Quiz Questions

Question 1 1 Marks

What is the length of each part is a copper wire of 225 metre long is cut into 900 equal parts?

A

0.23 metre

B

0.25 metre

C

0.28 metre

D

0.29 metre

Question 2 1 Marks

Which cast iron cannot be welded?

A

Grey cast iron

B

White cast iron

C

Malleable cast iron

D

Nodular cast iron

Question 3 1 Marks

Which mechanical property of a metal offers resistance to elastic deformation in a cutting tool?

A

Ductility

B

Malleability

C

Hardness

D

Toughness

Question 4 1 Marks

What is the perimeter of a rectangle whose length and breadth are 20 cm and 18 cm?

A

56 cm

B

66 cm

C

76 cm

D

86 mm

Question 5 1 Marks

How much watt second in 1 watt hour?

A

1000 watt sec

B

2000 watt sec

C

3600 watt sec

D

4000 watt sec

Question 6 1 Marks

What is the name of furnace to obtained cast iron?

A

Cupola

B

Mild steel - Blast furnace

C

Steel - Rever battery

D

Alloy metal - Electric furnace

Question 7 1 Marks

What is the ratio of power output to power input?

A

Work

B

Energy

C

Efficiency

D

Acceleration

Question 8 1 Marks

Simplify: (17.49x5.2)/(6.5)

A

13.69

B

13.79

C

13.89

D

13.99

Question 9 1 Marks

What is the density of aluminium?

A

2.7 g/cm3

B

3.7 g/cm3

C

4.7 g/cm3

D

5.7 g/cm3

Question 10 1 Marks

What is the block weighs (W) in kg, if volume (V) is 320 cm3 and density 8.9 g/cm3?

A

2.948 kg

B

2.848 kg

C

2.648 kg

D

2.448

Question 11 1 Marks

What is the cross sectional area of a circular ring of D = 38 mm d = 32mm?

A

320 mm2

B

330 mm2

C

340 mm2

D

350 mm2

Question 12 1 Marks

Which law states that at constant termperature the current passing through a closed circuit is directly proportional to the potential difference and inversely proportional to the resistance?

A

Ohm's law

B

Lenz's law

C

Newton's law

D

Hooke's law

Question 13 1 Marks

What is the formual for induced emf?

A

B2L sinq volts

B

BL sinq volts

C

BLV sinq volts

D

B2V sinq volts

Question 14 1 Marks

Which property of material enables to formation of permanent deformation without fracture?

A

Elasticity

B

Plasticity

C

Ductility

D

Brittleness

Question 15 1 Marks

What is the area of a (A) semicircle whose dia is 20 cm (d)?

A

147.1 cm2

B

157.1 cm2

C

167.1 cm2

D

177.1 cm2

Question 16 1 Marks

How many liters of water a cylindrical tank of radius 75 cm and height 100 cm can hold?

A

1766.25 liters

B

1767.25 liters

C

1768.25 liters

D

1769.25 liters

Question 17 1 Marks

A motor cycle tyre is sold for Rs 300/- what is the purchase price if 25% profit is added to it.

A

Rs 200

B

Rs 220

C

Rs 240

D

Rs 260

Question 18 1 Marks

Which property of a metal possessed by it melts when heat is applied?

A

Conductivity

B

Malleability

C

Fusibility

D

Tenacity

Question 19 1 Marks

Which property of a substance is opposing the flow of electric current?

A

Current

B

Voltage

C

Resistance

D

EMF

Question 20 1 Marks

What is the speed of a train of 80 metre long train passes a railway station platform of 120 metres length in 20 seconds?

A

30 km/hour

B

32 km/hour

C

34 km/hour

D

36 km/hour

Question 21 1 Marks

What is the diagonal of a square plate whose side is 28 cm?

A

39.29 cm

B

39.39 cm

C

39.49 cm

D

39.59 cm

Question 22 1 Marks

How much power does it consumes if an electric heater draws a current of 10 amps at 200 volts?

A

2000 watts

B

2010 watts

C

2020 watts

D

2030 watts

Question 23 1 Marks

What is the area of a sector of a circle of radius 5 cm and its angle is 96 Degree?

A

20.39 cm2

B

20.93 cm2

C

20.89 cm2

D

20.98 cm2

Question 24 1 Marks

Find the total surface area of a cast iron bar whose length, width and height are 20m, 15m and 12m.

A

1340 m2

B

1440 m2

C

1540 m2

D

1640 m2

Question 25 1 Marks

Which is the unit electrical power?

A

Volts

B

Ohms

C

Watts

D

Ampere