# Apprentice Math MCQs & Answers for AITT Exam

These MCQs were asked in previous years’ All India Trade test exams. It is very helpful for Electricians, Plumber, Lineman, Wireman, carpenters, electrical, and other engineering trade students.

## Apprentice Math MCQs & Answers

1. The SI unit of temperature is:-

a) Celsius

b) Fahrenheit

c) Kelvin

d) Rankine

1. Convert 300 Celsius to Fahrenheit.

a) sin A

b) 860 F

c) 1080F

d) 1720F

Ans. b

1. Convert 3/8 to Decimal Fraction

a) 0.375

b) 0.357

c) 0.537

d) 0.337

Ans. a

1. Cartridge brass is used in _.

b) brake pedal bracket

c) gearbox

d) clutch housing

1. Nylon, rubber, polythene, etc. come under the category of __.

a) polymer

b) ceramic

c) metal

d) Composite

1. Nichrome is widely used as a resistance wire for electrical equipment. Contains:

b) tin and copper

c) Chromium and copper

d) Nickel and Chromium

1. Galvanized iron is coated by _.

a) tin

c) Zinc

d) copper

1. Which effect of electric current is applied in the working of generator and motor?

a) thermal effect

b) chemical effect

c) magnetic effect

d) physical effects

1. If the property of water starts changing at 40 degree centigrade, then its value on the Fahrenheit scale is :-

a) 110 degrees Fahren height

b) 104 degrees Fahrenheit

c) 120 degrees Fahrenheit

d) 115 degrees Fahrenheit

1. Which of the following helps in reducing friction in the work of machines?

a) use of belt drive

b) decreasing speed of the machine

c) Use of ball and roller bearings

d) increasing speed of the machine

1. Which Newton’s law is also called ‘Law of Inertia’?

a) Newton’s first law of motion

b) Newton’s second law of motion

c) Newton’s third law of motion

d) none of these

1. Liter is a unit of _.

a) area

b) Capacity

c) Density

d) pressure

1. Which furnace is used for the production of cast iron?

a) Open Heart Furnace

b) Cupola

c) Besimer Converter

d) Puddling Furnace

1. Momentum of a body =

a) mass x acceleration

b) mass x velocity

c) acceleration x velocity

d) weight x velocity

1. If the specific gravity of the liquid is 2.5 and the volume is liters, then what is the weight of the liquid?

a) 3.5 kg

b) 2.5 kg

c) 2 kg

d) 1.5 kg

Ans. b

1. A person bought a book for Rs.90. For how much should he sell it to make a profit of 20%?

a) Rs 108

b) Rs 98

c) Rs 96

d) Rs 117

Ans. a

1. SI unit of length is:-

a) millimeter

b) centimeter

c) decimeter

d) meter

1. If the cost of 15 iron pieces is Rs. 234, then the cost of 35 pieces of iron will be :-

a) Rs 530

b) Rs 546

c) Rs 556

d) Rs 523

Ans. b

1. Which of the following is the purest form of iron?

a) Wrought iron

b) Cast iron

c) Pig iron

d) Steel

Ans. a

1. Which of the following is not a physical property of a metal?

a) color

c) tensile strength

d) conductivity

1. If the length of one side of a square is 15 cm, then its total area will be _.

a) 225 cm2

b) 100 cm2

c) 125 cm2

d) 60 cm2

Ans. a

1. A machine does 100 joules of work in 20 seconds. What will be its power?

a) 5 watts

b) 2000 watts

c) 120 watts

d) 80 watts

1. S.I. of electric current. The unit is _.

a) ampere

b) volt

c) Ohm

d) Watt

1. Which of the following is not an example of kinetic energy?

a) moving train

b) running water

c) blowing wind

d) Clock-winded spring

1. Which statement about non-ferrous metals is not correct?

a) it does not contain iron

b) its melting point is comparatively low

c) it is magnetic

d) It is more resistant to rusting

1. Electricity flows through _.

a) driver

b) coupler

d) non-metal

1. Which of the following is used to find the direction of the magnetic field around the conductor?

a) cork screw rule

b) Lenz’s law

c) Ampere’s law

d) left hand thumb rule

1. A 26 m long steel wire is cut into 104 parts, then the length of each part will be __ cm.

a) 15

b) 25

c) 35

d) 45

Ans. b

1. _ bones are found in human skull.

