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.

2001.

In a wind tunnel, the section with minimum area is called as __________

A. exit
B. nozzle
C. inlet
D. throat
Answer» E.
2002.

Seeheim and MVC are the graphical evidence of what assertion?

A. Qualities are not that abstract to be directly useful
B. Qualities are too abstract to be directly useful
C. Qualities are too abstract to be indirectly used
D. None of the mentioned
Answer» C. Qualities are too abstract to be indirectly used
2003.

Part 264 of closure and post-closure rules are applied to ___

A. Industries
B. Facilities
C. Permitted facilities
D. TSDF
Answer» D. TSDF
2004.

Which of the following is not a casting performance of phenolic – urethane cores?$

A. Moderate hot strength
B. Good hardenability
C. Surface finish
D. Low nitrogen level
Answer» C. Surface finish
2005.

The end of all tRNAs is ___________

A. 5’ ACC 3’
B. 5’ CCA 3’
C. 3’ CAC 5’
D. 3’ GAG 5’
Answer» C. 3‚Äö√Ñ√∂‚àö√ë‚àö¬• CAC 5‚Äö√Ñ√∂‚àö√ë‚àö¬•
2006.

The cold junction in a thermoelectric pyrometer is maintained at ________

A. 12 F
B. 32 F
C. 55 F
D. 80 F
Answer» C. 55 F
2007.

The angle between the tooth trace and an element of the pitch cone, corresponding to helix angle in helical gears is

A. shaft angle
B. pitch angle
C. spiral angle
D. none of the mentioned
Answer» D. none of the mentioned
2008.

A short-term environmental impact assessment (EIA) has a time period of:

A. 2-5 years
B. 10-15 years
C. 5-10 years
D. 5-7 years
Answer» D. 5-7 years
2009.

What is the purpose of the parameter location?

A. Specifies agent location
B. Specifies speed
C. Specifies browser
D. All of the mentioned
Answer» E.
2010.

Which method of representation has two representations for ‘0’?$

A. Sign-magnitude
B. 1’s complement
C. 2’s complement
D. None of the mentioned
Answer» B. 1‚Äö√Ñ√∂‚àö√ë‚àö¬•s complement
2011.

Which of the following is a product formed in Claisen condensation?

A. β- ester
B. β-ketone
C. β-keto ester
D. Y-diketone
Answer» D. Y-diketone
2012.

Earth electrode provides ____________

A. high resistance
B. medium resistance
C. low resistance
D. very high resistance
Answer» D. very high resistance
2013.

Writing on the trailing edge of the clock pulse and reading on the leading edge of the clock pulse is done when

A. CPHA is set
B. CPHA is reset
C. CPOL is set
D. CPOL is reset
Answer» C. CPOL is set
2014.

________ oscillates as one ear peaks in perception before the other takes a turn.

A. Oscillations
B. Auditory decision making
C. Auditory perception
D. Auditory perception and oscillations
Answer» D. Auditory perception and oscillations
2015.

What are the factors on which the sizes of bands placed on depend?

A. length of air gap
B. method of cooling of armatures
C. length of air gap and method of cooling of armatures
D. method of cooling of armatures or length of air gap
Answer» D. method of cooling of armatures or length of air gap
2016.

The most common filter aid is _________

A. Diatomaceous earth
B. Calcium silicate
C. Sodium carbonate
D. Silica gel
Answer» B. Calcium silicate
2017.

The carrier wave is a _________

A. tan wave
B. cosec wave
C. sine wave
D. cot wave
Answer» D. cot wave
2018.

Which of the following problems were reduced to Knapsack?

A. Exact Cover
B. Max Cut
C. 0-1 integer programming
D. None of the mentioned
Answer» B. Max Cut
2019.

What is the head loss considered for the disc filter while designing it?

A. 75-150 mm
B. 40-70 mm
C. 150-175 mm
D. 175-200 mm
Answer» B. 40-70 mm
2020.

The vertical-syphon reboilers are not preferred because of

A. Fouling
B. Overheat
C. Large tubes
D. None of the mentioned
Answer» B. Overheat
2021.

If A is a subset of B:

A. Cardinality of A is greater than B
B. Cardinality of B is greater than A
C. Can’t say
D. None of the mentioned
Answer» C. Can‚Äö√Ñ√∂‚àö√ë‚àö¬•t say
2022.

What is this property of impulse response is called ___________

A. * h2(t) = h2(t) * h1(t)
B. Associative property
C. Commutative property
D. Distributive property
Answer» C. Commutative property
2023.

_____ generated during friction welding is coherent.

A. Burr
B. Molten metal
C. Flash curl
D. Fly ash
Answer» D. Fly ash
2024.

Progressively modified illumination intensity approach when combined with lithographic patterning, gives_____

A. straight macropores
B. straight micropores
C. sponge-like pSi
D. honeycomb like pattern
Answer» B. straight micropores
2025.

Which of the following substituent groups would render greater reactivity of a monomer?

