Machine Tools and Machining
Advance Machine Tools
Marks 1Marks 2
1
GATE PI 2017
MCQ (Single Correct Answer)
+2
-0.6
The preparatory and miscellaneous codes used in $$CNC$$ part programming and the functions are given in the Table GATE PI 2017 Machine Tools and Machining - Advance Machine Tools Question 2 English

The correct combination of code and the respective function is

A
$$P - 4,\,\,Q - 1,\,\,R - 3,\,\,S - 2$$
B
$$P - 4,\,\,Q - 1,\,\,R - 2,\,\,S - 3$$
C
$$P - 1,\,\,Q - 4,\,\,R - 3,\,\,S - 2$$
D
$$P - 2,\,\,Q - 1,\,\,R - 3,\,\,S - 4$$
2
GATE PI 2017
MCQ (Single Correct Answer)
+2
-0.6
In a numerical control $$(NC)$$ machine positioning system, the measures of precision are expressed by considering a single axis as shown in the Figure. GATE PI 2017 Machine Tools and Machining - Advance Machine Tools Question 1 English

If $$\sigma $$ is standard deviation of the error distribution, the $$L$$, $$M$$ and $$N$$ are

A
$$L= $$ Accuracy, $$M=$$ Repeatability , $$N=$$ Control resolution
B
$$L=$$ Repeatability, $$M=$$ Accuracy, $$N=$$ Control resolution
C
$$L=$$ Control resolution, $$M=$$ Repeatability , $$N=$$ Accuracy
D
$$L=$$ Accuracy, $$M=$$ Control resolution , $$N=$$ Repeatability
3
GATE PI 2016
Numerical
+2
-0
A single axis $$CNC$$ table is driven by a $$DC$$ servo motor that is directly coupled to a lead screw of $$5$$ $$mm$$ pitch. The circular encoder attached to the lead screw generates $$1000$$ voltage pulses per revolution of the lead screw. The table moves at a constant speed of $$6$$ $$m/min.$$ The corresponding frequency (in $$kHz$$) of the voltage pulses generated by the circular encoder is __________________.
Your input ____
4
GATE PI 2015
Numerical
+2
-0
In a Flexible manufacturing system, the Automated Guided Vehicles $$(AGV)$$ move at a speed of $$50$$ $$m/min,$$ cover an average distance of $$150$$ $$m$$ to deliver and $$100$$ $$m$$ for return. If the time required for pick-up and drop is $$30$$ $$s$$ each, neglecting idle times, then the number of $$AGV$$$$s$$ required to meet the demand of $$50$$ delivers per hour is ____________.
Your input ____
GATE PI Subjects
Fluid Mechanics
Metrology
Theory of Machines
Engineering Mathematics
Heat Transfer
Machine Tools and Machining
Industrial Engineering
Engineering Mechanics
Strength of Materials
Thermodynamics
Machine Design
Casting
Joining of Materials
Metal Forming