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## Mock Exam B (1): BMAT Section 2

*27 Questions, 30 Minutes*

## Question 1

*Which of the following statements describes the characteristics of nerves and hormones correctly?*

*A. Nerves are fast, short term, precise, and initiate electrical signals, while hormones are slow, long term, have general target, and initiate chemical signals.*

*B. Nerves are fast, long term, precise, and initiate chemical signals, while hormones are slow, short term, have general target, and initiate electrical signals.*

*C. Nerves are fast, short term, have general target, and initiate electrical signals, while hormones are slow, short term, have precise target, and initiate chemical signals.*

*D. Nerves are slow, short term, have precise target, and initiate electrical signals, while hormones are fast, long term, have general target, and initiate chemical signals.*

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Question 2 and 3

*2) This garden decoration consists of a full cylinder (including the 2 bases) and a circular disc. The circular disc has a radius of r, each of the cylinders bases has a radius of r/3 , and the cylinder has height of 4r. What is the total area of this decoration?*

*3) If one tin of paint coats an area of 2r*²

*once, how many tins of paint will you need to buy to coat the whole decoration twice?*

*A. 6.1*

*B. 7*

*C. 12.2*

*D. 13*

Question 4

*Silver iodide reacts with iron (III) carbonate to form iron (III) iodide and silver carbonate.*

*What are the values of*

A. 1, 1, 1, 1

B. 6, 1, 2, 3

C. 2, 1, 2, 1

D. 6, 1, 3, 2

**a**,**b**,**c**and**d**?A. 1, 1, 1, 1

B. 6, 1, 2, 3

C. 2, 1, 2, 1

D. 6, 1, 3, 2

Question 5

*The graph of xy = 3 does not exist for which value of x?*

*A. x = 3*

*B. x = y*

*C. x = 0*

*D. The graph exists for all values of x*

Question 6

*An object, initially at rest, is acted upon by a constant force. Which pair of graphs shows the variation of speed and kinetic energy of the object with time?*

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Question 7

*Which of the following statements describe mitosis and meiosis the best?*

*Both of mitosis and meiosis have interphase.**Daughter cells produced through both mitosis and meiosis are genetically identical to the parent cell.**Both meiosis and mitosis take place in asexual reproduction**Comparing the number of cells produced, 4 rounds of mitosis produce the same number of cells as two events of meiosis.*

*A. 1 and 3*

*B. 2 and 3*

*C. 1 and 4*

*D. 3 and 4*

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Question 8

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Question 9

*An ore of iron contains 68% FeS₂. Calculate the mass of ore required to produce 100 kg of iron.*

Assume the extraction efficiency is 100%. (Ar: Fe=56; S=32)

A. 68 kg

B. 147 kg

C. 214 kg

D. 315 kg

Assume the extraction efficiency is 100%. (Ar: Fe=56; S=32)

A. 68 kg

B. 147 kg

C. 214 kg

D. 315 kg

Question 10

*Which of the following statements describe the number of cycles that pass a point per second?*

*A. The speed of electromagnetic waves but not sound wave.*

*B. The wavelength of any type of waves, and it is measured in Hertz.*

*C. The frequency of a wave, and it is the reciprocal of period.*

*D. The amplitude of a wave, and it does not have units.*

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Question 11

*The area of a rectangular patio is 16 squared units. One length is x cm long, and the other is 3x + 8 cm long. Calculate the value of x.*

*A. -4*

*B. -4, 4 / 3*

*C. 4 / 3*

*D. 4*

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Question 12

*The following chemicals are mixed together. In which of the mixtures will a displacement reaction occur?*

*A. 2 only*

*B. 2 and 3 only*

*C. 3 and 4 only*

*D. 1 and 2 only*

*E. 1, 2 and 4 only*

*F. 2, 3 and 4 only*

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Question 13

*Which of the following statements is/are correct?*

*Mitosis is cell division for gamete formation, with a haploid number of chromosomes that are genetically different to the parent cells**Mitosis is the cell division for repair and growth, with a diploid number of chromosomes that are identical to the parent cells**Meiosis is the cell division for gamete formation, with a haploid number of chromosomes that are genetically different to the parent cells**Meiosis produces 2 daughter cells**Mitosis produces 2 daughter cells*

