Related Questions

According to Regnault's law, the specific heat at constant pressure (cp) and specific heat at constant volume (cv) _________ with the change in pressure and temperature of the gas.
A Change
B Do not change
C Both (A) and (B)
D None of these
Bernoulli equation deals with the law of conservation of
A Mass
B Momentum
C Energy
D Work
The Navier-Stokes equation deals with the law of conservation of
A Mass
B Energy
C Both A and B
D Momentum
গরম বাতাসে পরিপূর্ণ M ভরের একটি বেলুন (থ্রডি সহ) পৃথিবীর দিকে খুব ত্বরণ a তে নেমে আসছে। ঝুড়ি থেকে কি পরিমান m ভর ফেলে দিলে বেলুনটি উপরের দিকে একই খুব ত্বরন a- তে উঠে যাবে ? সকল ক্ষেত্রে বেলুনটির আয়তন একই ছিল বলে ধরে নেওয়া হলো। (g = অভিকর্ষীয় ত্বরন)(A hot air balloon with a bucket is descending towards the earth with a constant acceleration a. The combined mass of the balloon and bucket is M. What mass m from the bucket should be released so that the balloon starts ascending up with the same acceleration a? Consider the volume of the balloon remains constant at all the time. (g=acceleration due to gravity))
A m=2ag+aM
B m=g+a2M
C m=2ag M
D m=M2a(g+a)
E m=ag+M
The ratio of the actual mass of water vapour in a unit mass of dry air to the mass of water vapour in the same mass of dry air when it is saturated at the same temperature and pressure, is called
A Humidity ratio
B Relative humidity
C Absolute humidity
D Degree of saturation
In MS-Excel , the summation of the cells D1, D2, D3, D4, D5 equates -
A = SUM ( D1 : D2 : D3 : D4 : D5 )
B = SUM ( D1 : D5 )
C = SUM ( D1 ; D5 )
D = ( DI : D5 )
Which of the following summation operations is performed on the bits to check an error-detecting code?
A Codec
B Coder-decoder
C Checksum
D Attenuation
E Broadband and baseband refer to the different frequencies at which infrared operates then transmitting signals in certain conditions
Which of the following summation operation is performed on the bits to check an error-detecting code?
A Codec
B Coder-decoder
C Checksum
D Attenuation
E None of the above
Heat transfer efficiency leading of energy conservation in a heat exchanger can be achieved by
A Keeping the heat transfer surface clean
B Enhancing the fluid pumping rate
C Increasing the tube length
D None of these
The ratio of specific heat at constant pressure (cp) and specific heat at constant volume (cv) is
A Equal to one
B Less than one
C Greater than one
D None of these

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