Quiz Questions

Question 1 1 Marks

What is the centre of gravity of a solid hemisphere from its base?

A

4r/5

B

3r/8

C

3r/4

D

r/2

Question 2 1 Marks

What is the name of the point at which all the weight of the body concentrated?

A

Initial point

B

Centre of gravity

C

Centroid

D

Central point

Question 3 1 Marks

Where the centre of gravity of a circle lies?

A

At its centre

B

Any where on its radius

C

Any where on its circumference

D

Any where on its diameter

Question 4 1 Marks

What is the centre of gravity of a rectangular body?

A

Longer side of rectangle

B

Shorter side of rectangle

C

At the point of intersection of its diagonals

D

At the corners

Question 5 1 Marks

Which state of equilibrium's example is, A cone resting on its base?

A

Un-stable

B

Neutral

C

Stable

D

Bothe A and B

Question 6 1 Marks

What is the centre of gravity of a right circular cone from its base?

A

h/2

B

h/3

C

h/4

D

h/5

Question 7 1 Marks

Which state of equilibrium's example is A cone resting on its tip?

A

Stable

B

Neutral

C

Unstable

D

Horizontal

Question 8 1 Marks

Which affects the centre of gravity of the object

A

Weight

B

Mass

C

Density

D

Shape

Question 9 1 Marks

What is the centre of gravity of a semi circle of diameter 12 cm?

A

2.24 cm

B

2.54 cm

C

3.25 cm

D

2.75 cm

Question 10 1 Marks

What is the centre of gravity of a sphere?

A

At the centre

B

On the circumference

C

At the diameter

D

At the radius

Question 11 1 Marks

Which state of equilibrium's example is, A cone resting on its base?

A

Un-stable

B

Neutral

C

Stable

D

Bothe A and B

Question 12 1 Marks

What is the centre of gravity of a right circular cone from its base?

A

h/2

B

h/3

C

h/4

D

h/5

Question 13 1 Marks

What is the centre of gravity of a rectangular body?

A

Longer side of rectangle

B

Shorter side of rectangle

C

At the point of intersection of its diagonals

D

At the corners

Question 14 1 Marks

Which affects the centre of gravity of the object?

A

Weight

B

Mass

C

Density

D

Shape

Question 15 1 Marks

What is the centre of gravity of a semi circle of diameter 12 cm?

A

2.24 cm

B

2.54 cm

C

3.25 cm

D

2.75 cm

Question 16 1 Marks

What is the centre of gravity of a solid hemisphere from its base?

A

4r/5

B

3r/8

C

3r/4

D

r/2

Question 17 1 Marks

Where the centre of gravity of a circle lies?

A

At its centre

B

Any where on its radius

C

Any where on its circumference

D

Any where on its diameter

Question 18 1 Marks

Which state of equilibrium's example is A cone resting on its tip?

A

Stable

B

Neutral

C

Unstable

D

Horizontal

Question 19 1 Marks

Which one of the following geometrical shapes centre of gravity lies from its base is 1/3 of its height?

A

Square

B

Rhombus

C

Triangle

D

Cone

Question 20 1 Marks

What is the name of the point at which all the weight of the body concentrated?

A

Initial point

B

Centre of gravity

C

Centroid

D

Central point

Question 21 1 Marks

What is the ratio between the change in dimension to its original dimension of the substance?

A

Stress

B

Strain

C

Poisson's ratio

D

Factor of safety

Question 22 1 Marks

What is the ratio between lateral strain and longitudinal strain?

A

Hooks law

B

Young's modulus

C

Bulk modulus

D

Poisson's ratio

Question 23 1 Marks

Which is thermo plastic material?

A

Butyl rubber

B

Nylon

C

Neoprene

D

Vinyl polymers

Question 24 1 Marks

Which one is the ratio of stress?

A

Load and area

B

Load and direction

C

Load and diameter

D

Load and time

Question 25 1 Marks

What is the unit of strain?

