B:-x-2y+7=0
1-0
D:-x-y =0
Correct Answer:- Option-B
Question77:-The minimum value of the function f(x) = *3x*(4)-2x*(3)-6x*(2)+6x+1° in the interval (0, 2) is
‏ا‎
‎B:-4
‎0
‎D:-2
‎Correct Answer:- Option-D
Question78:-If *x*(2) + 2xy + y*(2)=0" , then ‘dy/dx* is equal to
A:--2
B:-x + 2y
சேர்‌
D:-2x + 2y
Correct Answer:- Option-C
Question79:-* int’x(logx) dx is equal to
A:-logx *(x*(2))/(2)+x%(2)/4+C* , C is constant
B:-logx *(x*(2))/(2)-x*(2)/4+C> , C is constant
C-logx *(x*(2))/(2)-x*(3)/4+C° , C is constant
D:-logx *(x*(3))2)-x*(2)/4+C° , C is constant
Correct Answer:- Option-B
Question80:-Solution of the differential equation ‘sec*(2)x tanydx+sec*(2)ytanx dy =0° is of the form
A:-tanx tany = ‏ع‎
‎B:-secx tany = ¢
C:-cotx coty = ¢
D:-secy tanx = c
Correct Answer:- Option-A
Question81:-The type of cement suitable for massive constructions like dams is
A--acid resistant cement
B:-low heat cement
C:-sulphur resistant cement
D:-ordinary Portland cement
Correct Answer:- Option-B
Question82:-The type of rubble masonry in which prismatic shaped stones are used is
A:-Random rubble masonry
B:-Polygonal masonry
C:-Ashlar masonry
D:-Dry rubble masonry
Correct Answer:- Option-C
Question83:-The instrument used for measuring distance is
A:-electronic theodolite
B:-stereoscope
C:-wye level
D:-distomat
Correct Answer:- Option-D
Question84:-Which among the following is the best suited foundation for a building if the foundation covers more than 50 %
of the area of the building and if the soil is weak
A:-Spread foundation
B:-Raft foundation
C:-Combined footing
D:-Column footing
Correct Answer:- Option-B
Question85:-Optical square is the instrument used for
A:-setting 90°
B:-ranging of line
C:-leveling
D:-finding magnetic north
Correct Answer:- Option-A