Explore topic-wise MCQs in Php.

This section includes 2095 Mcqs, each offering curated multiple-choice questions to sharpen your Php knowledge and support exam preparation. Choose a topic below to get started.

1751.

The life span of rigid pavement depends on

A. Magnetic action
B. Frictional action
C. Location of loading
D. Seasonal change
Answer» D. Seasonal change
Discussion
1752.

Which of the following component converts biochemical events into measurable signals?

A. amplifier
B. opamp
C. rectifier
D. transducer
Answer» E.
Discussion
1753.

Landfill should not be constructed within ________ m of lake or pond.

A. 100
B. 200
C. 300
D. 400
Answer» C. 300
Discussion
1754.

The _________ can be measured by the movement of electrophoresis.

A. Zeta resistance
B. Voltage
C. Current
D. Zeta potential
Answer» E.
Discussion
1755.

What happens if we continuously increase the velocity after attaining the constant pressure drop?

A. Remains constant
B. Pressure drop decreases to zero
C. Slight reduction in pressure drop
D. Slight increase in pressure drop
Answer» C. Slight reduction in pressure drop
Discussion
1756.

In transformation in steel, hypo eutectoid steel are heated up to what temperature?

A. 677°C
B. 700°C
C. 723°C
D. 746°C
Answer» D. 746¬¨¬®‚Äö√†√ªC
Discussion
1757.

The transducer for USM works on how many principles?

A. 2
B. 3
C. 4
D. 5
Answer» C. 4
Discussion
1758.

Conversion of regular expression to e-NFA takes ___________ time.

A. linear
B. exponential
C. logarithmic
D. none of the mentioned
Answer» B. exponential
Discussion
1759.

In State Pollution Control Boards, how many constitutions of committees can constitute?

A. One
B. Ten
C. Not constitute any committees
D. As many committees as necessary
Answer» E.
Discussion
1760.

Structured Analysis is based on the principle of Bottom-Up Approach.

A. True
B. False
Answer» C.
Discussion
1761.

Rankine considered the first soil element (element 1) at ___________

A. Base of the structure
B. Below the foundation
C. Edge of the footing
D. All of the mentioned
Answer» C. Edge of the footing
Discussion
1762.

An ellipse

A. Error
B. A semi-circle
C. A sinusoid
Answer» C. A sinusoid
Discussion
1763.

In an automobile engine, up to what percent of parts are manufactured by casting?

A. 65%
B. 75%
C. 80%
D. 90%
Answer» E.
Discussion
1764.

The microorganisms stick to which of the following regions of the respiratory tract?

A. nasal baffle
B. nasopharynx
C. mucus
D. oropharynx
Answer» D. oropharynx
Discussion
1765.

Phase noise at the output of an oscillator is given by:

A. kBFGT<sub>0</sub>
B. kT<sub>0</sub>F/Pc
C. kT<sub>0</sub>F/Pc
D. None of the mentioned
Answer» C. kT<sub>0</sub>F/Pc
Discussion
1766.

Due to ______________ very soft soil is liable to give way under the action of load, especially at places such as sloping ground, riverbank, etc.

A. Horizontal movement of earth
B. Lateral pressure on the superstructure
C. Transpiration of the trees and shrubs
D. Atmospheric action
Answer» B. Lateral pressure on the superstructure
Discussion
1767.

What are the methods in which use case descriptions can be written ?

A. Actors in a use case are almost always stakeholders
B. Preconditions must be true before statement begins
C. Need list should be reviewed when writing each use case
D. All of the mentioned
Answer» E.
Discussion
1768.

When electric potential is null, then the electric field intensity will be

A. 0
B. 1
C. dA/dt
D. –dA/dt
Answer» E.
Discussion
1769.

Which of the following is incorrect about the monolithic model?

A. Monolithic model is simply an implementation model
B. It provides a good efficiency because application and interface model are directly connected
C. All of the mentioned
D. None of the mentioned
Answer» E.
Discussion
1770.

When does the development of heart begin?

A. 1st week
B. 12th week
C. 5th week
D. 3rd week
Answer» E.
Discussion
1771.

The eutectoid mixture of ferrite (α) and cementite (Fe3C) is called __________$

A. Ledeburite
B. Pearlite
C. Hyper and hypo eutectoid steel
D. Cast iron
Answer» C. Hyper and hypo eutectoid steel
Discussion
1772.

A siren placed at a railway platform is emitting sound of frequency 5kHz. A passenger sitting in a moving train ‘A’ records a frequency of 5.5 kHz while the train approaches the siren. During his return journey in a different train B he records a frequency of 6kHz while approaching the same siren. The ratio of the velocity of train B to that train A is$

A. 242/252
B. 2
C. 5/6
D. 11/6
Answer» C. 5/6
Discussion
1773.

If hybridization is carried out with a clone having a sequence similar to that of the vector from which library has been constructed, then it is of no use. Choose the correct statement in respect to it.

A. PCR amplification of the probe can be carried out
B. Excision of the probe should be carried out which should be followed polyacrylamide gel electrophoresis
C. If the vector sequence and the DNA probe are having similarities, some of the vector would be hybridized
D. Probe should be in a vector that is having some sequence similarity with the library to be screened
Answer» B. Excision of the probe should be carried out which should be followed polyacrylamide gel electrophoresis
Discussion
1774.

