ITI Workshop Calculation and Science Free Mock Test : Semster 2

Created on August 07, 2022

Workshop Calculation & Science Sem 2

ITI Worshop Calulation & Science - Semester 2

Worshop Calulation & Science - Semester 2
Free Mock Test

Module 1 - Heat and Temperature and Pressure
Module 2 - Basic Electricity
Module 3 - Trigonometry

1 / 64

Category: WSC – Semester 2

What is term called for 3 x linear expansion?

A) Co-efficient of friction

B) Co-efficient of linear expansion

C) Co-efficient of superficial expansion

D) Co-efficient of cubical expansion

2 / 64

Category: WSC – Semester 2

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

3 / 64

Category: WSC – Semester 2

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

4 / 64

Category: WSC – Semester 2

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

A) Current

B) Voltage

C) Resistance

D) Power

5 / 64

Category: WSC – Semester 2

Which is the unit electrical power?

A) Volts

B) Ohms

C) Watts

D) Ampere

6 / 64

Category: WSC – Semester 2

How much watt second in 1 watt hour?

A) 1000 watt sec

B) 2000 watt sec

C) 3600 watt sec

D) 4000 watt sec

7 / 64

Category: WSC – Semester 2

What is called for the amount of heat
required to raise the temperature of unit mass of a
substance through 1°C?

A) Sensible heat

B) Latent heat

C) Specific heat

D) Mixing of heat

8 / 64

Category: WSC – Semester 2

Which kind of heat transmission takes places
by up-ward flow?

A) Conduction

B) Convection

C) Radiation

D) Reflection

9 / 64

Category: WSC – Semester 2

Which one of the following is not a
property of heat insulating material?

A) Low conductivity

B) Resistance to fire

C) Less moisture absorption

D) Ductility

10 / 64

Category: WSC – Semester 2

What is the unit of co-efficient of linear
expansion?

A) Number /°C

B) Number /°C / meter length

C) Number /°C / mm length

D) Number /°C / cm length

11 / 64

Category: WSC – Semester 2

What is called if the length of the solid
expands when heated?

A) Linear expansion

B) Superficial expansion

C) Cubical expansion

D) Area expansion

12 / 64

Category: WSC – Semester 2

Which one is heat insulator?

A) Thermocole

B) Copper

C) Brass

D) Aluminium

13 / 64

Category: WSC – Semester 2

What is 1 + cot²θ?

A) sec²q

B) cosec²q

C) cot²q

D) tan²q

14 / 64

Category: WSC – Semester 2

Which is equal to electric power?

A) R² I watts

B) I² R watts

C) R² / I watts

D) I² / R watts

15 / 64

Category: WSC – Semester 2

Which insulating material is most widely
used in refrigerators?

A) Thermocole

B) Polyurethane

C) Glass wool

D) Cork sheet

16 / 64

Category: WSC – Semester 2

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

17 / 64

Category: WSC – Semester 2

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

18 / 64

Category: WSC – Semester 2

What is the melting point of aluminium?

A) 660°C

B) 680°C

C) 670°C

D) 620°C

19 / 64

Category: WSC – Semester 2

Which one has the highest thermal
conductivity?

A) Solid ice

B) Melting ice

C) Water

D) Steam

20 / 64

Category: WSC – Semester 2

What is known for the temperature at
which any solid melts into liquid?

A) Boiling point

B) Melting point

C) Latent heat of fusion

D) Latent heat of vaporisation

21 / 64

Category: WSC – Semester 2

What is the co-efficient of linear expansion
of a rod if it is found to be 100 m long at 20°C and
100.14 m long at 100°C?

A) 1.75 x 10ˉ⁶

B) 1.75 x 10ˉ⁷

C) 1.75 x 10ˉ⁴

D) 1.75 x 10ˉ⁵

22 / 64

Category: WSC – Semester 2

Which is mineral insulator?

A) Glass

B) Quartz

C) Mica

D) Porcelain

23 / 64

Category: WSC – Semester 2

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

A) Ohmʹs law

B) Lenzʹs law

C) Newtonʹs law

D) Hookeʹs law

24 / 64

Category: WSC – Semester 2

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

25 / 64

Category: WSC – Semester 2

What is the melting point of mercury?

A) -357°C

B) -209°C

C) -7.1°C

D) -38.72°C

26 / 64

Category: WSC – Semester 2

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

27 / 64

Category: WSC – Semester 2

How much heat is absorbed by a copper
ingot weighing 400 Kg is heated from 30°C to 72°C
for the purpose of forging? (sp.heat of copper is
0.09)

A) 1521 Kcal

B) 1251 Kcal

C) 1512 Kcal

D) 1215 Kcal

28 / 64

Category: WSC – Semester 2

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

A) 12 Ω

B) 10 Ω

C) 3 Ω

D) 1.2 Ω

29 / 64

Category: WSC – Semester 2

Which machine converts mechanical energy
into electrical energy?

A) Battery

B) Generator

C) Heater

D) Iron box

30 / 64

Category: WSC – Semester 2

Which is the unit of current?

A) Ampere

B) Volt

C) Ohm

D) Watt

31 / 64

Category: WSC – Semester 2

Which is equal to sinθ?

A) Opposite side / Hypotenuse

B) Hypotenuse / Opposite side

C) Adjacent side / Hypotenuse

D) Hypotenuse / Adjacent side

32 / 64

Category: WSC – Semester 2

What is the value of sin 30° if cos 30° = √3/2 ?

