Model Question Paper | APPLIED SCIENCE | Diploma Karnatak



Model Question Paper:                                                                                      

 


 

 

I Semester Diploma Examination

APPLIED SCIENCE

(Common for All Engineering Programmes) Time: 3 Hours][Max Marks: 100

Note: i) Answer any 10 questions from section A, each carry 02marks.

ii)  Answer any 10 questions from section B, each carry 05 marks.

iii)  Answer any 05 questions from section C, each carry 06 marks.


Code:15SC03S


 

 

SECTION – A

 

1.      Define Unit.

2.      Differentiate scalars and vectors.

3.      Define Resultant of forces.

4.      Define moment of couple.

5.      Define plasticity.

6.      Define compressibility.

7.      Define viscosity of liquid.

8.      Define specific heat of substance.

9.      Define thermodynamics.

10.  Define time period.

11.  Define beats.

12.  Define Electro-magnetic waves.

13.  Define Nano-Technology.

14.  Define electrolyte.

15.  Define composite materials.

 

 

PART-B

 

1.      Draw a neat diagram of Vernier calipers and label its parts.

2.      Write the condition for equilibrium of coplanar parallel forces with an example.

3.      Explain stress-strain graph.

4.      Define K.E of liquid in motion. State Bernoulli’s theorem.

5.      Define capillarity? Write any three application of surface tension.

6.      State 1st law of thermodynamics. Explain isothermal & adiabatic process.

7.      State the three gas laws.( Boyle’s law, Charle’s law & Gay-Lussac law)


8.      Explain mechanical &non- mechanical waves with examples.

9.      Distinguish between longitudinal & transverse waves.

10.   Write any three advantages and two disadvantages of F.M.

11.   Write the principle of laser. Lists its properties.

12.   Explain the mechanism of electrolysis of HCL.

13.   Write the basic concepts of batteries. Mention any three applications of batteries.

14.   Distinguish between minerals and ore. Write any three applications of pH.

15.   Define composite materials. Write the advantages of composite materials.

 

PART-C

 

1.                     Derive an expression for magnitude and direction of resultant of two forces acting at a Point.

2.                     Describe an experiment to determine coefficient of viscosity of water by Poiseuille’s method.

3.                     1.25cc volume of a gas at 150C &755mm of mercury pressure. Calculate volume at NTP.

4.                     Derive an expression for fundamental frequency of transverse vibrations of stretched string.

5.                     Describe an experiment to find the unknown frequency of the given tuning fork using sonometer    by comparison method.

6.                     Calculate the velocity of sound in air at 250C & 75cm of mercury pressure, if the density of air at 00C & 76cm of mercury pressure is 1.29kgm-3. (given γ=1.41 for air).

7.                     Write the basic elements of communication system with block diagram.

8.                     Explain any two methods of polymerization.

 

Model Question Bank:                                                                                      

 


 

UNIT – I : MECHANICS

 

PART – A (02MARKS QUESTIONS)

 

1.      Define unit of a physical quantity.

2.      Define fundamental and derived units.

3.      List supplementary units in S.I systems.

4.      Define S.I units give two eg of S.I, basic units.

5.      Define least count of measuring instrument.

6.      Write the principle of Vernier calipers and screw gauge.

7.      Define least count of Vernier calipers?

8.      Define pitch of a screw.

9.      Define ZE and ZC in screw gauge.

10.   Define scalar quantity & give its examples.

11.   Define vector quantity & give its examples.

12.   Write the relation between resultant and equilibrant.

13.   State law of parallelogram of vectors.

14.   State Converse law of triangle of forces.

15.   State Lami’s theorem.

16.   Define moment of force.

17.   Write the two rectangular component of a vector.

18.   Write how moment of force is measured.

19.     Discus why the handles of the doors and windows are fixed at the end.

20.   Define couple.

21.   Define is moment of couple.

22.     Write how you measure moment of couple.

23.   Define equilibrium.

24.   Write the conditions of equilibrium when number of co-planar parallel forces acting on a body.

25.   Define like & unlike parallel forces.

 

PART – B (05 MARKS QUESTIONS)

 

1.      Mention seven basic units and two supplementary units of SI system.

2.      Draw a neat diagram of Vernier calipers and label its parts.

3.      Draw a neat diagram of Screw Gauge and label its parts.

4.      Explain parallel forces with their types.


5.      List two types of moment of force. Write any three applications of couple.

6.      Write the advantages of S.I system.

7.      Mention the difference between scalars and vectors.

8.      State Converse law of triangle of forces; write the line diagram & equation of Converse law of triangle of forces.

