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.

1151.

WHICH_OF_THE_FOLLOWING_IS_THE_MOST_COMMONLY_USED_DETECTOR_IN_ESCA_AND_AES??$

A. Electron multiplier
B. Dynodes
C. Photovoltaic cell
D. Photomultiplier
Answer» B. Dynodes
Discussion
1152.

PISTON_RINGS_ARE_PLATED_WITH_CHROMIUM,_CADMIUM_OR_PHOSPHATE_IN_ORDER_TO?$

A. reduce cost
B. improve surface finish
C. prevent clogging
D. reduce wear and eliminate scuffing
Answer» E.
Discussion
1153.

WHY_DO_WE_USE_STATIC_CONSTRUCTORS??$

A. To initialize the static members of class
B. To initialize all the members with static value
C. To delete the static members when not required
D. To clear all the static members initialized values
Answer» C. To delete the static members when not required
Discussion
1154.

THE_TRANSFORMER_SWITCHING_TRANSIENT_IS_REFERRED_AS______________?$

A. Inrush current
B. Outrush current
C. Middlerush current
D. Harmonic current
Answer» B. Outrush current
Discussion
1155.

WHAT_IS_INTERNAL_SULPHATES_ATTACK??$

A. Sulphate are more usually are a result of high-sulphate soils
B. Sulphate are more usually are a result of ground water
C. Industrial waste water
D. Hydraulic cements
Answer» E.
Discussion
1156.

IN_A_MAP,_30_MILES_IS_REPRESENTED_BY_20_CM._WHAT_IS_THE_LENGTH_OF_THE_KILOMETER_SCALE_IF_THE_MAXIMUM_LENGTH_TO_BE_MEASURED_IS_10_KM?_(1_MILE_=_1.609_KM)?$

A. 4.14 cm
B. 10.73 cm
C. 9.32 cm
D. 24.14 cm
Answer» B. 10.73 cm
Discussion
1157.

THE_RATIO_OF_FLEXIBILITY_STRENGTH_APPLIED_DUE_TO_A_LOAD_AND_THE_FLEXURAL_STRESS_IS_CALLED?$

A. Stress ratio
B. Strain ratio
C. Stress and strain ratio
D. Bulk modulus
Answer» B. Strain ratio
Discussion
1158.

HOME_BLOOD_GLUCOSE_MEASUREMENT_DEVICES_MEASURE_THE_GLUCOSE_LEVEL_THROUGH_INVASIVE_METHOD.?$

A. True
B. False
Answer» B. False
Discussion
1159.

HYDROLOGICAL_INVESTIGATION_HAS_TO_BE_DONE_FOR____________?$

A. Landfill design
B. Analysis
C. Recovery
D. Collection of hydrological data
Answer» E.
Discussion
1160.

Which of the following is the ideal vacuum for electron spectrometers?$

A. 10<sup>-6</sup> torr
B. 10<sup>-7</sup> torr
C. 10<sup>-8</sup> torr
D. 10<sup>-9</sup> torr
Answer» B. 10<sup>-7</sup> torr
Discussion
1161.

Fly ash affects the sulphate attack. True or False?$

A. True
B. False
Answer» B. False
Discussion
1162.

The load safety factor assumed is$

A. 1
B. 1.2
C. 1.5
D. 1.6
Answer» C. 1.5
Discussion
1163.

When did the National Green Tribunal Act constituted?$

A. 2000
B. 2005
C. 2010
D. 2015
Answer» D. 2015
Discussion
1164.

Which body part contains the largest microbial population?$

A. stomach
B. small intestine
C. large intestine
D. mouth
Answer» D. mouth
Discussion
1165.

Which one of the following is not a placental hormone?$

A. Progesterone
B. HCS
C. HCG
D. Melatonin
Answer» E.
Discussion
1166.

Flexural torsional buckling cannot occur in ________$

A. unsymmetrical members
B. cross section with one axis of symmetry
C. cross section with no axis of symmetry
D. doubly symmetric members
Answer» E.
Discussion
1167.

