Free Printable Design of Transmission Systems

1.

What is the system of this belt?

a)

Open Belt System

b)

Close Belt System

c)

Advance Belt System

d)

Multiple Belt system

2.

In finding the length of the belt, what is the symbol of X represent?

a)

Radius of small pulley

b)

Radius of large pulley

c)

Distance between center of big pulley and center of small pulley

d)

Tension of slack side

3.

What is Tc represented?

a)

Tension at the tight side

b)

Tension at the slack side

c)

Centrifugal Tension

4.

..........is used to transmit power from one shaft to another shaft by means of pulleys which rotates at a certain speed.

what is the best answer to fill in the blank?

a)

Chain

b)

Belt

c)

Wire

d)

Cloth

5.

These are the types of belt that normally used in industry, except :

a)

Flat belt

b)

V Belt

c)

Circular Belt

d)

Multiple Belt

6.

The daily application of the belt :

a)

Treadmills

b)

Swing

c)

A car moves on road

d)

A falling bridge

7.

What is $\theta$ represent in finding the tension T2

a)

Total length of the belt

b)

Angle of contact

c)

Speed of the belt

d)

Tension at the slack side

8.

What is $\theta$ represent in finding the tension T2

a)

Total length of the belt

b)

Angle of contact

c)

Speed of the belt

d)

Tension at the slack side

9.

Which gear represents the DRIVE gear?

a)

Small Gear

b)

Large Gear

10.

the drive system shown in the figure is

a)

belt drive

b)

chain drive

c)

gear drive

d)

sprocket drive

11.

In open belt,

a)

One of the Pulley runs slower than other pulley

b)

Both pulleys rotate in the same direction

c)

Both pulleys rotate in opposite direction

12.

The intermediate mechanisms which is used to transmit power from one place to another place

a)

Pulley

b)

Machine

c)

Drive

d)

Lever

13.

The belt drive which is used with shafts arranged parallel and rotating in same direction

a)

Cross belt drive

b)

Open belt drive

14.

The belt drive which is used with shafts arranged parallel and rotating in opposite direction

a)

Cross belt drive

b)

Open belt drive

15.

This type of drive is used to change the speed of the driven shaft while the driving shaft runs at constant speed

a)

Cone pulley drive

b)

cross belt drive

c)

open belt drive

16.

Which of the following is not a material for belt drives

a)

Leather

b)

Balata

c)

Rubber

d)

Wood

17.

The included angle for v belt drive ranges from

a)

10 to 20 degree

b)

20 to 30 degree

c)

30 to 40 degree

18.

Which type of belt drives is used in compressors

a)

Flat belt drives

b)

V belt drives

19.

Velocity ratio of a belt drive is the ratio of speed of

a)

Driving pulley to driven pulley

b)

Driven pulley to driving pulley

20.

V belts are molded into

a)

Circular shape

b)

Triangular shape

c)

Trapezoidal shape

d)

None of the above

21.

V belts are suitable for

a)

Short drives

b)

Long drives

22.

For Positive Drive ______________ belts are used.

a)

Flat

b)

Round

c)

Vee

d)

Timing

23.

belts are acid proof and water proof and it is not effected by animal oils or alkalies.

a)

Balata

b)

Leather belts

c)

Cotton or fabric belts

d)

Rubber belt

24.

_____________ Belt are used where distance between the shaft is less than 02 meters

a)

Flat Belt

b)

Round Belt

c)

Vee Belt

d)

Timing Belt

25.

Round Belts are used where the distance between two shafts

a)

5 - 10 meters

b)

Less than 5 meters

c)

less than 2 Meters

d)

More than 5 meters

26.

flat Belts are used where the distance between two shafts

a)

less than 5 meters

b)

less than 2 meters

c)

5 – 10 meters

d)

none of the above

27.

In Belt Drive, _____________ may be used as a source of motion

a)

Belts

b)

Pulley

c)

shaft

28.

Which of these belts are well suited for timing mechanisms?

a)

Flat belt

b)

V-belt

c)

Synchronous belt

d)

Multiple V-Belt

e)

All types can be used

29.

What makes the pitch diameter of a sheave change?

a)

The belt used

b)

The distance between the shaft centers

c)

The speed of the driving shaft

d)

The belt tension

e)

The speed ratio between the driving and driven sheaves

30.