A

Kg/cm2

B

Newton/metre2

C

Metre

D

No unit

Question 26 1 Marks

What force will be required to punch a hole of 10 mm dia in a 1 mm thick plate, if the allowable shear stress is 50N/mm2? (Pi = 22/7)

A

1757 N

B

1575 N

C

1571.4 N

D

1577 N

Question 27 1 Marks

What is the ratio between stress and strain?

A

Yield point

B

Factor of safety

C

Youngs Modulus

D

Poisson's ratio

Question 28 1 Marks

Which symbol is used to express change in length?

A

L

B

delta l

C

I

D

e

Question 29 1 Marks

What is the formula for bulk modulus?

A

Tensile stress/Tensile strain

B

Compressive stress/Compressive strain

C

Volumetric stress/Volumetric strain

D

Shear stress/Shear strain

Question 30 1 Marks

What is the tensile strain if a force of 3.2 KN is applied to a bar of original length 2800 mm extends the bar by 0.5 mm?

A

0.0001786

B

0.0001687

C

0.0001867

D

0.0001968

Question 31 1 Marks

Which law states that within elastic limit stress is directly proportional to strain?

A

Newtons law

B

Hooks law

C

Joules law

D

Charles law

Question 32 1 Marks

What is the youngs modulus if a wire of 2m long, 0.8 mm2 in cross section increases its length by 1.6 mm on suspension of 8 kg weight from it?

A

1.25 kg/mm2

B

12.5 kg /mm2

C

125 kg/mm2

D

12500 kg/mm2

Question 33 1 Marks

What is the ratio of ultimate load to area of original cross section?

A

Factor of safety

B

Yield point

C

Ultimate stress

D

Youngs modulus

Question 34 1 Marks

What is the ratio of shear stress to shear strain?

A

Modulus of elasticity

B

Modulus of rigidity

C

Bulk modulus

D

Yield point

Question 35 1 Marks

What is the ratio between ultimate stress to working stress?

A

Bulk modulus

B

Young's modulus

C

Factor of safety

D

Modulus of rigidity

Question 36 1 Marks

Which is thermosetting plastic?

A

Vinyl polymers

B

Polystyrenes

C

Celluloid

D

Melamine resins

Question 37 1 Marks

How much strain is developed in an iron rod of 1 metre length gets elongated by 1 cm, if a force of 100 kg is applied at one end?

A

0.1

B

0.01

C

0.001

D

0.0001

Question 38 1 Marks

Which force acts on crank shaft?

A

Shear stress

B

Torsional stress

C

Tensile stress

D

Compressive stress

Question 39 1 Marks

What is the maximum percentage of stretch of its original length is allowable for elastic materials?

A

100%

B

200%

C

300%

D

400%

Question 40 1 Marks

What is the term used for maximum stress attained by a material before rupture?

A

Tensile stress

B

Compressive stress

C

Working stress

D

Ultimate stress

Question 41 1 Marks

What is the safe stress if the ultimate stress of a material is 35 kg/mm2 and factor of safety is 5?

A

0.143

B

0.7

C

1.43

D

7

Question 42 1 Marks

What is the ratio of change in length to original length?

A

Linear strain

B

Lateral strain

C

Volumetric strain

D

Poisson's ratio

Question 43 1 Marks

Which force acts on rivets?

A

Tensile force

B

Compressive force

C

Shear force

D

Bending force

Question 44 1 Marks

Which is elastic material?

A

Nylon

B

Polystyrenes

C

Celluloid

D

Polycarbonates

Question 45 1 Marks

What is the tensile stress if a square rod of 10 mm side is tested for a tensile load of 1000 kg?

A

1 kg/mm2

B

10 kg /mm2

C

100 kg/mm2

D

1000 kg/mm2

Question 46 1 Marks

What is the total wattage in a room if 2 tube lights of 50W rating, 2 fans of 80W rating, 2 numbers of light points of 60W rating, one fan point of 60W rating and one 3 pin socket of 100W rating?

