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.

1251.

What is the rate controlling factor in high temperature creep?$

A. Dislocation glide
B. Grain boundary sliding
C. Dislocation climb
D. Slip
Answer» D. Slip
1252.

The type of operand that is not allowed to use in boolean instructions of 8051 is$

A. direct register operands
B. indirect register operands
C. immediate bit
D. none
Answer» D. none
1253.

When does capacitor is included in equivalent circuit of transformer?$

A. Transformer of very high VA rating
B. Transformer with very high frequency operation
C. Transformer with less VA
D. Never
Answer» C. Transformer with less VA
1254.

Which of the following is an advantage of AM systems in comparison to FM sysytems?$

A. Occupy less bandwidth
B. Superior performance in fading
C. Better noise immunity
D. Not susceptible to impulse noise
Answer» B. Superior performance in fading
1255.

Which of the following statements about mass spectrometers are not true?$

A. Time of flight mass spectrometer has the ability to record the entire mass spectrum at a time
B. Time of flight mass spectrometers have poor resolution
C. Conventional spectrometer detects only one peak at a time
D. All spectrometers have the ability to record the entire mass spectrum at a time
Answer» E.
1256.

Mutation in gale gene or cpsA-E gene cluster is used for:$

A. suppression of mucoidy
B. activation of mucoidy
C. suppression of UV sensitivity
D. both suppression of mucoidy and UV sensitivity
Answer» B. activation of mucoidy
1257.

A decision describes a node that is conditional, based on some logic that you inject.$

A. True
B. False
Answer» B. False
1258.

The genomic RNA is capped and polyadenylated, allowing the ____ gene to be translated.$

A. Gag
B. Pol
C. Env
D. Transcriptase
Answer» B. Pol
1259.

__________ absorbing water less than 4.50% of their weight can be used for Damp proofing.$

A. Bricks
B. Mortar
C. Stones
D. Cement concrete
Answer» B. Mortar
1260.

After completing closure operations facility has ___ days to inform EPA.$

A. 20
B. 40
C. 60
D. 80
Answer» D. 80
1261.

Which of the following does not take part in stabilizing the cloverleaf model of the tRNA?$

A. Base stacking
B. Base and sugar-phosphate backbone interaction
C. Ionic bond
D. Hydrogen bond
Answer» D. Hydrogen bond
1262.

What does Stefan-Boltzmann law for radiation pyrometers denote?$

A. W = KT<sup>4</sup>
B. W = KT
C. W = KT<sup>-4</sup>
D. W = K/T<sup>4</sup>
Answer» B. W = KT
1263.

The method in which the user’s receiver and the reference station are assumed not to be synchronized in time is called as _______$#

A. Redundancy method
B. Pseudoranging
C. Integrity method
D. Differential method
Answer» C. Integrity method
1264.

The most efficient method followed by computers to multiply two unsigned numbers is _______$

A. Booth algorithm
B. Bit pair recording of multipliers
C. Restoring algorithm
D. Non restoring algorithm
Answer» C. Restoring algorithm
1265.

Human decision making is at the rate of ________$

A. One-third of a second
B. One-fourth of a second
C. One-tenth of a second
D. One-sixth of a second
Answer» E.
1266.

What is the function of the bands when it is placed on overhang?$

A. used to reduce the centrifugal forces
B. used to increase the centrifugal forces
C. used to balance the centrifugal forces
D. used to withstand the centrifugal forces
Answer» E.
1267.

Which of the following is not the type of tubing?$

A. Acidflex tubing
B. Glass tubing
C. Polypropylene tubing
D. Tygon
Answer» D. Tygon
1268.

In order to access for end-to-end networking of optical channels to transparently convey information, the _____________ is employed in the OTN structure.$

A. Presentation layer
B. Session layer
C. OPU
D. OCh layer
Answer» E.
1269.

Select the incorrect statement from the following option.$

A. The physical properties of enatiomers are identical
B. In symmetrical environment, the chemical properties of enantiomers are identical
C. The enantiomers react at same rate and form products in same amounts in assymetrical environment
D. Enantiomers have different solubilities in same chiral solvent
Answer» D. Enantiomers have different solubilities in same chiral solvent
1270.

In which part do we find sensors and actuators?$

A. Fixed gears
B. Turbines
C. Control systems
D. Blades
Answer» D. Blades
1271.

What is the voltage transfer function of op-amp in s-domain.$

A. S×A/(s+ω<sub>o</sub>)
B. A/(s+ω<sub>o</sub>)
C. (A×ω<sub>o</sub>)/(s+ω<sub>o</sub>)
D. None of the mentioned
Answer» B. A/(s+‚âà√¨‚àö¬¢<sub>o</sub>)
1272.

Which of the following lasers is suitable for welding of components made of aluminium?$

A. Nd-YAG laser
B. Dye laser
C. Combination of CO and Excimer lasers
D. Combination of ruby and CO<sub>2</sub> lasers
Answer» D. Combination of ruby and CO<sub>2</sub> lasers
1273.

