5314 + Mcqs in Freshers Page 31 McqOptions

1501.	What leads to the development of MESI and MEI protocol?
A.	cache size
B.	cache coherency
C.	bus snooping
D.	number of caches
Answer» C. bus snooping

Discussion

1502.	Which of the following uses a bus snooping mechanism?
A.	MC88100
B.	8086
C.	8051
D.	80286
Answer» B. 8086

Discussion

1503.	Which of the following is the biggest challenge in the cache memory design?
A.	delay
B.	size
C.	coherency
D.	memory access
Answer» D. memory access

Discussion

1504.	Using of intercooler and reheating process ________ efficiency.
A.	increases
B.	decreases
C.	does not change
D.	none of the mentioned
Answer» B. decreases

Discussion

1505.	Extra cooling can be done by __________
A.	decreasing no of fins
B.	increasing number of fins
C.	spraying mist on inter cooler surface
D.	none of the mentioned
Answer» D. none of the mentioned

Discussion

1506.	Compression with intercooler causes ________
A.	increase in the compressor work
B.	decrease in the compressor work
C.	increases the overall efficiency
D.	none of the mentioned
Answer» C. increases the overall efficiency

Discussion

1507.	In actual gas turbine, mechanical energy is converted into heat by _________
A.	none of the mentioned
B.	frictional losses in compressor
C.	no mechanical energy is converted into heat energy
D.	friction between piston and cylinder
Answer» E.

Discussion

1508.	A gas turbine is called as __________
A.	Expansion turbine
B.	Combustion turbine
C.	Compression turbine
D.	None of the mentioned
Answer» C. Compression turbine

Discussion

1509.	Which of the following gives interference fit?
A.	Shaft ‘n’
B.	Shaft ‘p’
C.	Shaft ‘m’
D.	Shaft ‘g’
Answer» C. Shaft ‘m’

Discussion

1510.	Which shaft is used in valve shaftings?
A.	Shaft ‘s’
B.	Shaft ‘f’
C.	Shaft ‘b’
D.	Shaft ‘t’
Answer» B. Shaft ‘f’

Discussion

1511.	Which of the following option is correct for given statements regarding the selection of fits?Statement 1: Shaft ‘h’ is an interference fit and used only for running parts.Statement 2: Shaft ‘k’ is the true transition fit.
A.	T, F
B.	F, F
C.	T, T
D.	F, T
Answer» E.

Discussion

1512.	Which grades are available in shaft ’j’ assembly?
A.	1 to 5
B.	2 to 6
C.	3 to 7
D.	5 to 11
Answer» E.

Discussion

1513.	Which of the following is not true for hole and shaft basis systems?
A.	Hole basis system is generally preferred over shaft basis system
B.	Shaft basis system can be used when products are made from bright drawn bars
C.	Choice of the system depends upon nature of the product
D.	In hole basis system, allowances are applied to the hole
Answer» E.

Discussion

1514.	In the case of pure normal forces, shear stresses develop in all planes except the planes where normal stresses are maximum.
A.	True
B.	False
Answer» C.

Discussion

1515.	In the case of pure shear forces, normal stresses develop in all the planes except the planes where shear stresses are maximum.
A.	True
B.	False
Answer» B. False

Discussion

1516.	In 2-dimensional state of stress, shear stress maximum (τmax) occurs on a plane halfway between the two principal planes.
A.	True
B.	False
Answer» B. False

Discussion

1517.	Determine the principal stress for the state of stress?\(\begin{vmatrix}0 & -100 & 0 \\-100 & 200 & 0 \\ -0 & 0 & -150 \end{vmatrix}\)
A.	σ1=100, σ2=200, σ3=-150
B.	σ1=-100, σ2=-200, σ3=-150
C.	σ1=241.42, σ2=-41.42, σ3=-150
D.	σ1=150, σ2=41.42, σ3=-241.42
Answer» D. σ1=150, σ2=41.42, σ3=-241.42

