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.

2051.

Different learning method does not include:

A. Memorization
B. Analogy
C. Deduction
D. Introduction
Answer» E.
2052.

____ section can be used if we’ve to print something after processing the last line.$

A. end
B. begin
C. start
D. first
Answer» C. start
2053.

The device which is used to perform wavelength conversion is called as ___________

A. Attenuator
B. Wavelength Gyrator
C. Wavelength Circulator
D. Wavelength translator
Answer» E.
2054.

Electroporation method uses an electric pulse to facilitate uptake of DNA.

A. True
B. False
Answer» B. False
2055.

Determine the slew rate of the amplifier having full power bandwidth f0 and the rated output voltage as V0. Given that the input signal is of sinusoidal nature.

A. 2πf<sub>0</sub> V<sub>0</sub>
B. V<sub>0</sub> / 2πf<sub>0</sub>
C. V<sub>0</sub> / f<sub>0</sub>
D. f<sub>0</sub> V<sub>0</sub>
Answer» B. V<sub>0</sub> / 2‚âà√¨‚àö√ëf<sub>0</sub>
2056.

In micturition _____

A. Urethra relaxes
B. Ureters relax
C. Ureters contract
D. Urethra contracts
Answer» B. Ureters relax
2057.

PSC stands for:

A. Post-Stressed Concrete
B. Post-Strained Concrete
C. Pre-Stressed Concrete
D. Pre-strained Concrete
Answer» D. Pre-strained Concrete
2058.

Up to what amount of carbon content in steels, can they be treated by oxygen cutting?

A. 0.3%
B. 0.2%
C. 0.7%
D. 0.4%
Answer» D. 0.4%
2059.

What are the three special properties that only LTI systems follow?

A. Commutative property, Associative property, Causality
B. Associative property, Distributive property, Causality
C. Commutative property, Distributive property, Associative property
D. Distributive property, Stability, Causality
Answer» D. Distributive property, Stability, Causality
2060.

Which of the following is not a chain termination codon?

A. UAA
B. UGA
C. UAG
D. UGG
Answer» E.
2061.

An artificial skin is needed the most in the cases of __________

A. Amputation
B. Burns
C. Eczema
D. Skin Cancer
Answer» C. Eczema
2062.

The anode is held at __________ positive potential and the filament is held at ____________ potential.

A. High, ground
B. Ground, high
C. Low, high
D. High, low
Answer» B. Ground, high
2063.

The ____________ volume created in the cylinder during the operation of the engine is filled with the working fluid.

A. constant
B. varying
C. any one of the mentioned
D. none of the mentioned
Answer» C. any one of the mentioned
2064.

The main reason for generation of harmonics in a transformer is ____________

A. Fluctuating load
B. Poor insulation
C. Mechanical vibrations
D. Saturation of core
Answer» E.
2065.

The separation of water or water-cement mixture from the freshly mixed concrete is known as bleeding.

A. True
B. False
Answer» B. False
2066.

Which of the following scale is a plain scale with fully divided minor divisions?

A. Diagonal scale
B. Vernier scale
C. Primary scale
D. Comparative scale
Answer» D. Comparative scale
2067.

The stress in pavement changes

A. Daily
B. Seasonally
C. Annually
D. Depends on pavement
Answer» B. Seasonally
2068.

Which of the follong is the principle behind Fluoroptic temperature sensors working?

A. optical fiber
B. thermistor
C. thermocouple
D. rtd
Answer» B. thermistor
2069.

What is the main purpose of a site hazard assessment?

A. To provide data
B. Obtain SHA
C. Analysis
D. Establishment
Answer» B. Obtain SHA
2070.

It is well known that ________ cause maximum flocculation shortly after their addition to fiber slurries.

A. Anionic polymer
B. Cationic polymer
C. Lyophobic
D. Lyophilic
Answer» C. Lyophobic
2071.

Before the pressure drop stabilizes after the bed gets fluidized, what is the position of pressure drop before reaching minimum fluidization?

A. Above the constant
B. Below the constant
C. Equal
D. Hard to tell
Answer» B. Below the constant
2072.

Which iron is formed when the melt is frozen?

A. Alpha
B. Beta
C. Gamma
D. Delta
Answer» E.
2073.

The computation of e-closure of n-states takes ______ time.

A. O(n<sup>2</sup>)
B. O(n<sup>3</sup>)
C. O(2<sup>n</sup>)
D. None of the mentioned
Answer» C. O(2<sup>n</sup>)
2074.

Who appoints the chairman of the Central Pollution Control Board?

A. Central Government
B. State Government
C. Governor of the State
D. President of India
Answer» B. State Government
2075.

Which of the following is not an activity of Structured Analysis (SA) ?

A. Functional decomposition
B. Transformation of a textual problem description into a graphic model
C. All the functions represented in the DFD are mapped to a module structure
D. All of the mentioned
Answer» D. All of the mentioned
2076.

Choose the correct statement:

A. Please open the light.
B. Please shut the light.
C. Please turn on the light.
D. Please shut down the light.
Answer» D. Please shut down the light.
2077.