9.      State Lami’s theorem, write the line diagram & equation of lami’s theorem

10.  Define moment of force, write the equation to measure moment of force & give its examples.

 

PART – C (06 MARKS QUESTIONS)

 

1.                     Derive an expression for magnitude and direction of resultant of two forces acting at a point.

2.                     Derive an expression for horizontal and vertical components of force acting at an angle q with horizontal.

3.                     Write the conditions for equilibrium of coplanar parallel forces acting on a rigid body with equations & diagram.

4.                     Describe an experiment to verify law of parallelogram of forces.

5.                     Describe an experiment to verify Converse law of triangle of forces.

6.                     Describe an experiment to verify Lami’s theorem.

7.                     Describe an experiment to verify the conditions of equilibrium of co-planar parallel forces using moment bar.

8.                     A main scale is divided into 0.5 mm the length of vernier attached to it is 12mm and is divided into 25equal parts. Calculate the value of 1vsd and L.C of vernier.

9.                     In Vernier calipers, main scale is divided into 1mm;9division of main scale is divided into 10 equal parts on Vernier scale. In a setting zero of Vernier scale lies between 4.8cm and 4.9cm, and 7th division of vernier coincide with the main scale division. What is the total reading?

10.          A screw gauge has a pitch of 0.5mm and 50 divisions on head scale. The reading when jaws touch is +5div. When gripping a wire the reading is 3 turns and 17 div. What is the diameter of the wire?

11.           The resultant of two equal forces acting at a right angle to each other is 1414N.Findthe magnitude of each force.

12.           Two forces of 5kg wt. and 10kg wt. acts at right angles to one another. Find the magnitude and direction of the resultant forces.

13.           Two unlike parallel forces equal to 20N and 12N acts at two points A and B on a rigid body. Find the magnitude and direction of their resultant and the point where it acts if AB=0.8m

14.          Two like parallel forces equal to 80N and 100N act on a body at two points A and B. If AB=0.6m,find the magnitude and the point where there resultant acts.

15.           Three forces P, Q and 100 N acting on a body in equilibrium. If the angles opposite to P and Q are 1200 and 1500 respectively. Find the magnitude of P and Q.



UNIT II: PROPERTIES SOLIDS & LIQUIDS

 

PART – A (02MARKS QUESTIONS)

 

1.      Define plasticity.

2.      Define elasticity.

3.      Define deforming force.

4.      Define restoring force.

5.      Define stress.

6.      Write the types of stress.

7.      Define strain.

8.      Write the type of strain.

9.      Define elastic limit.

10.   State Hooke’s law.

11.   Define Young’s modulus.

12.   Define Bulk modulus.

13.   Define Rigidity modulus.

14.   Define compressibility? Write its S.I unit.

15.   Write S.I units of stress and strain.

16.   Define pressure of liquid.

17.   Write equation for the pressure at a point inside the liquid at rest.

18.   State Bernoulli’s theorem.

19.   Define cohesive force.

20.   Define Adhesive force.

21.   Write reason why glue stick to paper?

22.   Define angle of a contact.

23.   Name the type of angle of a contact formed for water and glass, water and mercury.

24.   Define surface tension.

25.   List the factors affecting surface tension.

26.   Define capillarity.

27.   Write any four applications of capillarity.

28.   List the applications of surface Tension.

29.   Write the equation used to determine surface tension of water by capillary raise method.

30.   Define viscous force.

31.   Give two examples of viscous liquid.

32.   Define co-efficient of viscosity. Write its S.I unit.

33.   List the factors affecting viscosity of liquid.

34.   Write the effect on viscosity of gas if temperature is increased.

35.   Write any four applications of viscosity.

36.   List the types of flow of liquid.


PART – B (05 MARKS QUESTIONS)

 