The effective width of hot-rolled and welded plates is given by

A. b<sub>e</sub>/b = α √(f<sub>y</sub>/f<sub>cr</sub>)
B. b<sub>e</sub>/b = α √(f<sub>cr</sub> x f<sub>y</sub>)
C. b<sub>e</sub>/b = α √(f<sub>cr</sub> +f<sub>y</sub>)
D. b<sub>e</sub>/b = α √(f<sub>cr</sub>/f<sub>y</sub>)
Answer» E.
Discussion
1775.

Which of the following control and supervises the memory requirements of an operating system?

A. processor
B. physical memory manager
C. virtual memory manager
D. ram
Answer» D. ram
Discussion
1776.

Which method is more accurate?

A. pseudo-random testing
B. random testing
C. LFSR
D. cellular automata
Answer» B. random testing
Discussion
1777.

What effect does Bromine has on yield and conversion of nitric acid to nitro paraffins?

A. Positive
B. Negative
C. Inert
D. Does not affect
Answer» B. Negative
Discussion
1778.

A separate _______ crankcase would result in saving weight also enabling cheaper and quick replacement.

A. nickel
B. chromium
C. iron
D. aluminium
Answer» E.
Discussion
1779.

Which of the following conditions form the basis of this method?

A. equilibrium conditions
B. force-displacement conditions
C. load applied
D. compatibility conditions
Answer» E.
Discussion
1780.

Find the unity gain bandwidth for voltage series feedback amplifier?

A. UBG = Af<sub>o</sub>
B. UBG = Af<sub>F</sub>
C. UBG = Af<sub>o</sub> f<sub>F</sub>
D. UBG = A<sub>F</sub>f<sub>o</sub>
Answer» B. UBG = Af<sub>F</sub>
Discussion
1781.

Which is the optimum place for a temperature probe?

A. Landing gear
B. Inside cockpit
C. Exit of engine
D. Tip of vertical tail
Answer» E.
Discussion
1782.

D/A converter generates the set pattern successively.

A. True
B. False
Answer» B. False
Discussion
1783.

What is the most convenient reason for auto-acceleration effect?

A. increase in k<sub>p</sub>
B. increase in k<sub>d</sub>
C. decrease in k<sub>t</sub>
D. increase in k<sub>t</sub>
Answer» D. increase in k<sub>t</sub>
Discussion
1784.

Symbiosis is a Short term interaction.

A. True
B. False
Answer» C.
Discussion
1785.

The size of cigarette particles is

A. 1μm
B. 10μm
C. <1μm d) >10μm
Answer» D.
Discussion
1786.

The Carrier gas should spread more after discharge.

A. True
B. False
Answer» C.
Discussion
1787.

Which of the following regulatory sequence allows transcription to continue?

A. Sequence 1
B. Sequence 2
C. Sequence 3
D. Sequence 4
Answer» C. Sequence 3
Discussion
1788.

A variable can be used outside the process i.e. in the architecture.

A. True
B. False
Answer» C.
Discussion
1789.

Which of the following is a type of materialized view management?

A. Incremental view management
B. Immediate view management
C. Deferred view management
D. All of the mentioned
Answer» E.
Discussion
1790.

Heat dissipation from heat sink take place primarily by ___________

A. Conduction
B. Convection
C. Radiation
D. All of the mentioned
Answer» E.
Discussion
1791.

How many terms can be used to express the output of a machine?

A. 3
B. 4
C. 5
D. 6
Answer» C. 5
Discussion
1792.

In the equation for steam function due to source steam function is inversely proportional to magnitude at discharge

A. True
B. False
Answer» B. False
Discussion
1793.

Which of the following is used as targets in the blotting techniques?

A. Nucleic acids
B. Agarose
C. Proteins
D. E. coli
Answer» B. Agarose
Discussion
1794.

Which of the normal form is based on multivalued dependencies?

A. First
B. Second
C. Third
D. Fourth
Answer» E.
Discussion
1795.

Is lifting line theory applies to circulation?

A. True
B. False
Answer» B. False
Discussion
1796.

_____ may be used for mixing relatively low viscosity dispersions.

A. Propeller mixer
B. Shaker mixer
C. Impellor mixer
D. Motor mixer
Answer» B. Shaker mixer
Discussion
1797.

An open riser is easy to mould as compared to a blind riser.

A. True
B. False
Answer» B. False
Discussion
1798.

Which of the following statement is true about the spectrum of frequency modulated wave?

A. carrier frequency starts decreasing at a faster rate when the modulation index is large
B. the amplitude of any sideband is totally depends on modulation index
C. total number of sidebands is completely depend on the modulation index
D. carrier frequency is amplified
Answer» C. total number of sidebands is completely depend on the modulation index
Discussion
1799.

What are the values of constants for whit worth threads?

A. a=0.003 b=0.005, c=0.002
B. a=0.002, b=0.003, c=0.005
C. a=0.004, b=0.005, c=0.006
D. a=0.001, b=0.002, c=0.003
Answer» C. a=0.004, b=0.005, c=0.006
Discussion
1800.

_______________ is usually defined as a rule or requirement, which test suite needs to satisfy.

A. Code Conduct
B. Code Coverage
C. Coverage Criteria
D. Mutation Redundancy
Answer» D. Mutation Redundancy
Discussion