Correct answer
C. 250 ppm
Explanation
The correct answer is 250 ppm.
Independent displacement components at each joint of a rigid-jointed plane frame are________?
Minimum composite sleeper index pres-cried on Indian Railways for a track sleeper is________?
A piece weighing 3 kg in air was found to weigh 2.5 kg when submerged in water. Its specific gravity is________?
If 850 kg liquid occupies volume of one cubic meter, men 0.85 represents its________?
Which of the following metamorphic rocks has the most weather resisting characteristics?
Ratio of permissible stress in direct compression and bending compression is________?