Which of the following pair of regular expression are not equivalent?

1(01)* and (10)*1b) x(xx)* and (xx)*xc) (a

Consider the following relational schemes for a library database: Assume {Author, Title} is the key for both schemes. Which of the following statements is true?

Both Book and Collection are in 2NF onlyView Answer

Both Book and Collection are in BCNF

Both Book and Collection are in 3NF only

Book is in 2NF and Collection is in 3NF

Both Book and Collection are in 2NF onlyView Answer

A transistor in a series voltage regulator acts like a variable resistor. The value of its resistance is determined by _______

it is not controlled by the transistor terminals

When is a regulator used?

when there are large variations in load current and input voltage

when there are small variations in load current and input voltage

when there are large variations in load current and input voltage

when there are no variations in load current and input voltage

when there are small variations in load current and large variations in input voltage

2460 + Mcqs in Entrance Exams in Advanced Machining Page 7 McqOptions

301.	The value of β if Z1, Z2 are same type of reactance?
A.	2π
B.	π
C.	π/2
D.	0
Answer» C. π/2

Discussion

302.	The value of α if Z1, Z2 are same type of reactance?
A.	0
B.	π/2
C.	π
D.	2π
Answer» B. π/2

Discussion

303.	Which of the following expression is true if Z1, Z2 are same type of reactance?
A.	sinh⁡α/2 sin⁡β/2=0
B.	coshα/2 sin⁡β/2=0
C.	coshα/2 cos⁡β/2=0
D.	sinhα/2 cos⁡β/2=0
Answer» E.

Discussion

304.	If Z1, Z2 are same type of reactance, then \|Z1/4 Z2\| is real, then?
A.	\|Z1/4 Z2\| = 0
B.	\|Z1/4 Z2\| < 0
C.	\|Z1/4 Z2\| > 0
D.	\|Z1/4 Z2\| >= 0
Answer» D. \|Z1/4 Z2\| >= 0

Discussion

305.	If Z1, Z2 are same type of reactance, then \|Z1/4 Z2\| is real, then the value of α is?
A.	α = sinh-1⁡√(Z1/4 Z2)
B.	α = sinh-1⁡⁡√(Z1/Z2)
C.	α = sinh-1⁡√(4 Z1/Z2)
D.	α = sinh-1⁡⁡√(Z1/2 Z2)
Answer» B. α = sinh-1⁡⁡√(Z1/Z2)

Discussion

306.	The relation between α, β, ϒ is?
A.	α = ϒ + jβ
B.	ϒ = α + jβ
C.	β = ϒ + jα
D.	α = β + jϒ
Answer» C. β = ϒ + jα

Discussion

307.	Kill -l will list all the signal numbers on our machine.
A.	True
B.	False
Answer» B. False

Discussion

308.	nice command is a ______ command in C shell.
A.	internal
B.	external
C.	built-in
D.	directory
Answer» D. directory

Discussion

309.	When you publish a message ________ is automatically created?
A.	Client
B.	Server
C.	Batch
D.	Server
Answer» D. Server

Discussion

310.	________ error will show if we try to send text string instead of bytes.
A.	TypeError
B.	Error
C.	Linker error
D.	Compiler error
Answer» B. Error

Discussion

311.	Publishing messages is handled through ________ Class.
A.	Client()
B.	Server()
C.	Publish()
D.	Batch()
Answer» B. Server()

Discussion

312.	What is the point of saturation of a condensable vapor?
A.	Bubble point
B.	Boiling point
C.	Triple point
D.	Dew pointView answer
Answer» E.

Discussion

313.	For an open unsteady state system, 15 J of heat was supplied and -5 J of work was done on the system, what is the value of a change in enthalpy?
A.	10 J
B.	– 15 J
C.	20 J
D.	– 25 JView answer
Answer» B. – 15 J

Discussion

314.	For an open unsteady state system, 15 J of heat was taken off and 10 J of work was done by the system, what is the value of a change in enthalpy?
A.	– 5 J
B.	5 J
C.	25 J
D.	– 25 JView answer
Answer» B. 5 J

Discussion

315.	For an open unsteady state system, 5 J of heat was supplied and 10 J of work was done by the system, what is the value of a change in enthalpy?
A.	– 5 J
B.	5 J
C.	10 J
D.	15 JView answer
Answer» B. 5 J

