Mcqs

Thermal Engineering Mcqs

Our 1000+ Thermal Engineering MCQ (Multiple Choice Questions and Answers) focus on all areas of Thermal Engineering covering 100+ topics. These topics are chosen from a collection of the most authoritative and best reference books on Thermal Engineering. One should spend 1 hour daily practicing these MCQs for 2-3 months to learn and assimilate the Thermal Engineering subject comprehensively. This way of systematic learning will prepare anyone easily for Thermal Engineering exams, contests, online tests, quizzes, MCQ-tests, viva-voce, interviews, and certifications.

 

Thermal Engineering Multiple Choice Questions Highlights

  • 1000+ Multiple Choice Questions & Answers (MCQs) in Thermal Engineering with a detailed explanation of every question.
  • These MCQs cover theoretical concepts, true-false(T/F) statements, fill-in-the-blanks, and match the following style statements.
  • These MCQs also cover numerical as well as diagram-oriented MCQs.
  • These MCQs are organized chapterwise and each Chapter is further organized topicwise.
  • Every MCQ set focuses on a specific topic of a given Chapter in Thermal Engineering Subject.

 

Who should Practice Thermal Engineering MCQs?

  • Students who are preparing for college tests and exams such as mid-term tests and semester tests on Thermal Engineering.
  • Students who are preparing for Online/Offline Tests/Contests in Thermal Engineering.
  • Students who wish to sharpen their knowledge of the Thermal Engineering Subject.
  • Anyone preparing for Aptitude test in Thermal Engineering.
  • Anyone preparing for interviews (campus/off-campus interviews, walk-in interviews, and company interviews).
  • Anyone preparing for entrance examinations and other competitive examinations.
  • All - Experienced, Freshers and College / School Students.
Latest Popular
Q:

Which of the following function is not performed by the expansion device?

A) It reduces the high pressure liquid refrigerant to low pressure liquid refrigerant B) It maintains the desired pressure difference between the high and low pressure sides of the system
C) It controls the flow of refrigerant according to the load on the evaporator D) It compresses the vapor
 
Answer & Explanation Answer: D) It compresses the vapor

Explanation: The expansion device performs the following functions, it reduces the high pressure liquid refrigerant to low pressure liquid refrigerant, it maintains the desired pressure difference between the high and low pressure sides of the system and It controls the flow of refrigerant according to the load on the evaporator.

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Category: Mechanical Engineering MCQs
Sub Category: Thermal Engineering Mcqs

88
Q:

The device which divides the high pressure side and the low pressure side of a refrigerating system is known as _____________

A) condenser device B) evaporator device
C) receiver device D) expansion device
 
Answer & Explanation Answer: D) expansion device

Explanation: The expansion device is an important device that divides the high pressure side and the low pressure side of a refrigerating system. It is also known as metering device or throttling device.

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Category: Mechanical Engineering MCQs
Sub Category: Thermal Engineering Mcqs

80
Q:

Finned evaporators are also known as prime surface evaporators.

A) False B) True
 
Answer & Explanation Answer: A) False

Explanation: Finned evaporators are the ones which use a number of fins to increase the contact surface for heat transfer. The specifications of fins depend on the required heat transfer rate. As fins are the extended material used for heat transfer enhancement so, finned evaporators are also called as extended surface evaporators whereas, bare tube coil evaporators are called as prime surface evaporators.

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Category: Mechanical Engineering MCQs
Sub Category: Thermal Engineering Mcqs

80
Q:

Which type of evaporator is generally used to cool drinking water?

A) Shell and tube evaporator B) Finned evaporator
C) Shell and coil evaporator D) Plate evaporator
 
Answer & Explanation Answer: C) Shell and coil evaporator

Explanation: The shell and coil evaporators are the dry expansion evaporators used to chill water. The shell may be sealed or open. If the shell is sealed, then it is used for cooling drinking water.

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Category: Mechanical Engineering MCQs
Sub Category: Thermal Engineering Mcqs

79
Q:

Which type of evaporator is used in household refrigerators?

A) frosting evaporator B) defrosting evaporator
C) non-frosting evaporator D) non-corrosive evaporator
 
Answer & Explanation Answer: A) frosting evaporator

Explanation: Evaporators used in household refrigerators, low-temperature evaporators, and bare pipe coils in storage boxes come under frosting type. These operate at temperature always below 0°C. Coils frost continuously and need to be defrosted at regular interval of time.

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Category: Mechanical Engineering MCQs
Sub Category: Thermal Engineering Mcqs

130
Q:

Which type of evaporator is generally used for wine cooling and chilling oil in the petroleum industry?

A) Tube-in-tube evaporator B) Finned evaporator
C) Shell and tube evaporator D) Plate evaporator
 
Answer & Explanation Answer: A) Tube-in-tube evaporator

Explanation: Tube-in-tube evaporators are used for wine cooling and chilling oil in the petroleum industry. In this type of evaporator, one tube is inside another tube. It provides a high heat transfer rate.

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Category: Mechanical Engineering MCQs
Sub Category: Thermal Engineering Mcqs

90
Q:

Which type of evaporator is generally used in home freezers, ice cream cabinets, etc?

A) Shell and coil evaporator B) Finned evaporator
C) Shell and tube evaporator D) Plate evaporator
 
Answer & Explanation Answer: D) Plate evaporator

Explanation: Plate evaporators are generally used in home freezers, ice cream cabinets, beverage coolers, and locker plants, etc. In this type of evaporator, coils are either welded on one side of the plate or between two plates which are welded together at the edges.

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Category: Mechanical Engineering MCQs
Sub Category: Thermal Engineering Mcqs

81
Q:

The bare tube evaporators are called as _______ evaporators.

A) extended surface B) bare surface
C) pipe surface D) prime surface
 
Answer & Explanation Answer: D) prime surface

Explanation: The bare tube evaporators are also known as prime surface evaporators due to the simple construction of it. The bare tube coil is easy to clean and defrost; hence, it is called prime surface evaporator.

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Category: Mechanical Engineering MCQs
Sub Category: Thermal Engineering Mcqs

146