a) 8

b) 30

c) 14

d) 44

Ans. a

1. Bronze is an alloy of _.

a) Copper and Zinc

c) Copper and Tin

1. Pipe can also be called _.

a) hollow cylinder

b) cylinder

c) hollow sphere

d) sphere

1. Which of the following metals has the highest density?

b) Chromium

c) Copper

d) Magnesium

Ans. a

1. One atmospheric pressure = _

a) 17.4 psi

b) 14.7 psi

c) 16.7 psi

d) 17.6 psi

Ans. b

1. The type of steel used for the manufacture of magnets is _.

b) Cobalt steel

c) High speed steel

d) Nickel steel

Ans. b

1. Chains and hooks are made from _.

a) Pig iron

b) Cast iron

c) Wrought iron

d) Steel

Ans. c

1. The sides in this triangle are not equal. The angles between the sides are also not equal.

a) Equilateral triangle

b) Equilateral triangle

c) Rhombus Triangle

d) Right angled triangle

1. Which instrument is used to measure the temperature above 3000C?

a) Mercury Thermometer

b) Alcohol thermometer

c) Gas thermometer

d) Pyrometer

Ans. d

1. Galvanized sheet is coated with __.

a) tin

c) zinc

d) copper

1. Which metal is the most commonly used conductor in electrical wiring?

a) Zinc

b) tin

c) copper

d) Iron

1. Normal bearing bushes are made of _.

a) brass

b) white metal

c) copper

d) gun metal

1. A metal spoon that gets heated when used to stir hot soup is an example of transfer of heat by _.

a) heat conduction

b) convection

d) induction

1. Carbon steel is tempered at _.

a) 2000C to 3000C

b) 1000C to 1500C

c) 5500C to 6000C

d) 4000C to 5000C

Ans. a

1. The SI unit of magnetic induction is _.

a) Tesla

b) ampere

c) Om

d) Weber

1. The fundamental unit for length in the metric system is :-

a) cm

b) m

c) inc

d) yd

Ans. b

1. The SI unit of force is :-

a) Newton

b) joule

c) calories

d) none of these

1. ​​The property of metal due to which it can be wrapped in shit :-

a) Flexibility

b) malleability

c) hardness

d) elasticity

1. Newton’s first law of motion is called _.

a) Law of torque

b) law of inertia

c) law of energy

d) law of momentum

1. Which of the following is a non-metal?

a) Nitrogen

c) mercury

d) sodium

down – a

1. Which of the following is the fastest process of heat transfer?

a) conductance

b) convection

d) none of these

1. The point through which the entire body weight acts is :-

a) point of inertia

b) center of gravity

c) nucleus

d) central point

1. The amount of energy required to convert a liquid into a gas and vice versa without any change in temperature is called _.

a) latent heat of solution

b) latent heat of vaporization

c) heat capacity

d) specific heat capacity

1. The quantity of matter contained in an object is called _.

b) mass

c) Modulus

d) matter

1. The density of water is highest at _.

a) zero cigars C

b) 4 degrees c

c) zero degree F

d) 32 degrees F

1. In order to harden a piece of steel, it is heated to a suitable temperature and the stage of being held at that temperature for some time is called __.