__________ prohibits the use of alcohols directly in petrol engines.$

A. High cost & difficult availability
B. Low octane number
C. Low flash point
D. Low calorific value
Answer» B. Low octane number
Discussion
1168.

Find the input and output voltage in voltage follower circuit?$

A. V<sub>in</sub>=2v and V<sub>out</sub> = 3v
B. V<sub>in</sub>=10v and V<sub>out</sub> = 11v
C. V<sub>in</sub>=9v and V<sub>out</sub> = 9v
D. V<sub>in</sub>=4v and V<sub>out</sub> = 7v
Answer» D. V<sub>in</sub>=4v and V<sub>out</sub> = 7v
Discussion
1169.

The bimolecular biradical mechanism in spontaneous thermal polymerization is very appreciated for its successful attempts to induce polymerization by biradicals formed. State true or false.$

A. true
B. false
Answer» C.
Discussion
1170.

Competition and commensalism can occur at the same time.$

A. True
B. False
Answer» B. False
Discussion
1171.

DBD packets are involved during which two states?$

A. Exstart
B. Loading
C. Exchange
D. Two-way
Answer» B. Loading
Discussion
1172.

What is the formula of the I2R loss?$

A. I<sup>2</sup>R loss = number of conductors / copper loss in each conductor
B. I<sup>2</sup>R loss = number of conductors + copper loss in each conductor
C. I<sup>2</sup>R loss = number of conductors – copper loss in each conductor
D. I<sup>2</sup>R loss = number of conductors * copper loss in each conductor
Answer» E.
Discussion
1173.

Larger DNA fragments require a ___________ transfer time.$

A. Longer
B. Shorter
C. Medium
D. Very high
Answer» B. Shorter
Discussion
1174.

Dendrite is used as a ________ adhesive.$

A. Contact
B. Hot
C. Reactive
D. Pressure sensitive
Answer» B. Hot
Discussion
1175.

How many sets of cleavage is shown by calcite minerals usually?$

A. 1
B. 2
C. 3
D. 4
Answer» D. 4
Discussion
1176.

SimpleTrigger allows you to set trigger properties:-$

A. start time
B. end time
C. repeat interval
D. all of the mentioned
Answer» E.
Discussion
1177.

A material which ruptures with little or no plastic deformation is said to be ____________$

A. Ductile material
B. Elastic material
C. Plastic material
D. Brittle material
Answer» E.
Discussion
1178.

The minimum width of crack, which can be inspected by MPI, is _________$

A. 1nm
B. 1µm
C. 10µm
D. 1mm
Answer» C. 10¬¨¬®¬¨¬µm
Discussion
1179.

Which of the following is untrue regarding Prediction with Neural Networks?$

A. When multiple sequence alignments and neural networks are combined, the result is further improved accuracy
B. A neural network is trained by a single sequence
C. A neural network is trained by a sequence profile derived from the multiple sequence alignment
D. When the sufficiently trained network processes an unknown sequence, it applies the rules learned in training to recognize particular structural patterns
Answer» C. A neural network is trained by a sequence profile derived from the multiple sequence alignment
Discussion
1180.

Which challenge comes when we use many devices on the same network?$

A. Signaling
B. Security
C. Presence detection
D. Power consumption
Answer» E.
Discussion
1181.

Pentium III is used in computers which run on the operating system of$

A. windows NT
B. windows 98
C. unix
D. all of the mentioned
Answer» E.
Discussion
1182.

A pooling method, whereby, handlers with higher than average utilization pay into and handlers with lower than average utilization receives payment from is called _______$

A. Base excess pricing
B. Louisville takes out and pay back
C. Individual handler pools
D. Producer settlement fund
Answer» E.
Discussion
1183.

