MCQ Questions Mechanical Engineering Heat Transfer

Take a look at these MCQ Questions Heat Transfer for engineering interview questions and our tips on how to answer them. If you’re applying for an engineering internship, graduate scheme or entry-level job, you’ll face at least one interview as part of an engineering employer’s recruitment process. You may be interviewed by one or more members of the HR team, senior members of the engineering team you’d be joining or a mixture of both. In this section we will study MCQ Questions Mechanical Engineering Heat Transfer.

As well as questions about your reasons for applying to the role and the employer in question, engineering recruiters will be assessing your potential in the areas that is crucial to any engineering role: technical expertise. Engineers may be asked to perform feats of fantastic technical prowess, but it will be as as part of a Justice League rather than as a solo engineering super hero.

The interviewer is almost as nervous as the candidate in most interviews. You might wonder if you look confident enough, if you will hire the right person, or if you are asking the right engineering interview questions. The last question is arguably the most crucial part to worry about when you’re interviewing candidates.

MCQ Questions Mechanical Engineering Heat Transfer - Set - 2

Question 1:

Thermal conductivity of glass-wool varies from sample to sample because of variation in
(a) composition
(b) density
(c) porosity
(d) structure
(e) all of the above.

Check Answer

Correct Answer – (E)

Question 2 :

Which of the following has least value of conductivity
(a) glass
(b) water
(c) plastic
(d) air.

Check Answer

Correct Answer – (D)

Question 3 :

In heat transfer, conductance equals conductivity (kcal/hr/sqm/°C/cm) divided by
(a) hr (time)
(b) sqm (area)
(c) °C (temperature)
(d) cm (thickness)

Check Answer

Correct Answer – (D)

Question 4 :

Thermal conductivity of air with rise in temperature
(a) increases
(b) decreases
(c) remains constant
(d) may increase or decrease depending on temperature

Check Answer

Correct Answer – (D)

Question 5 :

Thermal conductivity of air at room temperature in kcal/m hr °C is of the order of
(a) 0.002
(b) 0.02
(c) 0.01
(d) 0.1

Check Answer

Correct Answer – (B)

MCQ Questions Mechanical Engineering Heat Transfer

Question 6:

Which of the following is expected to have highest thermal conductivity
(a) steam
(b) solid ice
(c) melting ice
(d) water

Check Answer

Correct Answer – (B)

Question 7:

The amount of heat flow through a body by conduction is
(a) directly proportional to the surface area of the body
(b) directly proportional to the temperature difference on the two faces of the body
(c) dependent upon the material of the body
(d) inversely proportional to the thickness of the body
(e) all of the above.

Check Answer

Correct Answer – (E)

Question 8:

Heat flows from one body to other when they have
(a) different heat contents
(b) different specific heat
(c) different atomic structure
(d) different temperatures

Check Answer

Correct Answer – (D)

Question 9:

The time constant of a thermocouple is
(a) the time taken to attain the final temperature to be measured
(b) the time taken to attain 50% of the value of initial temperature difference
(c) the time taken to attain 63.2% of the value of initial temperature difference
(d) determined by the time taken to reach 100°C from 0°C

Check Answer

Correct Answer – (C)

Question 10:

Temperature of steam at around 540°C can be measured by
(a) thermometer
(b) radiatiouv pyrometer
(c) thermistor
(d) thermocouple

Check Answer

Correct Answer – (D)

MCQ Questions Mechanical Engineering Heat Transfer

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