a) holding

b) binding

c) soaking

d) fixing

1. Energy due to motion is called _.

a) kinetic energy

b) potential energy

c) frictional energy

d) kinetic energy

1. Which of the following is an example of conversion of chemical energy into electrical energy?

a) Solar Cell

b) electric motor

c) battery

d) loud speaker

1. Which metal is used to coat steel and is called galvanizing?

a) aluminum

b) zinc

c) Copper

d) tin

1. Which simple machine can hold two components together?

a) Pulley

b) screw

c) wheel and axle

d) wedge

1. Which non-ferrous metal is liquid at room temperature?

a) mercury

b) platinum

c) brass

d) bronze

1. Which of the following is not a good conductor of electricity?

a) glass

b) mercury

c) aluminum

d) steel

down – a

1. If the mass of an object is 1000 kg on earth, what will be its mass on the moon?

a) 1000 kg

b) 100 kg

c) 10 kg

d) 10000 kg

1. One pound = __

a) 456.3 grams

b) 435.6 grams

c) 453.6 grams

d) 465.3 grams

1. The state of an object will not change if _ work is done on it.

a) zero

b) positive

c) negative

d) infinite

1. Which of the following substances has the highest specific heat?

a) water

b) turpentine oil

c) common salt

d) aluminum

1. Which material is usually used in conventional thermometer?

a) silver

b) halogens

c) sodium

d) mercury

1. “CGS” in the system of units means _.

a) centimeter gram second

b) centimeter group second

c) center gram second

1. Newton’s second law of motion is called _.

a) Law of torque

b) law of inertia

c) law of energy

d) law of momentum

1. Thermal conductivity in solids is _.

a) high

b) low

c) zero

d) intermediate between liquids and gases

1. If the side of an equilateral triangle is 12 cm. Then the perimeter of the triangle is _.

a) 36 cm

b) 6 cm

c) 24 cm

d) 48 cm

Ans. a

1. Which of the following has maximum density?

a) gold

b) ice

c) carbon

d) water

1. Speed ​​is equal to _.

a) distance / time

b) time/distance

c) distance x time

d) distance + time

1. The SI unit of electrical resistance is _.

a) Ohm

b) ampere

c) Tesla

d) volts

1. _ is the main component of stainless steel, which makes it corrosion free.

a) Chromium

b) Copper

c) Titanium

d) carbon

1. In terms of electric power, 1 unit is equal to _.

a) 1 kWh

b) 1 Wh

c) 100 Wh

d) 10 kWh

Ans. a

1. Percentage is a type of fraction whose denominator is always _.

a) 100

b) 50

c) 75

d) 150

Ans. a

1. The melting point of zinc is __.

a) 4200C

b) 2300C

c) 660C

d) 10830C

Ans. a

1. If the diameter of a circle is 28 mm, then the area of ​​the circle will be _.

a) 616 mm2

b) 526 mm2

c) 324 mm2

d) 144 mm2

Ans. a

1. In electric bulbs, a gas is filled to keep the filament thermally isolated.

a) Organ

b) Xenon

c) ammonia

d) Oxygen

1. The temperature of 95 degree Fahrenheit is equal to _.

a) 350C

b) 240C

c) 340C

d) 360C

Ans. a

1. The symbol used for SI standard ‘ampere’ is _.

a) A

b) Amp

c) Amps

d) Am

Ans. a

1. Which of the following produces the flow required to create pressure in a hydraulic system?

a) Pump

b) valve

c) Filter

d) collectors

1. Which of the following works on the reflection of ultrasonic waves?

a) sonar

b) optical fiber

c) Photocell

d) airplane

1. The measurement of temperature is not done on _ scale.

a) Richter

b) Kelvin

c) Celsius

d) Reaumur

Ans. a

1. The temperature of 250C is equal to _.

a) 770F

b) 850F

c) 250F

d) 550F

Ans. a

1. The temperature of 350C is equal to _.

a) 950F

b) 1020F

c) 1040F

d) 1340F

Ans. a

1. The thermal conductivity of __ is highest.

a) silver

b) copper

c) aluminum

d) brass

1. Which of the following is relatively brittle?

a) cast iron

b) copper

c) gold

d) Erbium

1. 650 C temperature is equal to _.

