ExamSpark Class 12 Economics

Mock Test 05 Performance Solutions

Subject: CBSE Class 12 Economics (NCERT Full-Syllabus Practice)

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Detailed Question Analysis

Q1. Which of the following is considered a leakage in the circular flow of income?

Correct Answer: Option D (Savings)

Concept Explanation: Savings reduce current consumption expenditure from the income flow and are therefore treated as leakages.

Q2. In the long run, all costs are:

Correct Answer: Option B (Variable)

Concept Explanation: In the long run, firms can change all factors of production. Therefore, all costs become variable.

Q3. Which of the following correctly defines inflation?

Correct Answer: Option B (Continuous rise in general price level)

Concept Explanation: Inflation refers to a sustained increase in the overall price level of goods and services in an economy.

Q4. Which of the following is a capital receipt in the government budget?

Correct Answer: Option C (Recovery of loans)

Concept Explanation: Recovery of loans reduces government assets and is classified as a capital receipt.

Q5. If Average Product is rising, then Marginal Product will be:

Correct Answer: Option C (Greater than Average Product)

Concept Explanation: Average Product rises when Marginal Product exceeds Average Product.

Q6. A rise in the price of mobile phones leads consumers to buy fewer phone covers. Mobile phones and phone covers are:

Correct Answer: Option C (Complementary goods)

Concept Explanation: Complementary goods are used together. Lower demand for phones reduces demand for covers.

Q7. A bank creates additional credit of \(\mathrm{Rs.\ 90,000}\) when the initial deposit is \(\mathrm{Rs.\ 1,00,000}\) and reserve ratio is 10\(\%\). The total deposits created in the banking system will be:

Correct Answer: Option C (\(\mathrm{Rs.\ 10,00,000}\))

Concept Explanation: \(\mathrm{Credit\ Multiplier}=\frac{1}{\mathrm{Reserve\ Ratio}}\) Multiplier = 1 / 0.1 = 10 Total deposits = 1,00,000 \(\times\) 10 = \(\mathrm{Rs.\ 10,00,000}\).

Q8. Which of the following will shift the supply curve of a commodity to the right?

Correct Answer: Option C (Improvement in technology)

Concept Explanation: Improved technology reduces production cost and increases supply, shifting the supply curve rightward.

Q9. A consumer spends entire additional income on consumption. In this case, \(\mathrm{MPC}\) will be:

Correct Answer: Option C (1)

Concept Explanation: If all additional income is consumed, marginal propensity to consume equals 1.

Q10. Which of the following is an example of autonomous consumption?

Correct Answer: Option B (Consumption even at zero income)

Concept Explanation: Autonomous consumption occurs even when income is zero, often financed through savings or borrowing.

Q11. Assertion (A): Under monopolistic competition, firms sell differentiated products. Reason (R): Firms under monopolistic competition face a downward-sloping demand curve.

Correct Answer: Option A (Both A and R are true, and R is the correct explanation of A)

Concept Explanation: Product differentiation gives firms some market power, causing demand curves to slope downward.

Q12. Assertion (A): An increase in \(\mathrm{CRR}\) reduces money supply in the economy. Reason (R): Commercial banks can lend a smaller proportion of deposits.

Correct Answer: Option A (Both A and R are true, and R is the correct explanation of A)

Concept Explanation: Higher \(\mathrm{CRR}\) forces banks to keep more reserves with RBI, reducing lending and money creation.

Q13. Read the following case carefully: The government launches a large rural employment programme during an economic slowdown. Workers employed under the programme spend their incomes on goods and services. Which concept best explains the rise in national income?

Correct Answer: Option B (Multiplier effect)

Concept Explanation: Government spending raises income and consumption, creating successive rounds of income generation through the multiplier effect.

Q14. Read the passage carefully: India's exports of software services increased significantly due to global demand. As a result, foreign exchange earnings rose sharply. Which component of Balance of Payments is directly affected?

Correct Answer: Option B (Current account only)

Concept Explanation: Exports of services are recorded in the current account of Balance of Payments.

Q15. A producer notices that after employing the sixth worker, total output rises from 240 units to 250 units. Marginal Product of the sixth worker is:

Correct Answer: Option C (10 units)

Concept Explanation: Marginal Product = Change in Total Product = 250 - 240 = 10 units.

Q16. Which of the following situations reflects deficient demand?

Correct Answer: Option C (Aggregate demand is less than aggregate supply)

Concept Explanation: Deficient demand occurs when aggregate demand is insufficient to purchase the economy's output at full employment.

Q17. A country experiences continuous rise in imports of luxury goods. Which is the most likely effect?

Correct Answer: Option C (Deterioration in current account balance)

Concept Explanation: Higher imports increase outflow of foreign exchange and may worsen the current account balance.

Q18. In a perfectly competitive market, if market price is \(\mathrm{Rs.\ 15}\) and minimum AVC is \(\mathrm{Rs.\ 18,}\) the firm should:

Correct Answer: Option C (Shut down production in the short run)

Concept Explanation: When price falls below minimum AVC, the firm cannot recover variable costs and should shut down.

Q19. If investment increases by \(\mathrm{Rs.\ 400\ crore}\) and \(\mathrm{MPC}\) = 0.75, the increase in equilibrium income will be:

Correct Answer: Option D (\(\mathrm{Rs.\ 1,600\ crore}\))

Concept Explanation: \(k=\frac{1}{1-\mathrm{MPC}}\) Multiplier = 1 / (1 - 0.75) = 4 Increase in income = 4 \(\times\) 400 = \(\mathrm{Rs.\ 1,600\ crore}\).

Q20. Which of the following best explains the central problem "for whom to produce"?

Correct Answer: Option C (Distribution of goods and services among people)

Concept Explanation: The problem "for whom to produce" concerns distribution of national output among different sections of society.

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