# Multiple choice question for engineering

## Set 1

1. The quantity of solute per unit volume is __________

a) Mole

b) Concentration

c) Density

d) None of the mentioned

### View Answer

2. Find the correct statement for ppm

a) For solids and liquids, it is mole ratio

b) For gases, it is mole ratio

c) It is mole ration for every phase of matter

d) It is mass ratio for every phase of matter

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3. The concentration of 0.02 M H2SO4 molecules in a solution where the ionization of H2SO4 is 30%.

a) 0.014

b) 0.003

c) 0.002

d) 0.005

### View Answer

4. What is the weight fraction of N2 in a gas when it is liquefied? The gas contains 400 ppm of N2 in CO2.

a) 2.54×10-4

b) 3.54×10-4

c) 4.54×10-4

d) 5.54×10-4

### View Answer

5. A student has two solution of a substance. Solution-1: 25M, 400mL and Solution-2: 30M, 300M. What is the molarity of the final solutions if these two solutions are mixed?

a) 27.14

b) 22.14

c) 14.22

d) 14.27

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6. What is the total hardness of water in mg/L if the concentration of Ca and Mg are 56.7 mg/L and 9.8 mg/L?

a) 182.1

b) 66.5

c) 133

d) 91.05

### View Answer

7. What is the concentration of 36 grams of water occupying 1 m3 volume?

a) 1 mole / m3

b) 2 mole / m3

c) 11 mole / m3

d) 22 mole / m3

### View Answer

8. What is the concentration (% m/v) of the solution that contains 20.0 g NaCl in 800.0 mL solution?

a) 5.00%

b) 2.00%

c) 0.200%

d) 2.50%

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9. What is the ppm concentration of 6.00 mL sample of solution that has 3.6 x 10-4 g of sodium ions?

a) 20

b) 40

c) 60

d) 80

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10. How many mL of 2.50% (m/v) NaOH solution would contain 3.50 g of NaOH?

a) 7

b) 14

c) 21

d) 28

### View Answer

## Set 2

1. The quantity of solute per unit volume is __________

a) Mole

b) Concentration

c) Density

d) None of the mentioned

### View Answer

2. Find the correct statement for ppm

a) For solids and liquids, it is mole ratio

b) For gases, it is mole ratio

c) It is mole ration for every phase of matter

d) It is mass ratio for every phase of matter

### View Answer

3. The concentration of 0.02 M H2SO4 molecules in a solution where the ionization of H2SO4 is 30%.

a) 0.014

b) 0.003

c) 0.002

d) 0.005

### View Answer

4. What is the weight fraction of N2 in a gas when it is liquefied? The gas contains 400 ppm of N2 in CO2.

a) 2.54×10-4

b) 3.54×10-4

c) 4.54×10-4

d) 5.54×10-4

### View Answer

5. A student has two solution of a substance. Solution-1: 25M, 400mL and Solution-2: 30M, 300M. What is the molarity of the final solutions if these two solutions are mixed?

a) 27.14

b) 22.14

c) 14.22

d) 14.27

### View Answer

6. What is the total hardness of water in mg/L if the concentration of Ca and Mg are 56.7 mg/L and 9.8 mg/L?

a) 182.1

b) 66.5

c) 133

d) 91.05

### View Answer

7. What is the concentration of 36 grams of water occupying 1 m3 volume?

a) 1 mole / m3

b) 2 mole / m3

c) 11 mole / m3

d) 22 mole / m3

### View Answer

8. What is the concentration (% m/v) of the solution that contains 20.0 g NaCl in 800.0 mL solution?

a) 5.00%

b) 2.00%

c) 0.200%

d) 2.50%

### View Answer

9. What is the ppm concentration of 6.00 mL sample of solution that has 3.6 x 10-4 g of sodium ions?

a) 20

b) 40

c) 60

d) 80

### View Answer

10. How many mL of 2.50% (m/v) NaOH solution would contain 3.50 g of NaOH?

a) 7

b) 14

c) 21

d) 28

### View Answer

## Set 3

1. ________ is the change of vapour in a non-condensable gas.

a) Saturation

b) Vaporization

c) Condensation

d) None of the mentioned

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2. In a condensation process, _______ to _________

a) Gas, Solid

b) Gas, Liquid

c) Liquid, Gas

d) Liquid, Solid

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3. When vapour is cooled at constant total system volume, the _______ changes.

a) Volume

b) Pressure

c) Temperature

d) None of the mentioned

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4. When vapour is compressed isothermally the ____________ changes.

a) Volume

b) Pressure

c) Temperature

d) None of the mentioned

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5. Condensation starts ________ point.

a) Dew point

b) Bubble point

c) Triple point

d) None of the mentioned

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6. When gas changes to liquid through the process of condensation, the temperature

a) Increases

b) Decreases

c) Remains constant

d) None of the mentioned

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7. When the vapour is condensed at constant system pressure, the pressure changes.

a) Correct statement

b) Incorrect statement

c) Can`t say anything

d) None of the mentioned

### View Answer

8. If the fraction of water vapour at 127 Degree Celsius and 1 atm is 0.5, what is the fraction of water vapour at 27 Degree C and 1 atm?

a) 0.275

b) 0.375

c) 0.475

d) 0.875

### View Answer

9. Leonard set up the experiment shown below.

9. Correct statement is/are

A: Steam is formed when water boils.

