2242 + Mcqs in Quiz Page 20 McqOptions

951.	Instead of plastering entire surface of the masonry, special mortar finishing work is done to the exposed joints. This is called pointing.
A.	True
B.	False
Answer» B. False

Discussion

952.	Cracks in plastering may be caused by settlement of the building, by the use of inferior materials or by bad workmanship.
A.	True
B.	False
Answer» B. False

Discussion

953.	The following figure is a rubbed, keyed or grooved type of pointing.
A.	True
B.	False
Answer» B. False

Discussion

954.	To make lime plaster, limestone (calcium carbonate) is heated above approximately 50 °C to produce quicklime.
A.	True
B.	False
C.
Answer» C.

Discussion

955.	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

Discussion

956.	__________ plaster is a mixture of clay, sand and water with the addition of plant fibers for tensile strength over wood lath.
A.	Loam
B.	Sand
C.	Gypsum
D.	Clay
Answer» E.

Discussion

957.	__________ is a building material used for the protective and/or decorative coating of walls and ceilings and for moulding and casting decorative elements.
A.	Cement
B.	Aggregate
C.	Plaster
D.	Paint
Answer» D. Paint

Discussion

958.	Which of the following option is not true for the given statement about the method of determination of angle of internal dovetail by using pins?Statement 1: Pins should extend above the top surface of a dovetail.Statement 2: Pins are raised on slip gauges.
A.	T, T
B.	F, F
C.	F, T
D.	T, F
Answer» D. T, F

Discussion

959.	Which of the following statement is correct regarding the dovetail joint?Statement 1: Angle between sloping face and imaginary centre plane is important.Statement 2: It is difficult to pull apart the joint when glue is added.
A.	F, F
B.	F, T
C.	T, F
D.	T, T
Answer» E.

Discussion

960.	Which of the following is not correct for dovetail joints?
A.	Sloping sides act as a guide
B.	The slope is 1:5 for softwoods
C.	Used in box constructions
D.	Difficult to make manually
Answer» C. Used in box constructions

Discussion

961.	The thickness of the shell is dependent upon the strength required for the mold for the specific metal casting application.
A.	True
B.	False
Answer» B. False

Discussion

962.	________________ facilitates the removal of the shell.
A.	Dextrin
B.	Sand
C.	Zircon
D.	Silicone
Answer» E.

Discussion

963.	The typical parts like cylinder heads, gears and bushings are produced using the shell molding process.
A.	True
B.	False
Answer» B. False

Discussion

964.	_____________ is well known as the expendable molding process.
A.	Core molding
B.	Hand molding
C.	Machine molding
D.	Shell molding
Answer» E.

Discussion

965.	The hatching line should be inclined at an angle ________
A.	35°
B.	25°
C.	45°
D.	55°
Answer» D. 55°

Discussion

966.	Whatever material is cut by the cutting plane, should be _______
A.	not hatched
B.	hatched
C.	empty
D.	vertical
Answer» C. empty

Discussion

967.	Incomplete thread is hatches in assembly of external and internal thread.
A.	True
B.	False
Answer» C.

Discussion

968.	The gap between crest and root lines should not be less than ______ the thickness of thick line.
A.	half
B.	equal
C.	twice
D.	thrice
Answer» D. thrice

Discussion

969.	Cutting plane is shown by _______ with thick end and two arrows in the direction view.
A.	section line
B.	chain line
C.	single line
D.	double line
Answer» C. single line

Discussion

970.	Half-power beam width is also called as 6-db beam width.
A.	True
B.	False
Answer» C.

Discussion

971.	What happens to the beam-width of antenna if the frequency of operation is increased?
A.	Beam-width will decrease
B.	Beam-width will increase
C.	Beam-width is independent of frequency
D.	Beam width may increase or decrease
Answer» B. Beam-width will increase

Discussion

972.	Find the directivity when the half power beam widths are 45° and 60° in perpendicular planes.
A.	12.58
B.	17.98
C.	22.91
D.	15.28
Answer» E.