__________ is a powerful RAT build using the language Delphi 7.$

A. Stuxnet
B. T-Bomb
C. Beast
D. Zeus
Answer» D. Zeus
1274.

All the methods of _________ transformation require removal of fertilized eggs as the primary step.$

A. Somatic
B. Germline
C. Transgenic
D. Viral
Answer» C. Transgenic
1275.

How many types of absorbed impurities in water are there mainly?$

A. 2
B. 3
C. 4
D. 5
Answer» D. 5
1276.

Which of these is true ?$

A. A physical-level requirement is a statement about how a product must support stakeholders in achieving their goals or tasks
B. A operational-level requirement is a statement about the details of the physical form of a product, its physical interface to its environment, or its data formats
C. All of the mentioned
D. None of the mentioned
Answer» E.
1277.

Which refreshing techniques generate a recycled address?$

A. RAS
B. CBR
C. Distributed refresh
D. Software refresh
Answer» B. CBR
1278.

Equal number of p and n devices in a device will consume$

A. small area
B. large area
C. all of the mentioned
D. none of the mentioned
Answer» C. all of the mentioned
1279.

If x (t) approaches near the origin as t tends to infinity then the system is :$

A. Asymptotically stable
B. Asymptotically stable in the large
C. Stable
D. Unstable
Answer» B. Asymptotically stable in the large
1280.

Butter production now accounts for _______% of the total milk supply.$

A. 8
B. 15
C. 18
D. 25
Answer» D. 25
1281.

The brittle material directly fractures without yielding when it reaches ultimate strength material.$

A. True
B. False
Answer» B. False
1282.

If we select two points A and B on either side of obstacle and equal perpendiculars AC and BD are set out. Then AB is equal to?$

A. AC
B. CD
C. DA
D. BD
Answer» C. DA
1283.

Which is more efficient in the case of small samples to find out the shape and spread of the distribution?$

A. Histogram
B. Probability plots
C. Designed experiments
D. PDCA
Answer» C. Designed experiments
1284.

The circulation of water starts only after the engine has become hot enough to cause thermo-syphon.$

A. True
B. False
Answer» B. False
1285.

Froth contains air that blocks the pumps.$

A. True
B. False
Answer» B. False
1286.

Speed regulation of armature series control method is __________$

A. Very good
B. Zero
C. Poor
D. Cannot comment
Answer» D. Cannot comment
1287.

What can be done in order to prevent slugging in the fluidized bed?$

A. Baffles
B. Increase diameter
C. Proper design of distributor
D. All of the mentioned
Answer» E.
1288.

To what radius a silver strip 200 mm wide and 40 mm thick can be bent if the maximum stress in the ship is 80 N/mm2. Young’s modulus for Silver is 80×103 N/mm2.$#

A. 20m
B. 30m
C. 15m
D. 35m
Answer» B. 30m
1289.

Parent-child hierarchies are automatically detected by the _________ Wizard.$

A. Dimension
B. Cube
C. Dimension and Cube
D. None of the mentioned
Answer» D. None of the mentioned
1290.

How_many_minimum_numbers_of_zeros_are_there_in_‘3_x_3’_triangular_matrix?$#

A. 4
B. 3
C. 5
D. 6
Answer» C. 5
1291.

The_ratio_of_actual_mass_flow_through_the_nozzle_to_the_mass_flow_if_the_flow_were_isentropic_is?$

A. Coefficient of viscosity
B. Coefficient of velocity
C. Coefficient of discharge
D. None of the mentioned
Answer» D. None of the mentioned
1292.

In_greedy_approach_evaluation_function_is$

A. Heuristic function
B. Path cost from start node to current node
C. Path cost from start node to current node + Heuristic cost
D. Average of Path cost from start node to current node and Heuristic cost
Answer» B. Path cost from start node to current node
1293.

___________systems,_these_systems_have_to_utilize_efficient_encoding_of_information_because_their_transmissions_have_limited_bandwidth_during_broadcast.$

A. TV
B. Video color
C. Grey body
D. Red body
Answer» C. Grey body
1294.

The_buckling_strength_of_latticed_column_is_____________that_of_solid_column_having_ame_area_and_same_slenderness_ratio$

A. smaller than
B. greater than
C. equal to
D. cannot be compared
Answer» B. greater than
1295.

Neuronal_migration_is_the_method_by_which_neurons_travel_from_their_origin_to_their_final_position.$

A. True
B. False
Answer» B. False
1296.

What_is_called_for_a_scheme_to_protect_and_conserve_bio-diversity?$

A. Biosphere
B. Bio-reserve
C. Biotechnology
D. Bio-ecology
Answer» C. Biotechnology
1297.

Which_of_these_proposals_requires_fewer_parts_of_content?$

A. Long proposals
B. Short proposals
C. Lengthy proposals
D. Research proposals
Answer» C. Lengthy proposals
1298.

Which_of_the_following_is_a_secondary_deformation_process?$

A. Slip
B. Subgrain formation
C. Grain boundary sliding
D. Multiple slips
Answer» E.
1299.

The_mnemonic,_JNB_is_used_to_jump_to_the_specified_relative_address_only_if$

A. specified bit=1
B. specified bit=0
C. specified bit is non-recursive
D. none
Answer» B. specified bit=0
1300.

A_civil_engineer_has_to_deal_with_which_rock_in_majority_of_cases?$

A. Igneous rocks
B. Sedimentary rocks
C. Metamorphic rocks
D. Ultra-basic igneous rocks
Answer» C. Metamorphic rocks