Test: Belt, Rope & Chain Drives - 3

Question 1

Which of the following ropes will be most flexible?

Accepted Answer

6 x 37

Answer

6 x 7

Answer

6 x 19

Answer

8 x 19

Question 2

It is usually preferable in chain drive to use

Accepted Answer

odd number of teeth on sprocket

Answer

even number of teeth on sprocket

Answer

either even or odd, but certain minimum number

Answer

maximum number of teeth permissible on sprocket

Question 3

Which one of the following is positive drive

Accepted Answer

Chain drive

Answer

Rope drive

Answer

V-belt drive

Answer

Flat belt drive

Question 4

The length of the belt in case of cross-belt drive is given in terms of centre distance between pulleys (C), diameter of the pulley D and d as:

Accepted Answer

Answer

Answer

Answer

Question 5

The length of belt in case of open-belt drive

Accepted Answer

Answer

Answer

Answer

Question 6

A 6 x 19 rope implies that there are

Accepted Answer

6 strands and 19 wires in each strand

Answer

6 wires in each strand and 19 strands in the rope

Answer

6 large diameter wires and 19 small diameter wires

Answer

19 large diameter wires and 6 small diameter wire

Question 7

In case of belt drives, the effect of the centrifugal tension is to

Accepted Answer

reduce the driving power of the belt

Answer

cause the belt to leave the pulley and increases the power to be transmitted

Answer

cause the belt to stay on the pulley and increase the power to be transmitted

Answer

stretch the belt in longitudinal direction

Question 8

In a belt drive the centrifugal tension is 1 kN. The ratio of tensions is 2 and runs at a linear speed of 10 m/s and has to transmits 20 kW. What should be the initial tension?

Accepted Answer

4 kN

Answer

3 kN

Answer

2 kN

Answer

2.5 kN

Question 9

The creep in a belt drive is due to the

Accepted Answer

unequal tension on tight and slack sides of the belt

Answer

material of the pulleys

Answer

unequal size of the pulleys

Answer

material of the belt

Question 10

Crowning of pulleys is generally done to

Accepted Answer

prevent the belt from running off the pulley

Answer

perfect belt joint so that it may not break while running

Answer

reduce belt friction

Answer

dissipate the heat generated due to friction

Question 11

In V-belt, belt should contact groove at

Accepted Answer

sides only

Answer

bottom only

Answer

sides or bottom

Answer

both sides and bottom simultaneously

Question 12

Given that W = weight of load handled, W_r = weight of rope and f = acceleration, the additional load in ropes of a hoist during starting is given by:

Accepted Answer

Answer

Answer

Answer

Question 13

In flat belt drive, if the slip between the driver and the belt is 1%, that between belt and follower is 3% and driver and flower pulley diameters are equal, then the velocity ratio of the drive will be:

Accepted Answer

0.96

Answer

0.99

Answer

0.98

Answer

0.97

Question 14

Total slip will occur in a belt drive when

Accepted Answer

angle of rest is zero

Answer

angle of creep is zero

Answer

angle of rest is greater than angle of creep

Answer

angle of creep is greater than angle of rest

Question 15

The ratio of tension on the tight side to that slack side in a flat belt drive is

Accepted Answer

an exponential function of the product of coefficient of friction and lap angle

Answer

proportional to the product of coefficient of friction and lap angle

Answer

proportional to the lap angle

Answer

proportional to the coefficient of friction

Question 16

A 50 KW motor using six V belts is used in a pulp mill. If one of the belts breaks after a month ofcontinuous running, then

Accepted Answer

all the belts are to be replaced

Answer

the broken belt is to be replaced by a similar belt

Answer

the broken belt and two adjacent belts are to be replaced

Answer

the broken belt and one adjacent belt are to be replaced

Question 17

A 0.2 thick tape goes over a frictionless pulley of 25 mm diameter. If E of the material is 100 GPa, then the maximum stress induced in the tape is

Accepted Answer

800 MPa

Answer

100 MPa

Answer

200 MPa

Answer

400 MPa

Question 18

What diameter should the driving pulley have on which a rubber belt runs so that bending stress in belt is limited to 5 N/mm²(the belt cross-section is a rectangle 15 mm thick x 110 mm wide, E for belt material is 100 N/mm²)

Accepted Answer

300 mm

Answer

30 mm

Answer

150 mm

Answer

15 mm

Question 19

The following data refers to an open belt drive

Ratio of tensions may be calculated using relation

Accepted Answer

&theta;B&mu;B

Answer

&theta;A&mu;A

Answer

Answer

Question 20

In a cone pulley, if the sum of radii of the pulleys on the driving and driven shafts is constant, then

Accepted Answer

cross belt drive is recommended

Answer

open belt drive is recommended

Answer

both open belt drive and cross belt drive are recommended

Answer

the drive is recommended depending upon the torque transmitted

Belt, Rope & Chain Drives - 3 - Free MCQ Practice Test with solutions,

MCQ Practice Test & Solutions: Test: Belt, Rope & Chain Drives - 3 (20 Questions)

Which of the following ropes will be most flexible?