1.      Explain elasticity with an example.

2.      Define elasticity and list three types of modulei of elasticity.

3.      Define strain.  Write the types of strain.  Give e.g. for each type of strain.

4.      Define stress.  Write the types of stress.  Give e.g. for each type of stress.

5.      Define elastic limit. State Hooke’s law? Write its mathematical form .

6.      Explain stress-strain graph.

7.      Define compressibility and factor of safety. Write the SI unit of stress.

8.      Define thrust and pressure, write their SI units.

9.      Define K.E and P.E of liquid. State the Bernoulli’s theorem.

10.   Define cohesive and adhesive force with an example.

11.   Define pressure energy and angle of contact.

12.   Define two types of flow of liquid with an example.

13.   Define angle of a contact. What type of angle of contact is formed for water and glass, water and mercury? List the factors affecting surface tension.

14.   Define capillarity. Write any four applications of capillarity.

15.   Write the difference between stream line flow and turbulent flow of liquids.

16.   Define viscosity and write the effect of temperature on viscosity of liquid & gas.

17.     Define stress and explain the types of stress.

18.   Define strain and explain the types of strain.

19.   State Hooke’s law? List any three applications of viscosity.

20.   Define surface tension. Mention any three factors affecting surface tension.

 

PART – C (06 MARKS QUESTIONS)

 

1.           Derive an expression for young’s modulus of elasticity.

2.           Derive an expression for pressure at any point inside the liquid at rest.

3.           Derive an expression for co-efficient of viscosity of liquid.

4.           Describe an experiment to determine the surface tension of water by capillary rise method.

5.           Describe an experiment to determine coefficient of viscosity of water by Poiseuille’s method.

6.           A uniform wire of length 0.5m and diameter 0.0006m when stretched by a mass of 5kgextends by 0.0004m. Calculate Young’s modulus of wire.

7.           A wire of length 1m is fixed at one end and a mass of 1kg is hung from free end, the area of cross section of the wire is 2.5 x 10-6 m2 and the Young’s modulus of the material of the wire is 2 x 1011 Nm-2. Calculate stress, strain and extension of the wire.

8.           A spring 60cm long is stretched by 2cm by the application of a load 200g. What will be the length when the load of 500g is applied (given g = 980cm/s2).


9.           A rectangular tank is 3m long,2m wide and 1.5m in height, it contains water to a depth of 1m,the density of water is 1000kg/m3. Calculate the pressure at the bottom of the tank.

10.     Calculate the pressure at the bottom of a swimming pool 10m wide if the water is 3m deep, the density of water is 1000kg/m3.

11.     A square plate of 6cm side moves parallel to another plate with a velocity of 10cm/s, both the plates being immersed in water (η = 0.01poise). If the distance between the plates 0.5mm.Calculate the viscous force.

12.     In a certain experiment on the flow of water through a capillary tube, the following data were obtained. Volume of water coming out per minute = 15cc; pressure head of water = 30cm

Length of tube = 25cm; radius of tube = 0.05cm; calculate coefficient of viscosity of water(g=980cm/s2, density=1gm/cc)

13.     A castor oil of viscosity 98.6NS/ m2      fills the space between two horizontal plates1cm apart. If the lower plate is stationary and upper plate is moving horizontally with a velocity of 3m/s . Find the tangential force per unit area.

 

UNIT-III:     HEAT AND PROPERTIES OF GASES.

PART – A (02MARKS QUESTIONS)

 

1.      Define heat & write SI unit of heat.

2.      Define temperature & write SI unit of temperature.

3.      Define specific heat of substance & write its SI unit.

4.      Define conduction of heat.

5.      Define convection of heat.

6.      Define Radiation of heat.

7.      Define Thermal conductivity.

8.      Define specific heat of a gas at constant volume.

9.      Define specific heat of a gas at constant pressure.

10.   State Boyle’s law.

11.   State Charle’s law.

12.   State Gay-Lussac’s law

13.   Define isothermal process.

14.   Define adiabatic process.

15.   Define thermodynamics.

16.   State zeroth law of thermodynamics.

17.   State Ist law of Thermodynamics.

18.   State IInd law of Thermodynamics

19.   Write Mayer’s equation.

 

PART – B (05 MARKS QUESTIONS)

 

