2242 + Mcqs in Quiz Page 19 McqOptions

901.	For the step-down chopper shown in the figure below, dc source voltage = 230 V and the voltage drop across the chopper = 2 V. Find the value of rms output voltage for a duty cycle of 0.4.
A.	91.2 V
B.	230 V
C.	144.2 V
D.	145 V
Answer» D. 145 V

Discussion

902.	For a step-down chopper shown in the figure below, dc source voltage = 230 V and the voltage drop across the chopper = 2 V. Find the value of average output voltage for a duty cycle of 0.4.
A.	230 V
B.	92 V
C.	90 V
D.	91.2 V
Answer» E.

Discussion

903.	Polymerization of dNTP by DNA polymerase is in 3’ → 5’ direction.
A.	True
B.	False
Answer» C.

Discussion

904.	How is the strength of the interaction between primase and helicase which regulates the length of Okazaki fragments?
A.	Weak association short fragment
B.	Strong association short fragment
C.	Strong association long fragment
D.	Does not depend on strength of association
Answer» C. Strong association long fragment

Discussion

905.	Association of primase with DNA template is brought about by the interaction of primase with _________________
A.	Dna polymerase III
B.	Clamp-loader complex
C.	Helicase and SSB protein
D.	τ protein
Answer» D. τ protein

Discussion

906.	Binding of polymerase III and helicase ensures helicase efficiency.
A.	True
B.	False
Answer» B. False

Discussion

907.	DNA polymerase III holoenzyme does not need to interact with the helicase during replication.
A.	True
B.	False
Answer» C.

Discussion

908.	The formation of the phosphodiester bond is an example of _________ reaction.
A.	SN1
B.	SN2
C.	E1
D.	E2
Answer» C. E1

Discussion

909.	A complete DNA polymerase III holoenzyme contains ____________ subunits.
A.	2
B.	4
C.	6
D.	8
Answer» D. 8

Discussion

910.	With respect to DNA polymerase holoenzyme pick the odd one out.
A.	2 copies of DNA polymerase III
B.	5 protein γ complex
C.	Presence of ATP
D.	Presence of DNA
Answer» E.

Discussion

911.	Subtitle tracks and caption tracks to be specified for audio and video elements can be added using which of the following element?
A.	sink
B.	track
C.	stable
D.	caption
Answer» C. stable

Discussion

912.	Which of the following element marks the ruby text component of a ruby annotation?
A.	r
B.	rt
C.	ruby
D.	rubytxt
Answer» C. ruby

Discussion

913.	Which element(s) represents a section of a document that links to other documents?
A.	navigation
B.	anchor tag
C.	nav
D.	option
Answer» D. option

Discussion

914.	Which element represents marked or highlighted text for reference purposes?
A.	highlight
B.	mark
C.	strong
D.	blink
Answer» C. strong

Discussion

915.	The World Wide Web’s markup language has always been HTML.
A.	True
B.	False
Answer» B. False

Discussion

916.	Which type attribute of input element sets the element’s value to a string representing a number?
A.	range
B.	email
C.	file
D.	date
Answer» B. email

Discussion

917.	All elements are identified by their __________ and are marked up using either start tags and end tags or self-closing tags.
A.	attribute name
B.	tag name
C.	class name
D.	none of the mentioned
Answer» C. class name

Discussion

918.	Match the sheet resistance value for the following region in diffused resistor
A.	1-I, 2-ii, 3-iii
B.	1-ii, 2-I, 3-iii
C.	1-iii, 2-I, 3-ii
D.	1-iii, 2-ii, 3-iView Answer
Answer» C. 1-iii, 2-I, 3-ii

Discussion

919.	If a 25Ω diffused resistor is to be designed for an emitter resistor, determine the pattern in which it is fabricated?
A.	20mil long by 5mil wide
B.	25mil long by 1mil wide
C.	5mil long by 1mil wide
D.	16mil long by 4mil wide
Answer» C. 5mil long by 1mil wide

Discussion

920.	Consider a 52cm×52cm material of uniform resistivity 100Ωm and thickness 3cm. Find the area and resistance of this sheet of material.
A.	16 m2, 1.923 Ω/square
B.	8112 cm2, 1.733 Ω/square
C.	156 cm2, 33.33 Ω/square
D.	901 cm2, 3.333 Ω/square
Answer» D. 901 cm2, 3.333 Ω/square

Discussion

921.	Determine the formula for sheet resistance (Rs).
A.	R×L×W
B.	R×(L×ρ)/W
C.	R×(W/L)
D.	R×(W×ρ)/L
Answer» D. R×(W×ρ)/L

Discussion

922.	The number of leads in schottky barrier diode are
A.	Four
B.	Three
C.	Two
D.	Six
Answer» D. Six

Discussion

923.	1.5 μg of enzyme gives a vmax of 3 μmol product produced per minute. What is the turnover number for this enzyme?
A.	100 sec-1
B.	200 sec-1
C.	1000 sec-1
D.	2000 sec-1
Answer» D. 2000 sec-1