What is the drive misalignment called that results when the sheaves are at a different angle with the vertical plane?

a)

Parallel misalignment

b)

Horizontal angular misalignment

c)

Vertical angular misalignment

d)

Planar misalignment

e)

Vertical parallel misalignment

31.

Which tool is used to check for sheave parallel alignment?

a)

Straightedge

b)

Combination square

c)

Tape rule

d)

Feeler gauge

e)

No tool is needed, the eye is precise enough

32.

Which parameters are represented by the two scales on a belt tension tester?

a)

Deflection distance and belt span

b)

Deflection force and belt type

c)

Deflection force and belt width

d)

Deflection distance and small sheave diameter

e)

Deflection force and belt span

33.

Which type of belt is used with sprockets?

a)

F.H.P V-belt

b)

Timing belt

c)

Flat belts used on conveyors

d)

Multiple V-belts

e)

None

34.

Power is transferred between an electric motor and a pump with a belt drive. Calculate the required driven sheave pitch diameter and belt length if the motor and pump shafts are 20 inches apart and the pump shaft must rotate at 1800 r/minute. The driving sheave is installed directly on the motor shaft and has a pitch diameter of 5 inches. The plate on the motor indicates a nominal speed of 1000 r/minute.

a)

Driven sheave pitch diameter is 2.8 inches and belt length is 52.2 inches.

b)

Driven sheave pitch diameter is 9 inches and belt length is 52.2 inches.

c)

Driven sheave pitch diameter is 9 inches and belt length is 62 inches.

d)

Driven sheave pitch diameter is 2.8 inches and belt length is 62 inches.

e)

Impossible to tell from the given data

35.

What should be used to clean belts?

a)

A solvent

b)

Soap and water

c)

A glycerine/spirit mixture

d)

Sandpaper

e)

They should never be cleaned

36.

for the system shown in the figure ( B) represent :

a)

Driver Sheave

b)

V belt

c)

The pump

d)

The shaft

37.

the type of belt drive shown in the figure is :

a)

Flat belt

b)

V‐belt

c)

Timing belt

d)

Round belt

e)

Ribbed belt

38.

V-belt is used where a _____________ amount of power is to be transmitted

a)

low

b)

moderate

c)

great

39.

V-belt is used where the two pulleys are ________ to each other.

a)

very far

b)

very near

c)

quite far

40.

vThe included angle for the v belt is usually from __________ degree.

a)

0 to 10

b)

10 to 20

c)

20 to 30

d)

30 to 40

41.

Name the type of belt

a)

Classical V-Belt

b)

Flat Belt

c)

Poly-V Belt

42.

the drive system shown in the figure is

a)

belt drive

b)

chain drive

c)

sprocket drive

d)

Gear Drive

43.

Chain drive gears turn in the __________ direction.

a)

Opposite

b)

Same

c)

Oscilating

d)

Linear

44.

It is a way of transmitting mechanical power from one place to another which is common in motorcycles and bicycles.

a)

Gear

b)

Cam Follower

c)

Belt

d)

Chain Drive

45.

The three basic components of a chain drive are?

a)

Chain, roller, and pin

b)

Chain, driver sprocket, and driven sprocket

c)

Chain, master link, and roller

d)

Pins, rollers, and bushings

46.

Which gear represents the DRIVE gear?

a)

Small Gear

b)

Large Gear

47.

Chain drive is more efficient than belt drives.

a)

True

b)

False

48.

Stud link chains has more strength than the oval link chains

a)

Yes

b)

No

49.

Hoisting chain drives are operated at

a)

High speed

b)

Moderate speed

c)

Low speed

50.

The space between two link is known as

a)

Chain thickness

b)

Chain width

c)

Link width

51.

Chain drive is used for

a)

Short drive

b)

Long drive

c)

Both

d)

None of the above

52.

Belt drive is a flexible drive

a)

True

b)

False

53.

Which of the following drive has no Slip

a)

Belt Drive

b)

Rope Drive

c)

Chain Drive

d)

None of the Above

54.

The Power transmitted by a belt drive is

Where T1 and T2 are tensions in tight and slack side respectively

N- speed , V - Velocity

a)

(T1 - T2) x N

b)

(T1 + T2) x N

c)

(T1 - T2) / V

d)

(T1 - T2 ) x V

55.

