Quiz Questions

Question 1 1 Marks

What is the resistance of an electric iron if the rating of electric iron is 220 V and 500 watts?

A

94.8 ohms

B

95.8 ohms

C

96.8 ohms

D

97.8 ohms

Question 2 1 Marks

What will be the rpm of smaller gear if a 180 mm dia meshes with 60 mm dia gear and the bigger gear makes 60 rpm?

A

120 rpm

B

140 rpm

C

160 rpm

D

180 rpm

Question 3 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 4 1 Marks

What is the carbon percentage in medium carbon steel?

A

0.05% to 0.15%

B

0.15% to 0.25%

C

0.25% to 0.5%

D

0.5% to 1.5%

Question 5 1 Marks

What is the side of a square whose area is 625 mm2?

A

15 mm

B

20 mm

C

25 mm

D

30 mm

Question 6 1 Marks

Convert 52% into fraction?

A

(9/25)

B

(11/25)

C

(13/25)

D

(17/25)

Question 7 1 Marks

Which is equal to electric power?

A

R2I watts

B

I2R watts

C

RI

D

IRA

Question 8 1 Marks

What is the force with which a body is attracted by the earth towards its centre?

A

Mass

B

Weight

C

Volume

D

Density

Question 9 1 Marks

Which is same in series connection of resistors in a circuit?

A

Current

B

Voltage

C

Resistance

D

Power

Question 10 1 Marks

What is the power if an emf of one volt causes a current flow of 1ampere?

A

1 watt

B

1 kilowatt

C

1 HP

D

1 Kilowatt hour

Question 11 1 Marks

What is the potential energy in a body of mass 10 kg kept on the top of a pole 20 metres height?

A

1942 Joules

B

1952 Joules

C

1962 Joules

D

1972 Joules

Question 12 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 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

What is the decimal fraction of conversion of 18.5%?

A

0.185

B

0.175

C

0.165

D

0.195

Question 15 1 Marks

What is the area of a right angled triangle having a base 10 cm and height 5 cm?

A

20 sq.cm

B

25 sq.cm

C

30 sq.cm

D

35 sq.cm

Question 16 1 Marks

What is the filament resistance if a 6 volt bulb draws a current of 0.5 Amps?

A

12 W

B

10 W

C

3 W

D

1.2 W

Question 17 1 Marks

Which insulator is used in over head lines?

A

Mica

B

Rubber

C

P.V.C

D

Porcelain

Question 18 1 Marks

Which property of a metal enables it by which it can be drawn out into wires under tension without rupture?

A

Ductility

B

Malleability

C

Hardness

D

Brittleness

Question 19 1 Marks

What is the total surface area of a cylinder having radius 2 metres and height 5 metres?

A

86 sq.metre

B

88 sq.metre

C

90 sq.metre

D

92 sq.metre

Question 20 1 Marks

Find the curved surface area of a cylinder 10 cm dia and 20 cm height?

A

620 cm2

B

628 cm2

C

630 cm2

D

638 cm2

Question 21 1 Marks

Which rubber is used as insulator for power cables and control wires?

A

Butyl

B

Hypalone

C

Silicon

D

Nitrite butadiene

Question 22 1 Marks

What is the current?
 
R = 50 Ohms
 
220 Volts
 
I =______Amps

A

4.1 Amps

B

4.2 Amps

C

4.3 Amps

D

4.4 Amps

Question 23 1 Marks

What is the potential energy, if a body of mass 250 kg is at a height of 30 metre?

A

72.57 KJ

B

73.57 KJ

C

74.57 KJ

D

75.57 KJ

Question 24 1 Marks

What is termed as the quantity of matter contained in a body?

A

Density

B

Volume

C

Mass

D

Specific gravity

Question 25 1 Marks

How many millimetres are there in 1 inch?

A

2.54 mm

B

25.4 mm

C

24.5 mm

D

2.45 mm

Question 26 1 Marks

Which metal contains iron as a major content?

A

Brass metal

B

Bronze metal

C

Zinc

D

Ferrous metal

Question 27 1 Marks

What is the kinetic energy of a bullet of mass 5gm travels with a speed of 500 m/sec?

A

620 Joules

B

625 Joules

C

630 Joules

D

635 Joules

Question 28 1 Marks

What is called if a body changes its position with respect to its surroundings?