Discussion

924.	The concept of “induced fit” refers to the fact that _______
A.	When a substrate binds to an enzyme, the enzyme induces a loss of water (desolvation) from the substrate
B.	Substrate binding may induce a conformational change in the enzyme, which then brings catalytic groups into proper orientation
C.	Enzyme-substrate binding induces an increase in the reaction entropy, thereby catalyzing the reaction
D.	Enzyme specificity is induced by enzyme-substrate binding
Answer» C. Enzyme-substrate binding induces an increase in the reaction entropy, thereby catalyzing the reaction

Discussion

925.	What competes with substrate for active site?
A.	Competitive inhibition
B.	Uncompetitive inhibition
C.	Non-competitive inhibition
D.	Pure Non-competitive inhibition
Answer» B. Uncompetitive inhibition

Discussion

926.	Which of the following state represents the condition – “Initial mixing of E+S, while [ES] builds up”.
A.	Enzyme is saturated with substrate
B.	Pre- Steady state
C.	Steady – state
D.	Steady-state kinetics
Answer» C. Steady – state

Discussion

927.	What is the unit of catalytic efficiency kcat/Km?
A.	conc-1 time-1
B.	conc time
C.	conc-2time-2
D.	conc time-1
Answer» B. conc time

Discussion

928.	Km is directly proportional to the rate of enzyme binding?
A.	True
B.	False
Answer» C.

Discussion

929.	Which plot represents the following equation?\(\frac{s}{v} = \frac{K_m}{v_{max}} + \frac{s}{v_{max}}\)
A.	Line-weaver burk plot
B.	Eadie-Hofstee plot
C.	Michaelis-menten plot
D.	Langmuir plot
Answer» E.

Discussion

930.	Which stage is preferred for the estimation of the rate of enzymatic reaction?
A.	Initial
B.	Mid
C.	Final
D.	Stationary
Answer» B. Mid

Discussion

931.	Which of the following adds rigidity to the cap in glass closure?
A.	Curl
B.	Face
C.	Lug
D.	Reverse
Answer» B. Face

Discussion

932.	Which of the following is main function of lug-type or twist cap?
A.	Closures to retain internal pressure
B.	Closures to contain and protect contents
C.	Closures to maintain vacuum inside container
D.	Closures to secure contents inside containe
Answer» D. Closures to secure contents inside containe

Discussion

933.	Gasket in glass is also known as ________
A.	liner
B.	face
C.	thread
D.	reverse
Answer» B. face

Discussion

934.	______ is the spiral groove on the closure.
A.	Face
B.	Skirt
C.	Panel
D.	Thread
Answer» E.

Discussion

935.	Silica is combined with lead in glass due to which of the following reasons?
A.	Reduce the leaching of sodium
B.	Hardness and durability
C.	Clarity and brilliance
D.	Preventing the glass from dissolving in water
Answer» D. Preventing the glass from dissolving in water

Discussion

936.	Silica is combined with _______ to increase hardness and durability in glass.
A.	boron
B.	alumina
C.	lead
D.	alkali flux
Answer» C. lead

Discussion

937.	_______ of the container is the portion that is made in the body-mold.
A.	Head
B.	Shoulder
C.	Cavity
D.	Body
Answer» E.

Discussion

938.	______ is the part of the bottle that holds the cap or closure.
A.	Finish
B.	Body
C.	Fissure
D.	Seal
Answer» B. Body

Discussion

939.	_______ mild form of weathering in glass.
A.	Scaling
B.	Surface bloom
C.	Tempering
D.	Leveling
Answer» C. Tempering

Discussion

940.	________ is characterized by acid attack in glass.
A.	Weathering
B.	Scaling
C.	Leaching
D.	Surface bloom
Answer» D. Surface bloom

Discussion

941.	What is the basic structural unit of silica in glass?
A.	Tetrahedron
B.	Octahedron
C.	Square bipyramidal
D.	Trigonal bipyramidal
Answer» B. Octahedron

Discussion

942.	_______ is characterized by alkaline attack in glass.
A.	Leaching
B.	Etching
C.	Scaling
D.	Surface bloom
Answer» C. Scaling

Discussion

943.	The glass surface is subject to corrosion due to the presence of ______
A.	magnesium
B.	potassium
C.	sodium
D.	calcium
Answer» D. calcium

Discussion

944.	The main component of glass is _____
A.	silica
B.	quartz
C.	sand
D.	flint
Answer» B. quartz

Discussion

945.	Glass is a super cooled liquid.
A.	True
B.	False
Answer» B. False

Discussion

946.	_________ pointing is made by making a projection in the form of V-shape.
A.	V-pointing
B.	Struck pointing
C.	Weathered pointing
D.	Surface pointing
Answer» B. Struck pointing

Discussion

947.	The below figure shows ___________
A.	struck pointing
B.	v-pointing
C.	weathered pointing
D.	beaded pointing
Answer» E.

