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Mechanical Engineering

What is the function of safety valves in the boiler?

» Thermal Engineering 2 solved MCQs /
Question:

What is the function of safety valves in the boiler?

A.

to prevent excessive steam pressure

B.

to prevent excessive air pressure

C.

to prevent water pressure

D.

to prevent from rising temperatures

Answer» a. to prevent excessive steam pressure

Note: The above multiple-choice question is for all general and Competitive Exams in India. 

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» Thermal Engineering 2 solved MCQs

What is the function Air heater in the boiler?

» Thermal Engineering 2 solved MCQs /
Question:

What is the function Air heater in the boiler?

A.

preheat the air before entering the boiler

B.

recover the heat from flue gas

C.

heating of economizer tubes

D.

reheat the gas coming out of economizer

Answer» b. recover the heat from flue gas

Note: The above multiple-choice question is for all general and Competitive Exams in India. 

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» Thermal Engineering 2 solved MCQs

Gas flows through the nozzle from an area of pressure (called the chamber) to one of pressure

» Thermal Engineering 2 solved MCQs /
Question:

Gas flows through the nozzle from an area of pressure (called the chamber) to one of pressure

A.

high, low

B.

low, high

C.

same, same

D.

constant, infinite

Answer» a. high, low

Note: The above multiple-choice question is for all general and Competitive Exams in India. 

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» Thermal Engineering 2 solved MCQs

Accuracy of machining is affected by, which of the following factors?

» Unconventional Machine Process (UMP) solved MCQs /
Question:

Accuracy of machining is affected by, which of the following factors?

A.

material

B.

gap voltage

C.

feed rate

D.

all of the mentioned

Answer» d. all of the mentioned

Note: The above multiple-choice question is for all general and Competitive Exams in India. 

Accuracy of machining is affected by, which of the following factors? Read More »

» Unconventional Machine Process (UMP) solved MCQs

Slotting can be performed more effectively by milling machine.

» Process Planning and Cost Estimation solved MCQs /
Question:

Slotting can be performed more effectively by milling machine.

A.

horizontal

B.

vertical

C.

both horizontal and vertical

D.

none of the mentioned

Answer» c. both horizontal and vertical

Note: The above multiple-choice question is for all general and Competitive Exams in India. 

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» Process Planning and Cost Estimation solved MCQs

Rateau turbine is                          

» Thermal Engineering 2 solved MCQs /
Question:

Rateau turbine is                          

A.

pressure-velocity compounded turbine

B.

simple reaction turbine

C.

velocity compounded turbine

D.

pressure compounded turbine

Answer» d. pressure compounded turbine

Note: The above multiple-choice question is for all general and Competitive Exams in India. 

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» Thermal Engineering 2 solved MCQs

Which are the most common electrolytes used in Electrochemical machining?

» Unconventional Machine Process (UMP) solved MCQs /
Question:

Which are the most common electrolytes used in Electrochemical machining?

A.

sodium chloride

B.

sodium nitride

C.

sodium hydroxide

D.

all of the mentioned

Answer» d. all of the mentioned

Note: The above multiple-choice question is for all general and Competitive Exams in India. 

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» Unconventional Machine Process (UMP) solved MCQs

For a compressible, ideal gas, mass flow rate depends on parameters such as flow area, pressure, temperature, properties of the gas, and                    

» Thermal Engineering 2 solved MCQs /
Question:

For a compressible, ideal gas, mass flow rate depends on parameters such as flow area, pressure, temperature, properties of the gas, and                    

A.

avogardo’s number

B.

mach number

C.

reynold’s number

D.

le-grange’ number

Answer» b. mach number

Note: The above multiple-choice question is for all general and Competitive Exams in India. 

For a compressible, ideal gas, mass flow rate depends on parameters such as flow area, pressure, temperature, properties of the gas, and                     Read More »

» Thermal Engineering 2 solved MCQs