Quiz Questions

15. Heat Temperature and Pressure (ITISKILL7502WU)

Question 1 1 Marks
What is the boiling point of mercury?
A
357 Degree C
B
280 Degree C
C
759 Degree C
D
767 Degree C
Question 2 1 Marks
What is called if the length of the solid expands when heated?
A
Linear expansion
B
Superficial expansion
C
Cubical expansion
D
Area expansion
Question 3 1 Marks
What is the freezing point of water in kelvin scale (K)?
A
373 Degree K
B
313 Degree K
C
303 Degree K
D
273 Degree K
Question 4 1 Marks
What is the change in length per unit original length per degree rise in temperature is called?
A
Co-efficient of friction
B
Co-efficient of linear expansion
C
Co-efficient of superficial expansion
D
Co-efficient of cubical expansion
Question 5 1 Marks
Which one is the radiation method of heat transmission?
A
An iron rod is heated with one of its end and heat transmitted to other end
B
Cold water goes to the bottom from top while on heating the water
C
On heating gases, heat transmitted to surroundings
D
The heat from sun travels through the space
Question 6 1 Marks
At what temperature will Fahrenheit and centigrade thermometers give the same reading?
A
-38 Degree C
B
-39 Degree C
C
-40 Degree C
D
-41 Degree C
Question 7 1 Marks
Which one is a poor heat insulator?
A
Glass
B
Cork
C
Rubber
D
Saw dust
Question 8 1 Marks
What is term called for 3 x linear expansion?
A
Co-efficient of friction
B
Co-efficient of linear expansion
C
Co-efficient of superficial expansion
D
Co-efficient of cubical expansion
Question 9 1 Marks
Which instrument is used to measure temperatures of red hot metals up to 3000 Degree C?
A
Radiation pyrometer
B
Thermoelectric pyrometer
C
Bimetal thermometer
D
Alcohol thermometer
Question 10 1 Marks
What is the unit of co-efficient of linear expansion?
A
Number / Degree C
B
Number / Degree C / meter length
C
Number / Degree C / mm length
D
Number / Degree C / cm length
Question 11 1 Marks
What is the boiling point of water in fahrenheit scale?
A
212 Degree F
B
180 Degree F
C
112 Degree F
D
100 Degree F
Question 12 1 Marks
What is the quantity of heat required to raise the temperature of 1 gram of water through 1 Degree Centigrade is called?
A
Specific heat
B
Colorie
C
British thermal unit
D
Centigrade heat unit
Question 13 1 Marks
What is the value for specific heat of water
A
4
B
3
C
2
D
1
Question 14 1 Marks
Which one of the following is not a property of heat insulating material?
A
Low conductivity
B
Resistance to fire
C
Less moisture absorption
D
Ductility
Question 15 1 Marks
What is the equivalent pascal value for 1 bar?
A
105 pascal
B
107 pascal
C
103 pascal
D
109 pascal
Question 16 1 Marks
What is the SI unit of pressure?
A
Joule
B
Pascal
C
Bar
D
Newton
Question 17 1 Marks
How much quantity of heat is required to raise the temperature of 300 grams of copper (sp.heat 0.092 cal/gram) from 25 Degree C to 75 Degree C in Kcal?
A
138 Kcal
B
1.38 Kcal
C
207 Kcal
D
2.07 Kcal
Question 18 1 Marks
What is the boiling point of water?
A
0 Degree C
B
32 Degree C
C
100 Degree C
D
212 Degree C
Question 19 1 Marks
Which type of heat transmission takes place through physical contact?
A
Conduction
B
Convection
C
Radiation
D
Reflection
Question 20 1 Marks
What is the S.I unit of heat?
A
Calorie
B
Joule
C
Centigrade heat unit
D
British thermal unit
Question 21 1 Marks
Which kind of heat transmission takes places by up-ward flow?
A
Conduction
B
Convection
C
Radiation
D
Reflection
Question 22 1 Marks
Which one is heat insulator?
A
Thermocole
B
Copper
C
Brass
D
Aluminium
Question 23 1 Marks
What is term used for 2 x linear expansion?
A
Co-efficient of friction
B
Co-efficient of linear expansion
C
Co-efficient of superficial expansion
D
Co-efficient of cubical expansion
Question 24 1 Marks
Which one has the highest thermal conductivity?
