ME GATE 2009 - Online Test
Q1. The effective number of lattice points in the unit cell of simple cubic, body centered cubic, and face
centered cubic space lattices, respectively, are
Answer : Option B
Explaination / Solution:
No Explaination.
Q2. Friction at the tool-chip interface can be reduced by
Answer : Option D
Explaination / Solution:
No Explaination.
Q3. Two streams of liquid metal, which are not hot enough to fuse properly result into a casting defect
known as
Answer : Option A
Explaination / Solution:
No Explaination.
Q4. Which of the following is the correct data structure for solid models?
Answer : Option C
Explaination / Solution:
No Explaination.
Q5. Which of the following forecasting methods takes a fraction of forecast error into account for the
next period forecast?
Answer : Option D
Explaination / Solution:
No Explaination.
Q6. Minimum shear strain in orthogonal turning with a cutting tool of zero rake angle is
Answer : Option D
Explaination / Solution:
No Explaination.
Q7. Electrochemical machining is performed to remove material from an iron surface of 20mm ×
20mm under the following conditions:
Inter electrode gap= 0.2mm
Supply voltage (DC)= 12V
Specific resistance of electrolyte = 2Ωcm
Atomic weight of Iron= 55.85
Valency of Iron = 2
Faraday’s constant = 96540 Coulombs
The material removal rate (in g/s) is
Answer : Option A
Explaination / Solution:
No Explaination.
Q8. Match the following:
NC Code Definition
P. M05 1. Absolute coordinate system
Q. G01 2. Dwell
R. G04 3. Spindle stop
S. G90 4. Linear interpolation
Answer : Option C
Explaination / Solution:
No Explaination.
Q9. In a machining experiment, tool life was found to vary with the cutting speed in the following
manner:
The exponent (n) and constant (k) of the Taylor’s tool life equation are
Answer : Option A
Explaination / Solution:
No Explaination.
Q10. In a machining experiment, tool life was found to vary with the cutting speed in the following manner:
What is the percentage increase in tool life when the cutting speed is halved?
Answer : Option C
Explaination / Solution:
No Explaination.