The stress Produced on the belt is..................

a)

Tensile

b)

Compressive

c)

Shear

d)

Bending

56.

Spur Gears are used for connecting two..................

a)

Parallel and Coplanar Shafts

b)

Non Parallel and Coplanar Shafts

c)

Parallel and non coplanar Shafts

d)

Intersecting and Coplanar Shafts

57.

Due to slip of the belt, the velocity ratio of the belt drive

a)

Decreases

b)

Increases

c)

Does not change

d)

None of the above

58.

The cross section of V- belt is .............

a)

Rectangular

b)

Trapezoidal

c)

Triangle

d)

Circular

59.

Which of the following can be used for Power transmission in intersecting shafts.

a)

Spur Gear

b)

Helical Gear

c)

Bevel Gear

d)

None of the above

60.

Which of the following is not true about gear drives.

a)

Positive drive

b)

Constant velocity ratio

c)

Transmit large power

d)

Bulky construction

61.

The included angle for V-belt is

a)

30 degree to 40 degree

b)

40 degree to 50 degree

c)

20 degree to 30 degree

d)

50 degree to 60 degree

62.

In replacing the V-belts, a complete set of new belts is used instead of replacing a single damaged belt because

a)

(A) Belts are available in sets

b)

(B) Only one belt cannot be fitted with other used belts

c)

(C) The new belt will carry more than its share and result in short life

d)

(D) New and old belts will cause vibrations

63.

The power transmitted by the belt drive can be increased by

a)

(A) Increasing the initial tension in the belt

b)

(B) Dressing the belt to increase the coefficient of friction

c)

(C) Increasing wrap angle by using idler pulley

d)

(D) All of the above methods

64.

Which one of the following is a positive drive?

a)

(A) V-belt drive

b)

(B) Rope drive

c)

(C) Crossed flat belt drive

d)

(D) Chain drive

65.

The arms of the pulleys for flat belt drive have

a)

(A) Elliptical cross-section

b)

(B) Major axis in plane of rotation

c)

(C) Major axis twice the minor axis

d)

(D) All the three characteristics

66.

The centrifugal tension in belts

a)

(A) Decreases the power transmitted

b)

(B) Increases the power transmitted

c)

(C) Increase the wrap angle

d)

(D) Increases the belt tension without increasing power transmission

67.

When the speed of belt increases,

a)

(A) The coefficient of friction between the belt and pulley decreases

b)

(B) The coefficient of friction between the belt and pulley increases

c)

(C) The power transmitted will decrease

d)

(D) The power transmitted will increase

68.

In a horizontal flat belt drive, it is customary to use

a)

(A) Bottom side of belt as slack side

b)

(B) Top side of belt as slack side

c)

(C) Idler pulley

d)

(D) None of the above

69.

The stress induced in the belt is,

a)

(A) Tensile stress

b)

(B) Compressive stress

c)

(C) Direct shear stress

d)

(D) Torsional shear stress

70.

The dedendum circle diameter is equal to (where φ = Pressure angle)

a)

(A) Pitch circle diameter × cosφ

b)

(B) Addendum circle diameter × cosφ

c)

(C) Clearance circle diameter × cosφ

d)

(D) Pitch circle diameter × sinφ

71.

When the belt is transmitting maximum power,

a)

(A) The tension in tight side is twice the centrifugal tension

b)

(B) The tension in slack side is equal to the centrifugal tension

c)

(C) The tension in tight side is thrice the centrifugal tension

d)

(D) None of the above

72.

The contact ratio is the ratio of

a)

(A) Length of arc of recess to the circular pitch

b)

(B) Length of path of contact to the circular pitch

c)

(C) Length of arc of contact to the circular pitch

d)

(D) Length of arc of approach to the circular pitch

73.

Which of the following statements is wrong?

a)

(A) The V-belt may be operated in either direction with tight side of the belt at the top or bottom

b)

(B) The V-belt drive is used with large center distance

c)

(C) The power transmitted by V-belts is less than flat belts for the same coefficient of friction, arc of contact and allowable tension in the belts

d)

(D) The ratio of driving tensions in V-belt drive is more than flat belt drives

74.