1.      Write any five differences between heat & temperature.


2.      Define heat, temperature & specific heat of Substance. Write Mayer’s equation for gas.

3.      Define conduction, convection, radiation and thermal conductivity.

4.      Write any five applications of conduction.

5.      Write any five applications of convection.

6.      Write any five applications of radiation.

7.   Define Cp & Cv , write the relation between them.

8.      Define conduction, write applications of conduction.

9.      Define convection, write applications of convection.

10.   Define radiation, write applications of radiation..

11.   State 1st law of thermodynamics, explain isothermal & adiabatic process.

12.   Derive an expression for coefficient of thermal conductivity (K).

13.   Compare the three modes of transfer of heat.

14.   State the three gas laws. (Boyle’s law, Charle’s law & Gay-Lussac’s law).

15.   State zeroth law, 1st law& 2nd law of thermodynamics.

 

PART – C (06 MARKS QUESTIONS)

 

1.       With usual notations prove that pv = nRT

2.       Define thermal conductivity. Derive an equation for co-efficient of thermal conductivity (K).

3.       Define specific heat of a substance. Derive an equation for specific heat of substance.

4.       Describe an experiment to verify Boyle’s law.

5.       The volume of a gas at 270c at2 atmospheric pressure is 2 liters.

If the pressure is double & absolute temperature is reduced to half. What will be the new volume of gas?

6.       A sealed glass bulb contains air at 300C at normal pressure. The bulb is immersed in an oil bath &heated gradually. Find the temperature in degree centigrade at which the bulb bursts if it can withstand a maximum pressure of 3.5atm.

7.       The volume of certain mass of a gas at STP is 2x10-4 m3. Find its volume at 27 0C at pressure 2.2x105 Pa.

8.       The volume of a gas at 150C is1.25cc &755mm of mercury pressure. Calculate volume at NTP.

9.       How much heat is required to raise the temperature of 5kg of copper from 270C to its melting point of 10630C? Given that specific heat of copper is 400 J/k0C.

10.   A hot iron ball of mass 0.2kg is dropped into 0.5g of water at 100C. The resulting temperature is 300C. Calculate the temperature of the hot ball. Specific heat of iron = 336J/kg0C and specific heat of water = 4200J/kg0C.

11.   A silver rod 0.15m long has cross-sectional area of 0.0003m2. If one end is maintained at 100C and other end at 750C. How much heat will flow through the rod in 5 minutes? Given that co-efficient of thermal conductivity of silver = 406 J/ms0C.


 

UNIT-IV:    WAVE MOTION

PART – A (02MARKS QUESTIONS)

 

1.      Define frequency and amplitude of a vibrating particle.

2.      Wrote the relation between frequency and time period.

3.      Define periodic motion with example.

4.      Define S.H.M with example.

5.      Write the equation for displacement of the particle in S.H.M.

6.      Define wave motion.

7.      Define wave period, wave frequency.

8.      Write the relation between wave velocity, wavelength & wave frequency

9.      Define non mechanical wave. Give an example.

10.   Define mechanical wave. Write two types of Mechanical wave

11.   Define transverse wave & give an example.

12.   Define longitudinal wave & give an example.

13.   Write any two differences between transverse wave and longitudinal wave.

14.   Write two characteristics of transverse wave.

15.   Write two characteristics of longitudinal wave.

16.   Write Newton’s equation for velocity of sound in a medium and name the terms involved in the equation.

17.   Write the Newton’s Laplace equation for velocity of sound in air

18.   Write the effect of pressure on velocity of sound in air.

19.   Write the effect of temp on velocity of sound in air.

20.   Write the equation for velocity of sound in air at 0°c.

21.   Write the effect of humidity on velocity of sound in air.

22.   Define free and forced vibration.

23.   Define natural frequency.

24.   Define resonance.

25.   Give any two practical examples of resonance.

26.     Define how stationary waves are produced?

27.   Write any two characteristics of stationary waves.

28.     Define nodes and antinodes.

29.   Write the difference between stationary waves and progressive waves.

30.     Write the fundamental note in vibration of stretched string.

31.   Write the formula for the fundamental frequency of vibration of stretched string.

32.   State the law of tension as applied to the vibration of stretched string.

33.   State the law of length as applied to the vibration of stretched string.

34.   State the law of mass per unit length as applied to the vibration of stretched string.

35.   Define beats.

36.   Define beat frequency.

37.   Write any two applications of beats.


38.     Write how beat frequency can be calculated?

 

