C:-1/6 and 5/6
D:-1/2 and 1/2
Correct Answer:- Option-A
Question27:-In a stiffness matrix [k] corresponding to a linear elastic system, each stiffness coefficient *k_{ij}* (with usual
notations) is defined as:
A:-Force developed at joint *i* due to unit displacement at joint *j* while all other joints are fixed
-Force developed at joint ‘i+ due to unit displacement at joint *j* while all other joints are released
C:-Displacement occurred at joint ‘i’ due to unit force at joint *j* while all other joints are fixed
D:-Displacement occurred at joint ‘i’ due to unit force at joint *j° while all other joints are released
Correct Answer:- Option-A
Question28:-An undamped single degree of freedom system is represented by the equation: ‘m({d*2 x} /{dt*2}) + kx=0"
with usual notations. If it is given an initial velocity ‘v_O* without any initial displacement, the maximum amplitude of the
resulting free vibration is:
A:-v_0 sqrt{k/m}>
8:- 2 v_O sqrt{k/m}*
v_0 sqrt{m/k}*
0:-` 2 v_O sqrt{m/k}*
Correct Answer:- Option-C
Question29:-In limit state of collapse-flexure, the maximum strain in tension reinforcement in the section at failure shall be
(usual notations apply):
A:-Equal to 0.0035
B:-More than *0.002 + fy’ / (11565:
C:-More than °0.002 +f_y’ / ‘ES’ *
D:-Less than ‘0.002 +f_y’ / ` (1.15 £ 5)` ` `
Correct Answer:- Option-D
Question30:-Select the correct statement with reference to plastic analysis:
A:-Upper bound theorem of plastic collapse is known as static theorem
-At a plastic hinge, all fibers of the section reach yield stress
C:-The collapse mechanism corresponding to a fixed beam has only one plastic hinge
D:-Shape factor of a rectangular section is 4/3
Correct Answer:- Option-B
Question31:-If bulk density of a soil sample is *"18 KN/m*3"* and its water content is 20% then corresponding dry density
Is

A:-*"13 KN/m*3"*
8:- "14 (64/77 3/7
C:"15 KN/m*3""
D:-""16 KN/m*3""

Correct Answer:- Option-C
Question32:-Equation for "A-line" in the plasticity chart is given by (“"I_p"* = plasticity index, *"w_L"*= Liquid limit)

As "Lp = wl”

B:-"|_p = 0.73 (w_L- 20)"

௦11 = 0.85 (w_L- 20)""

0: =w_L- 30"

Correct Answer:- Option-B
Question33:-''Hydrometer" is used in

A:-Triaxial shear test

B:-Consolidation test

C:-Permeability test

D:-Sieve analysis

Correct Answer:- Option-D
Question34:-The critical hydraulic gradient for a certain soil, with specific gravity 2.72 and voids ratio 0.72, will be

0ھ
1
1.2-:

0:-1.3

Correct Answer:- Option-A
Question35:-CBR Test is used for design of

A:-Permanent ways

B:-Flexible pavements

C:-Rigid pavements