Mechanical Engineering MCQs

2075 MCQs  (Page 139 of 208)

Attempt Mechanical Engineering Mcqs Quiz
Which of the following is mostly used used as blast furnace fuel for extracting pig iron from iron ores?
A. Brown coal
B. Anthracite coal
C. Hard coke
D. Woodchar coal
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The hydraulic turbines are also known as : ___________?
A. Steam turbines
B. Water turbines
C. Combustion turbines
D. Gas turbines
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Which of the following solid fuel has high caloric value : ___________?
A. Wood
B. Peat
C. Bituminous coal
D. Anthracite coal
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Which of the following solid fuel has high carbon content?
A. Coke
B. Coal
C. Peat
D. None of these
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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
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The natural solid fuels are : ________?
A. Wood
B. Peat
C. Lignite
D. All of above
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The average calorific value of wood is about : __________?
A. 33500 kj/kg
B. 25000 kj/kg
C. 23000 kj/kg
D. 19700 kj/kg
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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
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Diesel Cycle is also known as : __________?
A. Constant temperature cycle
B. Constant volume cycle
C. Constant pressure cycle
D. All of above
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Atmospheric pressure is equal to____________?
A. 1.013 bar
B. 760mm of hg
C. 101.3kn/m2
D. All of these
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Word of the Day
28 Sep
Expatriate
a person who lives outside their native country.
ملک بدری، جلا وطن کرن، شہر بدر کرنا

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