JOIN ADRE 2.0 Telegram Group

Strength of Materials Quiz | Strength of Materials Multiple Choice Questions and Answers

Questions
1 Which of the following has no unit
A kinematic viscosity
B surface tension
C bulk modulus
D strain

Answer: strain
2 For steel, the ultimate strength in shear as compared to in tension is nearly
A same
B half
C one-third
D two-third

Answer: half
Advertisement
Article and Schedule Quiz Start Test!

DOWNLOAD CURRENT AFFAIRS PDF FROM APP

3 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 none of the mentioned

Answer: 8 tonnes/cm2
4 True stress-strain curve for materials is plotted between
A load/original cross-sectional area and change in length/original length
B load/instantaneous cross-sectional area original area and log.
C load/instantaneous cross-sectional area and change in length/original length
D load/instantaneous area and instantaneous area/original area

Answer: load/instantaneous cross-sectional area original area and log.
5 The intensity of stress which causes unit strain is called
A unit stress
B bulk modulus
C modulus of rigidity
D modulus of elasticity

Answer: modulus of elasticity
6 Percentage reduction of area in performing tensile test on cast iron may be of the order of
A 50%
B 25%
C 0%
D 15%

Answer: 0%
7 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 None of these

Answer: same amount
8 The impact strength of a material is an index of its
A toughness
B tensile strength
C capability of being cold worked
D hardness

Answer: toughness
9 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 minimum area after fracture
D none of the above

Answer: original cross-sectional area
10 The ultimate tensile stress of mild steel compared to ultimate compressive stress is
A same
B more
C less
D unpredictable

Answer: more
11 If the radius of wire stretched by a load is doubled, then its Young’s modulus will be
A doubled
B halved
C become four times
D remain unaffected

Answer: remain unaffected
12 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 shear stress and shear strain

Answer: shear stress and shear strain
13 A thin mild steel wire is loaded by adding loads in equal increments till it breaks. The extensions noted with increasing loads will behave as under
A uniform throughout
B increase uniformly
C first increase and then decrease
D increase uniformly first and then increase rapidly

Answer: increase uniformly first and then increase rapidly
14 The materials having same elastic properties in all directions are called
A ideal materials
B uniform materials
C isotropic materials
D paractical materials

Answer: isotropic materials
15 It equal and opposite forces applied to a body tend to elongate it, the stress so produced is called
A internal resistanpe
B tensile stress
C transverse stress
D compressive stress

Answer: tensile stress
16 Deformation per unit length in the direction of force is known as
A strain
B lateral strain
C linear strain
D linear stress

Answer: linear strain
17 The unit of Young’s modulus is
A kg/cm2
B kg cm2
C mm/mm
D kg

Answer: kg/cm2
18 Young’s modulus is defined as the ratio of
A longitudinal stress and longitudinal strain
B lateral stress and lateral strain
C volumetric stress and volumetric strain
D longitudinal stress and lateral strain.

Answer: longitudinal stress and longitudinal strain
19 Hooke’s law holds good up to
A yield point
B limit of proportionality
C breaking point
D elastic limit

Answer: limit of proportionality
20 Strain is defined as the ratio of
A change in volume to original volume
B change in length to original length
C change in cross-sectional area to original cross-sectional area
D any one of the above

Answer: any one of the above

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