Test: Torsion of Shafts - 1 - Mechanical Engineering MCQ

inner radius

outer radius

arithmetic mean radius

geometric mean radius

T/J corresponds to M/I

G/l corresponds to E/R

τ/r corresponds to σ/y

Gθ/l corresponds to E/R

maximum calculated value

minimum calculated value

mean value

all of these depending on loading condition

1

1.5

2

1.67

G J

1/GJ

1/(GJ)²

(GJ)²

from maximum at the center to zero at circumference

from zero at the center to maximum at the circumference

from maximum at the center to minimum at the circumference

from minimum at the center to maximum at the circumference

minimum at the center

maximum at center

uniform throughout

maximum at periphery and zero at center

1/8

1/16

8

16

16:15

15:16

5:6

6:5

if same torque acts in each

if two equal torques (T) are applied in opposite direction at both end

if same shear stress gets developed in each

if they have same torsional rigidity