For a local enhancement using mean and variance, there is one condition: σs(x, y) ≤ k2DG, where, MDG is global standard deviation, k2 a positive constant and σs(x, y) a measure of contrast at point (x, y). Then, which fact is true for k2 if its values is greater than 1.0?$#

A. Enhancement is being done on light areas
B. Enhancement is being done on dark areas
C. Enhancement is being done independent of value of k<sub>0</sub>
D. None of the mentioned
Answer» B. Enhancement is being done on dark areas
Discussion
1184.

The typical efficiency of a hydraulic ram is ____$

A. 50%
B. 60%
C. 70%
D. 80%
Answer» C. 70%
Discussion
1185.

Which of the following starter can sufficiently start the DC series motor?$

A. 3-point starter
B. 4-point starter
C. 2-point starter
D. Cannot be determined
Answer» D. Cannot be determined
Discussion
1186.

Tortoise shell or calico cats are always ________________ for O locus that is responsible for orange color development.$

A. Homozygous
B. Heterozygous
C. Deleterious
D. Duplication
Answer» C. Deleterious
Discussion
1187.

The par region from a plasmid such as Psc101 can be cloned into Pbr322. What is the function of this region?$

A. Maintains stability
B. Maintains high copy number
C. Maintains cloning efficiency
D. Aids in replication
Answer» B. Maintains high copy number
Discussion
1188.

https://www.bidigital.com/ci/ is a website which is used for _________________$

A. Competitive Intelligence gathering
B. Cognitive Intelligence gathering
C. Cyber Intelligence gathering
D. Competitors Info gathering
Answer» B. Cognitive Intelligence gathering
Discussion
1189.

Which of the following is an associative array?$

A. a[ ]             
B. arr[ ]            
C. envr [ ]            
D. ENVIRON[ ]            
Answer» E.
Discussion
1190.

The probe signal is inverse to that of the pump signal. State whether the given statement is true or false.$

A. True
B. False
Answer» B. False
Discussion
1191.

Which of the below is not a property of ferro cement?$

A. Impervious nature
B. Capacity to resist shock
C. No need of formwork
D. Strength per unit mass is low
Answer» E.
Discussion
1192.

The output of the multiplier is fed to which of the following immediately?$

A. Pulse amplifier discriminator
B. DAC
C. ADC
D. Multichannel analyser
Answer» B. DAC
Discussion
1193.

Which among the following is true for static constructor?$

A. Static constructors are called with every new object
B. Static constructors are used initialize data members to zero always
C. Static constructors can’t be parameterized constructors
D. Static constructors can be used to initialize the non-static members also
Answer» B. Static constructors are used initialize data members to zero always
Discussion
1194.

It is possible to reduce harmonic currents completely.$

A. True
B. False
Answer» C.
Discussion
1195.

What is external sulphates attack?$

A. Industrial waste water
B. Presence of natural gypsum in the aggregates
C. Hydraulic cements
D. Portland cement might be over-sulphated
Answer» B. Presence of natural gypsum in the aggregates
Discussion
1196.

The design load is taken as$

A. 15th percentile load
B. 85th percentile load
C. 98th percentile load
D. 99th percentile load
Answer» D. 99th percentile load
Discussion
1197.

In how many tier programs the inland water quality monitoring network is operating?$

A. One
B. Two
C. Three
D. Four
Answer» D. Four
Discussion
1198.

Enterococci is found in which part of the intestine?$

A. duodenum
B. jejunum
C. ileum
D. large intestine
Answer» C. ileum
Discussion
1199.

Which of the unit operation is used in Model view controller?$

A. Is a Decomposition
B. Part Whole Decomposition
C. All of the mentioned
D. None of the operation
Answer» C. All of the mentioned
Discussion
1200.

The first movement of fetus and appearance of hair on head occurs during?$

A. 5th month
B. 7th month
C. 2nd month
D. 9th month
Answer» B. 7th month
Discussion