It is usually preferable in chain drive to use

Which one of the following is positive drive

The length of the belt in case of cross-belt drive is given in terms of centre distance between pulleys (C), diameter of the pulley D and d as:

The length of belt in case of open-belt drive

A 6 x 19 rope implies that there are

In case of belt drives, the effect of the centrifugal tension is to

In a belt drive the centrifugal tension is 1 kN. The ratio of tensions is 2 and runs at a linear speed of 10 m/s and has to transmits 20 kW. What should be the initial tension?

The creep in a belt drive is due to the

Crowning of pulleys is generally done to

In V-belt, belt should contact groove at

Given that W = weight of load handled, W_r = weight of rope and f = acceleration, the additional load in ropes of a hoist during starting is given by:

In flat belt drive, if the slip between the driver and the belt is 1%, that between belt and follower is 3% and driver and flower pulley diameters are equal, then the velocity ratio of the drive will be:

Total slip will occur in a belt drive when

The ratio of tension on the tight side to that slack side in a flat belt drive is

A 50 KW motor using six V belts is used in a pulp mill. If one of the belts breaks after a month ofcontinuous running, then

A 0.2 thick tape goes over a frictionless pulley of 25 mm diameter. If E of the material is 100 GPa, then the maximum stress induced in the tape is

What diameter should the driving pulley have on which a rubber belt runs so that bending stress in belt is limited to 5 N/mm²(the belt cross-section is a rectangle 15 mm thick x 110 mm wide, E for belt material is 100 N/mm²)

The following data refers to an open belt drive

Ratio of tensions may be calculated using relation

In a cone pulley, if the sum of radii of the pulleys on the driving and driven shafts is constant, then

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Belt, Rope & Chain Drives - 3 - Free MCQ Practice Test with solutions,

MCQ Practice Test & Solutions: Test: Belt, Rope & Chain Drives - 3 (20 Questions)

Which of the following ropes will be most flexible?

It is usually preferable in chain drive to use

Which one of the following is positive drive

The length of the belt in case of cross-belt drive is given in terms of centre distance between pulleys (C), diameter of the pulley D and d as:

The length of belt in case of open-belt drive

A 6 x 19 rope implies that there are

In case of belt drives, the effect of the centrifugal tension is to

In a belt drive the centrifugal tension is 1 kN. The ratio of tensions is 2 and runs at a linear speed of 10 m/s and has to transmits 20 kW. What should be the initial tension?

The creep in a belt drive is due to the

Crowning of pulleys is generally done to

In V-belt, belt should contact groove at

Given that W = weight of load handled, Wr = weight of rope and f = acceleration, the additional load in ropes of a hoist during starting is given by:

In flat belt drive, if the slip between the driver and the belt is 1%, that between belt and follower is 3% and driver and flower pulley diameters are equal, then the velocity ratio of the drive will be:

Total slip will occur in a belt drive when

The ratio of tension on the tight side to that slack side in a flat belt drive is

A 50 KW motor using six V belts is used in a pulp mill. If one of the belts breaks after a month ofcontinuous running, then

A 0.2 thick tape goes over a frictionless pulley of 25 mm diameter. If E of the material is 100 GPa, then the maximum stress induced in the tape is

What diameter should the driving pulley have on which a rubber belt runs so that bending stress in belt is limited to 5 N/mm2 (the belt cross-section is a rectangle 15 mm thick x 110 mm wide, E for belt material is 100 N/mm2)

The following data refers to an open belt drive Ratio of tensions may be calculated using relation

In a cone pulley, if the sum of radii of the pulleys on the driving and driven shafts is constant, then

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Topicwise Question Bank for Mechanical Engineering

Top Courses for Mechanical Engineering

About this Mechanical Engineering Practice Test

Explore more Mechanical Engineering Study Resources

Given that W = weight of load handled, W_r = weight of rope and f = acceleration, the additional load in ropes of a hoist during starting is given by:

What diameter should the driving pulley have on which a rubber belt runs so that bending stress in belt is limited to 5 N/mm²(the belt cross-section is a rectangle 15 mm thick x 110 mm wide, E for belt material is 100 N/mm²)

The following data refers to an open belt drive

Ratio of tensions may be calculated using relation