A

340 W

B

440 W

C

540 W

D

640 W

Question 47 1 Marks

What is the relative permittivity of rubber?

A

Between 2 and 3

B

Between 5 and 6

C

Between 8 and 10

D

Between 12 and 14

Question 48 1 Marks

What is the term used for the method of calculating various quantities and expenditure on a particular job or process?

A

Estimation

B

Drawing

C

Specification

D

Plan

Question 49 1 Marks

What is the estimation of milling cost of a rectangular block size 100 X 80 X60 mm, if cost of the milling is Rs.2/sq.cm?

A

Rs.652/-

B

Rs.752/-

C

Rs.572/-

D

Rs.960/-

Question 50 1 Marks

Which authority publishes schedule of rates?

A

Individual

B

Corporate

C

Partnership firm

D

Government department

What is the centre of gravity of a solid hemisphere from its base?

What is the name of the point at which all the weight of the body concentrated?

Where the centre of gravity of a circle lies?

What is the centre of gravity of a rectangular body?

Which state of equilibrium's example is, A cone resting on its base?

What is the centre of gravity of a right circular cone from its base?

Which state of equilibrium's example is A cone resting on its tip?

Which affects the centre of gravity of the object

What is the centre of gravity of a semi circle of diameter 12 cm?

What is the centre of gravity of a sphere?

Which state of equilibrium's example is, A cone resting on its base?

What is the centre of gravity of a right circular cone from its base?

What is the centre of gravity of a rectangular body?

Which affects the centre of gravity of the object?

What is the centre of gravity of a semi circle of diameter 12 cm?

What is the centre of gravity of a solid hemisphere from its base?

Where the centre of gravity of a circle lies?

Which state of equilibrium's example is A cone resting on its tip?

Which one of the following geometrical shapes centre of gravity lies from its base is 1/3 of its height?

What is the name of the point at which all the weight of the body concentrated?

What is the ratio between the change in dimension to its original dimension of the substance?

What is the ratio between lateral strain and longitudinal strain?

Which is thermo plastic material?

Which one is the ratio of stress?

What is the unit of strain?

What force will be required to punch a hole of 10 mm dia in a 1 mm thick plate, if the allowable shear stress is 50N/mm<sup>2</sup>? (Pi = 22/7)

What is the ratio between stress and strain?

Which symbol is used to express change in length?

What is the formula for bulk modulus?

What is the tensile strain if a force of 3.2 KN is applied to a bar of original length 2800 mm extends the bar by 0.5 mm?

Which law states that within elastic limit stress is directly proportional to strain?

What is the youngs modulus if a wire of 2m long, 0.8 mm2 in cross section increases its length by 1.6 mm on suspension of 8 kg weight from it?

What is the ratio of ultimate load to area of original cross section?

What is the ratio of shear stress to shear strain?

What is the ratio between ultimate stress to working stress?

Which is thermosetting plastic?

How much strain is developed in an iron rod of 1 metre length gets elongated by 1 cm, if a force of 100 kg is applied at one end?

Which force acts on crank shaft?

What is the maximum percentage of stretch of its original length is allowable for elastic materials?

What is the term used for maximum stress attained by a material before rupture?

What is the safe stress if the ultimate stress of a material is 35 kg/mm<sup>2</sup> and factor of safety is 5?

What is the ratio of change in length to original length?

Which force acts on rivets?

Which is elastic material?

What is the tensile stress if a square rod of 10 mm side is tested for a tensile load of 1000 kg?

What is the total wattage in a room if 2 tube lights of 50W rating, 2 fans of 80W rating, 2 numbers of light points of 60W rating, one fan point of 60W rating and one 3 pin socket of 100W rating?

What is the relative permittivity of rubber?

What is the term used for the method of calculating various quantities and expenditure on a particular job or process?

What is the estimation of milling cost of a rectangular block size 100 X 80 X60 mm, if cost of the milling is Rs.2/sq.cm?

Which authority publishes schedule of rates?