A

Body at rest

B

Body at motion

C

Speed

D

Velocity

Question 29 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 30 1 Marks

How many hours will take for a 100 watts bulb to consume 1 kwh energy?
 
W = 1 Kwh
 
P = 100 Watts
 
t = _____Hours

A

10 hours

B

12 hours

C

18 hours

D

24 hours

Question 31 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 32 1 Marks

What is the other name of low carbon steel?

A

Low alloy steel

B

High alloy steel

C

High speed steel

D

Mild steel

Question 33 1 Marks

What is the formula for speed?

A

Distance covered/Time

B

Change in velocity/Time

C

Distance in definite direction /Time

D

Change in momentum/Time

Question 34 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 35 1 Marks

What is the area of a square whose side is 18 cm?

A

26 cm2

B

36 cm2

C

72 cm2

D

324 cm2

Question 36 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 37 1 Marks

What is the square root of 0.017?

A

0.001

B

0.13

C

0.00001

D

0.000001

Question 38 1 Marks

What is the weight force of a car has a mass of 800 kg?(Take g = 9.81m/sec)

A

7848 Newton

B

7748 Newton

C

7847 Newton

D

7487 Newton

Question 39 1 Marks

What is the flow of electrons in any conductor?

A

Voltage

B

Current

C

Resistance

D

Power

Question 40 1 Marks

What is the ratio of 4 kg to 800 grams?

A

05:01

B

04:08

C

08:04

D

02:04

Question 41 1 Marks

Convert decimal 0.000659 to fraction?

A

(659/1000)

B

(659/10000)

C

(659/100000)

D

(659/1000000)

Question 42 1 Marks

How many days a mechanic takes to assemble 64 machines if he assembles 8 machines in 3 days?

A

20 days

B

22 days

C

24 days

D

26 days

Question 43 1 Marks

Which alloy used in electric lamp as filament?

A

Cobalt

B

Vanadium

C

Tungsten

D

Silicon

Question 44 1 Marks

Which is very good conductor?

A

Copper

B

Cast iron

C

Wrought iron

D

Steel

Question 45 1 Marks

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

A

Elasticity

B

Plasticity

C

Ductility

D

Brittleness

Question 46 1 Marks

What is the equivalent unit for 1 horse power in metric system?

A

75 kg.m/sec

B

76 kg.m/sec

C

77 kg.m/sec

D

78 kg.m/sec

Question 47 1 Marks

What metals contained in brass alloy?

A

Copper and aluminium

B

Copper and lead

C

Copper and zinc

D

Copper and tin

Question 48 1 Marks

Wha is the mass if the density of a body is 7.6 g/cm3 and its volume is 25 cm3?

A

190 grams

B

200 grams

C

210 grams

D

220 grams

Question 49 1 Marks

Which property of metal has its power of returning to its original shape after the applied force is released?

A

Malleability

B

Tenacity

C

Elasticity

D

Plasticity

Question 50 1 Marks

What is the square root of 529?

A

12

B

23

C

33

D

43

Question 51 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 52 1 Marks

What maximum height a stone will reach if it is thrown upwords with a velocity of 20m/sec?(g = 10m/sec2)

A

10 m

B

20 m

C

30 m

D

40 m

Question 53 1 Marks

What is the unit for velocity?

A

Metre/second

B

Metre/second2

C

Metre/minute

D

Metre/hour

Question 54 1 Marks

What is the percentage of copper if the casting weight of copper 42.3 kg and tin weight 2.7 kg?

A

Cu 92%

B

Cu 94%

C

Cu 96%

D

Cu 98%

Question 55 1 Marks

How many watts for 1 horse power in metric system?

A

725.5 watts

B

735.5 watts

C

745.5 watts

D

755.5 watts

Question 56 1 Marks

What is the total resistance if two resistances of 4 ohms and 6 ohms are connected in parallel?

A

10

B

2.4

C

5

D

4

Question 57 1 Marks

What is the HCF of 18, 42, 24?

A

2

B

6

C

18

D

24

Question 58 1 Marks

What is the name of the property of an insulation that should brake down or puncture on application of high voltage?

A

Di-electric strength

B

Specific resistance

C

Mechanical strenth

D

Non absorption

Question 59 1 Marks

What is the volume of a rectangular tank of 30 m length, 20m width and 10m height?

A

5900 m3

B

6000 m3

C

6100 m3

D

6200 m3

Question 60 1 Marks

What is the area of an equilateral triangle of side 450 mm?

