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.

2051.

In a single slider crank chain

A. each of the four pairs is a turning pair
B. one is a turning pair and three are sliding pairs
C. two are turning pairs and two are sliding pairs
D. three are turning pairs and one is a sliding pair
Answer» E.
2052.

The characteristic impedance of a cable of length 1m is 50Ω. What is the characteristic impedance of the same cable of length 100m?$

A. 100Ω
B. 50Ω
C. 25Ω
D. 0.1Ω
Answer» C. 25‚âà√≠¬¨¬©
2053.

The internal power factor angle Ψ is between$

A. Ef and Ia
B. Ia and field flux
C. Ef and Vt
D. Vt and Ia
Answer» B. Ia and field flux
2054.

The maximum credible accident (MCA) is a:

A. Nuclear containment structures
B. Explosive container
C. Hydrogen container
D. Mica container
Answer» B. Explosive container
2055.

How is the oxygen content monitored in blood?

A. By Korotkoff Sounds
B. By Pulse Oximetry
C. By Fluorescence
D. By luminescence
Answer» C. By Fluorescence
2056.

A physical quantity is recorded to preserve the details.

A. True
B. False
Answer» B. False
2057.

How many polymerases are present in a replication fork?

A. 2
B. 3
C. 4
D. 5
Answer» C. 4
2058.

A postponed process runs when ___________

A. All the other processes have completed
B. After completion of one particular process
C. Concurrently with all other processes
D. First of all processes
Answer» B. After completion of one particular process
2059.

Dolly, the first animal produced by cloning is a

A. Cow
B. Sheep
C. Rat
D. Dog
Answer» C. Rat
2060.

What is the advantage for Linux users using R?

A. They get a command sequence to install the particular Linux flavor
B. They get a compiled installer
C. All of the mentioned
D. None of the mentioned
Answer» B. They get a compiled installer
2061.

Why ground water monitoring is important in control of water pollution?

A. To provide more quantity of water
B. To increase the chemical contains in the water
C. To provide good quality of water
D. To reduce the amount of water supplying from ground water
Answer» D. To reduce the amount of water supplying from ground water
2062.

How many propagation reactions occur simultaneously in a binary copolymerization process?

A. 2
B. 4
C. 1
D. 3
Answer» C. 1
2063.

Which principle is used for calculating the centre of pressure?

A. Principle of momentum
B. Principle of conservation of energy
C. Principle of balancing of momentum
D. None of the mentioned
Answer» D. None of the mentioned
2064.

What is the concept of analysis method?

A. the choice of dimension alone is made by designer and provided to computer
B. the choice of dimension and materials are made by designer and provided to computer
C. the choice of dimension, materials and types of construction are made by designer and provided to computer
D. the choice of types of construction are made by designer and provided to computer
Answer» D. the choice of types of construction are made by designer and provided to computer
2065.

Which of the following is not a Version management feature?

A. Version and release identification
B. Build script generation
C. Project support
D. Change history recording
Answer» C. Project support
2066.

The tube at the exit of the nozzle increases the _______

A. Temperature
B. Pressure
C. Volume of the flow
D. Density of flow
Answer» C. Volume of the flow
2067.

The myisamchk variable that represents the size of buffer used to hold index blocks is _____________

A. key_buffer_size
B. read_buffer_size
C. sort_buffer_size
D. write_buffer_size
Answer» B. read_buffer_size
2068.

Which of the following is not produced using impression die forging?

A. Levers
B. Handles
C. Gears
D. Turbine blades
Answer» C. Gears
2069.

If some important details are in the view it is sown by the ______ line.

A. section line
B. chain line
C. dashed line
D. double line
Answer» D. double line
2070.

Core magnetizing current is __________________

A. i<sub>1</sub>-i<sub>2</sub>/a
B. i<sub>1</sub>+i<sub>2</sub>/a
C. i<sub>1</sub>/a-i<sub>2</sub>/a
D. i<sub>1</sub>/a+i<sub>2</sub>/a
Answer» B. i<sub>1</sub>+i<sub>2</sub>/a
2071.

The beam-width becomes narrower on

A. Increasing frequency
B. Increasing antenna size
C. Increasing frequency & antenna size
D. None of the mentioned
Answer» D. None of the mentioned
2072.

_________ represents the loss of material from the original feed stock to the recovered product.

A. Binder
B. Flocculation
C. Shrinkage
D. Spot
Answer» D. Spot
2073.

Which type of roller is most suitable for soil compaction?

A. Smooth roller
B. Sheep foot roller
C. Pneumatic roller
D. Hydraulic roller
Answer» C. Pneumatic roller
2074.

POCSAG stands for ________

A. Post Office Code Standardization Advisory Group
B. Post Office Common Standardization Advisory Group
C. Pager Office Code Standardization Advisory Group
D. Pager Office Common Standardization Advisory Group
Answer» B. Post Office Common Standardization Advisory Group
2075.

The flocculated structure of compacted dry soil is broken due to_____________

A. High strains
B. Low water content
C. Low strains
D. Dry density
Answer» B. Low water content
2076.

The strength of the resulting concrete is _______ % lower than when dry aggregate is used for the same content.

