Explore topic-wise MCQs in Php.

This section includes 2242 Mcqs, each offering curated multiple-choice questions to sharpen your Php knowledge and support exam preparation. Choose a topic below to get started.

1951.

How can we reduce the effluent volume of water to maintain its pollution level?

A. Increase the upstream flow by low flow augmentation
B. Decrease the upstream flow by low flow augmentation
C. Increase the upstream flow by high flow augmentation
D. Decrease the upstream flow by high flow augmentation
Answer» B. Decrease the upstream flow by low flow augmentation
1952.

What does the copolymer composition depend upon, in binary copolymerization?

A. feed monomer composition
B. initiator concentration
C. rate of polymerization
D. all of the mentioned
Answer» B. initiator concentration
1953.

In a vertically submerged plane surface, pressure at evbery point remains same

A. True
B. False
Answer» C.
1954.

How many different approaches are present in the computer aided design ?

A. 2
B. 3
C. 4
D. 5
Answer» D. 5
1955.

Which method recommends that very frequent system builds should be carried out with automated testing to discover software problems?

A. Agile method
B. Parallel compilation method
C. Large systems method
D. All of the mentioned
Answer» B. Parallel compilation method
1956.

How the ohmic contact is formed in metal semiconductor diode? (AL-Aluminium)

A. n<sup>+</sup> diffusion in p-region near AL lead
B. p<sup>+</sup> diffusion in p-region near AL lead
C. n<sup>+</sup> diffusion in n-region near AL lead
D. p<sup>+</sup> diffusion in n-region near AL lead
Answer» D. p<sup>+</sup> diffusion in n-region near AL lead
1957.

If the body is in equilibrium, but it having a rotational curled ray shown in the free body diagram then:

A. The diagram is wrong
B. Such rotations can’t be shown in the fbds(free body diagrams)
C. The ray shown may be correct, but the body is not said to be in equilibrium
D. The body is said to be in equilibrium only, as the other forces will cancel out that rotation
Answer» E.
1958.

Specific speed is used to characterize _______

A. Turbomachinery speed
B. Flow speed
C. Energy flow
D. Heat generated
Answer» B. Flow speed
1959.

Where does MySQL Enterprise Backup record details of each backup?

A. history_backup
B. backup_history
C. backlog_history
D. history_backlog
Answer» C. backlog_history
1960.

Which of the following are not operated in impression die forging?

A. Hammers
B. Presses
C. Tongs
D. Special purpose machines
Answer» D. Special purpose machines
1961.

Thin parts like stiffeners, webs, bolts, rivets, etc. are ________ if they are cut by the cutting plane along their axis.

A. not hatched
B. hatched
C. sectioned
D. not sectioned
Answer» B. hatched
1962.

Which of the following ratio is equal to N1/N2?

A. L<sub>1</sub>/L<sub>2</sub>
B. L<sub>2</sub>/L<sub>1</sub>
C. ‚àö (L<sub>1</sub>/L<sub>2</sub>)
D. ‚àö (L<sub>2</sub>/L<sub>1</sub>)
Answer» D. ‚Äö√Ñ√∂‚àö‚Ć‚àö‚àÇ (L<sub>2</sub>/L<sub>1</sub>)
1963.

Path loss Ls is dependent on

A. Signal power
B. Effective area
C. Wavelength
D. Antenna size
Answer» D. Antenna size
1964.

One of the biggest obstacles for utilizing recycled or secondary fiber is effective _________removal.

A. Fiber
B. Contaminant
C. Latex
D. Lignin
Answer» C. Latex
1965.

The unpaved shoulder usually consists of

A. Gravel
B. Sand
C. Bricks
D. Clay
Answer» B. Sand
1966.

Who invented the technology CDMA?

A. Qualcomm
B. Bell Labs
C. SAP Labs
D. AT&T
Answer» B. Bell Labs
1967.

What is a phase?

A. The substance which is physically distinct
B. The substance which is homogenous chemically
C. The substance which is both physically distinct and chemically homogenous
D. The substance which is both physically distinct and chemically heterogeneous
Answer» D. The substance which is both physically distinct and chemically heterogeneous
1968.

The shear strength of compacted clays depends upon____________

A. Dry density
B. Water content
C. Degree of saturation
D. Addition of admixtures
Answer» B. Water content
1969.

The density of concrete made with saturated aggregate is ___________

A. High
B. Low
C. Very high
D. Very low
Answer» B. Low
1970.

The CLUSTALX provides a graphic interface.

A. True
B. False
Answer» B. False
1971.

The ductus deferens is also known as ____________

A. Urethrea
B. Penis
C. Testis
D. Vas deferens
Answer» E.
1972.

A regular cone first placed in such a way its axis is perpendicular to V.P and next this is tilted such that its base is making some acute angle with V.P. The front view for previous and later one will be having same shape.

