Explore topic-wise MCQs in Php.

This section includes 2167 Mcqs, each offering curated multiple-choice questions to sharpen your Php knowledge and support exam preparation. Choose a topic below to get started.

651.

What is the modulation index of an AM signal if the peak voltage goes from Emax to Emin?

A. \(\frac{E_{min}}{E_{max}}\)
B. \(\frac{E_{max}}{E_{min}}\)
C. \(\frac{E_{max} – E_{min}}{E_{max} + E_{min}}\)
D. \(\frac{E_{max} + E_{min}}{E_{max} – E_{min}}\)
Answer» D. \(\frac{E_{max} + E_{min}}{E_{max} – E_{min}}\)
652.

Technical level abstraction includes ______________

A. User level requirement
B. Physical level requirement
C. Operational level requirement
D. All of the mentioned
Answer» E.
653.

Which of the following does data requirements allow for data?

A. Entering data
B. Leaving data
C. Storing data in product
D. All of the mentioned
Answer» E.
654.

Which of these does not belong to the qualities of operational requirements?

A. Memory usage
B. Portability
C. Reusability
D. Portability & Reusability
Answer» E.
655.

Which of these does not belong to the qualities of development requirements?

A. Performance
B. Response time
C. Maintainability
D. Performance & Response time
Answer» E.
656.

Which of these are true for non functional requirements?

A. A non-functional requirement is also called behavioral requirements
B. A non-functional requirement is a statement that a software product must have certain properties
C. It consists of Development and operational requirements
D. All of the mentioned
Answer» E.
657.

Which is true about functional requirements?

A. A functional requirement is also called behavioral requirement
B. A functional requirement includes development and operational requirements
C. A functional requirement is a statement of how a software product must map program inputs to program outputs
D. None of the mentioned
Answer» D. None of the mentioned
658.

Which of these are non-technical requirements?

A. Functional Requirements
B. Non-Functional Requirements
C. Developer’s Requirements
D. Data Requirements
Answer» D. Data Requirements
659.

SRS consists of?

A. Problem statement
B. Product design
C. Problem statement & Product design
D. None of the mentioned
Answer» D. None of the mentioned
660.

Which is true for SRS?

A. SRS is the main input of the software product design process
B. SRS is the main output to the engineering design process
C. SRS is also the main output of the requirements specification activity
D. All of the mentioned
Answer» D. All of the mentioned
661.

JBPM supports databases such as:-

A. Oracle
B. SQL Server
C. MySql
D. All of the mentioned
Answer» E.
662.

To use PostgreSQL, you need to add a the driver library to the classpath.a) Trueb) False Dependency for JBPM 4.

A. Trueb) False Dependency for JBPM 4.a) True
B. False Dependency for JBPM 4.a) Trueb) FalseView Answer
Answer» B. False Dependency for JBPM 4.a) Trueb) FalseView Answer
663.

A decision describes a node that is conditional, based on some logic that you inject.

A. True
B. False
Answer» B. False
664.

Each department may have its own task list to complete in order to achieve the goals of the overarching process.

A. State
B. Activity
C. Subprocess
D. Fork or concurrence or split
Answer» D. Fork or concurrence or split
665.

A concurrent execution of multiple threads of execution at the same time, originating from a common thread.

A. State
B. Activity
C. Sequence
D. Fork or concurrence or split
Answer» E.
666.

An aggregation of states, activities, and other types of constructs that serializes them.

A. State
B. Activity
C. Sequence
D. Subprocess
Answer» D. Subprocess
667.

This provides a set of diagramming notations that describe a business process. This notation is akin to UML activity diagram.

A. WS-BPEL (BPEL 2.0)
B. WS-BPEL (BPEL)
C. WS-BPEL for People (BPEL4People)
D. Business Process Modeling Notation (BPMN)
E. Business Process Modeling Notation (BPMN)
Answer» E. Business Process Modeling Notation (BPMN)
668.

A workflow system extricates that process state from the domain and into a separate layer, called a business process.

A. True
B. False
Answer» B. False
669.

If x (t) approaches near the origin as t tends to infinity then the system is :

A. Asymptotically stable
B. Asymptotically stable in the large
C. Stable
D. Unstable
Answer» B. Asymptotically stable in the large
670.

