1
GATE PI 1992
MCQ (Single Correct Answer)
+2
-0.6
A $$DC$$ servomotor is directly driving an $$NC$$ table. The pitch of the lead screw of the table is $$5$$ $$mm.$$ The motor rotates at $$100$$ $$rpm$$ for an applied voltage of $$10V.$$ If the voltage speed characteristic of the motor is linear, the applied voltage for a table of $$3m/min$$ is equal to:
A
$$30$$ $$V$$
B
$$60$$ $$V$$
C
$$33$ $$V$$
D
$$50$$ $$V$$
2
GATE PI 1992
MCQ (Single Correct Answer)
+2
-0.6
The component development and manufacturing activities when assisted by a computer are: Computer Aided Graphics $$(CAG), CAD, CAM, CAPP$$ and Computer Aided Quality Control $$(CAQC).$$ The most appropriate sequence of these activities is
A
$$CAD - CAG - CAPP - CAM - CAQC$$
B
$$CAG - CAD - CAM - CAPP - CAQC$$
C
$$CAD - CAG - CAPP - CAQC - CAM$$
D
$$CAD - CAPP - CAG - CAM - CAQC$$
3
GATE PI 1992
MCQ (Single Correct Answer)
+1
-0.3
In metal cutting with a carbide tool, at the maximum recommended speed, the largest $$\% $$ of heat generated goes to the
A
tool
B
chip
C
work
D
tool post
4
GATE PI 1992
MCQ (Single Correct Answer)
+2
-0.6
Find the speed range ratio for the drilling machine spindle if the minimum and maximum diameters of drills used are $$5$$ $$mm$$ and $$25$$ $$mm$$ respectively and if the machinability indices for the work materials are $$120$$ (brass) and $$40$$ (alloy steel)
A
$$3/5$$
B
$$5/3$$
C
$$5$$
D
$$15$$