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Mechanical engineering Questions and solutions set - 18

Mechanical engineering Questions and solutions set - 18
Question:-
Option (A)
0.15
Option (B)
0.3
Option (C)
0.45
Option (D)
0.6
Correct Option:
D
Question Solution:

N=W = 100 n
f=μN = 60 N
=> μ(100)=60
=> μ=0.6
Question:-
Option (A)
continuous and analytic
Option (B)
discontinuous and is not analytic
Option (C)
discontinuous and analytic
Option (D)
continuous and is not analytic
Correct Option:
D
Question:-
Option (A)
1
Option (B)
2
Option (C)
4
Option (D)
8
Correct Option:
B
Question Solution:

Rectangle ABCD inside circle of radius r maximum area of rectangle
=2 x Area of triangle ACD = = 2a2
Radius a=1 unit
Then maximum area of rectangle
=2 (1)2 = 2 unit2
Question:-
Option (A)
π
Option (B)
infinity
Option (C)
4
Option (D)
Correct Option:
B