A. True
B. False
Answer» C.
1973.

The size of sample is 5 for a process. If the process standard deviation is 0.15 micron, and the mean of process is 1.5 micron, the standard deviation of the sample average will be ____

A. 0.0500
B. 0.1000
C. 0.6710
D. 0.0671
Answer» E.
1974.

Features provided by ALTER DATABASE statement do not include :

A. Deletes database
B. Modifies file
C. Changes the attributes of a database
D. Changes the database collation
Answer» B. Modifies file
1975.

Find the value of ‚àö10$

A. 3.1633
B. 3.1623
C. 3.1632
D. 3.1645
Answer» C. 3.1632
1976.

A ____________ element must have a start tag but must not have an end tag.

A. details
B. command
C. code
D. both details and command
Answer» C. code
1977.

At what temperature is the retort maintained in the fluidized bed for oil recovery?

A. 370-530 C
B. 120-250 C
C. 700-900 C
D. None of the mentioned
Answer» B. 120-250 C
1978.

A vessel contains a mixture of 1 mole of oxygen and 2 moles of nitrogen at 300 K. The ratio of the average rotational kinetic energy per O2 molecule to that per N2 molecule is

A. 1:1
B. 1: 2
C. 2:1
D. Depends on the moment of inertia of the two molecules
Answer» E.
1979.

33

A. 1
B. 0
C. .666
Answer» D.
1980.

Lime plaster is a mixture of calcium hydroxide and sand (or other inert fillers).

A. True
B. False
Answer» B. False
1981.

What is the full form of USB in Quiz?

A. Universal Signal Board
B. Universal Signal Bus
C. Universal Serial Bus
D. Universal Serial Board
Answer» D. Universal Serial Board
1982.

As zero moves sufficiently left from the origin the effect of zero becomes less pronounced.

A. True
B. False
Answer» B. False
1983.

We will not use command line utility to perform _________

A. proper communication with Intel IoT analytics
B. Obtain device id
C. Activate device
D. Send observations
Answer» E.
1984.

The suppression of high energy bremsstrahlung radiation improves which of the following?

A. Signal to background ratio
B. Accuracy
C. Sensitivity
D. Coherence
Answer» B. Accuracy
1985.

Which DNA polymerase plays a role in repair synthesis in BER in prokaryotes?

A. Pol I
B. Pol II
C. Pol III
D. Pol IV
Answer» B. Pol II
1986.

Determine the height of chimney above grate level. Where diameter of chimney is 1.75m and produces a draught of 1.8cms of water. Temperature of flue gases is 290oC. The flue gases formed per kg of fuel burnt are 23kg. Neglect the losses and assume atmospheric temperature as 20oC?

A. H = 23.28m
B. H = 18.56m
C. H = 32.77m
D. H = 41.92m
Answer» D. H = 41.92m
1987.

At the high temperatures normally associated with annealing, _____

A. grooves may form on the surface
B. irregularity in surface roughness may occur
C. unwanted bump may form
D. decrease in yield strength may occur
Answer» B. irregularity in surface roughness may occur
1988.

M-ary signalling techniques are not sensitive to timing jitters. State whether True or False.

A. True
B. False
Answer» C.
1989.

Speed of DC shunt motor is directly proportional to___________

A. Flux
B. Back emf
C. Terminal voltage
D. Armature resistance drop
Answer» C. Terminal voltage
1990.

Ribblet short-slot coupler consists of two waveguides that are separated by a distance “d”.$

A. True
B. False
Answer» C.
1991.

Find the dissipation factor when series resistance is 5 ohm and capacitive resistance is 10 unit.

A. 2
B. 0.5
C. 1
D. 0
Answer» C. 1
1992.

The constant can be declared using ____ directive.

A. DATAWORD
B. PLACE
C. CONS
D. DC
Answer» E.
1993.

A ____________ reduction of cold-start HC has been achieved.

A. 20%
B. 30%
C. 35%
D. 40%
Answer» D. 40%
1994.

_________ is used for combining those matchers which must both pass.

A. all
B. both
C. justTwo
D. matchTwo
Answer» C. justTwo
1995.

The holes which are left out after oxidation of silicon atoms enter the bulk silicon region.

A. True
B. False
Answer» B. False
1996.

Download copy, extract data from an open system done fraudulently is treated as _________

A. cyber-warfare
B. cyber-security act
C. data-backup
D. cyber-crime
Answer» E.
1997.

What is not a variable which affects tensile properties?

A. Gauge length
B. Temperature
C. Load
D. Strain rate
Answer» D. Strain rate
1998.

Mechanical properties of powder are influenced by _____

A. humidity
B. carrier gas
C. air velocity
D. type of mask used
Answer» B. carrier gas
1999.

Which of the following statements regarding sets is false ?

A. A X B = B X A
B. A X B ≠ B X A
C. n(A X B) = n(A) * n(B)
D. All of the mentioned
Answer» B. A X B ‚Äö√Ñ√∂‚àö¬¢‚Äö√тĆ B X A
2000.

The frictional resistance is ______ to the surface area of contact.

A. Inversely proportional
B. Directly proportional
C. Equal
D. Not equal
Answer» C. Equal