6861. N.T.P. corresponds to

By Admin / September 7, 2025

1 atm.absolute pressure& 0°C

760 mm Hg gauge pressure & 0°C

760 torr & 15°C

101.325 KPa gauge pressure & 0°C

✅ The correct answer is option A.

6858. 1 kg of calcium carbide (CaC₂) produces about 0.41 kg of acetylene gas on treatment with water. How many hours of service can be derived from 1 kg of calcium carbide in an acetylene lamp burning 35 litres of gas at NTP per hour?

6864. In case of a solution (not of a solid in a liquid), whose total volume is more than the sum of volumes of its components in their pure states, solubility is

1. A fire tube boiler is limited to a maximum steam pressure of about __________ kg/cm².

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2. Transformer cores are normally made from

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