Discussion

973.	Beam width is the measure of directivity of antenna in terms of angles either radians or degrees.
A.	True
B.	False
Answer» B. False

Discussion

974.	What is the Beam area in radians when the HPBW in perpendicular planes are given by 60°, 30°?
A.	\(\frac{\pi^2}{8}\)
B.	\(\frac{\pi}{2}\)
C.	\(\frac{\pi^2}{18}\)
D.	2
Answer» D. 2

Discussion

975.	Beam area and directivity are related as _____
A.	\(D=\frac{2\pi}{B}\)
B.	\(D=\frac{4\pi}{B}\)
C.	\(D=\frac{B}{2\pi}\)
D.	\(D=\frac{B}{4\pi}\)
Answer» C. \(D=\frac{B}{2\pi}\)

Discussion

976.	In FCC metals, yield stress increases rapidly with decreasing temperature.
A.	True
B.	False
Answer» C.

Discussion

977.	Tensile curve gets lower down with an increase in temperature.
A.	True
B.	False
Answer» B. False

Discussion

978.	Elastic modulus and strength ____ and ductility ___ as the temperature of material increases.
A.	Increases, increases
B.	Increases, decreases
C.	Decreases, increases
D.	Decreases, decreases
Answer» D. Decreases, decreases

Discussion

979.	At strain rates _____ behaviour of the material is characterized by creep.
A.	Low, 104 per second
B.	Low, 10-4 per second
C.	High, 104 per second
D.	High, 10-4 per second
Answer» C. High, 104 per second

Discussion

980.	Yield and flow strength at lower plastic strain is more dependent on _____ than ______
A.	Strain rate, tensile strength
B.	Tensile strength, strain rate
C.	Strain rate, temperature
D.	Temperature, tensile strength
Answer» B. Tensile strength, strain rate

Discussion

981.	With increasing gauge length, % elongation _____
A.	Increases
B.	Decreases
C.	Remains constant
D.	First increases then decrease
Answer» C. Remains constant

Discussion

982.	An enzyme with a Km of 5mM has a reaction rate of 100 mmol/min at substrate concentration of 0.25 mmol. What is the maximum reaction rate that this enzyme can achieve when its saturated with substrate?
A.	2100
B.	1500
C.	1900
D.	9000
Answer» B. 1500

Discussion

983.	Given an enzyme with Km of 0.25mM, at what substrate concentration will the velocity of the enzyme reach 1/2 of the Vmax? (Vmax = 100 mmol/s)
A.	0.5 mM
B.	0.25 mM
C.	0.75 mM
D.	25 mM
Answer» C. 0.75 mM

Discussion

984.	A low Km value points out a low affinity of an enzyme towards its substrate.
A.	True
B.	False
Answer» C.

Discussion

985.	What does the following plot represents?
A.	Miachelis Menten plot
B.	Lineweaver Burk plot
C.	Eadie-Hofstee plot
D.	Hanes plot
Answer» D. Hanes plot

Discussion

986.	In the following plot, what does X represent?
A.	Vmax
B.	Km/Vmax
C.	–1/Km
D.	Smax
Answer» D. Smax

Discussion

987.	______________ is defined as an enzyme molecule’s efficiency to convert maximum substrate molecules into product per unit time.
A.	Catalytic efficiency
B.	Miachelis Menten constant
C.	Turn over number
D.	Vmax
Answer» D. Vmax

Discussion

988.	The equation which is based on reciprocal form of Miachelis Menten equation at constant [Et] level is referred to as ______________
A.	Eadie-Hofstee plot equation
B.	Eisenthal and Cornish and Bowden plot equation
C.	Lineweaver Burk equation
D.	Hanes plot equation
Answer» C. Lineweaver Burk equation

Discussion

989.	Which of the following equation is Eadie-Hofstee plot equation?
A.	\(\frac{1}{V_0} = \frac{K_m}{V_{max}} \frac{1}{[S]}+\frac{1}{V_{max}}\)
B.	\(V_0=\frac{V_{max} [S]}{K_m+[S]}\)
C.	\(V_0=K_m \frac{V_0}{S_0}+V_{max}\)
D.	\(\frac{[S_0]}{V_0} = \frac{1}{V_{max}} [S_0]+\frac{K_m}{V_{max}} \)
Answer» D. \(\frac{[S_0]}{V_0} = \frac{1}{V_{max}} [S_0]+\frac{K_m}{V_{max}} \)