PART-A (05 MARKS QUESTIONS)

 

1.      Define period, frequency & amplitude of vibrating particle.

2.      Explain mechanical &non mechanical waves with examples.

3.      Define longitudinal waves & transverse waves.

4.      Define beat and beat frequency.

5.      Obtain the relation between v, n and λ.

6.      Define periodic motion & SHM with example in each.

7.      Derive an expression for displacement of a particle executing SHM.

8.      Define wave period, wave frequency, wave amplitude, wave length and wave velocity.

9.      Distinguish between longitudinal & transverse waves.

10.   Explain propagation of sound waves in air with practical example.

11.   Describe Newton’s formula for velocity of sound in air.

12.   Explain Newton’s formula for velocity of sound in air and hence Laplace correction to it.

13.   Explain various factors affecting velocity of sound in air.

14.   What is stationary wave? Mention the characteristics of stationary waves.

15.   Why the soldiers are asked to break steps while marching across bridges.

 

 

PART- C (06 MARKS QUESTIONS)

 

1.      Derive an expression for displacement of a particle executing SHM

2.      Derive an expression for velocity of wave in terms of its frequency and wavelength.

3.      Derive an expression for fundamental frequency of vibrations of stretched string.

4.      Describe an experiment to determine the velocity of sound in air at room temperature by resonance air column method.

5.      Describe an experiment to find the unknown frequency of the given tuning fork using sonometer by comparison method.

6.      Describe an experiment to determine frequency of Turing fork by absolute method using sonometer.

7.      A wave of frequency 600MHZ travels at a speed of 3x108 m/s. Calculate its wavelength &calculate the frequency of same type of wave whose wavelength is 40m.

8.      If the frequency of tuning    fork is 500Hz & velocity of sound is 300m/s. Find how far sound travels while the fork completes 25 vibrations.

9.      Calculate the velocity of sound in air at 250C & 75cm of mercury pressure, if the density of air at 00C & 76cm of mercury pressure is 1.29kgm-3. (Given γ=1.41 for air).

10.  Calculate the speed of sound at -500 C  & at +1000C, given speed of sound at 00c is 332 m/s.

11.  The density of air at NTP is 1.293 kgm-3&γ=1.402. Calculate the frequency of a tuning fork which emits sound of wavelength 0.75m at 260 c.

12.  A string of length 2m is stretched by a force of 3200N. If the frequency of vibration is


100Hz. Find the mass of the string.

13.  A string has length of 0.3m & weight 2x10-3kg. What must be the tension in the string so that when vibrating string transversely, it has a fundamental frequency 320 Hz?

14.  A Sonometer wire of 0.5m long vibrates in two segments & is stretched by a force of 5kg wt. Calculate the frequency of the note emitted. (g=9.8m/s2 linear density of the wire=0.018kg/m).

15.  The frequency of Sonometer wire is doubled when the tension is increased by 12kg wt. Find the original tension.

 

UNIT V:     MODERN PHYSICS

PART – A (02MARKS QUESTIONS)

 

1.      Define electromagnetic waves.

2.      State two characteristics of electromagnetic waves.

3.      Write how electromagnetic waves are produced?

4.      Define electromagnetic spectrum.

5.      Write any two uses of electromagnetic spectrum.

6.      Write the principle of LASER.

7.      List any two types of LASER.

8.      Write any two principle of LASER.

9.      Write any two applications of LASER.

10.  Define nanotechnology.

11.  Write two advantages of nanotechnology.

12.  Write two disadvantages of nanotechnology.

13.    Write what do you mean by communication?

14.  Write the basic elements of communication system.

15.  List any two commonly used terms in electronic communication system.

16.  Write two advantages of communication satellite.

17.  Write two disadvantages of communication satellite.

18.  Define optical fiber.

19.  Write the principle of optical fiber. 20.Write two advantages of optical fiber.

 

PART-B (05 MARKS QUESTIONS)

 

