PREVIOUS YEAR QUESTION PAPER

PREVIOUS YEAR QUESTION PAPER – GATE 2009

PREVIOUS YEAR QUESTION PAPER – GATE 2009

PREVIOUS YEAR QUESTION PAPER – GATE 2009 ----- CLICK HERE TO VIEW

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DOM MANUAL / B-TECH / MECHANICAL / KUK - TO FIND THE SPEED AND TORQUE OF DIFFERENT GEARS IN AN EPICYCLIC GEAR TRAIN.

OBJECTIVE: TO FIND THE SPEED AND TORQUE OF DIFFERENT GEARS IN AN EPICYCLIC GEAR TRAIN. SPECIFICATIONS : 1. GEAR TRAIN : SUN GEAR : 14 TEETH 2. PLANT GEAR: 21 TEETH (2 NOS.) 3. INTERNAL GEAR WITH : 56 TEETH TORQUE MEASUREMENT · INPUT TORQUE – MOTOR CURRENT CALIBRATED FOR MOTOR TORQUE. · PLANT CARRIER - PULLEY OF 50 MM DIA AND SPRING BALANCE. · INTERNAL GEAR - PULLEY, 120 MM DIA AND SPRING BALANCES. Ø BOTH PULLEYS ARE PROVIDED WITH ROPE OF 12 Ø MM DIA Ø DRIVE MOTOR - 1HP DC MOTOR RPM MOTOR OPERATING ON 220 VOLTS Ø 50 HZ SUPLLY, DRIVING THE SUN GEAR. CURRENT(AMPS) TORQUE 1.00 0.5 1.20 1.5 1.40 2.5 ...

MANUFACTURING PROCESS - DRAFT OR TAPER ALLOWANCE

DRAFT OR TAPER ALLOWANCE BY DRAFT IS MEANT THE TAPER PROVIDED BY THE PATTERN MAKER ON ALL VERTICAL SURFACES OF THE PATTERN SO THAT IT CAN BE REMOVED FROM THE SAND WITHOUT TEARING AWAY THE SIDES OF THE SAND MOLD AND WITHOUT EXCESSIVE RAPPING BY THE MOLDER. FIGURE SHOWS A PATTERN HAVING NO DRAFT ALLOWANCE BEING REMOVED FROM THE PATTERN. IN THIS CASE, TILL THE PATTERN IS COMPLETELY LIFTED OUT, ITS SIDES WILL REMAIN IN CONTACT WITH THE WALLS OF THE MOLD, THUS TENDING TO BREAK IT. FIGURE IS AN ILLUSTRATION OF A PATTERN HAVING PROPER DRAFT ALLOWANCE. HERE, THE MOMENT THE PATTERN LIFTING COMMENCES, ALL OF ITS SURFACES ARE WELL AWAY FROM THE SAND SURFACE. THUS THE PATTERN CAN BE REMOVED WITHOUT DAMAGING THE MOLD CAVITY. PATTERN HAVING DRAFT ON VERTICAL EDGES DRAFT ALLOWANCE VARIES WITH THE COMPLEXITY OF THE SAND JOB. BUT IN GENERAL INNER DETAILS OF THE PATTERN REQUIRE HIGHER DRAFT THAN OUTER SURFACES. THE AMOUNT OF DRAFT DEPENDS UPON THE LENGTH OF THE...

Boiler Mounting - Water Level Indicator

WATER LEVEL INDICATOR Function: It is indicates the water level inside the boiler to an observer. Working: The water of the boiler comes into the glass tube through the lower tube and the steam through the upper tube. The water then stands in the glass tube at the same level as in the boiler. Two cocks are used to control the passage of between the boiler and the glass tube while the third cock is in used to discharge some of the water from inside the boiler to see whether the gauge is in proper order or not. The glass tube is protected by means of a cover, made of specially toughened glass, which will prevent any accident that may happen due to breaking of glass tube. It is used for ordinary boilers. Image - Water Level Indicator Figure - Water Level Indicator

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