GATE PI 2004 | GATE PI Year Wise Previous Years Questions

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GATE PI 2004

MCQ (Single Correct Answer)

-0.3

The metal powder used in Thermit welding of steel is:

$$Al$$

$$Cu$$

$$Pb$$

$$W$$

GATE PI 2004

MCQ (Single Correct Answer)

-0.3

The current in Amperes used in resistance spot welding of plain carbon steel sheets ($$1$$ to $$3$$ $$mm$$ thick) lies within the range:

$$10$$-$$50$$

$$50$$-$$500$$

$$500$$-$$5000$$

$$5000$$-$$50000$$

GATE PI 2004

MCQ (Single Correct Answer)

-0.6

A non standard thread of pitch $$3.175$$ $$mm$$ is to be cut on a lathe having lead screw of pitch $$6$$ $$mm.$$ A change gear set provided with the lathe has one gear each with the following number of teeth: $$20, 30, 40, 50, 60, 70, 80,$$ $$90, 100, 110, 120, 127.$$ The correct pairs of change gears $$\left( {a/b\,\,x\,\,c/d} \right)$$ for machining the given thread are (assuming that the transmission ratio of the rest of the kinematic train between the lathe spindle and lead screw is equal to

$${{127} \over {30}} \times {{20} \over {80}}$$

$${{127} \over {40}} \times {{20} \over {120}}$$

$${{127} \over {20}} \times {{30} \over {120}}$$

$${{127} \over {50}} \times {{30} \over {80}}$$

GATE PI 2004

MCQ (Single Correct Answer)

-0.6

For machining the circular arc shown in the figure below on a $$NC$$ machine, the interpolation parameters $$(I.K)$$ and the incremental movements in the direction of the $$X$$ and $$Z$$ axes are programmed as GATE PI 2004 Machine Tools and Machining - Advance Machine Tools Question 20 English

GATE PI 2004 Machine Tools and Machining - Advance Machine Tools Question 20 English

$${\rm I} = 0,\,\,K = R,\,\,X = - \left( {R - P} \right),\,\,Z = - Q$$

$${\rm I} = R,\,\,K = 0,\,\,X = - \left( {R - P} \right),\,\,Z = - Q$$

$${\rm I} = P,\,\,K = Q,\,\,X = R,\,\,Z = R - Q$$

$${\rm I} = Q,\,\,K = P,\,\,X = \left( {R - P} \right),\,\,Z = R$$

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2017