Question 1 :
A strip is to rolled from a thickness of 30 mm to 15 mm using a two-high mill having rolls of diameter 300 mm. The coefficient of friction for unaided bite should nearly be:

Question 2 :
Consider the following statements pertaining to a centrifugal pump <table> <tr> <td> 1. The manometric head is the head developed by </td> </tr> <tr> <td> 2. The suction pipe has, generally, a larger diameter as compared to the discharge pipe. </td> </tr> <tr> <td> 3. The suction pipe is provided with a foot valve and a strainer. </td> </tr> <tr> <td> 4. The delivery pipe is provided with a foot valve and a strainer. </td> </tr> </table> Of these statements:

Question 3 :
Which of the following thermodynamic properties relate to the Clausius-Clapeyron equation? <table> <tr> <td> 1. Pressure </td> </tr> <tr> <td> 2. Temperature </td> </tr> <tr> <td> 3. Entropy </td> </tr> <tr> <td> 4. Specific volume </td> </tr> <tr> <td> 5. Enthalpy </td> </tr> <tr> <td> 6. Internal energy </td> </tr> </table> Select the correct answer using the code given below:

Question 4 :
Match List I with List II and select the correct answer using the codes given below the Lists: <table> <tr> <td> List-I (Operating condition) </td> <td> List-II (Approximate air fuel ratio) </td> </tr> <tr> <td> A. </td> <td> Idling </td> <td> 1. </td> <td> 16 </td> </tr> <tr> <td> B. </td> <td> Part load operation </td> <td> 2. </td> <td> 10 </td> </tr> <tr> <td> C. </td> <td> Full load </td> <td> 3. </td> <td> 12.5 </td> </tr> <tr> <td> D. </td> <td> Cold start </td> <td> 4. </td> <td> 3 </td> </tr> </table> Codes:

Question 5 :
Consider the following statements: <table> <tr> <td> In a vapour compression system, a thermometer placed in the liquid line can indicate whether the: </td> </tr> <tr> <td> 1. Refrigerant flow is too low </td> </tr> <tr> <td> 2. Water circulation is adequate. </td> </tr> <tr> <td> 3. Condenser is fouled. </td> </tr> <tr> <td> 4. Pump is functioning properly. </td> </tr> </table> Of these statement:

Question 7 :
The design calculations of members subject to fluctuating loads with the same factor of safety yield the most conservative estimates when using:

Question 8 :
Process capability of a machine is defined as the capability of the machine to

Question 9 :
Which one of the following is the purpose of a surge tank in a Pelton turbine station?

Question 10 :
A cord is used to lower vertically a block of mass M a distance d at a constant downward acceleration of g/4. Then the work done by the cord on the block is:

Question 11 :
The movable wicket gates of a reaction turbine are used to:

Question 12 :
Which of the following are the characteristics of cold working of metals? <table> <tr> <td> 1. Stresses are set up in the metal that remain unless removed by subsequent heat treatment </td> </tr> <tr> <td> 2. Coarse grains are refined </td> </tr> <tr> <td> 3. Strength and hardness are increased. </td> </tr> </table> Select the correct answer using the code given below:

Question 13 :
Which one of the following is the extensive property of a thermodynamic system?

Question 14 :
Annual demand for a product costing Rs.100 Per piece is Rs.900. Ordering cost per order is Rs.100 and inventory holding cost is Rs.2 per unit per year. The economic size is:

Question 15 :
A reverted gear train is one in which the output shaft

Question 16 :
m binary number system the first digit (bit) from right to left is called as

Question 18 :
Which one of the following subroutines does, a computer implementations liner programming by the simplex method use?

Question 19 :
Which one of the following processes necessarily requires mandrel of requisite diameter to form the internal hole?

Question 21 :
What is the variation of cutting speed with tool life on Log-Log Scale?