The ultimate bearing capacity and the net ultimate capacity are connected by the relation____________

A. qf = qnf +/- σ̅ and qf = qf – σ̅
B. qf = qnf – σ̅
C. None of the mentioned
D. All of the mentioned
Answer» B. qf = qnf ‚Äö√Ñ√∂‚àö√ë‚àö¬® ‚âà√¨‚àö√¢‚àö√â‚àö√±
2078.

If there exist no integer x such that x2 ≡ q (mod n). then q is called:$

A. Quadratic Residue
B. Quadratic Nonresidue
C. Pseudoprime
D. None of the mentioned
Answer» C. Pseudoprime
2079.

What is the total capacity possessed by ferrous Indian foundries?

A. 1,00,000 tons
B. 1,50,000 tons
C. 2,00,000 tons
D. 2,50,000 tons
Answer» E.
2080.

Bacteria can be grown on the dry surface of skin.

A. True
B. False
Answer» C.
2081.

____________ due to random fluctuations caused by thermal and other noise sources appear as broad continuous distribution localized about the output signal.

A. Phase noise
B. White noise
C. Thermal noise
D. Shot noise
Answer» B. White noise
2082.

The motor used as the binding material in the masonry construction shrinks and gets compressed when loaded excessively before it has fully set which leads to the __________

A. Unequal settlement of the sub-soil
B. Lateral pressure on the superstructure
C. Unequal settlement of the masonry
D. Atmospheric action
Answer» D. Atmospheric action
2083.

Use case description contents includes ?

A. Use case name and number
B. Actors
C. Stakeholder and needs
D. All of the mentioned
Answer» E.
2084.

The charge build up in a capacitor is due to

A. Conduction current density
B. Displacement current density
C. Polarisation
D. Magnetization
Answer» C. Polarisation
2085.

What is Presentation?

A. Interaction with user
B. Understanding purpose of the system
C. It is the function that every interactive system must support
D. None of the mentioned
Answer» B. Understanding purpose of the system
2086.

Umbilical arteries carry __ blood to the placenta.

A. oxygenated
B. deoxygenated
C. mixed maternal and fetal
D. no
Answer» C. mixed maternal and fetal
2087.

What is the Eutectic reaction at 1146°C?$

A. L (0.53% C) + δ(0.09% C) → γ(0.17% C)
B. L (4.3% C) → γ(2.1 % C) + Fe<sub>3</sub>C (6.67% C)
C. γ (0.8 % C) → α (0.025% C) + Fe<sub>3</sub>C (6.67% C)
D. L (0.53% C) + δ(0.09% C) → γ (0.8 % C)
Answer» C. ‚âà√≠‚Äö√¢‚Ä¢ (0.8 % C) ‚Äö√Ñ√∂‚àö√∫‚àö‚↠‚âà√≠¬¨¬± (0.025% C) + Fe<sub>3</sub>C (6.67% C)
2088.

A vibrating string of length l under a tension T resonates with a mode corresponding to the first overtone (third harmonic) of an air column of length 75cm inside a tube closed at one end. The string also generates 4 beats per second when excited along with a tuning fork of frequency n. Now when the tension of the string is slightly increased the number of sound in sir to 340m/s, the frequency n of the tuning fork in Hz is

A. 344
B. 336
C. 117.3
D. 109.3
Answer» B. 336
2089.

Choose the incorrect statement for prehybridization mixture.

A. The function of it is to carry out specific binding
B. It constitutes of non-labelled DNA of non-specific sequence which is obtained from salmon or herring testes or sperm
C. It is added in small amount
D. It is carried out before the hybridization is carried out
Answer» B. It constitutes of non-labelled DNA of non-specific sequence which is obtained from salmon or herring testes or sperm
2090.

Which of the following is true about secondary path?

A. lateral displacement increases indefinitely at constant load
B. lateral displacement decreases indefinitely at constant load
C. lateral displacement remains same at constant load
D. lateral displacement increases indefinitely and decreases at constant load
Answer» B. lateral displacement decreases indefinitely at constant load
2091.

What does the term ‘immutable’ means in term of string objects?$

A. We can modify characters included in the string
B. We cannot modify characters contained in the string
C. We cannot perform various operation of comparison,inserting,appending etc
D. None of the mentioned
Answer» C. We cannot perform various operation of comparison,inserting,appending etc
2092.

What is the size of the swap file in Windows 3.1?

A. 25 Mbytes
B. 30 Mbytes
C. 50 Mbytes
D. 100 Mbytes
Answer» C. 50 Mbytes
2093.

The pseudo-random testing has

A. high cost
B. less development time
C. low cost but more testing time
D. low cost and less testing time
Answer» C. low cost but more testing time
2094.

The nitration in paraffinic produces ?

A. Mononitroparaffins
B. Dinitroparaffins
C. Trinitroparaffins
D. All of the mentioned
Answer» B. Dinitroparaffins
2095.

infinite loop

A. 0
B. no output
C. error
Answer» B. no output