A

856.82 cm2

B

866.82 cm2

C

876.82 cm2

D

886.82 cm2

Question 61 1 Marks

What is the voltage?
 
R = 250 Ohms
 
I = 0.44 Amps
 
V = _____Volts

A

100 Volts

B

105 Volts

C

108 Volts

D

110 Volts

Question 62 1 Marks

What is the specific gravity of the metal, if the weighs 6.5 kgf in air and 3.5 kgf in water?

A

6.166

B

3.166

C

2.166

D

1.166

Question 63 1 Marks

What is the formula for total surface area of a cylinder?

A

2 Pi r (h + r)

B

Pi r (h + r)

C

Pi rh

D

2 Pi rh

Question 64 1 Marks

Find the total surface area of cube whose side is 25 cm.

A

3740 cm2

B

3745 cm2

C

3750 cm2

D

3755 cm2

Question 65 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 66 1 Marks

What is the unit of acceleration of an object?

A

Metre/second

B

Metre/second2

C

Metre/minutes

D

Metre/minutes2

Question 67 1 Marks

What is the formula for acceleration?

A

Metre/second

B

Metre/second2

C

Metre/minute

D

Metre/hour

Question 68 1 Marks

What is called if a body does not change its position with respect to its surroundings?

A

Body at motion

B

Body at rest

C

Speed

D

Velocity

Question 69 1 Marks

What is the current Flow in the bulb?
 
P = 550 watts
 
R = 22 Ohms
 
I = ______Amps

A

2 Amps

B

3 Amps

C

4 Amps

D

5 Amps

Question 70 1 Marks

Which statement is correct according to ohm's law?

A

I = 1/V

B

I = R

C

I = V/R

D

I = R/V

Question 71 1 Marks

What are the two classifications of system of units?

A

British and Metric

B

Gravitational and non-gravitational

C

Fundamental and derived

D

Metric and International

Question 72 1 Marks

What percentage of 80 is 20?

A

0.8

B

0.4

C

0.25

D

0.2

Question 73 1 Marks

Which is the unit electrical power?

A

Volts

B

Ohms

C

Watts

D

Ampere

Question 74 1 Marks

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

A

13.69

B

13.79

C

13.89

D

13.99

Question 75 1 Marks

Which machine converts mechanical energy into electrical energy?

A

Battery

B

Generator

C

Heater

D

Iron box

Question 76 1 Marks

What is the improper fraction for the given mixed fraction ? 7 x (3/7)

A

(52/7)

B

"7/52"

C

"28/7"

D

"7/28"

Question 77 1 Marks

Which is mineral insulator

A

Glass

B

Quartz

C

Mica

D

Porcelain

Question 78 1 Marks

How much work done in one hour, if a pump can raise 100 liters of water through a height of 200 meters in one minutes?

A

12 x 104 kg meter

B

12 x 105 kg meter

C

12 x 106 kg meter

D

12 x 107 kg meter

Question 79 1 Marks

Divide (20/31)/(15/62)

A

2(4/3)

B

2(1/3)

C

2(3/2)

D

2(2/3)

Question 80 1 Marks

What is the square root of decimal number 550.37?

A

21.26

B

22.26

C

22.46

D

23.46

Question 81 1 Marks

How much is 8% of 40 kg?

A

2.2 kg

B

3.2 kg

C

4.2 kg

D

5.2 kg

Question 82 1 Marks

Which alloy steel is used to make permanent magnets?

A

Silicon steel

B

Manganese steel

C

Vanadium steel

D

Cobalt steel

Question 83 1 Marks

What is the carbon percentage in high carbon steel?

A

0.02% to 0.03%

B

0.15% to 0.25%

C

0.25% to 0.50%

D

0.50% to 1.50%

Question 84 1 Marks

What is the work done, if a force of 250 newtons acted upon a body and the body has been moved through a distance of 15 metres?

A

3720 Joules

B

3730 Joules

C

3740 Joules

D

3750 Joules

Question 85 1 Marks

What is the formula for potential energy?

A

mgh joule

B

mgh2 joule

C

1/2 mgh joule

D

2/3 mgh joule

Question 86 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 87 1 Marks

Which is the unit of resistance?

A

Ampere

B

Volt

C

Ohm

D

Watt

Question 88 1 Marks

What is the carbon percentage in low carbon steel?