*A. 1,2,3*

*B. 3,4,5*

*C. 1,5*

*D. 2,3,5*

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Question 14

*The area of a rectangular patio is found to be 12x² - 4x - 8 , where x is an arbitrary unit. Which of the following are possible dimensions of the patio?*

A. (3x-2)(4x-4)

B. (4x+2)(3x-4)

C. (3x+2)(4x-4)

D. (6x-2)(2x-4)

A. (3x-2)(4x-4)

B. (4x+2)(3x-4)

C. (3x+2)(4x-4)

D. (6x-2)(2x-4)

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Question 15

*Which of the following describes the ultrasound range ?*

*A. They are traverse waves with a frequency of 30 Hz*

*B. They are sound waves with a frequency of 300 Hz*

*C. They have a frequency of 3000 Hz, and humans can hear it.*

*D. They are longitudinal waves with a frequency of 30,000 Hz*

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Question 16

*How many moles of oxygen will be produced if 6 moles of potassium permanganate are decomposed?*

*A. 6*

*B. 2*

*C. 4*

*D. 3*

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Question 17

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Question 18

*A compound of nitrogen and oxygen contains 36.4g of nitrogen and 20.8g of oxygen. Which of the following would be its formula? (Ar: N = 14, O = 16)*

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Question 19

*The area of a rectangular patio is found to be 6x²-13x-63 , where x is an arbitrary unit. Which of the following are possible dimensions of the patio?*

A. (2x+9)(3x-7)

B. (2x-9)(3x+7)

C. (3x-9)(2x+7)

D. (3x+9)(2x-7)

A. (2x+9)(3x-7)

B. (2x-9)(3x+7)

C. (3x-9)(2x+7)

D. (3x+9)(2x-7)

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Question 20

*The graph below shows the variation of acceleration with time for an object. What physical quantity can be deduced from this graph and how is this calculated ?*

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Question 21

*1.82 g of butan-1-ol is reacted with excess hydrogen bromide to produce 1.50 g of 1-bromobutane according to the following equation:*

*What is the percentage yield of the reaction?*

(Ar : H=1; C = 12; O = 16; Br = 80)

(Ar : H=1; C = 12; O = 16; Br = 80)

*A. 24.6%*

*B. 44.5%*

*C. 72.5%*

*D. 82.4%*

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Question 22

*A linear sequence can be described in terms of n by the following expression:*

9(n+7)+12

What would be the 1th, 3th and 1200th term of this sequence respectively

A. 84, 102, 10875

B. 84, 102, 10868

C. 84, 98, 1207

D. 28, 102, 1075

9(n+7)+12

What would be the 1th, 3th and 1200th term of this sequence respectively

A. 84, 102, 10875

B. 84, 102, 10868

C. 84, 98, 1207

D. 28, 102, 1075

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Question 23

*Which of the following statements about stem cells are correct?*

*Adult stem cells are more able to differentiate than embryonic stem cells**Stem cells can be found in the bone marrow**Stem cells found in embryos are able to form any type of cell*

*A. 1,2*

*B. 1,3*

*C. 2,3*

*D. All are correct*

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Question 24

*Nitrogen monoxide can be prepared from copper and dilute nitric acid.*

*Choose the correct state symbols for the above reaction from the following table.*

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Question 25 and 26

*A D.C. supply has to be connected across coil X.**An A.C. supply has to be connected across coil X.**Number of turns in coil Y > number of turns in coil X.**Number of turns in coil Y < number of turns in coil X.**The microammeter will show a steady deflection.**The microammeter will show a changing deflection.*

*A. 2 and 4*

*B. 2, 4 and 6*

*C. 3, 4 and 6*

*D. 3 and 6*

*The transformer is described as 100% efficient. What does this mean?*

A. The current in Y must equal the current in X

A. The current in Y must equal the current in X

*B. The voltage across Y must equal the voltage across X*

*C. The resistance of Y must equal the resistance of X*

*D. There is no magnetic field passing through the soft-iron core*

*E. The power in Y must equal the power in X.*

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Question 27

*The area of a rectangular patio is 9 squared units. One length is x cm long and the other is 2x + 3 cm long. Calculate the value of x.*

A. 3 / 2

B. -3

C. 3

D. -3, 3 / 2

A. 3 / 2

B. -3

C. 3

D. -3, 3 / 2