GATE PI 2004 | GATE PI Year Wise Previous Years Questions

GATE PI 2004

MCQ (Single Correct Answer)

-0.6

Consider the following statements with respect to the relief angle of cutting tool:

$$1.$$ This affects the direction of chip flow.
$$2.$$ This reduces excessive friction between the tool and work piece
$$3.$$ This affects tool life
$$4.$$ This allows better access of coolant to the tool-work piece interface

Which of the statements given above are correct?

$$1$$ and $$2$$

$$2$$ and $$3$$

$$2$$ and $$4$$

$$3$$ and $$4$$

GATE PI 2004

MCQ (Single Correct Answer)

-0.6

In which of the choices given below, the cutting tool materials are placed in the ascending order of permissible cutting speed for machining of steel?

$$K$$ Group Cemented Carbide-$$P$$ Group Cemented Carbide-Ceramic -Cubic Boron Nitride

Cubic Boron Nitride - $$K$$ Group Cemented Carbide - $$P$$ Group Cemented Carbide - Ceramic

$$P$$ Group Cemented Carbide - $$K$$ Group Cemented Carbide - Cubic Boron Nitride - Ceramic

Ceramic - Cubic Boron Nitride - $$K$$ Group Cemented Carbide - $$P$$ Group Cemented Carbide

GATE PI 2004

MCQ (Single Correct Answer)

-0.6

In deep drawing of sheet metal, spring loaded stripper clamps the work until:

The punch penetrates twice the stock thickness

It removes wrinkles on the product edges

Shedder removes the work from the tools

Punch is completely withdrawn from the work material

GATE PI 2004

MCQ (Single Correct Answer)

-0.6

Determine the load required to punch a $$20$$ $$mm$$ diameter hole in $$2$$ $$mm$$ thick sheet. The properties of the material of the sheet are:
Tensile strength $$-580$$ $$MPa;$$
Yield strength in tension $$-410$$ $$MPa$$
Shear strength $$-350$$ $$MPa;$$
Yield strength in shear $$-250$$ $$MPa$$

The load in $$kN$$ is:

$$31.40$$

$$43.98$$

$$64.40$$

$$91.10$$

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2017