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Mechanical engineering Questions and solutions set - 9

Mechanical engineering Questions and solutions set - 9
Question:-
Option (A)
43.3
Option (B)
86.6
Option (C)
100
Option (D)
200
Correct Option:
C
Question Solution:
Since springs are in parallel
Keq = K1 + K2
= 150 + 50 = 200 N/cm
= 200 × 100 N/m
= 100 rad/sec
Question:-
Option (A)
(P/V)T = 0(2P/V2)T = 0
Option (B)
(V/P)T = 0 (2V/P2)T = 0
Option (C)
(P/T)v = 0 (2P/T2)v = 0
Option (D)
(V/T)p = 0 (2V/T2)p = 0
Correct Option:
A
Question:-
Option (A)
milling cutter
Option (B)
gold ornaments
Option (C)
jet engine nozzle
Option (D)
buckets for supercharging
Correct Option:
B
Question Solution:
Gold ornaments are made by slush casting
Question:-
Option (A)
To decrease the diameter and increase the thickness
Option (B)
To increase the diameter and to decrease the thickness
Option (C)
To increase the thickness of a ring
Option (D)
For producing a seamless tube
Correct Option:
B
Question Solution:
Ring rolling is used to decrease the thickness and increase the diameter.
Question:-
Option (A)
If f(x) is a linear function of x
Option (B)
If f(x) is a quadratic function of x
Option (C)
for any f(x)
Option (D)
for no f(x)
Correct Option:
C
Question:-
Option (A)
2454
Option (B)
3194
Option (C)
3394
Option (D)
3794
Correct Option:
C
Question Solution:
(N5)A = (N5)B
Þ {NÖP / H5/4}A = {NÖP / H5/4}B
As HA = HB