Discussion

316.	For an open unsteady state system, 5 J of heat was supplied and 10 J of work was done on the system, what is the value of a change in enthalpy?
A.	5 J
B.	10 J
C.	15 J
D.	20 JView answer
Answer» D. 20 JView answer

Discussion

317.	Which drug is used for the treatment of anthrax?
A.	erythromycin
B.	penicillin
C.	tetracycline
D.	ampicillin
Answer» C. tetracycline

Discussion

318.	Which of the following is a major virulence factor of Streptococcus pneumoniae?
A.	polysaccharide capsule
B.	M protein
C.	streptolysin O
D.	streptolysin S
Answer» B. M protein

Discussion

319.	Puerperal fever is a streptococcal infection of the ______________
A.	kidney
B.	skin
C.	uterus
D.	heart
Answer» D. heart

Discussion

320.	Which of the following toxins cause damage to the tissue cells by its phospholipase action?
A.	alpha toxin
B.	delta toxin
C.	protein A
D.	coagulase
Answer» C. protein A

Discussion

321.	What is the maximum value of the function f(x, y) = 3xy + 4x2y2 in the region?x=0; y=0; 2x + y = 2
A.	1
B.	0
C.	100
D.	10
Answer» E.

Discussion

322.	Find the minimum value of the function f(x, y) = x2 + y2 +199 over the real domain.
A.	12
B.	13
C.	0
D.	199
Answer» E.

Discussion

323.	The maximum value of the function is?f(x, y) = sin(x).cos(2y).cos(x + 2y) + sin(2y).cos(x + 2y).cos(x) in the region x=0; y=0; x+2y = 3
A.	90
B.	cos(1)
C.	sin(1).cos(1)
D.	sin(3).cos(3)
Answer» E.

Discussion

324.	If the Hessian matrix of a function is zero then the critical point is?
A.	It cannot be concluded
B.	Always at Origin
C.	Depends on Function
D.	(100,100)
Answer» B. Always at Origin

Discussion

325.	What is the maximum value of the function f(x, y) = x2(1 + 3y) + x3 + y3 + y2(1 + 3x) + 2xy over the region x=0; y=0; x + y=1.
A.	0
B.	-1
C.	Has no maximum value
D.	2
Answer» E.

Discussion

326.	Consider the circular region x2 + y2 = 81, What is the maximum value of the function?f(x, y) = x6 + y2(3x4 + 1) + x2.(3y4 + 1) + y6
A.	90
B.	80
C.	81 + 813
D.	100
Answer» D. 100

Discussion

327.	Find the critical points of the function.f(x, y)=\(\frac{sin^{-1}(y^2).(y^2+3y).(sin(y^6+7y))}{(y^9+y^{10})}+10x\)
A.	(0,0)
B.	(0,-90)
C.	(90, 0)
D.	None exist
Answer» E.

Discussion

328.	Which of the following blocks of DNA have a low frequency of recombination?
A.	Phenotypes
B.	Allotypes
C.	Isotopes
D.	Haplotypes
Answer» E.

Discussion

329.	Sites in the genome that are different among individuals are referred to as __________________
A.	intergenic
B.	intronic
C.	genetic polymorphisms
D.	interstitial
Answer» D. interstitial

Discussion

330.	The FOXP2 gene is responsible for _________________
A.	hearing
B.	sensation
C.	speech
D.	intellect
Answer» D. intellect

Discussion

331.	The AMY1 gene encodes for __________
A.	lysosome
B.	amylase
C.	lipase
D.	topoisomerase
Answer» C. lipase

Discussion

332.	Which of the following regions is involved in the development of brain?
A.	HAR
B.	ARF
C.	ATP
D.	SAR
Answer» B. ARF

Discussion

333.	Some of the fastest evolving genes encode for proteins involved in _________________________
A.	regulation of gene expression
B.	reproducing ability
C.	survival
D.	prevention of infection
Answer» B. reproducing ability

Discussion

334.	Intergenic and intronic DNA are essentially same.
A.	True
B.	False
Answer» C.

Discussion

335.	Systems biology is the study of Biological systems in humans.
A.	True
B.	False
Answer» C.

Discussion

336.	The process by which a single gene can code for multiple proteins is called ___________
A.	transcription
B.	transformation
C.	alternative splicing
D.	sequencing
Answer» D. sequencing

Discussion

337.	“Dark matter” is the region of the chromosome that constitutes highly repeated sequences.
A.	True
B.	False
Answer» B. False

