Why does the sky appear blue in colour
The function of AC dynamo is
Which one of the following equation is used to convert observed time into normal time in time study ?
Ratio of tensile strengths of woven and non-woven fabrics of GSM same would be
The circular weft knitting machine that rotates in clockwise direction demands 'z' twist yarn that 's' twist yarn because 'z' twist yarn
The Pressley index is the ratio between