Quiz Questions

Question 1 1 Marks

Which is thermo plastic material?

A

Butyl rubber

B

Nylon

C

Neoprene

D

Vinyl polymers

Question 2 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 3 1 Marks

What is the unit of strain?

A

Kg/cm2

B

Newton/metre2

C

Metre

D

No unit

Question 4 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 5 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 6 1 Marks

Which force acts on crank shaft?

A

Shear stress

B

Torsional stress

C

Tensile stress

D

Compressive stress

Question 7 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 8 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 9 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 10 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 11 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 12 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 13 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 14 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 15 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 16 1 Marks

Which symbol is used to express change in length?

A

L

B

delta l

C

I

D

e

Question 17 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 18 1 Marks

Which force acts on rivets?

A

Tensile force

B

Compressive force

C

Shear force

D

Bending force

Question 19 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 20 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 21 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 22 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 23 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 24 1 Marks

Which affects the centre of gravity of the object

A

Weight

B

Mass

C

Density

D

Shape

Question 25 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 26 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 27 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 28 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 29 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 30 1 Marks

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

A

Stable

B

Neutral

C

Unstable

D

Horizontal

Question 31 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 32 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 33 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 34 1 Marks

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

A

Stable

B

Neutral

C

Unstable

D

Horizontal

Question 35 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 36 1 Marks

Which affects the centre of gravity of the object?

A

Weight

B

Mass

C

Density

D

Shape

Question 37 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 38 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 39 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 40 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 41 1 Marks

Which is elastic material?

A

Nylon

B

Polystyrenes

C

Celluloid

D

Polycarbonates

Question 42 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 43 1 Marks

Which is thermosetting plastic?

A

Vinyl polymers

B

Polystyrenes

C

Celluloid

D

Melamine resins

Question 44 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 45 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 46 1 Marks

What is the total cost of Air-conditioners installed in a college, 40 class room-each 1 Air-conditioner, Computer lab 5 Air- conditioners and conference hall 5 Air-conditioners (Cost of one air conditioner Rs.30000/- including installation)?

A

Rs.10 lakhs

B

Rs. 20 lakhs

C

Rs. 12 lakhs

D

Rs. 15 lakhs

Question 47 1 Marks

What is the weight of a rectangular block of a cost iron of 250cm X 20cm X 8cm (density of cast iron is 7.8 gm/cm3)?

A

312 kg

B

372 kg

C

410 kg

D

525 kg

Question 48 1 Marks

What is the minimum permissible area of conductor (U/G cable) for three and half cores cable?

A

25 sq.mm

B

50 sq.mm

C

5 sq.mm

D

100 sq.mm

Question 49 1 Marks

What is a under estimate?

A

No work started as per estimate

B

An estimate perfectly matches with actual

C

An estimate is fell short of the actual estimate

D

An estimate is exceeded the actual estimate

Question 50 1 Marks

Which one is included in machining estimation sheet?

A

Transport cost

B

Advertisement cost

C

Raw material cost

D

Tax

Which is thermo plastic material?

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

What is the unit of strain?

What is the formula for bulk modulus?

What is the ratio between stress and strain?

Which force acts on crank shaft?

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

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

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

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

What is the ratio between ultimate stress to working stress?

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

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 ratio of shear stress to shear strain?

Which symbol is used to express change in length?

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 rivets?

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?

What is the ratio between lateral strain and longitudinal strain?

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

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 base?

Which affects the centre of gravity of the object

What is the centre of gravity of a sphere?

What is the centre of gravity of a rectangular body?

Where the centre of gravity of a circle lies?

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

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

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

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?

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?

What is the centre of gravity of a sphere?

Which affects the centre of gravity of the object?

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

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

Where the centre of gravity of a circle lies?

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

Which is elastic material?

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)

Which is thermosetting plastic?

Which one is the ratio of stress?

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

What is the total cost of Air-conditioners installed in a college, 40 class room-each 1 Air-conditioner, Computer lab 5 Air- conditioners and conference hall 5 Air-conditioners (Cost of one air conditioner Rs.30000/- including installation)?

What is the weight of a rectangular block of a cost iron of 250cm X 20cm X 8cm (density of cast iron is 7.8 gm/cm<sup>3</sup>)?

What is the minimum permissible area of conductor (U/G cable) for three and half cores cable?

What is a under estimate?

Which one is included in machining estimation sheet?