Mechanical Engineering MCQs

2075 MCQs  (Page 155 of 208)

Attempt Mechanical Engineering Mcqs Quiz
The diameter of cylindrical shell of the Lancashire boiler is of the order of__________________?
A. 1 tp 1.25m
B. 1 to 1.75 m
C. 2 to 4 m
D. 1.75 to 2.75 m
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Which of the following substance will have same percentage in both proximate and ultimate analysis___________________?
A. Ash
B. Volatile matter
C. Mositure
D. Hydrogen
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Lancashire boiler is of____________________?
A. stationary<fire tube-type
B. horizontal type
C. natural cirulation type
D. internally fired type
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Steam engine operates on_________________?
A. Carnot cycle
B. Joule cycle
C. Stirling cycle
D. Brayton cycle
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Water tube boilers are those in which________________?
A. Flue gases pass through tubes and water around it
B. Water passes through the tubes and flue gases around it
C. Work is done during adiabatic expansion
D. Change in enthalpy
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The lenght of Cornish boiler is of the order of _________________?
A. 2-4 m
B. 3-5 m
C. 5-7.5 m
D. 7-9 m
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Which of the following gases has the highest calorific value ________________?
A. Producer gas
B. Coal gas
C. Water gas
D. Blast furnace gas
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For burning 1 kg of carbon to CO as per chemically correct combusiton, amount of air required is___________________?
A. 1 kg
B. 4/3kg
C. 8/3kg
D. 2 kg
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Efficiency of rankine cycle can be increased by_________________?
A. Decreasing initial steam pressure and temperature
B. Increasing exhaust pressure
C. Decreasing exhaust pressure
D. Increasing the expansion ratio
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Efficiency of a thermal cycle increases by ________________?
A. Regeneration
B. Reheating of steam
C. Both a. and b.
D. Cooling of steam
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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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