Deck 11: Temperature and Temperature-Related Variables in Engineering

Question 1

Convert to Kelvins.
________ K

Answer 1

310.15

Question 2

What does T stand for in the following equation? $P V = m R T$

A) Time
B) Period
C) Torque
D) Temperature

Answer 2

Temperature

Question 3

The temperature in this room is $72 ^ { \circ } \mathrm { F }$ . The temperature outside the building is $20 ^ { \circ } \mathrm { F }$ . What is the temperature difference in Kelvins?

A) 52K
B) 11K
C) 20K
D) 29K

Answer 3

29K

Question 4

Temperature is a fundamental dimension.

Question 5

The physical quantity that provides a measure of molecular activity and the internal energy of an object is

A) density.
B) temperature.
C) viscosity.
D) specific weight.

Question 6

Convert to Kelvins.
________°

Question 7

Thermometers use varying physical properties to measure temperature. Which of the following variable physical properties are utilized in thermometers?

A) density
B) electrical resistance
C) color
D) all of the above

Question 8

What does P stand for in the following equation? $P V = m R T$

A) Pounds
B) Pressure
C) Power
D) Permeability

Question 9

What does V stand for in the following equation? $P V = m R T$

A) Volume
B) Velocity
C) Voltage
D) Viscosity

Question 10

Convert to Celsius.
________ °

Question 11

Which of the following temperature scales is known as an absolute scale?

A) Fahrenheit
B) Celsius
C) Centigrade
D) Kelvin

Question 12

Which of the following temperature scales is known as a relative scale?

A) Fahrenheit
B) Rankine
C) Kelvin
D) None of the above

Question 13

Temperature is a macroscopic measurement of a microscopic phenomenon.

Question 14

A temperature-measuring device that consists of two dissimilar metals is known as a

A) Thermocouple.
B) Thermistor.
C) Thermojunction.
D) RTD.

Question 15

When using the ideal gas law, $P V = m R T$ , what system of units should you use when entering temperature values?

A) Fahrenheit
B) Celsius
C) Kelvin
D) any of the above

Question 16

A temperature-measuring device composed of a semiconductor material is known as a

A) Thermocouple.
B) Thermistor.
C) Thermojunction.
D) RTD.

Question 17

Convert to Fahrenheit.
________ °

Question 18

The physical quantity that quantifies or provides a measure of how active molecules are on a microscopic level is

A) density.
B) temperature.
C) viscosity.
D) specific weight.

Question 19

The temperature in this room is . The temperature outside the building is . What is the temperature difference in degrees Celsius?

Question 20

Which of the following material properties varies with temperature?

A) density
B) viscosity
C) electrical resistance
D) all of the above

Question 21

The physical measurement that is intended to account for the combined effect of wind speed and air temperature is known as

A) dew point.
B) ambient conditions.
C) wind chill index.
B) relative temperature.

Question 22

A unit that is generally used to express the insulating value of clothing is called

Question 23

When you touch a hot stove with your finger you get burned by the heat transferred to your finger. What mode of heat transfer is responsible for this?

A) conduction.
B) convection.
C) radiation.
D) none of the above.

Question 24

A $1 ^ { \circ }$ temperature difference in Celsius is equal to a $1 ^ { \circ }$ temperature difference in Kelvin.

Question 25

In general, as the temperature of a material is increased, the material's volume will

A) increase.
B) decrease.
C) remain the same.

Question 26

A $1 ^ { \circ }$ temperature difference in Celsius is equal to a $1 ^ { \circ }$ temperature difference in Fahrenheit.

Question 27

A unit commonly used to express the metabolic rate for an average person under sedentary conditions is called

Question 28

Which of the following is NOT a mode of heat transfer?

A) transposition
B) convection
C) radiation
D) conduction

Question 29

The amount of heat required to raise the temperature of 1g of water by $1 ^ { \circ } \mathrm { C }$ is known as a

A) Btu.
B) calorie.
C) Calorie.
D) Joule.

Question 30

What is the SI unit of energy?

A) calorie
B) Watt
C) Btu
D) Joule

Question 31

Before taking a bite of a piece of hot pizza you blow on it to cool it off by transferring heat out of the pizza. What mode of heat transfer is responsible for this?

A) conduction
B) convection
C) radiation
D) none of the above

Question 32

The mode of heat transfer that occurs through electromagnetic waves is known as

A) conduction.
B) convection.
C) radiation.
D) none of the above.

Question 33

The mode of heat transfer that occurs when a fluid in motion comes into contact with a solid surface whose temperature differs from the moving fluid is known as

A) conduction.
B) convection.
C) radiation.
D) none of the above.

Question 34

What does Btu stand for?

A) British temperature unit
B) British thermal unit
C) Binomial theorem utility
D) Binary temperature unit

Question 35

The mode of heat transfer that occurs when a temperature difference exists in a medium is known as

A) conduction.
B) convection.
C) radiation.
D) none of the above.

Question 36

In general, as the temperature of a material is increased, the material's length will

A) increase.
B) decrease.
C) remain the same.

Question 37

On its own, heat flows from hot objects to cold objects.

Question 38

If you stay out too long at the beach you may get a sunburn as a result of too much heat being transferred to your skin. What mode of heat transfer is responsible for this?

A) conduction
B) convection
C) radiation
D) none of the above

Question 39

On its own, temperature flows from hot objects to cold objects.

Question 40

The amount of heat required to raise the temperature of $1 l b _ { m }$ of water by $1 ^ { \circ } \mathrm { F }$ is known as a

A) Btu.
B) calorie.
C) Calorie.
D) Joule.

Question 41

The energy released by fuel when the combustion by-products include water in liquid form is known as the

A) higher heating value.
B) lower heating value.
C) all of the above
D) none of the above

Question 42

A simple procedure commonly used to estimate monthly and annual energy consumptions to heat a building is

A) degree days.
B) heating days.
C) temperature days.
D) energy days.

Question 43

The energy released by fuel when the combustion by-products include water in vapor form is known as the

A) higher heating value.
B) lower heating value.
C) all of the above
D) none of the above

Question 44

The physical quantity that provides a quantitative way to show how much thermal energy is required to raise the temperature of an object by a certain amount is

A) thermal conductivity.
B) specific heat.
C) specific weight.
D) density.

Question 45

The term that is used to quantify the amount of energy that is released when a unit mass or a unit volume of fuel is burned is known as

A) heating value.
B) specific heat.
C) specific mass.
D) specific volume.