The power transmitted by belt drive depends upon

a)

(A) Belt velocity

b)

(B) Initial belt tension

c)

(C) Arc of contact

d)

(D) All of the above

75.

The material suitable for the belts used in agricultural equipments is

a)

(a) cotton

b)

(b) rubber

c)

(c) leather

d)

(d) balata gum

76.

When the speed of belt increases,

a)

(a) the coefficient of friction between the belt and pulley increases

b)

(b) the coefficient of friction between the belt and pulley decreases

c)

(c) the power transmitted will decrease

d)

(d) the power transmitted will increase

77.

The creep in the belt is due to

a)

(A) Effect of temperature on belt

b)

(B) Material of belt

c)

(C) Unequal extensions in the belt due to tight and slack side tensions

d)

(D) Stresses beyond elastic limit of belt material

78.

In cross or regular lay ropes

a)

(A) Direction of twist of wires in strands is opposite to the direction of twist of strands

b)

(B) Direction of twist of wires and strands are same

c)

(C) Wires in two adjacent strands are twisted in opposite direction

d)

(D) Wires are not twisted

79.

In composite or reverse laid ropes

a)

(A) Direction of twist of wires in strands is opposite to the direction of twist of strands

b)

(B) Direction of twist of wires and strands are same

c)

(C) Wires in two adjacent strands are twisted in opposite direction

d)

(D) Wires are not twist

80.

An open belt drive is used when

a)

(A) Shafts are arranged at right angles and rotate in one definite direction

b)

(B) Shafts are arranged parallel and rotate in the opposite directions

c)

(C) Shafts are arranged parallel and rotate in the same directions

d)

(D) Driven shaft is to be started or stopped whenever desired without interfering with the driving shaft

81.

For same pulley diameters, center distance, belt speed and belt and pulley materials,

a)

(A) Open belt drive transmits more power than crossed belt drive

b)

(B) Crossed belt drive transmits more power than open belt drive

c)

(C) Open and crossed belt drives transmit same power

d)

(D) Power transmission does not depend upon open and crossed types of constructions

82.

The objective of ‘crowning’ of the flat pulleys of belt drive is to

a)

(A) Prevent the belt from running off the pulley

b)

(B) Increase the power transmission capacity

c)

(C) Increase the belt velocity

d)

(D) Prevent the belt joint from damaging the belt surface

83.

The wire ropes make contact at

a)

(A) Bottom of groove of the pulley

b)

(B) Sides and bottom of groove of the pulley

c)

(C) Anywhere in the groove of the pulley

d)

(D) Sides of groove of the pulley

84.

Fabric belts are used in industrial applications because

a)

(A) They are cheap

b)

(B) They can work at high temperature

c)

(C) They are unaffected by moisture and humidity

d)

(D) None of the above

85.

The suitable material for belt used in flour mill is

a)

(A) Leather

b)

(B) Rubber

c)

(C) Canvas or cotton duck

d)

(D) Balata gum

86.

Belt slip may occur due to

a)

(A) Heavy load

b)

(B) Loose belt

c)

(C) Driving pulley too small

d)

(D) All of the above

87.

The coefficient of friction in belt drive depends upon

a)

(A) Material of belt

b)

(B) Material of pulley

c)

(C) Materials of belt and pulley

d)

(D) Belt velocity

88.

The ratio of driving tensions for flat belts, neglecting centrifugal tension, is (where T₁, and T₂ = Tensions on the tight and slack sides of belt respectively, μ = Coefficient of friction, between the belt and pulley, and θ = Angle of contact)

a)

(A) T₁/T₂ = μθ

b)

(B) log (T₁/T₂) = μθ

c)

(C) T₁/T₂ =eμθ

d)

(D) T₁/T₂ = log μθ

89.

The width of the pulley should be __________ width of the belt.

a)

(A) Equal to

b)

(B) Less than

c)

(C) Greater than

d)

(D) None of these

90.

The effective stress in wire ropes during normal working is equal to the stress due to

a)

(A) Axial load plus stress due to bending

b)

(B) Acceleration/retardation of masses plus stress due to bending

c)

(C) Axial load plus stress due to acceleration/retardation

d)

(D) Bending plus stress due to acceleration/retardation

Design of Transmission Systems_Unit-I

Total questions: 90

Worksheet time: 46mins

Similar Resources on Wayground