Thermophilic micro-organism grow well at temperature– 1) 10°C – 20°C 2) 20°C – 40°C 3) 50°C – 60°C 4) 5°C – 7°C Last Answer : 3) 50°C – 60°C...
Which of the following are optimum temperature conditions for making benzenediazonium chloride from aniline? (a) 0°C to 10°C (b) 20°C to 25°C (c) 30°C to 40°C (d) 45°C to 50°C Last Answer : 0°C to 10°C...
Lumirhodopsin is stable only at a temperature below (A) –35°C (B) –40°C (C) –45°C (D) –50°C Last Answer : Answer : D...
Fats are solids at (A) 10°C (B) 20°C (C) 30°C (D) 40°C Last Answer : Answer : B...
Date growth does not cease if temperature does not fall below: a. 0°C. b. 10°C c. 18°C d. 20°C Last Answer : 18°C...
Last Answer : If a D.C. motor designed for 40°C ambient temperature is to be used for 50°C ambient temperature, then the motor is to be derated by a factor recommended by manufacturer and select the next higher H.P. motor. ...
The life expectancy of electrical insulation, is approximately halved for an increased operating temperature of _______________. A. 10°C B. 25°C C. 50°C D. 100°C Last Answer : Answer: A...
One litre of water at 30°C is mixed with one litre of water at 50°C. Then temperature of mixture will be : (a) 80°C (b) More than 50°C but less than 80°C’ (c) 20°C (d) Between 30°C and 50°C
It is given that the rate of loss of heat by a substance, at any temperature, is proportional to the difference between that temperature and the temperature of the surroundings. A solid, of mass 80g, is made from a material ... \(\frac{(log5-log3)}{(log3)}\) (4) \(\frac{(log7-log5)}{(log5-log3)}\)
Hot water (0.01 m3 /min) enters the tube side of a counter current shell and tube heat exchanger at 80°C and leaves at 50°C. Cold oil (0.05 m3 /min) of density 800 kg/m3 and specific heat of ... mean temperature difference in °C is approximately (A) 32 (B) 37 (C) 45 (D) 50 Last Answer : (A) 32 ...
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