A) √3/2

B) 1/2

C) 1/√3

D) 1/√2

33 / 64

Category: WSC – Semester 2

Which statement is correct according to
ohmʹs law?

A) I µ 1/V

B) I µ R

C) I µ V/R

D) I µ R/V

34 / 64

Category: WSC – Semester 2

Which is the unit of resistance?

A) Ampere

B) Volt

C) Ohm

D) Watt

35 / 64

Category: WSC – Semester 2

What is the specific heat of the material if
we require 510 calories to raise the temperature of
170 gm of material from 50°C to 80°C?

A) 0.1

B) 0.01

C) 1.1

D) 1.11

36 / 64

Category: WSC – Semester 2

What is called for the materials that
restricts heat flow by radiation, conduction and
convection?

A) Conductors

B) Insulators

C) Ferrous

D) Non-ferrous

37 / 64

Category: WSC – Semester 2

Calculate the amount of heat required to
raise the temperature of 85.5 gm of sand from 20°C
to 35°C specific heat of sand = 0.1.

A) 128.25 Joules

B) 125.28 Joules

C) 128.26 Joules

D) 126.28 Joules

38 / 64

Category: WSC – Semester 2

Which one is the radiation method of heat
transmission?

A) An iron rod is heated with one of its end and heat transmitted to other end

B) Cold water goes to the bottom from top while on heating the water

C) On heating gases, heat transmitted to surroundings

D) The heat from sun travels through the space

39 / 64

Category: WSC – Semester 2

What is term used for 2 x linear expansion?

A) Co-efficient of friction

B) Co-efficient of linear expansion

C) Co-efficient of superficial expansion

D) Co-efficient of cubical expansion

40 / 64

Category: WSC – Semester 2

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

41 / 64

Category: WSC – Semester 2

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

A) Current

B) Voltage

C) Resistance

D) EMF

42 / 64

Category: WSC – Semester 2

What is the boiling point of aluminium?

A) 1897°C

B) 2519°C

C) 2469°C

D) 660°C

43 / 64

Category: WSC – Semester 2

: What is the change in length per unit original
length per degree rise in temperature is called?

A) Co-efficient of friction

B) Co-efficient of linear expansion

C) Co-efficient of superficial expansion

D) Co-efficient of cubical expansion

44 / 64

Category: WSC – Semester 2

What is the value of tanθ if sinθ = 4/5?

A) 4/5

B) 5/3

C) 3/4

D) 4/3

45 / 64

Category: WSC – Semester 2

How many degrees is equal to one radian?

A) π°/360

B) 360°/π

C) π°/180

D) 180°/π

46 / 64

Category: WSC – Semester 2

What is the flow of electrons in any
conductor?

A) Voltage

B) Current

C) Resistance

D) Power

47 / 64

Category: WSC – Semester 2

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

48 / 64

Category: WSC – Semester 2

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

49 / 64

Category: WSC – Semester 2

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

50 / 64

Category: WSC – Semester 2

How much quantity of heat is required to
raise the temperature of 300 grams of copper(sp.heat 0.092 cal/gram) from 25°C to 75°C in Kcal?

A) 138 Kcal

B) 1.38 Kcal

C) 207 Kcal

D) 2.07 Kcal

51 / 64

Category: WSC – Semester 2

What is the value of θ if sinθ = √3/2 ?

A) 30°

B) 45°

C) 60°

D) 90°

52 / 64

Category: WSC – Semester 2

What is equal to tanθ?

A) Opposite side / Hypotenuse

B) Adjacent side / Hypotenuse

C) Opposite side / Adjacent side

D) Adjacent side / Opposite side

53 / 64

Category: WSC – Semester 2

Which is very good conductor?

A) Copper

B) Cast iron

C) Wrought iron

D) Steel

54 / 64

Category: WSC – Semester 2

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

55 / 64

Category: WSC – Semester 2

What is the total resistance if three
resistances of 4 ohms, 6 ohms and 8 ohms
respectively are connected in parallel?

A) 24

B) 13

C) 24/13

D) 13/24

56 / 64

Category: WSC – Semester 2

Which one is a poor heat insulator?

A) Glass

B) Cork

C) Rubber

D) Saw dust

57 / 64

Category: WSC – Semester 2

What is the boiling point of water?

A) 0°C

B) 32°C

C) 100°C

D) 212°C

58 / 64

Category: WSC – Semester 2

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

A) 2.4/10

B) 24/10

C) 10/24

D) 10/2.4

59 / 64

Category: WSC – Semester 2

How much quantity of heat is required?
m = 120 litres
t1 = 20°C
t2 = 85°C
S = 4.2
Q = _____ KJ

A) 32750 KJ

B) 32760 KJ

C) 32770 KJ

D) 32780 KJ

60 / 64

Category: WSC – Semester 2

What is equal to cosθ?

A) Hypotenuse / Adjacent side

B) Adjacent side / Hypotenuse

C) Opposite side / Hypotenuse

D) Hypotenuse / Opposite side

61 / 64

Category: WSC – Semester 2

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

62 / 64

Category: WSC – Semester 2

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

63 / 64

Category: WSC – Semester 2

What is the boiling point of mercury?

A) 357°C

B) 280°C

C) 759°C

D) 767°C

64 / 64

Category: WSC – Semester 2

What is the value of tan 45° if sin 45° = 1/√2 ?

A) 1/√2

B) √3/2

C) 1

D) 1/√3

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ITI Workshop Calculation and Science Free Mock Test : Semster 2

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