Question 23 :
A thin circular ring of mass M and radius R is rotating about it axis with a constant angular velocity {tex}\omega .{/tex} Two objects each of mass m are attached gently to the opposite ends of a diameter of the ring. The wheel now rotates with an angular velocity of:

Question 26 :
Which one of the following is the correct statement? For the case of laminar flow between two fixed parallel plates, the shear stress is

Question 27 :
The vertical component of force on a curved surface submerged in a static liquid is to the:

Question 30 :
Steam enters a diffuser at Mach number 2.5 and exits at Mach number 1.8. The shape of the diffuser is:

Question 31 :
The drage coefficient for laminar flow varies with Reynolds number (Re) as:

Question 33 :
The velocity of sound in an ideal gas does not depend on:

Question 34 :
The limiting wear load of spur gear is proportional to (where {tex}{{E}_{p}}\,\,={/tex} Young's modulus of union material; {tex}{{E}_{g}}\,\,={/tex} Young's modulus of gear material:

Question 37 :
Which of the following statements are correct? <table> <tr> <td> 1. For constant velocity ratio transmission between two gears, the common normal at the point of contact must always pass through a fixed point on the line joining the centres of rotation of the gears. </td> </tr> <tr> <td> 2. For involute gears the pressure angle changes with change in centre distance between gears. </td> </tr> <tr> <td> 3. The velocity ratio of compound gear train depends upon the number of teeth of the input and output gears only. </td> </tr> <tr> <td> 4. Epicyclic gear trains involve rotation of at least one gear axis about some other gear axis. </td> </tr> </table>

Question 40 :
Consider the following statements: <table> <tr> <td> 1. Critical or whirling speed of the shaft is the speed at which it tends to vibrate violently in the transverse direction. </td> </tr> <tr> <td> 2. To find the natural frequency of a shaft carrying several loads, the energy method gives approximate results. </td> </tr> <tr> <td> 3. Dunkerley's method gives accurate results of the natural frequency of a shaft carrying several loads. </td> </tr> </table> Which of these statements is/are correct?

Question 42 :
Which of the following pairs are correctly matched? <table> <tr> <td> 1. CNC machine......... Post processor. </td> </tr> <tr> <td> 2. Machining centre........... Tool magazine </td> </tr> <tr> <td> 3. DNC.......... FMS </td> </tr> </table>

Question 44 :
Match List-I with List-II and select the correct answer using the codes given below the lists: <table> <tr> <td> List-I (Material) </td> <td> List-II (Applications) </td> </tr> <tr> <td> A. </td> <td> Tungsten carbide </td> <td> 1. </td> <td> Abrasive wheels </td> </tr> <tr> <td> B. </td> <td> Silicon nitride </td> <td> 2. </td> <td> Heating elements </td> </tr> <tr> <td> C. </td> <td> Aluminium oxide </td> <td> 3. </td> <td> Pipes for conveying liquid metals </td> </tr> <tr> <td> D. </td> <td> Silicon carbide </td> <td> 4. </td> <td> Drawing dies </td> </tr> </table> Codes:

Question 46 :
Which of the following materials are used for making patterns in investment casting method? <table> <tr> <td> 1. Wax </td> </tr> <tr> <td> 2. Rubber </td> </tr> <tr> <td> 3. Wood </td> </tr> <tr> <td> 4. Plastic </td> </tr> <tr> <td> Select the correct answer using the code given below: </td> </tr> </table> Code:

Question 47 :
A viscous damping system with free vibrations will be critically damped if the damping factor is:

Question 48 :
Match List-I with List-II and select the correct answer using the codes given below the lists: <table> <tr> <td> List-I (Requirement) </td> <td> List-II (Type) </td> </tr> <tr> <td> A. </td> <td> High temperature service. </td> <td> 1. </td> <td> Teflon bearing </td> </tr> <tr> <td> B. </td> <td> High load </td> <td> 2. </td> <td> Carbon bearing </td> </tr> <tr> <td> C. </td> <td> No lubrication </td> <td> 3. </td> <td> Hydrodynamic bearing </td> </tr> <tr> <td> D. </td> <td> Bushings </td> <td> 4. </td> <td> Sleeve bearing </td> </tr> </table> Codes:

Question 49 :
Which of the following refrigerant has the maximum ozone depletion in the stratosphere?

Question 50 :
Match List-I with List-II and select the correct answer using the codes given below the Lists: <table> <tr> <td> List-I </td> <td> List-II </td> </tr> <tr> <td> A. </td> <td> Flywheel </td> <td> 1. </td> <td> Dunkerley Method </td> </tr> <tr> <td> B. </td> <td> Flywheel </td> <td> 2. </td> <td> Turning Moment </td> </tr> <tr> <td> C. </td> <td> Governor </td> <td> 3. </td> <td> d' Alembert's Principle </td> </tr> <tr> <td> D. </td> <td> Inertia Force </td> <td> 4. </td> <td> Speed control on bar with load </td> </tr> </table> Codes: