A. direct combustion
B. fermentation
C. both A and B
D. none of these
Related Mcqs:
- The simplest type of rectification known as half wave rectification is obtained by____________________?
A. using a transistor
B. suppressing the harmonics in A.C voltage
C. suppressing half wave of A.C supply by using diode
D. using a Coolidge tube - Electrical energy is converted to heat at the rate of___________________?
A. IRt
B. I2R
C. I2Rt
D. VIt - In which process all the heat supplied is converted into work done ?
A. isothermal
B. isochoric
C. isobaric
D. isentropic - Work done by variable force is determine by dividing____________________?
A. force into small interval
B. displacement into small interval
C. both force and displacement into small intervals
D. force into small and displacement into large intervals - The escape velocity form the earth surface in km S-1 is____________________?
A. 4.2 km S-1
B. 7.5 km S-1
C. 9.5 km S-1
D. 1.1 km S-1 - The dot product of force and velocity is__________________?
A. power
B. work
C. impulse
D. torque - Work done on the body equals to the _____________________?
A. change in its K.E always
B. change in its P.E always
C. change in its K.E and change in its P.E
D. neither change in K.E and nor change in its P.E - Work has the dimension as that of same as that of__________________?
A. torque
B. angular momentum
C. linear momentum
D. power - Geothermal energy is a _______________________ source of energy?
A. non-renewable
B. stable
C. renewable
D. none of the above - Force 100N is applied on a wire produces extension 5mm in it. Energy stored in it is
A. 0.125 J
B. 0.250 J
C. 0.50 J
D. 1 JSubmitted by: Huzaifa Naseer