A. of same magnitude as that of bar and applied at the lower end
B. half the weight of bar applied at lower end
C. half of the square of weight of bar applied at lower end
D. one-fourth of weight of bar applied at lower end
E. none of the above
Related Mcqs:
- The ratio of elongation in a prismatic bar due to its own weight (W) as compared to another similar bar carrying an additional weight (W) will be _________________?
A. 1:2
B. 1 : 3
C. 1 : 4
D. 1 : 2.5
E. 1 : 2.25 - The deformation of a bar under its own weight compared to the deformation of same body subjected to a direct load equal to weight of the body is_______________?
A. same
B. double
C. half
D. four times
E. one-fourth - The M.I. of hollow circular section about a central axis perpendicular to section as compared to its M.I. about horizontal axis is________________?
A. same
B. double
C. half
D. four times
E. one fourth - Which of the following is the locus of a point that moves in such a manner that its distance from a fixed point is equal to its distance from a fixed line multiplied by a constant greater than one_______________?
A. ellipse
B. hyperbola
C. parabola
D. circle
E. none of the above - It equal and opposite forces applied to a body tend to elongate it, the stress so produced is called______________________?
A. internal resistanpe
B. tensile stress
C. transverse stress
D. compressive stress
E. working stress - The ratio of direct stress to volumetric strain in case of a body subjected to three mutually perpendicular stresses of equal intensity, is equal to___________________?
A. Young’s modulus
B. bulk modulus
C. modulus of rigidity
D. modulus of elasticity
E. Poisson’s ratio - The weakest section of a diamond riveting is the section which passes through ___________________?
A. the first row
B. the second row
C. the central row
D. one rivet hole of the end row
E. none of the above - During a tensile test on a specimen of 1 cm cross-section, maximum load observed was 8 tonnes and area of cross-section at neck was 0.5 cm2. Ultimate tensile strength of specimen is___________________?
A. 4 tonnes/cm2
B. 8 tonnes/cm2
C. 16 tonnes/cm2
D. 22 tonnes/cm2
E. none of the above - A flywheel on a motor goes from rest to 1000 rpm in 6 sec. The number of revolutions made is nearly equal to_________________?
A. 25
B. 50
C. 100
D. 250
E. 500 - The effort required to lift a load W on a screw jack with helix angle a and angle of friction <j) is equal to__________________?
A. Wtan(a + )
B. Wtan(a-)
C. Wcos(a + )
D. Wsin(a + )
E. W (sin a + cos ).