a) 1490F

b) 1300F

c) 970F

d) 650F

Ans. a

1. 5% of 5% of Rs.100 is:-

a) Rs.0.25

b) Rs.0.50

c) Rs 10

d) Rs.25

1. 0.036 will be written as _ in the different form.

a) 9/250

b) 4/100

c) 7/250

d) 5/1250

Ans. a

1. Cast iron is __.

a) brittle

b) malleable

c) tensile

d) elastic

1. The chemical symbol of silver is :-

a) Ag

b) Au

c) Cu

d) Fe

Ans. a

1. Which of the following is a glass making technique?

a) Powder Pressing

b) Hydro Plastic Forming

c) slip casting

d) Fiber Forming

1. When a body falls freely under gravity, the work done by gravity is:-

a) positive

b) negative

c) zero

d) infinite

1. The temperature of 104 degree Fahrenheit is equal to _.

a) 400C

b) 420C

c) 340C

d) 360C

Ans. a

1. We are able to write on a sheet of paper because of __.

a) friction

b) momentum

c) gravity

d) center of gravity

1. Friction acts in the _ direction of the direction of motion of the object.

a) similar

b) opposite

c) vertical

d) down and

1. Which of the following metals is liquid at room temperature?

a) turquoise

b) mercury

c) Lithium

d) Osmium

1. Which of these metals is found in pure form in nature?

a) iron

b) aluminum

c) gold

d) Lithium

1. The melting point of magnesium is approximately _.

a) 6500C

b) 11800C

c) 9730C

d) 2300C

Ans. a

1. Heat is a type of __.

a) passion

b) energy

d) wave

1. The mineral from which aluminum is extracted is _.

a) Hematite

b) magnetite

c) bauxite

1. Which of the following pairs have the same ratio?

a) 87/57, 116/76

b) 18/2, 36/3

c) 45/90, 90/135

d) 96/108, 121/144

Ans. a

1. The temperature of 95 degree Fahrenheit is equal to _.

a) 350C

b) 240C

c) 340C

d) 360C

Ans. a

1. The measurement of surface temperature is used for :-

a) strain gauge

b) RTD

c) Thermocouple

d) Diaphragm

Ans. c

1. Light year is the unit of _.

a) distance

b) time

d) force

1. 1.4 in its simplest form can be written as __.

a) 7/5

b) 7/10

c) 14/20

d) 14/20

Ans. a

1. By converting 72% into a fraction, the answer will be:-

a) 13/27

b) 19/25

c) 19/26

d) 18/25

Ans. a

1. By converting 142.5% to decimal, the answer will be:-

a) 1.425

b) 0.1425

c) 142.5

d) 14.25

Ans. a

1. The weight of an object on the moon is W. Its weight on earth will be _.

a) 6W

b) w/6

c) W/10

d) Zero

Ans. a

1. The resistance developed by the surface of any material is known as :-

a) strength

b) hardness

c) Toughness

d) creep

1. The property by which a body returns to its original shape after removing the force is called __.

a) Plasticity

b) Elasticity

c) Ductility

d) Malleability

Ans. b

1. Tungsten is a __.

a) driver

b) Semi-conductor

d) superconducting

1. _ is used as heating element in electric heater.

a) nichrome

b) Phosphorous

c) nickel

d) tungsten

1. The carbon content in high carbon steel is approximately _.

a) 0.5-1.5%

b) 0.25-0.5%

c) 0.15-0.25%

d) 2-4%

Ans. a

1. Phosphor bronze is an alloy of copper and __.

a) tin

b) aluminum

c) Phosphorus

d) zinc

1. Ispat (steel) is mainly an alloy of _.

a) iron and carbon

b) sulfur and zinc

c) zinc and tin

d) Phosphorous and Tin

1. The simplest fractional form of 0.4 is _.

a) 2/5

b) 4/10

c) 3/2

d) 30/50

Ans. a

1. A moving car has _.

a) sound energy

b) mechanical energy

c) thermal energy

d) chemical energy

1. 30% of 180 is equal to _.