A. ─COOH
B. ─OR
C. ─CH═CH<sub>2</sub>
D. ─CN
Answer» D. ‚Äö√Ñ√∂‚àö√Ü‚àö√ëCN
2026.

Which of the following term is best defined by the statement:”For a component to be composable, all external interactions must$

A.
B. Standardized
C. Independent
Answer» D.
2027.

Color raster display uses three electron guns, namely:

A. Red, green and blue
B. Red, green and yellow
C. White, blue and black
D. Red, black and white
Answer» B. Red, green and yellow
2028.

How much a laser beam can be expanded inside interferometer using grazing incidence interferometry?

A. 200 mm
B. 200 nm
C. 400 mm
D. 400 nm
Answer» B. 200 nm
2029.

Which of the following wrong about HMM GENE?

A. It is also an HMM-based web program
B. It uses a criterion called the conditional maximum likelihood to discriminate coding from non-coding features
C. HMM prediction is unbiased toward the locked region
D. If a sequence already has a sub-region identified as coding region, which may be based on similarity with cDNAs or proteins in a database, these regions are locked as coding regions
Answer» D. If a sequence already has a sub-region identified as coding region, which may be based on similarity with cDNAs or proteins in a database, these regions are locked as coding regions
2030.

The bit stuffing in the plesiochronous digital hierarchy is complex and uneconomic. State whether the given statement is true or false.

A. False
B. True
Answer» C.
2031.

A particles undergoes uniform circular motion. About which point on the plane of the circle, will the angular momentum of the particles remain conserved?

A. Centre of the circle
B. On the circumference of the circle
C. Inside the circle
D. Outside the circle
Answer» B. On the circumference of the circle
2032.

A successful design should not only satisfy requirements but also ensure:

A. Serviceability
B. Total cost
C. Critical period
D. Planning
Answer» B. Total cost
2033.

The rms value is 0.707 times the _________ value.

A. Peak
B. Instantaneous
C. Average
D. DC
Answer» B. Instantaneous
2034.

Which of the following is not an evidence of plastic action on the material?

A. Yield
B. Plastic flow
C. Fatigue
D. Creep
Answer» D. Creep
2035.

A rectangular cavity supports:

A. TEM mode of resonance
B. TM mode of resonance
C. TE mode of resonance
D. TE, TM modes of resonance
Answer» E.
2036.

If f(t) = eat sin(bt), then its Laplace transform is given by

A. s<sup>2</sup>-a<sup>2</sup> ⁄ (s – a)<sup>2</sup>
B. b ‚ÅÑ (s + a)<sup>2</sup> + b<sup>2</sup>
C. b ⁄ (s – a)<sup>2</sup> + b<sup>2</sup>
D. Indeterminate
Answer» D. Indeterminate
2037.

What is the jumping of impulses between the Nodes of Ranvir called?

A. Ionic Impulses Exchange
B. Alternative Depolarization
C. Saltatory Conduction
D. Impulse Jumping
Answer» D. Impulse Jumping
2038.

For any given substance, the amount of rotation does not depends upon

A. Wavelength of light used
B. Nature of the solvent
C. Temperature
D. Pressure
Answer» E.
2039.

Which type of wind turbines produce 100 kW or greater?

A. Large machines
B. Small machines
C. Medium machines
D. Remote Machines
Answer» B. Small machines
2040.

How can the gain roll off represented in dB/octave?

A. 12 dB/octave
B. 6 dB/octave
C. 10 dB/octave
D. 8 dB/octave
Answer» C. 10 dB/octave
2041.

You are asked to construct a massive dam, the type of cement you will use, is?

A. Ordinary Portland cement
B. Blast furnace slag cement
C. White cement
D. Low heat cement
Answer» E.
2042.

What is the total sideband power if there is 100% modulation?

A. half the carrier wave
B. twice the carrier wave
C. equal to the carrier wave
D. one-fourth of the carrier wave
Answer» B. twice the carrier wave
2043.

5-fluorocytosine is which type of antibiotic?

A. polyene
B. pyrimidine antimetabolites
C. imidazole
D. antibacterial
Answer» C. imidazole
2044.

Datagram networks mainly refers to

A. Connection oriented networks
B. Connection less networks
C. Telephone networks
D. Internetwork
Answer» C. Telephone networks
2045.

Large collection of files are called ____________

A. Fields
B. Records
C. Database
D. Sectors
Answer» D. Sectors
2046.

Which of the following has no effect on laser welding?

A. Plane of polarisation
B. Joint geometries
C. Shroud gas composition
D. Wavelength
Answer» B. Joint geometries
2047.

A common base transistor amplifier has an input resistance of 20Ω and output resistance of 100kΩ. If a signal of 400mV is applied between emitter and base, find the voltage amplification. Assume αac to be one.$

A. 20
B. 50
C. 30
D. 25
Answer» C. 30
2048.

The ______________ can cost you money, by sending text messages from your mobile phone numbers.

A. IM – Trojans
B. Backdoor Trojans
C. SMS Trojan
D. Ransom Trojan
Answer» D. Ransom Trojan
2049.

If i=1 j=2,k=3, then what is the value of the expression

A. > (i + 5))
B. 6
C. 5
D. 1
Answer» D. 1
2050.

Which of the following is not included in the friction head?

A. Head Loss in entire length of piping
B. Total static head
C. Head Loss in bend tees
D. Head Loss in valves
Answer» C. Head Loss in bend tees