 20

This force on a helical gear acts in the tangential plane parallel to the axis of the shaft carrying the gear.

Answer 20

axial force

Question 21

In spur gears, which is not a radial distance?

Answer 21

backlash

Question 22

It is a bearing material used in aircraft where fatigue strength is the most important consideration

Answer 22

silver

Question 23

In Journal Bearings, what is the ratio of eccentricity to radial clearance

Answer 23

Attitude ratio

Question 24

In helical gears, it is the number of teeth that can be accommodated, for a given module, along the circumference of the pitch circle in the plane of rotation.

Answer 24

Actual number of teeth

Question 25

For Spur gears, the radial distance from the _____ to the clearance circle is called working depth

Answer 25

Addendum Circle

Question 26

What type of bearing is the slipper bearing?

Answer 26

radial bearing

Question 27

It is the ability of the bearing material to accommodate shaft deflections and bearing inaccuracies by plastic deformation without excessive wear and heating.

Answer 27

Comformability

Question 28

This type of brake is often used in electric cranes

Answer 28

double block brake

Question 29

It is the circular pitch in the plane of rotation of a helical gear

Answer 29

circular pitch

Question 30

In helical gears, the ratio of the transverse circular pitch to the tangent of the helix angle is

Answer 30

transverse module

Question 31

The maximum face width for helical gears ranges from

Answer 31

20m-30m

Question 32

It is the ability of bearing material to accommodate small particles of dust, grit etc., without scoring the material of the journal.

Answer 32

embeddability

Question 33

It is a measure of the lubricating qualities under boundary conditions where base metal to metal is prevented only by absorbed film

Answer 33

oiliness

Question 34

In this type of bearings, sliding takes place along the surfaces of contact between the moving element and the fixed element.

Answer 34

slipper or guide bearings

Question 35

It is the property of a bearing material that permits the rapid or slow removal of the heat generated by friction.

Answer 35

thermal conductivity

Question 36

Which one of the following is a positive drive?

Answer 36

Chain drive