a) 54

b) 64

c) 30

d) 60

Ans. a

1. The carbon content in cast iron is approximately _.

a) 2-4%

b) 0.5-1.5%

c) 0-2%

d) 0.25-0.50%

Ans. a

1. 1 inch, __ cm is equal to

a) 2.54

b) 2.4

c) 15

d) 3

Ans. a

1. One quintal is equal to _ kg.

a) 100

b) 10

c) 1000

d) 50

Ans. a

1. What are the __ types of electric current?

a) 2

b) 1

c) 3

d) 4

Ans. a

1. The main material used in shotgun bullets is __.

a) glass

b) copper

c) Zinc

d) iron

1. The interior angles of a right angled triangle are :-

a) 300, 600, 900

b) 100, 600, 600

c) 900, 600, 900

d) 600, 600, 900

Ans. a

1. The efficiency of an ideal machine is

A) 100%

b) 80%

c) 75%

d) 50%

Ans. a

1. A polygon of seven sides is called _.

a) Heptagon

b) hexagon

c) octagon

d) decagon

1. What is the specific gravity of petrol?

a) 0.7

b) 8.8

c) 13.6

d) 2.7

Ans. a

1. The mass of an object is 2.5 kg. The weight of that object will be approximately _.

a) 2.5 N

b) 25 N

c) 15 N

d) 1.5 N

Ans. b

1. What is the formula for determining the mass of an object?

a) Volume x Density

b) mass x density

c) weight x density

d) none of these

1. The simplest fractional form of 0.75 is _.

a) 3/5

b)

c) 2/3

d) 3/2

Ans. b

1. The value of 3+3/3 is _.

a) 4

b) 2

c) 3

d) 1

Ans. a

1. 1 gallon is equal to _ liters.

a) 4.544

b) 28.35

c) 1.016

d) 2.0205

Ans. a

1. The value of (1/4) is equal to _.

a) 25%

b) 20%

c) 40%

d) 50%

Ans. a

1. Aluminum is not used in _.

a) jewelery

b) press die

d) drill

1. Which of the following has the lowest relative density?

a) steel

b) mercury

c) platinum

1. __ is used to measure the temperature of the human body.

a) Thermometer

b) Calorie Meter

c) pyrometer

d) hydrometer

1. _ is used in making battery caps.

a) Bitumen

b) Asbestos

c) Wire enamel

d) Wood

Ans. a

1. The minimum length of the pipe electrode used in earthing should be _.

a) 2.5 m

b) 3.5 m

c) 1.5 m

d) 4.5 m

Ans. a

1. A nibble is _ of a byte.

a) half

b) one-fourth

c) three-fourth

d) one third

1. Density of liquid water as compared to ice is _.

a) more

b) less

c) equal

d) less than or equal to

1. The sum of the measures of all the angles of a square is __.

a) 3600

b) 1800

c) 900

d) 2400

Ans. a

1. The force arising due to the pull of gravity is called :-

a) weight

b) mass

c) Density

d) height

1. The SI unit of area is :-

a) square meters

b) square inches

c) square yards

d) square feet

Ans. a

1. The SI unit of force is :-

a) Celsius

b) Kelvin

c) Fahrenheit

d) Newton

1. The melting point of copper is _.

a) 10830C

b) 11320C

c) 4200C

d) 6600C

Ans. a

1. The relative density of wood is _ than water.

a) less than

b) more than

c) equal to

d) none of these

1. The sum of two angles of a triangle is 1350, then the measure of the third angle of the triangle should be _.

a) 450

b) 550

c) 350

d) 400

Ans. a

1. Convert -400F to 0C.

a) -400C

b) -98.40C

c) -1000C

d) -4000C

Ans. a

1. The standard SI unit of mass is :-

a) pound

b) Village

c) slugs

d) kilograms

1. A mill is equal to _ yards.

a) 1760

b) 1860

c) 2000

d) 2200

Ans. a

1. Which of the following number is a perfect square?

a) 141

b) 196

c) 124

d) 222

Ans. b

1. The square of 18 is:-

a) 324

b) 369

c) 144

d) 342

Ans. a

1. The square root of 196 is :-

a) 13

b) 14

c) 16

d) 12

Ans. b

1. _ is a white metal used in scientific instruments and jewelry.

