This Is 4th Part of 4.To see other parts Click links at bottom of this paper
91. Match List-I with List-II and select the correct answer using the code given below the lists:
List-I List-II
(Principle/Method) (Corresponding Application)
A. Klein's construction ' 1. Instantaneous centers in linkages
B. Kennedy's theorem 2. Relative acceleration of linkages
C. D' Alembert's principle 3. Mobility of linkages
D. Grubler's rule 4. Dynamic forces in linkages
Code:
A B C D
a) 4 1 2 3
b) 2 3 4 1
c) 4 3 2 1
d) 2 1 4 3
92.
The figure above shows the schematic of an automobile having a mass of 900 kg and the
suspension spring constant of 81 x 104 N/m . If it travels at a speed of 72 km/hr on a rough
road with periodic waviness as shown, what is the forcing frequency of the road on the
wheel ?
(a) 10 Hz (b) 4 Hz
(c) 1.5 Hz (d) 20 Hz
93.
At a given instant, a disc is spinning with angular velocity co in a plane at right angles to thepaper, (see the figure) and after a short interval of time δt, it is spinning with angular
velocity w+δw and the axis of spin has changed direction by the amount δθ
In this situation what is the component of acceleration parallel to OA?
(a) dθ/dt (b) w(dθ/dt)
(c) dw/dt (d) dθ/dw
94. A shaft is subjected to combined twisting moment T and bending moment M. What is the
equivalent bending moment ?
95. The ratio of torque carrying capacity of a solid shaft to that of a hollow shaft is given by :
(a) (1-K4) (b) (1-K4)-1
(c) K4 (d) 1/K4
Where K=Di/Do
Di. = Inside diameter of hollow shaft
D0 = Outside diameter of hollow shaft Shaft materials are the same.
96. The principal stresses at a point in two-dimensional stress system are σ1 and σ2 and
corresponding principal strains are e1 and e2 If E and v denote Young's modulus and Poisson's
ratio, respectively, then which one of the following is correct ?
(a) σ1=Ee1
(b) σ1=(E/[1-v2])[e1+ve2]
(c) σ1=(E/[1-v2])[e1-ve2]
(d) σ1=E(e1-ve2)
97. A point in a two dimensional state of strain is subjected to pure shearing strain of magnitude
Yxy radians. Which one of the following is the maximum principal strain ?
a) Yxy
b)Yxy/√2
c) Yxy/2
d) 2Yxy
98.
Consider the Mohr's circle shown above :
What is the state of stress represented by this circle ?
a)σx= σy (not equal to ) 0, σxy=0
b) σx=σy=0, σxy (not equal to ) 0
c) σx= 0 σy= σxy (not equal to ) 0
d)σx (not equal to ) 0 , σxy=σy=0
99. What is the relationship between the linear elastic properties Young's modulus (E), rigidity modulus (G) and bulk modulus (K) ?
a) 1/E= (9/K)+ (3/G)
b) 3/E= (9/K)+ (1/G)
c) 9/E= (3/K)+ (1/G)
d) 9/E= (1/K)+ (3/G)
100.
The shearing force diagram for a beam is shown in the above figure. The bending moment diagram is represented by which one of the following ?
(a) (b)
c) d)
101. Match List-I with List-II and select the correct answer using the code given below the lists :
List - II
(Deals with topic)
1. Defelction of beam
2. Eccentrically loaded column
3. Rivetted joints
4. Continuous beam
List -1
(Formula/theorem/method)
A. Clapeyron's
B. Maculary's
C. Perry's
Code:
A B C
a) 3 2 1
b) 4 1 2
c) 4 1 3
d) 2 4 3
102. Which one of the following statements is correct in the case of screw dislocations ?
(b = Burgers Vector; t = Im aginary Vector)
(a) b is perpendicular to t
(b) b is parallel to t
(c) b is inclined to t
(d) b and t are non-coplanar and non-intersecting
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