GATE PI Question Paper 2010.
GATE i.e. Graduate Aptitude Test in Engineering Production and Industrial Engineering 2010 Exam Has been Conducted by IISc Bangalore IIT Bombay IIT Delhi IIT Guwahati IIT Kanpur IIT Kharagpur IIT Madras IIT Roorkee. This GATE PI 2010 examination is the procedure to get the admission in M.Tech
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GATE PI Question Paper 2010
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Q.1 Dunng the filling process of a given sand mould caVity by molten metal through a horizontal runner of circular cross-section. the frictional head loss ci the nx’lten ntal in the ninner will increase with the
(A) increase in runner diameter (B) decrease in internal surface roughness of runner
(C) decrease iii length of runner (C)) increase in average velocity of molten metal
Q.2 Solidification time of a metallic alloy casting is
(A) directly proportional to its surface area
(B) inversely proportional to the specific heat of the cast material
(C) directly proportional to the thermal diffusivity of the mould material
(D) inversely proportional to the pouring temperature
Q.3 In a rolling process, the roll separating force can be decreased by
(A) reducing the roll diameter (B) increasing friction lr*ween thc rolls and the nrtal
(C) reducing front tension to rolled material (I)) providing back-up rolls
Q.4 Ultrasonic machines, used in material removal processes. require ultrasonic transducers. The transducers work on different working principles- One of the working principles of such ultrasonic transducers is based on
(A) eddy current effect (B) Scebeck effect
(C) piezo-resistive effect (D) piezo-electric effect
Q.5 Hot die sil. used for large solid dies in drop lorging. should necessarily have
(A) high sirengh and high copper content
(B) high hardness and low harcienabElity
(C) high toughness and low thermal conduclLviy
(D) high hardncss and high thermal cuducIivLLy
Q.6 In powder metallurgy, sintenng of a component
(A) impro’wcs strength and reduces hardness (B) reduces britleness and improves strength
(C) imProves hardnei and reduces toughness (D) reduces porosity and increases briltlencss