a) German silver

b) nichrome

c) Bronze

d) brass

1. The ratio of the density of a solid to that of water at _ (temperature) is called relative density.

a) 40C

b) 00C

c) 1000C

d) 320C

Ans. a

1. If the displacement of an object is zero, then the work done will be __.

a) zero

b) incomplete

c) unit

d) none of these

1. The alloy is :-

a) pure metal

b) a mixture of two metals

c) a mixture of metals in a given ratio

d) a mixture of metals in certain proportions

1. What type of energy is contained in water stored in a high tank?

a) situational

b) driven

c) Electricity

d) Gravity

1. 10 decigrams is equal to _ grams.

a) 1

b) 10

c) 100

d) 1000

Ans. a

1. The melting point of wrought iron is _.

a) 15380C

b) 13500C

c) 12000C

d) 11840C

Ans. a

1. Hydrometer works on the basis of which of the following principle?

a) swimming

b) action reaction

c) Archimedes

d) newton

1. Work is a _ quantity.

a) scalar

b) vector

c) zero

d) none of these

1. If the length of each side of an equilateral triangle is 10 cm, then find its perimeter.

a) 30 cm

b) 43.30 cm

c) 100 cm

d) 10 cm

Ans. a

1. The filament of an electric bulb is made of _.

a) nichrome

b) tungsten

c) graphite

d) steel

1. Select the same fraction as 18/72.

a)

b) 1/5

c) 2/3

d) 3/7

Ans. a

1. What is 15% of Rs.34?

a) 3.40

b) 3.75

c) 4.50

d) 5.10

Ans. d

1. The layer is applied in the lentil loin:-

a) silver

c) of copper

d) of zinc

1. The inherent heat of ice is __ calories.

a) 80

b) 60

c) 100

d) 50

Ans. a

1. Electricity is a type of _.

a) energy

b) heat

c) magnet

d) chemicals

1. A mill is equal to __ yards.

a) 1760

b) 22

c) 1000

d) 10000

Ans. a

1. The ratio of 10 feet to 30 inches is _.

a) 4:1

b) 3:1

c) 2:1

d) 1:1

Ans. a

1. Represent in decimal form.

a) 0.25

b) 0.025

c) 2.50

d) 25.0

Ans. a

1. Select the same fraction as 19/76.

a)

b) 1/5

c) 2/3

d) 3/7

Ans. a

1. The tensile strength of which of the following non-ferrous metals can be increased by hammering?

a) copper

c) zinc

d) none of these

1. The weight and mass of an object is _.

a) unequal

b) same

c) always the same

d) none of these

1. “Water flowing in a river” is an example of which type of energy?

a) kinetic

b) situational

c) warm

d) none of these

1. Vector quantities are those which contain _.

a) Quantity only

b) Direction only

c) both magnitude and direction

d) only two directions

1. When the percentage of carbon increases, the brittleness of the substance is _.

a) rising

b) decreasing

c) remain unaffected

d) becomes half

1. A bulb of 50 ohm resistance draws 2A current. The voltage required for its operation will be __.

a) 100 V

b) 2.5 V

c) 25 V

d) 52 V

Ans. a

1. Find the number whose 25% value is 300.

a) 1200

b) 2500

c) 1800

d) 600

Ans. a

1. Which one of the following forces is useful for pulling wire from metals?

a) tensile

b) conformation

c) compressed

d) axial