The system is stable at origin if for every initial state which is sufficiently close to the origin remains near the origin for all t then the system is :

A. Asymptotically stable
B. Asymptotically stable in the large
C. Stable
D. Unstable
Answer» D. Unstable
671.

The non-linear system

A. Have one equilibrium state
B. Their behavior determines the qualitative behavior of the s-plane
C. System behavior for small deviations about the equilibrium point may be different from the large deviation
D. Both a and b
Answer» D. Both a and b
672.

The systems with equation such as dx/dt =F (x) are called:

A. Stable systems
B. Control systems
C. Autonomous systems
D. Unstable control system
Answer» D. Unstable control system
673.

Because different prediction programs have different levels of sensitivity and specificity, it makes sense to combine results of multiple programs based on consensus. This idea has prompted development of consensus-based algorithms.

A. True
B. False
Answer» B. False
674.

TwinScan is also a similarity-based gene-finding Server and it is similar to GenomeScan in that it uses GenScan to predict all possible exons from the genomic sequence.

A. True
B. False
Answer» B. False
675.

Which of the following is untrue about SGP-1?

A. The program translates all potential exons in each sequence and does pair wise alignment for the translated protein sequences using a dynamic programming approach
B. The near-perfect matches at the protein level define coding regions
C. It is a similarity-based web program that aligns two genomic DNA sequences from distinctly related organisms
D. It stands for Syntenic Gene Prediction
Answer» D. It stands for Syntenic Gene Prediction
676.

Which of the following is untrue about EST2Genome?a) It is a web-based program purely based on the sequence alignment approach to define intron–exon boundariesb) It compares an EST (or cDN

A. It is a web-based program purely based on the sequence alignment approach to define intron–exon boundaries
B. It compares an EST (or cDNA) sequence with a genomic DNA sequence containing the corresponding gene
C. The alignment is rarely done using a dynamic programming–based algorithm
D. Advantage of the approach is the ability to find very small exons and alternatively spliced exons that are very difficult to predict by any ab initio–type algorithms
Answer» D. Advantage of the approach is the ability to find very small exons and alternatively spliced exons that are very difficult to predict by any ab initio–type algorithms
677.

Which of the following is untrue about FGENES?

A. It stands for FindGenes
B. It is a web-based program that uses LDA
C. It is used to determine whether a signal is an exon
D. It does not make a use of HMMs
Answer» E.
678.

If for a given fuselage Stop=10m2, Aside=14m2, L = 10m then, find the ratio of wetted area to the volume of fuselage.

A. 3.42 per m
B. 6.68 per m3
C. 8.36 m
D. 4.001
Answer» B. 6.68 per m3
679.

My fuselage has length of 10.12m and volume of 8m3. Now if I want to design same fuselage but with volume of 16m3 then, what should be the length of fuselage? Given, all others parameters are held constant.

A. 5.06m
B. 1012cm
C. 1000mm
D. 6.025m
Answer» B. 1012cm
680.

If a fuselage has length of 12m and area when viewed from top and side are 4m2 and 8m2 respectively. Find the approximate value of volume.

A. 2.26m3
B. 2.65m2
C. 2.285
D. 2.65
Answer» B. 2.65m2
681.

A fuselage is configure to have length L. What will be the approximated internal volume (V)?

A. V = 3.4*(Stop*Aside/4L)
B. V = 3.4/4L
C. V = 3.4*(Stop*Aside/4)
D. V = 0.4*(Stop*Aside/L)
Answer» B. V = 3.4/4L
682.

Find the approximated volume for body as shown in below.

A. 77m3
B. 77m
C. 7.7m
D. 77 cm
Answer» B. 77m
683.

Fuselage has wetted area of 20m2. Given Aright = 5m2. Find the value of area viewed from top.

A. 6.8m2
B. 9.8m2
C. 6.8m
D. 68m
Answer» B. 9.8m2
684.

Wetted area of a rectangular body is 64.64m2. Find the average projected area.

A. 16.16m2
B. 15.85 m2
C. 25.368 km
D. 45.45 cm
Answer» B. 15.85 m2
685.

A fuselage is designed with circular C/S only. Average projected area is 28.2m2 then, find the wetted area of this fuselage.

A. 88.6m2
B. 96 m
C. 540cm
D. 253m
Answer» B. 96 m
686.

For wetted area Aw, which of the following is correct?