A
Solid ice
B
Melting ice
C
Water
D
Steam
Question 25 1 Marks
Which type heat is the heat absorbed or given off by a substance without changing its physical state?
A
Latent heat
B
Sensible heat
C
Specific heat
D
Latent heat of steam
Question 26 1 Marks
What is called for the amount of heat required to raise the temperature of unit mass of a substance through 1 Degree C?
A
Sensible heat
B
Latent heat
C
Specific heat
D
Mixing of heat
Question 27 1 Marks
Which insulating material is most widely used in refrigerators?
A
Thermocole
B
Polyurethane
C
Glass wool
D
Cork sheet
Question 28 1 Marks
What is the melting point of aluminium?
A
660 Degree C
B
680 Degree C
C
670 Degree C
D
620 Degree C
Question 29 1 Marks
What is the boiling point of aluminium?
A
1897 Degree C
B
2519 Degree C
C
2469 Degree C
D
660 Degree C
Question 30 1 Marks
What is the ratio of force (or) thrust per unit area?
A
Work
B
Power
C
Pressure
D
Energy
Question 31 1 Marks
Calculate the amount of heat required to raise the temperature of 85.5 gm of sand from 20 Degree C to 35 Degree C specific heat of sand = 0.1.
A
128.25 Joules
B
125.28 Joules
C
128.26 Joules
D
126.28 Joules
Question 32 1 Marks
What is the maximum temperature that can be measured by mercury thermometer?
A
400 Degree C
B
300 Degree C
C
200 Degree C
D
100 Degree C
Question 33 1 Marks
How much heat is absorbed by a copper ingot weighing 400 Kg is heated from 40 Degree C to 72 Degree C for the purpose of forging? (sp.heat of copper is 0.09)
A
1521 Kcal
B
1251 Kcal
C
1152 Kcal
D
1215 Kcal
Question 34 1 Marks
What is known for the temperature at which any solid melts into liquid?
A
Boiling point
B
Melting point
C
Latent heat of fusion
D
Latent heat of vaporisation
Question 35 1 Marks
What is the melting point of mercury?
A
-357 Degree C
B
-209 Degree C
C
-7.1 Degree C
D
-38.72 Degree C
Question 36 1 Marks
Convert - 273 Degree C (Centigrade) into kelvin scale?
A
0 Degree K
B
1 Degree K
C
2 Degree K
D
3 Degree K
Question 37 1 Marks
What is the value in degree centigrade for 20 Degree F?
A
-6.37 Degree C
B
-6.47 Degree C
C
-6.57 Degree C
D
-6.67 Degree C
Question 38 1 Marks
Which instrument is used to measure heat?
A
Calorie meter
B
Thermometer
C
Pyrometer
D
Barometer
Question 39 1 Marks
Convert 45 Degree C (Centigrade) into Degree F (Fahrenheit)
A
110 Degree F
B
111 Degree F
C
112 Degree F
D
113 Degree F
Question 40 1 Marks
How much quantity of heat is required?
<br>
m = 120 litres
<br>
t1 = 20 Degree C
<br>
t2 = 85 Degree C
<br>
S = 4.2
<br>
Q = _____ KJ
A
32750 KJ
B
32760 KJ
C
32770 KJ
D
32780 KJ
Question 41 1 Marks
What is the specific heat of the material if we require 510 calories to raise the temperature of 170 gm of material from 50 Degree C to 80 Degree C?
A
0.1
B
0.01
C
1.1
D
1.11
Question 42 1 Marks
What is called for the materials that restricts heat flow by radiation, conduction and convection?
A
Conductors
B
Insulators
C
Ferrous
D
Non-ferrous
Question 43 1 Marks
Which refers the temperature?
A
It is a form of energy
B
It tells the state of heat
C
It tells specifie heat of substance
D
It is measured by calorie meter
Question 44 1 Marks
What is the co-efficient of linear expansion of a rod if it is found to be 100 m long at 20 Degree C and 100.14 m long at 100 Degree C?
A
1.75 x 10-4 / Degree C
B
1.75 x 10-5 / Degree C
C
1.75 x 10-6 / Degree C
D
1.75 x 10-7 / Degree C