The suitable method of forecasting popu¬lation for a young and rapidly increasing city is_________________?
(A) arithmetical increase method
(B) geometrical increase method
(C) incremental increase method
(D) graphical method
Select the correct relationship between porosity (N), specific yield (y) and specific retention (R)________________?
(A) N = y + R
(B) y = N + R
(C) R = N + y
(D) R > (N + y)
Which of the following is not a water borne disease ?
(A) dysentery
(B) cholera
(C) typhoid
(D) maleria
A circular disc rotates at n rpm. The angular velocity of a circular ring of same mass and radius as the disc and to have the same angular momentum is___________________?
(A) n rpm
(B) n/2 rpm
(C) n/4 rpm
(D) 2n rpm
Rate of change of angular momentum is equal to_______________?
(A) force
(B) torque
(C) linear momentum
(D) impulse
A solid sphere of mass M and radius R rolls down a plane inclined at 0 with the horizontal. The acceleration of sphere is_______________?
(A) (1/3) g sin0
(B) (2/5) g sin 0
(C) (3/7) g sin 0
(D) (5/7) g sin0
A hoop of radius 3 m weighs 100 kg. It rolls along a horizontal floor so that at its centre of mass has a speed of 200 mm/sec, . The work required to stop the hoop is______________?
(A) 2 J
(B) 4 J
(C) 6 J
(D) 8 J
The total kinetic energy of a hoop of mass 2 kg and radius 4 m sliding with linear velocity 8 m/sec and angular velocity 5 radian/sec is_________________?
(A) 64 J
(B) 400 J
(C) 464 J
(D) 89 J
Minimum potential energy of a system will be in the position of________________?
(A) stable equilibrium
(B) unstable equilibrium
(C) neutral equilibrium
(D) all of the above
A block in the shape of a parallelopiped of sides lm x 2m x 3m lies on the surface. Which of the faces gives maximum stable block ?
(A) 1 m x 2 m
(B) 2 m x 3 m
(C) 1 m x 3m
(D) equally stable on all faces