Discussion

338.	Which of the following pair of regular expression are not equivalent?
A.	1(01)* and (10)1b) x(xx) and (xx)*xc) (a
B.	x(xx)* and (xx)*x
C.	(ab)* and ab
D.	x+ and x*x+
Answer» D. x+ and x*x+

Discussion

339.	By default sql server has ___________ isolation level
A.	READ COMMITTED
B.	READ UNCOMMITTED
C.	SERIALIZABLE
D.	REPEATABLE READ
Answer» B. READ UNCOMMITTED

Discussion

340.	Which of the following fixed database roles can add or remove user IDs?
A.	db_accessadmin
B.	db_securityadmin
C.	db_setupadmin
D.	db_sysadmin
Answer» B. db_securityadmin

Discussion

341.	Problems occurs if we don’t implement a proper locking strategy
A.	Dirty reads
B.	Phantom reads
C.	Lost updates
D.	Unrepeatable reads
Answer» C. Lost updates

Discussion

342.	Let R(A,B,C,D,E,P,G) be a relational schema in which the following FDs are known to hold: The relation schema R is
A.	in BCNF
B.	in 3NF, but not in BCNF
C.	in 2NF, but not in 3NF
D.	not in 2NFView Answer
Answer» E.

Discussion

343.	Consider the following relational schemes for a library database: Assume {Author, Title} is the key for both schemes. Which of the following statements is true?
A.	Both Book and Collection are in BCNF
B.	Both Book and Collection are in 3NF only
C.	Book is in 2NF and Collection is in 3NF
D.	Both Book and Collection are in 2NF onlyView Answer
Answer» D. Both Book and Collection are in 2NF onlyView Answer

Discussion

344.	A transistor in a series voltage regulator acts like a variable resistor. The value of its resistance is determined by _______
A.	emitter current
B.	base current
C.	collector current
D.	it is not controlled by the transistor terminals
Answer» C. collector current

Discussion

345.	When is a regulator used?
A.	when there are small variations in load current and input voltage
B.	when there are large variations in load current and input voltage
C.	when there are no variations in load current and input voltage
D.	when there are small variations in load current and large variations in input voltage
Answer» B. when there are large variations in load current and input voltage

Discussion

346.	A transistor series regulator has the following specifications: VIN=15V, VZ=8.3V, β=100, R=1.8KΩ, RL=2KΩ. What will be the Zener current in the regulator circuit?
A.	4.56mA
B.	3.26mA
C.	4.56mA
D.	3.68mA
Answer» E.

Discussion

347.	A Zener regulator has to handle supply voltage variation from 19.5V to 22.5V. Find the magnitude of regulating resistance, if the load resistance is 6KΩ. The Zener diode has the following specifications: breakdown voltage =18V, (IZ)Min=2µA, maximum power dissipation=60mW and Zener resistance =20Ω.
A.	0 < R < 500Ω
B.	77.8 < R < 500Ω
C.	77.8 < R < 100Ω
D.	18 < R < 500Ω
Answer» C. 77.8 < R < 100Ω

Discussion

348.	Determine the minimum value of load resistance that can be used in the circuit with (IZ)Min=3mA. The input voltage is 10V and the resistance R is 500Ω. The Zener diode has a VZ=6V 0and (IZ)MAX=90mA.
A.	1KΩ
B.	2.4KΩ
C.	1.2KΩ
D.	3.6KΩ
Answer» D. 3.6KΩ

Discussion

349.	Determine the maximum and minimum values of load current for which the Zener diode shunt regulator will maintain regulation when VIN=24V and R=500Ω. The Zener diode has a VZ=12V and (IZ)MAX=90mA.
A.	40mA, 0mA respectively
B.	36mA, 5mA respectively
C.	10mA, 6mA respectively
D.	21mA, 0mA respectively
Answer» E.

Discussion

350.	In the given limiter circuit, an input voltage Vi=10sin100πt is applied. Assume that the diode drop is 0.7V when it’s forward biased. The zener breakdown voltage is 6.8V.The maximum and minimum values of outputs voltage are _______
A.	6.1V,-0.7V
B.	0.7V,-7.5V
C.	7.5V,-0.7V
D.	7.5V,-7.5V
Answer» D. 7.5V,-7.5V

Discussion

304.	If Z1, Z2 are same type of reactance, then \|Z1/4 Z2\| is real, then?
A.	\|Z1/4 Z2\| = 0
B.	\|Z1/4 Z2\| < 0
C.	\|Z1/4 Z2\| > 0
D.	\|Z1/4 Z2\| >= 0
Answer» D. \|Z1/4 Z2\| >= 0

Explore topic-wise MCQs in Advanced Machining.