Discussion

1518.	A cubic shape body is subjected to stress as shown in the figure below. Both are stresses are equal in magnitude but opposite in direction. Calculate the shear stresses on black plane and green plane.
A.	Black=σ, green=0
B.	Black=σ, green=σ/2
C.	Black=σ/2, green=σ/2
D.	Black=σ, green=σ
Answer» C. Black=σ/2, green=σ/2

Discussion

1519.	A cubic shape body is subjected to stresses as shown in the figure below. If both are stresses are equal in magnitude, calculate the shear stresses on black and green planes.
A.	Black=σ/2, green=0
B.	Black=0, green=σ/2
C.	Black=σ/2, green=σ/2
D.	Black=σ, green=σ
Answer» B. Black=0, green=σ/2

Discussion

1520.	If Two of the 3 principal stresses are zero, the state of stress is known as __________
A.	cylindrical
B.	uniaxial
C.	spherical/hydrostatic
D.	triaxial
Answer» C. spherical/hydrostatic

Discussion

1521.	The state of stress in 3-dimension is given by the following determinant, the coefficient of σ2 is an invariant quantity which is equal to ________\(\begin{vmatrix}\sigma-\sigma x & -\tau yx & -\tau zx\\ -\tau xy & \sigma-\sigma y & -\tau zy\\ -\tau xz & -\tau yz & \sigma-\sigma z\end{vmatrix}\)
A.	σx+σy+σz
B.	σxσy+σyσz+σzσx-τxy2- τyz2- τzx2
C.	σxσyσz+2τxyτyzτzx-σxτxy2 -σyτyz2 -σzτzx2
D.	1
Answer» B. σxσy+σyσz+σzσx-τxy2- τyz2- τzx2

Discussion

1522.	The three-dimensional state of stress consists of 3 unequal principal stresses acting on a point, this is called the triaxial state of stress. If all the three principal stresses are equal, the state of stress is known as __________
A.	cylindrical
B.	uniaxial
C.	spherical/hydrostatic
D.	triaxial
Answer» D. triaxial

Discussion

1523.	The 3-dimensional state of stress consists of 3 unequal principal stresses acting on a point, this is called the triaxial state of stress. If two of the three principal stresses are equal, the state of stress is known as __________
A.	cylindrical
B.	uniaxial
C.	spherical/hydrostatic
D.	triaxial
Answer» B. uniaxial

Discussion

1524.	Real crystals deform at theoretical shear strength.
A.	True
B.	False
Answer» C.

Discussion

1525.	Shear stress is a function of the displacement.
A.	True
B.	False
Answer» B. False

Discussion

1526.	What is a theoretical shear strength of brass perfect crystal?
A.	5 GPa
B.	6 GPa
C.	8 GPa
D.	10 GPa
Answer» C. 8 GPa

Discussion

1527.	The internal energy of crystal ___________ if atoms are displaced from their mean position.
A.	Rises
B.	Decreases
C.	Remains constant
D.	Varies independently
Answer» B. Decreases

Discussion

1528.	In C8K, how does the graphite behave?
A.	Electron acceptor
B.	Electron donor
C.	Proton acceptor
D.	Proton donor
Answer» B. Electron donor

Discussion

1529.	What is the coordination number of the carbon atoms in the graphite potassium structure, C8K?
A.	6
B.	3
C.	8
D.	12
Answer» E.

Discussion

1530.	In which of the following patterns, the carbon layers are arranged in the graphite potassium structure, C8K?
A.	AAAAAA
B.	ABABAB
C.	ABCABC
D.	CBACBA
Answer» B. ABABAB

Discussion

1531.	Which of the following statements is true for the thermal and electrical conductivity of graphite structure?
A.	It has high thermal but low electric conductivity
B.	It has high thermal and high electric conductivity
C.	It has low thermal and high electric conductivity
D.	It has low thermal and low electric conductivity
Answer» C. It has low thermal and high electric conductivity

