A. 6° to 20°
B. 220° to 345°
C. 65° to 220°
D. 15° to 120°
Mechanical Engineering Mcqs
Which of the following are used in diesel engines and oil fired boilers :
A. Paraffin
B. Gasoline
C. Heavy fuel oils
d) Patrol
The hydraulic turbines are also known as : ___________?
A. steam turbines
B. water turbines
C. combustion turbines
D. Gas turbines
Which of the following solid fuel has high caloric value : ___________?
A. Wood
B. Peat
C. Bituminous coal
D. Anthracite coal
The average calorific value of wood is about : __________?
A. 33500 kj/kg
B. 25000 kj/kg
C. 23000 kj/kg
D. 19700 kj/kg
The natural solid fuels are : ________?
A. Wood
B. Peat
C. Lignite
D. All of above
The efficiency of the ideal diesel cycle is ________ than that of Otto cycle, for the same compression ratio
A. Higher
B. Lower
C. Equal
D. None of these
Diesel Cycle is also known as : __________?
A. Constant temperature cycle
B. Constant Volume cycle
C. Constant Pressure Cycle
D. All of above
What is the weight (in lbf) of one gallon of air at 1 atm and 25˚C? The molecular mass of air is 28.97 g/mole = 0.02897 kg/mole
A. 90 lbf
B. 65.78 lbf
C. 0.00989 lbf
D. 3.00989 lbf
Farad is the unit of___________?
A. inductance
B. voltage
C. capacitance
D. None of these
Farad, unit of electrical capacitance (ability to hold an electric charge), in the metre–kilogram–second system of physical units, named in honour of the English scientist Michael Faraday. The capacitance of a capacitor is one farad when one coulomb of electricity changes the potential between the plates by one volt.