The value of β if Z1, Z2 are same type of reactance?

The value of α if Z1, Z2 are same type of reactance?

Which of the following expression is true if Z1, Z2 are same type of reactance?

If Z1, Z2 are same type of reactance, then |Z1/4 Z2| is real, then?

If Z1, Z2 are same type of reactance, then |Z1/4 Z2| is real, then the value of α is?

The relation between α, β, ϒ is?

Kill -l will list all the signal numbers on our machine.

nice command is a ______ command in C shell.

When you publish a message ________ is automatically created?

________ error will show if we try to send text string instead of bytes.

Publishing messages is handled through ________ Class.

What is the point of saturation of a condensable vapor?

For an open unsteady state system, 15 J of heat was supplied and -5 J of work was done on the system, what is the value of a change in enthalpy?

For an open unsteady state system, 15 J of heat was taken off and 10 J of work was done by the system, what is the value of a change in enthalpy?

For an open unsteady state system, 5 J of heat was supplied and 10 J of work was done by the system, what is the value of a change in enthalpy?

For an open unsteady state system, 5 J of heat was supplied and 10 J of work was done on the system, what is the value of a change in enthalpy?

Which drug is used for the treatment of anthrax?

Which of the following is a major virulence factor of Streptococcus pneumoniae?

Puerperal fever is a streptococcal infection of the ______________

Which of the following toxins cause damage to the tissue cells by its phospholipase action?

What is the maximum value of the function f(x, y) = 3xy + 4x2y2 in the region?x=0; y=0; 2x + y = 2

Find the minimum value of the function f(x, y) = x2 + y2 +199 over the real domain.

The maximum value of the function is?f(x, y) = sin(x).cos(2y).cos(x + 2y) + sin(2y).cos(x + 2y).cos(x) in the region x=0; y=0; x+2y = 3

If the Hessian matrix of a function is zero then the critical point is?

What is the maximum value of the function f(x, y) = x2(1 + 3y) + x3 + y3 + y2(1 + 3x) + 2xy over the region x=0; y=0; x + y=1.

Consider the circular region x2 + y2 = 81, What is the maximum value of the function?f(x, y) = x6 + y2(3x4 + 1) + x2.(3y4 + 1) + y6

Find the critical points of the function.f(x, y)=\(\frac{sin^{-1}(y^2).(y^2+3y).(sin(y^6+7y))}{(y^9+y^{10})}+10x\)

Which of the following blocks of DNA have a low frequency of recombination?

Sites in the genome that are different among individuals are referred to as __________________

The FOXP2 gene is responsible for _________________

The AMY1 gene encodes for __________

Which of the following regions is involved in the development of brain?

Some of the fastest evolving genes encode for proteins involved in _________________________

Intergenic and intronic DNA are essentially same.

Systems biology is the study of Biological systems in humans.

The process by which a single gene can code for multiple proteins is called ___________

“Dark matter” is the region of the chromosome that constitutes highly repeated sequences.

Which of the following pair of regular expression are not equivalent?

By default sql server has ___________ isolation level

Which of the following fixed database roles can add or remove user IDs?

Problems occurs if we don’t implement a proper locking strategy

Let R(A,B,C,D,E,P,G) be a relational schema in which the following FDs are known to hold: The relation schema R is

Consider the following relational schemes for a library database: Assume {Author, Title} is the key for both schemes. Which of the following statements is true?

A transistor in a series voltage regulator acts like a variable resistor. The value of its resistance is determined by _______

When is a regulator used?

A transistor series regulator has the following specifications: VIN=15V, VZ=8.3V, β=100, R=1.8KΩ, RL=2KΩ. What will be the Zener current in the regulator circuit?

Determine the minimum value of load resistance that can be used in the circuit with (IZ)Min=3mA. The input voltage is 10V and the resistance R is 500Ω. The Zener diode has a VZ=6V 0and (IZ)MAX=90mA.

Determine the maximum and minimum values of load current for which the Zener diode shunt regulator will maintain regulation when VIN=24V and R=500Ω. The Zener diode has a VZ=12V and (IZ)MAX=90mA.

In the given limiter circuit, an input voltage Vi=10sin100πt is applied. Assume that the diode drop is 0.7V when it’s forward biased. The zener breakdown voltage is 6.8V.The maximum and minimum values of outputs voltage are _______