A

0.02% to 0.03%

B

0.15% to 0.25%

C

0.25% to 0.50%

D

0.50% to 1.50%

Question 89 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 90 1 Marks

What is the area of a rectangle, whose length and breadth are 10cm and 8cm respectively?

A

75 cm2

B

80 cm2

C

85 cm2

D

90 cm2

Question 91 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 92 1 Marks

What is the x value for x2 + 62 = 126?

A

4

B

6

C

8

D

10

Question 93 1 Marks

What is velocity of a body travels a distance of 168 metres in a line in 21 seconds?

A

6 m/sec

B

8 m/sec

C

10 m/sec

D

12 m/sec

Question 94 1 Marks

What is the acceleration of an aeroplane taking off from landing field has to run 700 metres if it leaves the ground in 10 seconds from the start?

A

8 metre/sec2

B

10 metre/sec2

C

12 metre/sec2

D

14 metre/sec2

Question 95 1 Marks

What is the total resistance if three resistances of 3 ohms, 9 ohms and 5 ohms are connected in series?

A

11 ohms

B

7 ohm

C

17 ohms

D

1/17 ohms

Question 96 1 Marks

What is the volume of mercury in cm3, if the mass (m) of mercury is 136 grams (g) and density (r) of mercury is 13.6 g/cm3?

A

136 cm3

B

13.6 cm3

C

10.6 cm3

D

10.0 cm3

Question 97 1 Marks

What is the mass in gram, if a force of 15 dyres acting on a mass m producing an acceleration of 2.5 cm/sec2?

A

9 grams

B

8 grams

C

7 grams

D

6 grams

Question 98 1 Marks

Which metal is widely used for making casting of machinery parts?

A

Grey cast iron

B

White cast iron

C

Malleable cast iron

D

Wrought iron

Question 99 1 Marks

Which law states about electromagnetic induction?

A

Ohm's law

B

Hooke's law

C

Lenz's law

D

Faraday's law

Question 100 1 Marks

What is the specific gravity of the solid, if density of the solid is 19.5 g/cm3?

A

8

B

18.5

C

19

D

19.5

Question 101 1 Marks

What is the definition of ratio?

A

Relation of two quantities of the same kind

B

Relation of two quantities of the different kind

C

Equality between two ratios

D

Inequality between two ratios

Question 102 1 Marks

What does EMF stands for?

A

Electronic Magnetic Force

B

Electro Motive Force

C

Electro Magnetic Force

D

Electromated Force

Question 103 1 Marks

What is the rated power if an adjustable resistor bears the following label 1.5 k ohms/ 0.08A?

A

9.2 watts

B

9.4 watts

C

9.6 watts

D

9.8 watts

Question 104 1 Marks

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

A

Current

B

Voltage

C

Resistance

D

EMF

Question 105 1 Marks

How much voltage will be required to illuminate a 40 watts fluorescent lamp draws a current of 0.10 amperes?

A

390 volts

B

395 volts

C

400 volts

D

405 volts

Question 106 1 Marks

What is the formula for kinetic energy?

A

(1/2) mv joule

B

(1/2) mv2 joule

C

(2/3) mv2 joule

D

(2/3) mv joule

Question 107 1 Marks

What is volume of the cylinder whose radius is 7 cm and height 12 cm?

A

1842 c.c

B

1844 c.c

C

1846 c.c

D

1847 c.c

Question 108 1 Marks

What is the area of a circle of diameter 50 cm?

A

1932.5 cm2

B

1942.5 cm2

C

1952.5 cm2

D

1962.5 cm2

Question 109 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 110 1 Marks

What denotes letter M in MKS system?

A

Mile

B

Meter

C

Millimeter

D

Micron

Question 111 1 Marks

What is the volume (V) of mercury in cm3, if mass (m) of mercury is 1 kg and density (r) is 13.6 g/cm3?

A

73.53 cm3

B

73.43 cm3

C

73.33 cm3

D

73.23 cm3

Question 112 1 Marks

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

A

Conductivity

B

Malleability

C

Fusibility

D

Tenacity

Question 113 1 Marks

What is the rate of change of displacement of a body?

A

Body at rest

B

Body at motion

C

Speed

D

Velocity

Question 114 1 Marks

How many watts for 1 horse power in British system?

A

726 watts

B

736 watts

C

746 watts

D

756 watts

Question 115 1 Marks

How many newtons for 1 kilogram?

