JOIN ADRE 2.0 Telegram Group

Strength of Materials Quiz | Strength of Materials Objective Type Questions and Answers

Questions
21 The stress necessary to initiate yielding is
A considerably greater than that necessary to continue it
B considerably lesser than that necessary to continue it
C greater than that necessary to stop it
D lesser than that necessary to stop it

Answer: considerably greater than that necessary to continue it
22 In a tensile test, near the elastic limit zone, the
A tensile strain increases more quickly
B tensile strain decreases more quickly
C tensile strain increases in proportion to the stress
D tensile strain decreases in proportion to the stress

Answer: tensile strain increases more quickly
Advertisement
Article and Schedule Quiz Start Test!

DOWNLOAD CURRENT AFFAIRS PDF FROM APP

23 If a material expands freely due to heating it will develop
A thermal stresses
B tensile stress
C bending
D no stress

Answer: no stress
24 The percentage reduction in area of a cast iron specimen during tensile test would be of the order of
A more than 50%
B 25—50%
C 25—50%
D negligible

Answer: negligible
25 The change in the unit volume of a material under tension with increase in its Poisson’s ratio will ,
A increase
B decrease
C remain same
D increase initially and then decrease

Answer: decrease
26 The property of a material by virtue of which it can be beaten or rolled into plates is called
A malleability
B ductility
C plasticity
D elasticity

Answer: malleability
27 For which material the Poisson’s ratio is more than unity
A steel
B copper
C aluminium
D none of the above

Answer: none of the above
28 Poisson’s ratio is defined as the ratio of
A longitudinal stress and longitudinal strain
B longitudinal stress and lateral stress
C lateral stress and longitudinal stress
D lateral stress and lateral strain

Answer: lateral stress and longitudinal stress
29 The property of a material which allows it to be drawn into a smaller section is called
A plasticity
B ductility
C elasticity
D malleability

Answer: ductility
30 The value of Poisson’s ratio for cast iron is
A 0.1 to 0.2
B 0.23 to 0.27
C 0.25 to 0.33
D 0.4 to 0.6

Answer: 0.23 to 0.27
31 The materials which exhibit the same elastic properties in all directions are called
A homogeneous
B inelastic
C isotropic
D isentropic

Answer: isotropic
32 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 malleability

Answer: elasticity
33 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 one-fourth of weight of bar applied at lower end

Answer: half the weight of bar applied at lower end
34 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, area of cross-section and modulus of elasticity

Answer: slenderness ratio, area of cross-section and modulus of elasticity
35 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 0.4 to 0.6

Answer: 0.25 to 0.33
36 Which of the following materials is most elastic
A rubber
B plastic
C brass
D steel

Answer: steel
37 If a part is constrained to move and heated, it will develop
A principal stress
B tensile stress
C compressive stress
D shear stress

Answer: compressive stress
38 In a tensile test on mild steel specimen, the breaking stress as compared to ultimate tensile stress is
A more
B less
C same
D may have any value

Answer: less
39 Which is the false statement about true stress-strain method
A It does not exist
B It is more sensitive to changes in both metallurgical and mechanical conditions
C It gives, a more accurate picture of the ductility
D It can be used for compression tests as well

Answer: It does not exist
40 In the tensile test, the phenomenon of slow extension of the material, i. e. stress increasing with the time at a constant load is called
A creeping
B yielding
C breaking
D plasticity

Answer: creeping

ADRE 2.0 FULL LENGTH MOCK TEST

Take Mock Tests

Missiles Mock Test Start Test!
SSC MTS Mock Test Start Test
IBPS CLERK MOCK TEST Start Test
SSC MTS 2022 JULY 26 Shift 1 (ENGLISH) Start Test!
SSC GD Previous Year Paper 2021 Nov 17 Shift - I (Hindi) Start Test!
SSC CGL Tier - 1 PYP 2022 April 21 Shift- 1 (ENGLISH) Start Test!
MPSC PAPER I MOCK TEST 1 (ENGLISH) Start Test!
IB Security Assistant Mock test 1 (english) Start Test!
UP POLICE CONSTABLE MOCK TEST 1 Start Test!
DELHI POLICE CONSTABLE MOCK TEST 1 (HINDI) Start Test!
Advertisement
Assam Direct Recruitment Test Series