A. Aw = 3.4*(Stop + Aside) / 2
B. Aw = 3.4*(Stop + Aside) / 5
C. Aw = 3.4*(Stop + Aside) / 4
D. Aw = 3.4*(Stop + Asid
E. / 2b) Aw = 3.4*(Stop + Aside) / 5c) Aw = 3.4*(Stop + Aside) / 4d) Aw = 3.4*(Stop + Aside) / 3
Answer» B. Aw = 3.4*(Stop + Aside) / 5
687.

A wing has thickness of 15% of chord then, find the approximated wetted area. Given exposed area A is 10m2.

A. 20.55m2
B. 26.55
C. 36
D. 56
Answer» B. 26.55
688.

If thickness ratio t/c is less or equal to the 0.05 then, the wetted area is ____

A. Swet = 2.003*Sexposed
B. Swet = 2.003*4*Sexposed
C. Swet = 2/Sexposed
D. Swet = 2*Sexposed
Answer» B. Swet = 2.003*4*Sexposed
689.

Find the wetted area of given body.

A. 65m2
B. 75
C. 85m2
D. 200
Answer» B. 75
690.

Wing has planform area of 2m2. If wing is paper thin then, find wetted area of the wing.

A. 4m2
B. 10m2
C. 5m2
D. 20m2
Answer» B. 10m2
691.

Wetted area has effect on drag estimation.

A. True
B. False
Answer» B. False
692.

Total exposed area that would get wet if immersed in fluid is called ____________

A. wetted area
B. volume
C. length
D. planform of wing
Answer» B. volume
693.

Which of the following is the necessary condition to avoid grating lobes in N-Isotropic element end-fire array?

A. d < λ/2
B. d < λ
C. d > λ/2
D. d=λ
Answer» B. d < λ
694.

Which of the following is the necessary condition to avoid grating lobes in N-Isotropic element broadside array?

A. d < λ
B. d > λ
C. d=λ
D. d < 2λ
Answer» B. d > λ
695.

Which of the following is the necessary condition to avoid grating lobes in N-Isotropic element array?

A. \(\frac{d}{λ}≤\frac{1}{1+|cosθ_m |} \)
B. \(\frac{d}{λ}≥\frac{1}{1+|cosθ_m |} \)
C. \(\frac{λ}{d}≤\frac{1}{1+|cosθ_m |} \)
D. \(\frac{λ}{d}=\frac{1}{1+|cosθ_m |} \)
Answer» B. \(\frac{d}{λ}≥\frac{1}{1+|cosθ_m |} \)
696.

The Half-power beam width of the N-element isotropic source array can be known when _____

A. \(ᴪ=\frac{2.782}{N}\)
B. \(ᴪ=\frac{1.391}{N}\)
C. \(ᴪ=\frac{1.414}{N}\)
D. \(ᴪ=\frac{3}{N}\)
Answer» B. \(ᴪ=\frac{1.391}{N}\)
697.

The necessary condition for the direction of maximum second side lobe level of the 4-element isotropic array is _______

A. \(\frac{5}{4} π\)
B. \(\frac{3}{4} π\)
C. \(\frac{1}{8} π\)
D. \(\frac{5}{8} π\)
Answer» B. \(\frac{3}{4} π\)
698.

The necessary condition for the direction of maximum first side lobe level of the 8-element isotropic array is _______

A. \(\frac{3}{8} π\)
B. \(\frac{3}{4} π\)
C. \(\frac{1}{8} π\)
D. \(\frac{5}{8} π\)
Answer» B. \(\frac{3}{4} π\)
699.

The necessary condition for the direction of maximum side lobe level of the N-element isotropic array is _______

A. \(ᴪ=±\frac{2s+1}{N} π \)
B. \(ᴪ=±\frac{2s+2}{N} π\)
C. \(ᴪ=±\frac{2s}{N} π\)
D. \(ᴪ=±\frac{2(s+1)}{N} π\)
Answer» B. \(ᴪ=±\frac{2s+2}{N} π\)
700.

The direction of nulls for end-fire array of N –Isotropic sources separated by λ/4 is given by ____

A. \(θ_n=cos^{-1}⁡([∓1±\frac{4n}{N}])\)
B. \(θ_n=sin^{-1}⁡([∓1±\frac{4n}{N}])\)
C. \(θ_n=cos^{-1}⁡([∓1±\frac{2n}{N}])\)
D. \(θ_n=cos^{-1}⁡([∓1±\frac{n}{N}])\)
Answer» B. \(θ_n=sin^{-1}⁡([∓1±\frac{4n}{N}])\)