A

981 Newtons

B

98.1 Newtons

C

9.81 Newtons

D

0.981 Newtons

Question 116 1 Marks

Which one of the following properties is the mechanical properties of metal?

A

Fusibility

B

Ductility

C

Corrosion

D

Structure

Question 117 1 Marks

Which among the following is an insulator?

A

Copper

B

Aluminium

C

Silver

D

Mica

Question 118 1 Marks

What is the unit of speed?

A

Metre/second

B

Metre/second2

C

Metre/minute

D

Metre/hour

Question 119 1 Marks

What is the primeter of scalene. Triangle having sides of 40mm, 20mm and 28mm?

A

68 mm

B

78 mm

C

88 mm

D

98 mm

Question 120 1 Marks

What is the resistance?
 
I = 11.5 Amps
 
V = 380 Volts
 
R = _______Ohms

A

13 ohms

B

23 ohms

C

33 ohms

D

43 ohms

Question 121 1 Marks

Convert 0.456 decimal fraction into percentage?

A

0.456

B

0.0456

C

45.6

D

0.000456

Question 122 1 Marks

What is the length L2, if total length (L) is 2.75 metre and L1:L2 = 2:3?

A

1.1 metre

B

1.25 metre

C

1.65 metre

D

1.75 metre

Question 123 1 Marks

Which is the example for statically induced emf?

A

Generator

B

Motor

C

Transformer

D

Refrigerator

Question 124 1 Marks

What is the LCM of 12, 18, 6, 36?

A

12

B

18

C

36

D

42

Question 125 1 Marks

What is the product of 0.003 x 0.5?

A

0.00015

B

0.0015

C

0.015

D

0.15

Question 126 1 Marks

What is called if a force of 1Newton acts on a body and moves it through a distance of 1 metre?

A

1 Joule

B

10 Joules

C

1 dyne

D

10 dynes

Question 127 1 Marks

Which is the unit of current?

A

Ampere

B

Volt

C

Ohm

D

Watt

Question 128 1 Marks

What is the power required?
 
I = 0.455 Amps
 
R = 484 Ohms
 
P = _____Watts

A

98.2 watts

B

99.2 watts

C

100.2 watts

D

101.2 watts

Question 129 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 130 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 131 1 Marks

What is the retardation of a car moving with a velocity of 50 km/hr is brought to rest in 45 seconds?

A

0.40 m/sec2

B

0.30 m/sec2

C

0.20 m/sec2

D

0.10 m/sec2

Question 132 1 Marks

What is called mass per unit volume of a substances?

A

Mass

B

Weight

C

Density

D

Volume

Question 133 1 Marks

Which furnace is used to get pig iron from iron ore?

A

Mild steel - Rever battery

B

Electric furnace

C

Blast furnace

D

Cupola

Question 134 1 Marks

What is the area of an ellipse if the major and minor axes are 5 cm and 3 cm respectively?

A

27 cm2

B

37 cm2

C

47 cm2

D

57 cm2

Question 135 1 Marks

What is the acceleration of a car if the speed of the car has increased from 25 km per hour to 40 km per hour in one minute?

A

0.059 m/sec2

B

0.59 m/sec2

C

0.069 m/sec2

D

0.69 m/sec2

Question 136 1 Marks

What is the name of the metal which do not contain iron?

A

Ferrous metals

B

Non-ferrous metals

C

Insulating metals

D

Non-Insulating metals

Question 137 1 Marks

Which steel is used for making files and cold chisel?

A

Low carbon steel

B

Midium carbon steel

C

High carbon steel

D

Stainless steel

Question 138 1 Marks

Simplify: (3/4)+(2/5)-(5/20)

A

(3/10)

B

(9/10)

C

(12/10)

D

(13/10)

Question 139 1 Marks

What is the specific gravity of the metal, if the piece of metal weighs 150 grams in air and 125 grams in water?

A

6

B

10

C

15

D

25

Question 140 1 Marks

What is the work done in joules if a load of 15.5 kg is lifted through a height of 4.4 metres?

A

639 Joules

B

649 Joules

C

659 Joules

D

669 Joules

Question 141 1 Marks

What is the density (r) in g/cm3 of an iron cube, if it weighs (W) 4.8 kg and volume (V) is 640 cm,3?

