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Home » GAT Subject » Aptitude Test - 49
Hassan
1. Modulus of rigidity is defined as the ratio of
A. longitudinal stress and longitudinal strain
B. volumetric stress and volumetric strain
C. lateral stress and lateral strain
D. longitudinal stress and longitudinal strain
2.Tensile strength of a material is obtained by dividing the maximum load during the test by the
A. area at the time of fracture
B. original cross-sectional area
C. average of (a) and (b)
D. area at the time of fracture
3.The Young's modulus of a wire is defined as the stress which will increase the length of wire compared to its original length
A. half
B. same amount
C. double
D. half
4.Percentage reduction of area in performing tensile test on cast iron may be of the order of
A. 50%
B. 25%
C. 0%
D. 50%
5. The intensity of stress which causes unit strain is called
A. unit stress
B. bulk modulus
C. modulus of rigidity
D. unit stress
6. During a tensile test on a specimen of 1 cm cross-section, maximum load observed was 8 tonnes and area of cross-section at neck was 0.5 cm2. Ultimate tensile strength of specimen is
A. 4 tonnes/cm2
B. 8 tonnes/cm2
C. 16 tonnes/cm2
D. 4 tonnes/cm2
7.For steel, the ultimate strength in shear as compared to in tension is nearly
A. same
B. half
C. one-third
D. same
8. If a part is constrained to move and heated, it will develop
A. principal stress
B. tensile stress
C. compressive stress
D. principal stress
9.The value of modulus of elasticity for mild steel is of the order of
A. 2.1xl05 kg/cm2
B. 2.1 X 106 kg/cm2
C. 2.1 x 107 kg/cm2
D. 2.1xl05 kg/cm2
10. The value of Poisson's ratio for steel is between
A. 0.01 to 0.1
B. 0.23 to 0.27
C. 0.25 to 0.33
D. 0.01 to 0.1
11.The buckling load for a given material depends on
A. slenderness ratio and area of cross-section
B. Poisson's ratio and modulus of elasticity
C. slenderness ratio and modulus of elasticity
D. slenderness ratio and area of cross-section
12.The total elongation produced in a bar of uniform section hanging vertically downwards due to its own weight is equal to that produced by a weight
A. of same magnitude as that of bar and applied at the lower end
B. half the weight of bar applied at lower end
C. half of the square of weight of bar applied at lower end
D. of same magnitude as that of bar and applied at the lower end
13. The property of a material by virtue of which a body returns to its original, shape after removal of the load is called
A. plasticity
B. elasticity
C. ductility
D. plasticity
14.The materials which exhibit the same elastic properties in all directions are called
A. homogeneous
B. inelastic
C. isotropic
D. homogeneous
15.Which of the following goods would you expect to have the largest income elasticity of demand?
A. rice
B. toothpaste
C. beer
D. rice
16.The cross price elasticity between two products is found to be -1/2. From this you know that the two products are
A. normal
B. inferior
C. necessities
D. normal
17.If the cross price elasticity between goods B and A is -2 and the price of good B increases by 5%, the quantity demanded of good A will
A. increase by 5%
B. increase by 10%
C. decrease by 5%
D. increase by 5%
18.Karen's income elasticity of demand for bottles of her favorite wine is 1.5. Currently her income is equal to $50,000 and she normally buys 500 bottles per year (Unless Karen entertains a lot she has
A. 425
B. 425
C. 575
D. 425
19.A firm learns that the own price elasticity of a product it manufactures is 3.5. What would be the correct action for this firm to take if it wishes to raise its total revenue?
A. Raise the price because demand for the product is inelastic
B. Lower the price because demand for the good is elastic
C. We need information on the firm's cost structure in order to answer this question
D. Raise the price because demand for the product is inelastic
20.A monopolist learns that the own price elasticity of a product it manufactures is 0.5. What would be the correct action for this firm to take if it wishes to increase its profits?
A. Raise the price because demand for the product is inelastic
B. Lower the price because demand for the good is elastic
C. We need information on the firm's cost structure in order to answer this question
D. Raise the price because demand for the product is inelastic
21.Cheryl's income elasticity for good A is -2.5. Her current income is $100,000 and she normally buys 100 units of good A per year. If her income increases to $110,000 how many units of good A will she
A. 250
B. 75
C. 125
D. 250
22.After paying an economist to estimate the price elasticity of demand for socks, sock manufacturers, expecting to increase revenues, decide to reduce the price of socks. The estimate of demand elastici
A. .25
B. .75
C. -.75
D. .25
23.If the price elasticity of demand for some good is estimated to be 4. then a 1% increase in price will lead to a:
A. 20% increase in quantity demanded.
B. 0.25% decrease in quantity demanded.
C. 0.5% increase in quantity demanded
D. 20% increase in quantity demanded.
24.If coffee and tea are substitutes, what do we know for certain about the cross-price elasticity of demand for coffee with respect to the price of tea?
A. It is greater than 1
B. It is negative
C. It is positive
D. It is greater than 1
25.If college enrollments drop by 10% when textbook prices double; textbooks and enrollments are __________ goods and their cross price elasticity is __________
A. complementary; -0.5
B. substitute; 5
C. complementary; -0.1
D. complementary; -0.5
26.Kevin's income elasticity for good A is equal to -1.5. His current income is $40,000 per year and he buys 200 units of good A annually. If his income falls to $36,000 how many units of good A will he
A. 230
B. 170
C. 150
D. 230
27.Jane considers tofu a normal good and peanut butter an inferior good. We can predict that with an increase in her income she will consume
A. more of both goods
B. less of both goods
C. more tofu and less peanut butter
D. more of both goods
28.The price elasticity of demand measures
A. the slope of a budget curve.
B. how often the price of a good changes
C. the responsiveness of the quantity demanded to changes in price
D. the slope of a budget curve.
29.When the quantity of coal supplied is measured in kilograms instead of pounds, the demand for
A. more elastic
B. neither more nor less elastic
C. less elastic
D. more elastic
30. If a rightward shift of the supply curve leads to a 6 percent decrease in the price and a 5 percent increase in the quantity demanded, the price elasticity of demand is
A. 0.83
B. 0.30
C. 0.60
D. 0.83
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