A.4?2?
B.12?2?
C.24?2?
D.16?2?
Related Mcqs:
- The pressure within a soap bubble is
- The rate of radiant energy, which is emitted by a surface at any temperature and in small wavelength is found from the known rate of energy, which under the same condition would be emitted from a black surface by multiplying with the absorptivity. Above enunciation is known as
- The rate of radiant energy, which is emitted by a surface at any temperature and in small wavelengths is found from the known rate of energy, which under the same conditions would be emitted from a black surface, by multiplying with the absorptivity. Above enunciation is known as
- A screw jack has 4 threads per inch. The mean radius of the thread is 2.338 inches. The mean diameter of the bearing surface under the cap is 3.25 inches. What is the turning moment required to raise the bload of 150 kg (
- A sphere 15 cm in diameter is covered with 5 cm of insulation (k = 0.057 kcal/m-hr-?C). The inside and outside surface temperature of the insulation are 315?C and 80?C respectively. The heat loss per sq. m of the outside surface will be closer to
- _______ absorbs energy which is transferred to the atmosphere from the earth’s surface and maintains temperature for life:
- Surface tension has the dimensionss
- Surface tension of water in contact with air at 20?C is
- The coefficient of friction between pulley and belt is reduced to half. If the initial ratio of tension in belt is 5, then the new value will be
- Surface tension is due to