B: water vapour loses heat during condensation.

a) Both A and B

b) Neither A nor B

c) Only A

d) Only B

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10. Water changes into water vapour only when boiling occurs. The statement is

a) Correct

b) Incorrect

c) Always correct

d) None of the mentioned

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## Set 4

1. __________ are statements of equivalent values of different units in the form of ratios.

a) Fraction factor

b) Conversion factor

c) Expand factor

d) None of the mentioned

### View Answer

2. Which one is an incorrect conversion

a) 1 inch = 2.54 cm

b) 1 mile = 5280 ft.

c) 1 ft. = 12 inch

d) None of the mentioned

### View Answer

3. A car is travelling with a speed of 550 ft/sec. How fast it is going in miles per hour?

a) 375

b) 750

c) 900

d) 1800

### View Answer

4. 30 (in)(cm2)/(yr)(s)(lbm)(ft2) to all SI units.

a) 5.72×10-11

b) 4.76×10-12

c) 8.73×10-11

d) 4.45×10-12

### View Answer

5. Oil is flowing through a 4 in.-diameter pipe having a velocity of 6 ft/sec. The flow rate gallon per minute and kinetic energy of water in (ft)(lbf)/lbm are respectively?

a) 469.92 and 1.12

b) 352.44 and 0.84

c) 234.96 and 0.56

d) 117.48 and 0.28

### View Answer

6. What is the potential energy of a box in (ft)(lbf), kept on a wall having a height 20 ft above the surface? Assume that the mass of the box is 100 lb.

a) 1000

b) 2000

c) 3000

d) 4000

### View Answer

7. What is the value of 200 ft3/min in mile3/day?

a) 0.95×10-6

b) 1.95×10-6

c) 0.95×106

d) 1.95×106

### View Answer

8. 1.5 nm. is equal to

a) 1.5*10^-8 dm

b) 0.15 Angstrom

c) 5.9*10^-10 in

d) All of the mentioned

### View Answer

9. Acceleration of gravity in AE system is equal to

a) 0.32174 ft/s2

b) 3.2174 ft/s2

c) 32.174 ft/s2

d) 321.74 ft/s2

### View Answer

10. Fundamental unit for the length in metric system is

a) cm

b) m

c) in

d) yd

### View Answer

## Set 5

1. __________ are statements of equivalent values of different units in the form of ratios.

a) Fraction factor

b) Conversion factor

c) Expand factor

d) None of the mentioned

### View Answer

2. Which one is an incorrect conversion

a) 1 inch = 2.54 cm

b) 1 mile = 5280 ft.

c) 1 ft. = 12 inch

d) None of the mentioned

### View Answer

3. A car is travelling with a speed of 550 ft/sec. How fast it is going in miles per hour?

a) 375

b) 750

c) 900

d) 1800

### View Answer

4. 30 (in)(cm2)/(yr)(s)(lbm)(ft2) to all SI units.

a) 5.72×10-11

b) 4.76×10-12

c) 8.73×10-11

d) 4.45×10-12

### View Answer

5. Oil is flowing through a 4 in.-diameter pipe having a velocity of 6 ft/sec. The flow rate gallon per minute and kinetic energy of water in (ft)(lbf)/lbm are respectively?

a) 469.92 and 1.12

b) 352.44 and 0.84

c) 234.96 and 0.56

d) 117.48 and 0.28

### View Answer

6. What is the potential energy of a box in (ft)(lbf), kept on a wall having a height 20 ft above the surface? Assume that the mass of the box is 100 lb.

a) 1000

b) 2000

c) 3000

d) 4000

### View Answer

7. What is the value of 200 ft3/min in mile3/day?

a) 0.95×10-6

b) 1.95×10-6

c) 0.95×106

d) 1.95×106

### View Answer

8. 1.5 nm. is equal to

a) 1.5*10^-8 dm

b) 0.15 Angstrom

c) 5.9*10^-10 in

d) All of the mentioned

### View Answer

9. Acceleration of gravity in AE system is equal to

a) 0.32174 ft/s2

b) 3.2174 ft/s2

c) 32.174 ft/s2

d) 321.74 ft/s2

### View Answer

10. Fundamental unit for the length in metric system is

a) cm

b) m

c) in

d) yd