Correct answer
A. dummy
Explanation
The correct answer is dummy.
The resultant of the following three couples 20 kg force, 0.5 m arm, $ ve sense 30 kg force, 1 m arm, – ve sense 40 kg force, 0.25 m arm, + ve sense having arm of 0.5 m will be________?
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________?
Scavenging air in diesel engine means________?
PMTP (predetermined motion time systems) include________?
For a compressor, least work will be done if the compression is________?
Antifriction bearings are________?