Bh.Questionbanks  MECHANICAL 
Brainheaters Questionbanks (Semester Exam) is the collection of handpicked set of questions which are mostly repeated, important and recommended. Learning this set of questions can easily help you top or even just clear the exams. Given below are Expected Questionbanks for semester.
Semester 5DMII
MODULE1 1. State the different types of governors. (4M) 2.Explain Gyroscopic Couple Discuss the effect of damping on vibratory system. (4M) 3.Write the Numerical for Force analysis of governors Porter and Hartnell governors (10M) 4. Explain stable, unstable and isochronous governor? (5M) 5. Write the Numerical for Gyroscopic couple and its effect on spinning bodies. (10M) 6. Write the Numerical for Permissible speeds on curve paths(10M) MODULE2 1. Write the Numerical for Turning moment on crankshaft. (10M) Write the Numerical for Slider crank mechanism (neglecting mass of connecting rod and crank) 2. Explain Dynamically Equivalent System and correction Couple. (10M) 3. Write the Numerical for Dynamically equivalent systems. 4. State and explain correction couple. (5M) MODULE3 1. Determine the natural frequency of oscillation of a half solid cylinder of mass 'm' and radius 'r' when it is slightly displaced from mean position and released. (10M) 2. Find the natural frequency of the pulley system shown in fig by neglecting friction and masses of pulleys. (10M) 3. A mass m is guided in Xdirection and is connected by a spring system as shown in Fig. Find the equivalent Stiffness of the spring system and hence it is natural frequency. (10M) 4. Prove that an undamped measuring instrument will show a true response for frequency ratio (Given) (5M) MODULE4 1. Write the Numerical for Determine (i) the logarithmic decrement (ii) damping factor & damping coefficient (iii) spring stiffness. (10M) 2. How to convert multisprings, multi dampers into a single spring and damper with linear or rotational coordinate system? (10M) 3. Derive the equation for critical speed of a light shaft with a single disk without damping. (10M) 4. What is logarithmic decrement and what is its important? (5M) MODULE5 1. Explain in detail condition monitoring and fault diagnosis. (4M) 2. Write the Numerical for Find the damping coefficient. (10M) 3. How does the force transmitted to the base change as the speed of the machine increases. Explain using an equation and the corresponding graph. (10M) 4. Explain the principle of vibration measuring instruments and working principle of any one amplitude measuring instrument. (10M) 5. Write the Numerical for Determine the displacement amplitude. (10M) 6. Write the Numerical for (Given) What is the required static deflection of an undamped isolator to achieve 80% isolation? (10M) 8. Explain vibration based condition monitoring and fault diagnosis in rotating machine. (5M) MODULE6 1. Explain the term critical speed of rotating shaft. (4M) 2. Why is balancing necessary for rotors of high speed engines? (4M) 3. Write the Numerical for Undamped and damped (10M) 4. Write the Numerical for Determine the magnitude of balancing masses and their respective angular positions OR Balancing of reciprocating masses in Inline engines. (10M) HT
MODULE1 1. Define and explain physical significance of Reynolds and Nusselt number. (5M) 2. Explain Thermal contact resistance & Thermal network resistance. (4M) 3. Define the following terms: (i) Absorptivity (ii) Reflectivity (iii) Transmissivity. (iv) Emissivity. Explain Kirchoffs law. (6M) MODULE2 1. Derive general equation of heat conduction in Cartesian coordinate system and reduce it to all three forms. (10M) 2. What do you mean by critical thickness of insulation? State its importance. Derive an expression for critical radius of insulation for sphere of thermal conductivity k and outside film coefficient ho. (10M) 3. What is Critical thickness of Insulation, for cylinder and sphere, its significance. (4M) 4. Write the Numerical for Determine thermal conductivity of (Given). (10M) 5. Explain nondimensional number used in convection heat transfer. (4M) MODULE3 1. Write the Numerical for