Discussion

1532.	What is the hybridization of carbon atoms in the graphite structure?
A.	sp
B.	sp2
C.	sp3
D.	sp4
Answer» C. sp3

Discussion

1533.	In the case of graphite and TiS2 intercalation compounds, what is the structure possessed by the host crystals?
A.	Spherical structure
B.	Cubical structure
C.	Lamellar structure
D.	Cylindrical structure
Answer» D. Cylindrical structure

Discussion

1534.	In which of the following process, extra atoms or ions are inserted into the crystal structure?
A.	Ion exchange method
B.	Intercalation
C.	Electrophoresis
D.	Crystallization
Answer» C. Electrophoresis

Discussion

1535.	Pick the incorrect one from the following options.
A.	Voltage across the cutting gap influences the current and the MRR
B.	Higher voltage decreases the equilibrium machining gap
C.	Increased current leads to electrolyte heating
D.	ECM can be used for facing and turning complex 3D surfaces
Answer» C. Increased current leads to electrolyte heating

Discussion

1536.	Spraying or dipping method is used for applying insulation.
A.	True
B.	False
Answer» B. False

Discussion

1537.	The insulation in ECM should have_____
A.	adhesion to the tool
B.	roughness
C.	high water absorption tendency
D.	chemically active
Answer» B. roughness

Discussion

1538.	Tool with an electrolyte supply slot leaves small ridge on the work.
A.	True
B.	False
Answer» B. False

Discussion

1539.	In ECM, one needs to understand fluid flow while designing the tool for machining complex shapes.
A.	True
B.	False
Answer» B. False

Discussion

1540.	RAM-Scraping is a special kind of malware that looks (scrape) for sensitive data in the hard drive.
A.	True
B.	False
C.
Answer» B. False

Discussion

1541.	_________ is the hacking approach where cyber-criminals design fake websites or pages for tricking or gaining additional traffic.
A.	Cyber-replication
B.	Mimicking
C.	Website-Duplication
D.	Pharming
Answer» B. Mimicking

Discussion

1542.	Identity theft is the term used when a cyber-thief uses anybody’s personal information to impersonate the victim for their benefit.
A.	True
B.	False
Answer» B. False

Discussion

1543.	______ is the term used for toolkits that are purchased and used for targeting different exploits.
A.	Exploit bag
B.	Exploit set
C.	Exploit Toolkit
D.	Exploit pack
Answer» D. Exploit pack

Discussion

1544.	_________ are a specific section of any virus or malware that performs illicit activities in a system.
A.	Malicious programs
B.	Worms
C.	Spyware
D.	Payload
Answer» E.

Discussion

1545.	Which method should be implemented for reducing bandwidth?
A.	Multilevel codes
B.	Multilevel signalling
C.	PAM
D.	PDM
Answer» C. PAM

Discussion

1546.	Some of the M-ary waveforms are
A.	PAM
B.	PPM
C.	PDM
D.	All of the mentioned
Answer» E.

Discussion

1547.	PCM word size can be described by
A.	Time period
B.	Symbol rate
C.	Number of quantization levels
D.	None of the mentioned
Answer» D. None of the mentioned

Discussion

1548.	In pulse modulation, reciprocal of T(time) is
A.	Bandwidth
B.	Symbol rate
C.	Signal voltage
D.	None of the mentioned
E.	isa) Bandwidthb) Symbol ratec) Signal voltaged) None of the mentioned
Answer» C. Signal voltage

Discussion

1549.	Application of phase encoded binary signals are
A.	Optical communication
B.	Magnetic recording
C.	Satellite telemetry
D.	All of the mentioned
Answer» E.

Discussion

1550.	The taste produced by a microorganism, can be controlled by ____________
A.	Potassium per-manganate
B.	Potassium dichromate
C.	Sodium chloride
D.	Iodine
Answer» B. Potassium dichromate

Discussion

Explore topic-wise MCQs in Chemical Engineering.

What leads to the development of MESI and MEI protocol?