A. 5-10
B. 10-15
C. 15-20
D. 0-5
Answer» B. 10-15
2077.

CLUSTALW is a more recent version of CLUSTAL with the W standing for ________

A. weakening
B. winding
C. weighting
D. wiping
Answer» D. wiping
2078.

Spermatogenesis is promoted by ___________

A. Estrogen
B. Progesterone
C. Testosterone
D. Oxytocin
Answer» D. Oxytocin
2079.

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 top view for previous and later one will be.

A. Triangle, triangle
B. irregular shape of circle and triangle, triangle
C. triangle, irregular shape of circle and triangle
D. circle, triangle
Answer» B. irregular shape of circle and triangle, triangle
2080.

Control charts are the part of ____ step of DMAIC process.

A. Define
B. Measure
C. Act
D. Control
Answer» E.
2081.

The DROP DATABASE statement must run in ________ mode?

A. Autocommit
B. Commit
C. Readcommit
D. None of the mentioned
Answer» B. Commit
2082.

Which, among the following, have negative susceptibility?

A. Diamagnetic
B. Paramagnetic
C. Ferromagnetic
D. Not a magnetic substance
Answer» B. Paramagnetic
2083.

The interactive element audio with the attribute controls must not appear as a descendant of which element?

A. a
B. button
C. audio
D. both a and button
Answer» E.
2084.

What is the main reason for suggesting fluidized bed for oil extraction?

A. Low oil content
B. High oil content
C. Presence of impurities
D. None of the mentioned
Answer» B. High oil content
2085.

At room temperature, the rms speed of the molecules of a certain diatomic gas is found to be 1920ms-1. The gas is

A. H<sub>2</sub>
B. F<sub>2</sub>
C. O<sub>2</sub>
D. Cl<sub>2</sub>
Answer» B. F<sub>2</sub>
2086.

Gypsum plaster, or plaster of Paris, is produced by heating __________to about 300 °F.$

A. gypsum
B. clinker
C. calcium
D. lime
Answer» B. clinker
2087.

A plug and play storage device that simply plugs in the port of a computer is __________

A. Flash drive
B. Compact disk
C. Hard disk
D. CD
Answer» B. Compact disk
2088.

Zeroes are defined as:

A. Roots of the denominator of the closed loop transfer function
B. Roots of the numerator of the closed loop transfer function
C. Parts of the numerator
D. Parts of the denominator
Answer» C. Parts of the numerator
2089.

_________ command line utility allows us to perform specific interactions with Intel IoT Analytics.

A. Iotkit-admin
B. SSH Terminal
C. Local agent
D. Daemon
Answer» B. SSH Terminal
2090.

Which of the following crystals are polished to act as the cut-off reflector?

A. Quartz
B. Beryllium
C. Silicon
D. Lithium
Answer» D. Lithium
2091.

GATC sequence on either side of the mismatch can help in MMR.

A. True
B. False
Answer» B. False
2092.

The portion of flue gases carried away to produce draught could be utilized to _______

A. Heat the air entering furnace
B. Blow out the combustion products such as soot and ash
C. Heat the fuel in ash chamber
D. Support the combustion
Answer» B. Blow out the combustion products such as soot and ash
2093.

_____ lowers the retarding effect of the solute/foreign atoms.

A. Increase in temperature
B. Decrease in temperature
C. Increase in amount of solute atoms
D. Decrease in size of solute atoms
Answer» B. Decrease in temperature
2094.

The number of possible signal in M-ary signalling is given by M and M=_____, where n is an integer.

A. n
B. 2n
C. 2n
D. n2
Answer» D. n2
2095.

If a DC shunt motor is working at full load and if shunt field circuit suddenly opens _____________________

A. Will make armature to take heavy current, possibly burning it
B. Will result in excessive speed, possibly destroying armature due to excessive centrifugal stresses
C. Nothing will happen to motor
D. Motor will come to stop
Answer» B. Will result in excessive speed, possibly destroying armature due to excessive centrifugal stresses
2096.

Which of the following measurement defines a measurement in points?

A. px
B. in
C. em
D. pt
Answer» E.
2097.

The in phase combining of power at the coupled port is achieved by means of a _______

A. Matching network
B. A small slot
C. Quarter Wave transformer
D. None of the mentioned
Answer» C. Quarter Wave transformer
2098.

Calculate potential of a metal plate of charge 28C and capacitance 12 mF.

A. 3.33 kohm
B. 2.33 kohm
C. 3.33 Mohm
D. 2.33 Mohm
Answer» C. 3.33 Mohm
2099.

The starting address is denoted using _____ directive.

A. EQU
B. ORIGIN
C. ORG
D. PLACE
Answer» D. PLACE
2100.

____________ is collected during engine startup time, when the catalytic converter is cold, and then later released back into the exhaust flow when the converter is hot.

A. HC
B. CO
C. CO<sub>2</sub>
D. H<sub>2</sub>O
Answer» B. CO