Calculate the net heat flow (Given) (5M) 2. Explain Fin efficiency and Fin effectiveness. Explain in brief factors affecting fin effectiveness. (5M) 3. Write the Numerical for Use Dittus Boelter correlation (10M) 4. Write the Numerical for Thermocouple (Given) (6M) 5. Write the Numerical for Numerical methods in heat transfer (5M) 7. Write the Numerical for Governing differential equation for fin and its solution. (510M) 8. Write the Numerical for Lumped system Analysis. (510M) 9. Explain Buckingham  theorem. (6M) 11. What is Efficiency and Effectiveness of fin? (4M) MODULE4 1. Write the Numerical for Parallel flow arrangement? (5M) 2. In which mode of heat transfer is the convection heat transfer coefficient usually higher, natural convection or forced convection? Why? (4M) 3. Write the Numerical for Convection Velocity Boundary layer and Thermal Boundary layer. OR Convection Velocity Boundary layer and Thermal Boundary layer. (8M) 4. Write short note onHydrodynamic and Thermal boundary layer. (5M) 5. Write the Numerical for Laminar and turbulent flow over a flat plate. (510M) 6. Write the Numerical for Determination of heat transfer coefficient. (10M) 7. Explain nondimensional number used in convection heat transfer. (4M) MODULE5 1. Define intensity of radiation. What is solid angle? Explain. (5M) 2. Write the Numerical for Radiation heat exchange between nonblack bodies . (6M) 3. Write the Numerical for Radiosity and irradiation, Radiation shield. (10M) 4. Write a short note on Intensity of radiation & Solid angle. (5M) 5. Define Shape factor and write down the properties of shape factor. (4M) 6. Planck’s law and Kirchhoff’s law (510M) MODULE6 1. Write the Numerical for Calculate the following (i) Heat exchanger area (ii) Rate of heat transfer Use LMTD method. (8M) 2. Derive an expression for LMTD for parallel flow type heat exchange. (8M) 3. Write the Numerical for Effectiveness of heat exchangers OR Effectiveness –NTU method. (10M) 4. Draw a neat boiling curve for water showing different regions of boiling. Explain each regime in brief. (6M) 5. Starting from basic derive an expression for effectiveness of parallel flow heat exchanger in terms of NTU and capacity ratio. (12M) 6. Write the Numerical for Pool boiling OR Flow boiling (8M) 7. Explain the construction and working of Heat Pipe. (4M) ICE
MODULE1 1. State the reasons for efficiency of actual cycle is much lower than the air standard cycle efficiency? List the major losses and differences in actual engine cycle and air standard cycle. Also draw actual cycle. (10M) 2. Briefly discuss the various efficiency and their significance associated with Engine. (5M) MODULE2 1. Explain the working of Transistorized Coil Ignition System with the help of neat Sketch and state its merits and Demerits. (10M) 2. State the types of electronic ignition system and explain Capacitance Discharge Ignition System. (10M) MODULE3 1. Describe the CRDI System with neat sketch and state its advantages and disadvantages. (8M) 2. Write the Numerical for Calculate the diameter of fuel orifice (10M) 3. Explain why a rich mixture is required for Idling and sudden acceleration. (5M) 4. Write the Numerical for Calculate: (i) Time for one injection and (ii) Fuel flow rate through an injector. (Given) = 14.5. (10M) 5. Discuss the advantages and disadvantages of petrol injection system with conventional carburetor system. Explain with diagram multipoint fuel injection system. (10M) 6.What is vapor lock? How is it related with ASTM distillation curve of the fuel? (5M) MODULE4 1. Compare Air Cooling System and Liquid Cooling System. (5M) 2. What are the essential properties of Lubricants? Explain with neat sketch Mist Lubrication System. (10M) 3. Write the Numerical for Determine degree of supercharging required to maintain the same brake power of sea level. (12M) 4. What is compensation and why it is done in Carburetor. (5M) 5. Explain the working of Thermostatic Cooling system. (5M) 6. Define pour point and flash point and discuss its importance in selecting the lubricating oil for I.C. Engine. (5M) MODULE5 1. Write a