A

6.6 g/cm3

B

6.9 g/cm3

C

7.2 g/cm3

D

7.5 g/cm3

Question 142 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 143 1 Marks

What is called the ratio between the density of a substances density of water at 4 Degree Centigrade?

A

Density

B

Specific gravity

C

Mass

D

Weight

Question 144 1 Marks

Which is brittle metal?

A

Cast iron

B

Steel

C

Mild steel

D

Alloy steel

Question 145 1 Marks

What is the formula for velocity?

A

Distance covered/Time

B

Displacement/Time

C

Change in velocity/Time

D

Change of momentum/Time

Question 146 1 Marks

What is the unit of intensity of magnetic field?

A

wb/m

B

m/wb

C

Hertz

D

Coloumb

Question 147 1 Marks

Which insulating material is used for making switches?

A

Porcelain

B

PVC

C

Bakelite

D

Ebonite

Question 148 1 Marks

What is the ore of aluminium?

A

Hematite

B

Mallatite

C

Bauxite

D

Lemonite

Question 149 1 Marks

What is called if a body posses both magnitude and direction of velocity?

A

Speed

B

Velocity

C

Vector quantity

D

Scalar quantity

Question 150 1 Marks

Which is the example for dynamicallly induced Emf?

A

Motor

B

Generator

C

Car

D

Motor bike

Question 151 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 152 1 Marks

What is the capacity of a conical tank of radius 2 m and height 5m?

A

11 m3

B

21 m3

C

31 m3

D

41 m3

Question 153 1 Marks

What is the ratio of power output to power input?

A

Work

B

Energy

C

Efficiency

D

Acceleration

Question 154 1 Marks

What is the volume of sphere of radius 7 cm?

A

1436 cm3

B

1463 cm3

C

1346 cm3

D

1636 cm3

Question 155 1 Marks

Which one is non-metal?

A

Mercury

B

Graphite

C

Brass

D

Iron

Question 156 1 Marks

What is the formula for finding volume of a hollow cylinder having outer radius 'R' inner radius 'r' and height 'h'?

A

Pi (R2 - r2)h

B

Pi/3 (R2 - r2) h

C

2/3 Pi (R2 - r2) h

D

4/3 Pi (R2 - r2)h

Question 157 1 Marks

Which alloy steel is using for making precious instrument?

A

Silicon steel

B

Manganese steel

C

Invar steel

D

Vanadium

Question 158 1 Marks

Which metal cannot be forged?

A

Alloy steel

B

Mild steel

C

Steel

D

Cast iron

Question 159 1 Marks

What is called if a body posses only magnitude or size alone?

A

Speed

B

Velocity

C

Vector quantity

D

Scalar quantity

Question 160 1 Marks

What are fundamental units?

A

Length, Mass, Volume

B

Length, Mass, Time

C

Length, Mass, Area

D

Length, Pressure, Volume

Question 161 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 162 1 Marks

What is the capacity of a body to do work is called?

A

Energy

B

Power

C

Acceleration

D

Force

Question 163 1 Marks

What is the voltage of the immersion heater?
 P = 500 watts
 
I = 2.27 Amps
 
V = ______Volts

A

200.3 volts

B

210.3 volts

C

220.3 volts

D

230.3 volts

Question 164 1 Marks

What is the work done in unit time?

A

Energy

B

Power

C

Force

D

Acceleration

Question 165 1 Marks

How many ergs for 1 Joule?

A

10^3 ergs

B

10^5 ergs

C

10^7 ergs

D

10^9 ergs

Question 166 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

What is the resistance of an electric iron if the rating of electric iron is 220 V and 500 watts?

What will be the rpm of smaller gear if a 180 mm dia meshes with 60 mm dia gear and the bigger gear makes 60 rpm?

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

What is the carbon percentage in medium carbon steel?

What is the side of a square whose area is 625 mm<sup>2</sup>?

Convert 52% into fraction?

Which is equal to electric power?

What is the force with which a body is attracted by the earth towards its centre?

Which is same in series connection of resistors in a circuit?

What is the power if an emf of one volt causes a current flow of 1ampere?

What is the potential energy in a body of mass 10 kg kept on the top of a pole 20 metres height?

How much watt second in 1 watt hour?

What is the formual for induced emf?

What is the decimal fraction of conversion of 18.5%?

What is the area of a right angled triangle having a base 10 cm and height 5 cm?

What is the filament resistance if a 6 volt bulb draws a current of 0.5 Amps?

