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Mechanical engineering Questions and solutions set - 11

Mechanical engineering Questions and solutions set - 11
Question:-
Option (A)
        0°
Option (B)
        30°
Option (C)
        45°
Option (D)
        60°
Correct Option:
D
Question Solution:

        
        
        => 2 - 1 + 2 =
        => 3 = 6 cos&θ
        => cos&θ =
        &θ = 60
Question:-
Option (A)
        workpiece and tool material
Option (B)
        tool material and feed
Option (C)
        work material and feed
Option (D)
        workpiece material, tool material and feed
Correct Option:
D
Question Solution:
Taylor's tool life equation VTn = C
        Where C and n are constant depending on the tool and work material, tool geometry, and cutting condtion (except speed).
Question:-
Option (A)
        0
Option (B)
        1
Option (C)
        2
Option (D)
        3
Correct Option:
C
Question Solution:
A =
        R3 = 3 R1
        R3 is dependend on R1
        Therefore number of independent row = 2
        rank(A) = 2
Question:-
Option (A)
        9
Option (B)
        9/2
Option (C)
        15/2
Option (D)
        ∞
Correct Option:
B
Question Solution:
Geometric series
        sn =
        sn =