short note on HCCI Engine. (5M) 2. Write the Numerical for Determine the Indicated thermal Efficiency and volumetric efficiency based on atmospheric conditions. (12M) 3. Describe in detail the various stages of combustion in SI Engine. (8M) 4. Write a note on ratings of fuel for IC Engine. (5M) 5. With the help of a neat sketch explain Catalytic convertor. (5M) 6. Write the Numerical for Electronically controlled unit fuel injection system (510M) 7. Justify the requirement of air motion and swirl in a C. I. Engine combustion chamber is much more stringent than in an S. I. Engine. (8M) 8. Write the Numerical for Willan's line test. (12M) 9. Write the Numerical for Fuel Injection Systems (5M) 10. Describe briefly Engine Pollution and the Norms. (5M) MODULE6 1. Give a brief account of Exhaust Oxygen Sensor. (5M) 2. List engine management sensors and state its importance. (10M) 3. Discuss the use of biogas as a substitute fuel for S.I. Engine. Mention the modifications required with the engine system. (10M) MMC
MODULE1 1. Explain the following terms with respect to static characteristics of the measuring instruments: I) Hysteresis II) Accuracy and Precision Ill) Resolution IV) Drift (5M) 2. Write the Numerical for Determine the required velocity error coefficient. (10M) 3. What is the resolution in degrees of an encoder with 6 tracks? And Write the Numerical also (Given) (5M) MODULE2 1. Explain the construction and working of non contact type of speed measurement system with a neat sketch. (10M) 2. Write the Numerical for Strain gauge based load cells and torque sensors (510M) 3. Explain the principle of LVDT with a neat sketch. (5M) 4. Write the Numerical for Displacement Measurement (5M) 5. Write the Numerical for Strain Measurement 6. Write the Numerical for Measurement of Angular Velocity 7. Write the Numerical for Acceleration Measurement MODULE3 1. Write the Numerical for Gauge factor (10M) 2. Enumerate the types of pressure measurement devices w.r.t to pressure levels. Explain the construction and working of Bourdon tube with a neat sketch. (10M) 3. Explain the construction and working of an Optical Pyrometer with a neat sketch. (10M) 4.Write the Numerical for Temperature Measurement (10M) 5. Enumerate the types of pressure measurement devices w.r.t. levels i.e. low, medium and high pressures to be measured. State the working principle for each pressure level with example. (10M) 6. What are the different temperature compensation techniques used in the measurement of strain using strain gauges? Explain any two methods in details. (10M) 7. Temperature measurement devices, Enlist contact and noncontact types that are widely used in Industry and social life. Give their merits and demerits based on technology and handling of gazettes w.r.t. Applications. (5M) MODULE4 1. Write the Numerical for Obtain transfer function C(s) / R(s) using block diagram reduction technique. (10M) 2. Write the Numerical for For a unity feedback system having open loop transfer function (Given). (8M) 3. Differentiate between open and closed loop systems with their respective block diagrams and examples. (5M) 4. Differentiate between open and closed loop system with example. (5M) MODULE5 1. Write the Numerical for Determine all time domain specifications for unit step input and plot the response curve. (10M) 2. Write the Numerical for Steadystate error 3. Write the Numerical for Ramp and parabolic inputs MODULE6 1. Write the Numerical for Sketch the Root Locus for the given system (Given) Comment on its stability. (10M) 2. Write the Numerical for (Given) Draw Bode plot and comment on its stability. (10M) 3. Write the Numerical for Convert the following state space system into transfer function: (10M) 4.Write the Numerical for Determine the: stability using Routh Hurwitz Criterion of the following characteristic equation: 5.What do you understand by a Statespace modeling of a system? Define state space and state variables. (5M) 6. Write a short note on PID controller. (5M) Semester 6MQE
MODULE1
MDI
MODULE1
FEA
MODULE1
RAC
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