Which insulator is used in over head lines?

Which property of a metal enables it by which it can be drawn out into wires under tension without rupture?

What is the total surface area of a cylinder having radius 2 metres and height 5 metres?

Find the curved surface area of a cylinder 10 cm dia and 20 cm height?

Which rubber is used as insulator for power cables and control wires?

What is the current? <br> R = 50 Ohms <br> 220 Volts <br> I =______Amps

What is the potential energy, if a body of mass 250 kg is at a height of 30 metre?

What is termed as the quantity of matter contained in a body?

How many millimetres are there in 1 inch?

Which metal contains iron as a major content?

What is the kinetic energy of a bullet of mass 5gm travels with a speed of 500 m/sec?

What is called if a body changes its position with respect to its surroundings?

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?

How many hours will take for a 100 watts bulb to consume 1 kwh energy? <br> W = 1 Kwh <br> P = 100 Watts <br> t = _____Hours

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

What is the other name of low carbon steel?

What is the formula for speed?

What is the block weighs (W) in kg, if volume (V) is 320 cm3 and density 8.9 g/cm<sup>3</sup>?

What is the area of a square whose side is 18 cm?

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

What is the square root of 0.017?

What is the weight force of a car has a mass of 800 kg?(Take g = 9.81m/sec)

What is the flow of electrons in any conductor?

What is the ratio of 4 kg to 800 grams?

Convert decimal 0.000659 to fraction?

How many days a mechanic takes to assemble 64 machines if he assembles 8 machines in 3 days?

Which alloy used in electric lamp as filament?

Which is very good conductor?

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

What is the equivalent unit for 1 horse power in metric system?

What metals contained in brass alloy?

Wha is the mass if the density of a body is 7.6 g/cm<sup>3</sup> and its volume is 25 cm<sup>3</sup>?

Which property of metal has its power of returning to its original shape after the applied force is released?

What is the square root of 529?

What is the name of furnace to obtained cast iron?

What maximum height a stone will reach if it is thrown upwords with a velocity of 20m/sec?(g = 10m/sec<sup>2</sup>)

What is the unit for velocity?

What is the percentage of copper if the casting weight of copper 42.3 kg and tin weight 2.7 kg?

How many watts for 1 horse power in metric system?

What is the total resistance if two resistances of 4 ohms and 6 ohms are connected in parallel?

What is the HCF of 18, 42, 24?

What is the name of the property of an insulation that should brake down or puncture on application of high voltage?

What is the volume of a rectangular tank of 30 m length, 20m width and 10m height?

What is the area of an equilateral triangle of side 450 mm?

What is the voltage? <br> R = 250 Ohms <br> I = 0.44 Amps <br> V = _____Volts

What is the specific gravity of the metal, if the weighs 6.5 kgf in air and 3.5 kgf in water?

What is the formula for total surface area of a cylinder?

Find the total surface area of cube whose side is 25 cm.

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

What is the unit of acceleration of an object?

What is the formula for acceleration?

What is called if a body does not change its position with respect to its surroundings?

What is the current Flow in the bulb? <br> P = 550 watts <br> R = 22 Ohms <br> I = ______Amps

Which statement is correct according to ohm's law?

What are the two classifications of system of units?

What percentage of 80 is 20?

Which is the unit electrical power?

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

Which machine converts mechanical energy into electrical energy?

What is the improper fraction for the given mixed fraction ? 7 x (3/7)

Which is mineral insulator

How much work done in one hour, if a pump can raise 100 liters of water through a height of 200 meters in one minutes?

Divide (20/31)/(15/62)

What is the current?
<br>
R = 50 Ohms
<br>
220 Volts
<br>
I =______Amps

How many hours will take for a 100 watts bulb to consume 1 kwh energy?
<br>
W = 1 Kwh
<br>
P = 100 Watts
<br>
t = _____Hours

What is the voltage?
<br>
R = 250 Ohms
<br>
I = 0.44 Amps
<br>
V = _____Volts

What is the current Flow in the bulb?
<br>
P = 550 watts
<br>
R = 22 Ohms
<br>
I = ______Amps

What is the resistance?
<br>
I = 11.5 Amps
<br>
V = 380 Volts
<br>
R = _______Ohms

What is the power required?
<br>
I = 0.455 Amps
<br>
R = 484 Ohms
<br>
P = _____Watts