Which of the following uses a bus snooping mechanism?

Which of the following is the biggest challenge in the cache memory design?

Using of intercooler and reheating process ________ efficiency.

Extra cooling can be done by __________

Compression with intercooler causes ________

In actual gas turbine, mechanical energy is converted into heat by _________

A gas turbine is called as __________

Which of the following gives interference fit?

Which shaft is used in valve shaftings?

Which of the following option is correct for given statements regarding the selection of fits?Statement 1: Shaft ‘h’ is an interference fit and used only for running parts.Statement 2: Shaft ‘k’ is the true transition fit.

Which grades are available in shaft ’j’ assembly?

Which of the following is not true for hole and shaft basis systems?

In the case of pure normal forces, shear stresses develop in all planes except the planes where normal stresses are maximum.

In the case of pure shear forces, normal stresses develop in all the planes except the planes where shear stresses are maximum.

In 2-dimensional state of stress, shear stress maximum (τmax) occurs on a plane halfway between the two principal planes.

Determine the principal stress for the state of stress?\(\begin{vmatrix}0 & -100 & 0 \\-100 & 200 & 0 \\ -0 & 0 & -150 \end{vmatrix}\)

A cubic shape body is subjected to stress as shown in the figure below. Both are stresses are equal in magnitude but opposite in direction. Calculate the shear stresses on black plane and green plane.

A cubic shape body is subjected to stresses as shown in the figure below. If both are stresses are equal in magnitude, calculate the shear stresses on black and green planes.

If Two of the 3 principal stresses are zero, the state of stress is known as __________

The state of stress in 3-dimension is given by the following determinant, the coefficient of σ2 is an invariant quantity which is equal to ________\(\begin{vmatrix}\sigma-\sigma x & -\tau yx & -\tau zx\\ -\tau xy & \sigma-\sigma y & -\tau zy\\ -\tau xz & -\tau yz & \sigma-\sigma z\end{vmatrix}\)

The three-dimensional state of stress consists of 3 unequal principal stresses acting on a point, this is called the triaxial state of stress. If all the three principal stresses are equal, the state of stress is known as __________

The 3-dimensional state of stress consists of 3 unequal principal stresses acting on a point, this is called the triaxial state of stress. If two of the three principal stresses are equal, the state of stress is known as __________

Real crystals deform at theoretical shear strength.

Shear stress is a function of the displacement.

What is a theoretical shear strength of brass perfect crystal?

The internal energy of crystal ___________ if atoms are displaced from their mean position.

In C8K, how does the graphite behave?

What is the coordination number of the carbon atoms in the graphite potassium structure, C8K?

In which of the following patterns, the carbon layers are arranged in the graphite potassium structure, C8K?

Which of the following statements is true for the thermal and electrical conductivity of graphite structure?

What is the hybridization of carbon atoms in the graphite structure?

In the case of graphite and TiS2 intercalation compounds, what is the structure possessed by the host crystals?

In which of the following process, extra atoms or ions are inserted into the crystal structure?

Pick the incorrect one from the following options.

Spraying or dipping method is used for applying insulation.

The insulation in ECM should have_____

Tool with an electrolyte supply slot leaves small ridge on the work.

In ECM, one needs to understand fluid flow while designing the tool for machining complex shapes.

RAM-Scraping is a special kind of malware that looks (scrape) for sensitive data in the hard drive.

_________ is the hacking approach where cyber-criminals design fake websites or pages for tricking or gaining additional traffic.

Identity theft is the term used when a cyber-thief uses anybody’s personal information to impersonate the victim for their benefit.

______ is the term used for toolkits that are purchased and used for targeting different exploits.

_________ are a specific section of any virus or malware that performs illicit activities in a system.

Which method should be implemented for reducing bandwidth?

Some of the M-ary waveforms are

PCM word size can be described by

In pulse modulation, reciprocal of T(time) is

Application of phase encoded binary signals are

The taste produced by a microorganism, can be controlled by ____________