# Profit Maximizing Under Perfect Competition & Monopoly Mcqs - Set 3

1)   A firm will shut down in the short run if ?

a. fixed costs exceed revenues.
b. it is suffering a loss.
c. variable costs exceed revenues
d. total costs exceed revenues
 Answer  Explanation ANSWER: variable costs exceed revenues Explanation: No explanation is available for this question!

2)   A firm in perfectly competitive industry is producing 50 units, its profit-maximising quantity. Industry price is £2 and total fixed costs and total variable cost are £25 and £40 respectively. The firm’s economic profit is ?

a. £35
b. £15
c. £30
d. £60
 Answer  Explanation ANSWER: £35 Explanation: No explanation is available for this question!

3)   The formula for average variable cost (AVC) is ?

a. DTVC/Dq
b. DTVC/Dq
c. Dq/DTVC
d. TVC/q
 Answer  Explanation ANSWER: TVC/q Explanation: No explanation is available for this question!

4)   A graph showing all the combinations capital and labor available for a given total cost is the ?

a. expenditure set
b. isocost line.
c. budget constraint
d. isoquant
 Answer  Explanation ANSWER: isocost line. Explanation: No explanation is available for this question!

5)   A graph showing all the combinations of capital and labor that can used to produce a given amount of output is ?

a. an indifference curves.
b. an isoquant.
c. an isocost line
d. a production functions
 Answer  Explanation ANSWER: an isoquant. Explanation: No explanation is available for this question!

6)   Suppose Handel’s Ice Cream experiences economies of scale up to a certain point and diseconomies of scale beyond that point. Its long-run average cost curve is most likely to be ?

a. downward sloping to the right
b. U-shaped
c. Horizontal
d. upward sloping to the right
 Answer  Explanation ANSWER: U-shaped Explanation: No explanation is available for this question!

7)   If the total product of two workers is 80 and the total product of 3 workers is 90 then the average product of the third worker is ________ and the marginal product of the third worker is _________?

a. 160; 270
b. 10; 30
c. 10; 3.33
d. 30; 10
 Answer  Explanation ANSWER: 30; 10 Explanation: No explanation is available for this question!

8)   Diminishing marginal return implies ?

a. decreasing average fixed costs.
b. decreasing marginal costs.
c. decreasing average variable costs.
d. increasing marginal costs.
 Answer  Explanation ANSWER: increasing marginal costs. Explanation: No explanation is available for this question!

9)   The costs that depend on output in the short run are ?

a. total fixed cost only.
b. total variable costs only.
c. both total variable costs and total costs.
d. total costs only
 Answer  Explanation ANSWER: both total variable costs and total costs. Explanation: No explanation is available for this question!

10)   Which statement is False ?

a. Fixed costs are zero if the firms is producing nothing.
b. Fixed costs are the difference between total costs and total variable costs
c. There are no fixed costs in the long run
d. Fixed costs do not depend on the firm’s level of output
 Answer  Explanation ANSWER: Fixed costs are zero if the firms is producing nothing. Explanation: No explanation is available for this question!