Discussion

948.	Cement plaster is a mixture of suitable plaster, sand _____________ and water.
A.	fine aggregate
B.	portland cement
C.	cement
D.	plaster
Answer» C. cement

Discussion

949.	Laths are about an inch wide, and are made in three thicknesses; single (5 to 6 inch thick), lath and a half (4 inch thick), and double (3–5 inch thick).
A.	True
B.	False
Answer» C.

Discussion

950.	One differentiates between interior and exterior fireproofing. Exterior products are typically less substantial, with lower densities and lower cost. Interior products have to withstand more extreme fire and other environmental conditions.
A.	True
B.	False
Answer» C.

Discussion

Explore topic-wise MCQs in Php.

For the step-down chopper shown in the figure below, dc source voltage = 230 V and the voltage drop across the chopper = 2 V. Find the value of rms output voltage for a duty cycle of 0.4.

For a step-down chopper shown in the figure below, dc source voltage = 230 V and the voltage drop across the chopper = 2 V. Find the value of average output voltage for a duty cycle of 0.4.

Polymerization of dNTP by DNA polymerase is in 3’ → 5’ direction.

How is the strength of the interaction between primase and helicase which regulates the length of Okazaki fragments?

Association of primase with DNA template is brought about by the interaction of primase with _________________

Binding of polymerase III and helicase ensures helicase efficiency.

DNA polymerase III holoenzyme does not need to interact with the helicase during replication.

The formation of the phosphodiester bond is an example of _________ reaction.

A complete DNA polymerase III holoenzyme contains ____________ subunits.

With respect to DNA polymerase holoenzyme pick the odd one out.

Subtitle tracks and caption tracks to be specified for audio and video elements can be added using which of the following element?

Which of the following element marks the ruby text component of a ruby annotation?

Which element(s) represents a section of a document that links to other documents?

Which element represents marked or highlighted text for reference purposes?

The World Wide Web’s markup language has always been HTML.

Which type attribute of input element sets the element’s value to a string representing a number?

All elements are identified by their __________ and are marked up using either start tags and end tags or self-closing tags.

Match the sheet resistance value for the following region in diffused resistor

If a 25Ω diffused resistor is to be designed for an emitter resistor, determine the pattern in which it is fabricated?

Consider a 52cm×52cm material of uniform resistivity 100Ωm and thickness 3cm. Find the area and resistance of this sheet of material.

Determine the formula for sheet resistance (Rs).

The number of leads in schottky barrier diode are

1.5 μg of enzyme gives a vmax of 3 μmol product produced per minute. What is the turnover number for this enzyme?

The concept of “induced fit” refers to the fact that _______

What competes with substrate for active site?

Which of the following state represents the condition – “Initial mixing of E+S, while [ES] builds up”.

What is the unit of catalytic efficiency kcat/Km?

Km is directly proportional to the rate of enzyme binding?

Which plot represents the following equation?\(\frac{s}{v} = \frac{K_m}{v_{max}} + \frac{s}{v_{max}}\)

Which stage is preferred for the estimation of the rate of enzymatic reaction?

Which of the following adds rigidity to the cap in glass closure?

Which of the following is main function of lug-type or twist cap?

Gasket in glass is also known as ________

______ is the spiral groove on the closure.

Silica is combined with lead in glass due to which of the following reasons?

Silica is combined with _______ to increase hardness and durability in glass.

_______ of the container is the portion that is made in the body-mold.

______ is the part of the bottle that holds the cap or closure.

_______ mild form of weathering in glass.

________ is characterized by acid attack in glass.

What is the basic structural unit of silica in glass?

_______ is characterized by alkaline attack in glass.

The glass surface is subject to corrosion due to the presence of ______

The main component of glass is _____

Glass is a super cooled liquid.

_________ pointing is made by making a projection in the form of V-shape.

The below figure shows ___________

Cement plaster is a mixture of suitable plaster, sand _____________ and water.

Laths are about an inch wide, and are made in three thicknesses; single (5 to 6 inch thick), lath and a half (4 inch thick), and double (3–5 inch thick).

One differentiates between interior and exterior fireproofing. Exterior products are typically less substantial, with lower densities and lower cost. Interior products have to withstand more extreme fire and other environmental conditions.