1.      Describe the generation of electromagnetic waves.

2.      Write any five properties of electromagnetic waves.

3.      Explain how electromagnetic spectrum is classified?

4.      Write any five applications of electromagnetic spectrum.

5.      Explain the principle of LASER. List the properties of LASER.

6.      Write any five advantages of LASER.

7.      Write five advantages of nanotechnology.

8.      Write advantages and disadvantages of nanotechnology.


9.      Write the block diagram of communication system.

10.  List any five commonly used terms in electronic communication system..

11.  Write five advantages of satellite communication.

12.  Write any five disadvantages of satellite communication.

13.  Write any five advantages of optical fiber.

14.  Explain satellite communication. List any two disadvantages of satellite communication system.

PART- C (06 MARKS QUESTIONS)

 

1.      Define electromagnetic waves. Write four properties of electromagnetic waves.

2.      Define electromagnetic spectrum. Explain how electromagnetic spectrum is classified.

3.      Write the applications of electromagnetic spectrum.

4.      List six applications of LASER.

5.      Write six advantages of nanotechnology.

6.      Write what you mean by communication system. Write the block diagram of communication system..

7.      Define satellite communication system. Write four advantages of satellite communication system.

8.      Write the principle of optical fiber. Write four applications of optical fiber.

 

UNIT VI        INDUSTRIAL CHEMISTRY

PART – A (02MARKS QUESTIONS)

 

1. Define electrolysis.

2. Define electrolyte.

3. Write any four examples of electrolyte. 4.Define strong and weak electrolyte.

5.Write any two postulates of Arrhenius theory of electrolytic dissociation. 6.State Faradays Ist law of electrolysis.

7.State Faradays IInd law of electrolysis. 8.Define corrosion.

9.List any two preventive methods of corrosion. 10.Define batteries.

11.Write any two applications of batteries. 12.Define fuel cells.

13.Write any two types of fuel cells. 14.Write any two advantages of fuel cells. 15.Define minerals.

16. Define ore.

17. Define flux.

18. Define slag.

19. Define an alloy.

20. Write any two uses of alloys.


21. Define polymers. 22.Define polymerization.

23.Write any two applications of polymers. 24.List the methods of polymerization.

25.  Define composite materials.

26.Write any two types of composite materials. 27.Write two advantages of composite materials.

28. Write two disadvantages of composite materials. 29.Define solute.

30.Define solvent. 31.Define solution. 32.Define saturated solution.

33.Define unsaturated solution. 34.Define concentration of a solution. 35.Define normal solution.

36. Define molar solution. 37.Define molal solution. 38.Define pH of a solution.

39. Write any two applications of pH.

40. Write hydrogen ion concentration in case of neutral solution.

 

PART-B (05 MARKS QUESTIONS)

 

1. Explain the mechanism of electrolysis of HCl.

2. Define corrosion. Write the necessary condition of corrosion.

3. Write any five postulates of Arrhenius theory of electrolytic dissociation. 4.State Ist and IInd Faradays laws of electrolysis.

5. Write any five preventive methods of corrosion.

6.   Write the classification of batteries. Write two applications of batteries.

7.   Write two types of fuel cells. List any three advantages of fuel cells. 8.Define alloys. Write the purpose of making alloys.

9. Write the classification of polymers. Write any three applications of polymers. 10.Define composite material. Write any two advantages of composite materials.

11.    Calculate the concentration of solution when 110gmof copper sulphate is dissolved in 550gm of a solvent.

12.   Define pH of a solution. Explain acid, base, and neutral solution on the basis of pH value.

 

PART- C (06 MARKS QUESTIONS)

 

1.    State and explain Faradays laws of electrolysis?

2.    Explain the mechanism of electrolysis of HCL.

3.    Define corrosion. Write the necessary condition for corrosion.

4.  Write any six preventive methods of corrosions.

5.  Explain the electrochemical theory of corrosion.


6.    Mention what is battery? Write the applications of batteries.

7.    Define fuel cells. Mention the types of fuel cells.

8.  Write the advantages of fuel cells.

9.      Define minerals, ore, flux, slag and alloys?

10.  Write the composition steel. List three uses of alloys.

11.  Explain any two methods of polymerization.

12.  Write the applications of polymers.

13.  Write the advantages and disadvantages of composite materials.

14.  Define molar and normal solution. What is concentration of a solution? 15 .Write any six applications of pH.

 


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