Discussion

990.	Which of the following is termed as catalytic efficiency?
A.	Kcat
B.	Km
C.	Kcat/Km
D.	Vmax
Answer» D. Vmax

Discussion

991.	What does the equation \(V_0=\frac{V_{max} [S]}{K_m+[S]}\) represent?
A.	Lineweaver Burk equation
B.	Miachelis Menten equation
C.	Eadie-Hofstee plot equation
D.	Hanes plot equation
Answer» C. Eadie-Hofstee plot equation

Discussion

992.	How much time does take for Mercury to leave the body?
A.	2 months
B.	2 years
C.	18 months
D.	18 years
Answer» E.

Discussion

993.	The detection of heavy metals in drinking water supplies is extremely easy.
A.	True
B.	False
Answer» B. False

Discussion

994.	What are the symptoms of heavy metals in the body?
A.	Shortness of breath
B.	Tingling in your hands and feet.
C.	Chills
D.	Night blindness
Answer» E.

Discussion

995.	The accumulation of definite metals in the body due to certain exposures is called as Heavy metal poisoning.
A.	True
B.	False
Answer» B. False

Discussion

996.	Heavy metals in water bodies leads to an increase in wastewater treatment cost.
A.	True
B.	False
Answer» B. False

Discussion

997.	Which of the following doesn’t lead to toxicity of waste water?
A.	Magnesium
B.	Arsenic
C.	Lead
D.	Chromium
Answer» B. Arsenic

Discussion

998.	Which of the following is not a potential metal biosorbents?
A.	Algae
B.	Bacteria
C.	Fungi
D.	Nitrifying bacteria
Answer» E.

Discussion

999.	The process of uptake heavy metals from wastewater is called as Biosorption.
A.	True
B.	False
Answer» B. False

Discussion

1000.	Which of the following food doesn’t detoxify our body by removing heavy metals?
A.	Spirulina
B.	Wild blueberries
C.	Lemon water
D.	Cheese
Answer» E.

Discussion

Explore topic-wise MCQs in Php.

Instead of plastering entire surface of the masonry, special mortar finishing work is done to the exposed joints. This is called pointing.

Cracks in plastering may be caused by settlement of the building, by the use of inferior materials or by bad workmanship.

The following figure is a rubbed, keyed or grooved type of pointing.

To make lime plaster, limestone (calcium carbonate) is heated above approximately 50 °C to produce quicklime.

Gypsum plaster, or plaster of Paris, is produced by heating __________ to about 300 °F.

__________ plaster is a mixture of clay, sand and water with the addition of plant fibers for tensile strength over wood lath.

__________ is a building material used for the protective and/or decorative coating of walls and ceilings and for moulding and casting decorative elements.

Which of the following option is not true for the given statement about the method of determination of angle of internal dovetail by using pins?Statement 1: Pins should extend above the top surface of a dovetail.Statement 2: Pins are raised on slip gauges.

Which of the following statement is correct regarding the dovetail joint?Statement 1: Angle between sloping face and imaginary centre plane is important.Statement 2: It is difficult to pull apart the joint when glue is added.

Which of the following is not correct for dovetail joints?

The thickness of the shell is dependent upon the strength required for the mold for the specific metal casting application.

________________ facilitates the removal of the shell.

The typical parts like cylinder heads, gears and bushings are produced using the shell molding process.

_____________ is well known as the expendable molding process.

The hatching line should be inclined at an angle ________

Whatever material is cut by the cutting plane, should be _______

Incomplete thread is hatches in assembly of external and internal thread.

The gap between crest and root lines should not be less than ______ the thickness of thick line.

Cutting plane is shown by _______ with thick end and two arrows in the direction view.

Half-power beam width is also called as 6-db beam width.

What happens to the beam-width of antenna if the frequency of operation is increased?

Find the directivity when the half power beam widths are 45° and 60° in perpendicular planes.

Beam width is the measure of directivity of antenna in terms of angles either radians or degrees.

What is the Beam area in radians when the HPBW in perpendicular planes are given by 60°, 30°?

Beam area and directivity are related as _____

In FCC metals, yield stress increases rapidly with decreasing temperature.

Tensile curve gets lower down with an increase in temperature.

Elastic modulus and strength ____ and ductility ___ as the temperature of material increases.

At strain rates _____ behaviour of the material is characterized by creep.

Yield and flow strength at lower plastic strain is more dependent on _____ than ______

With increasing gauge length, % elongation _____

An enzyme with a Km of 5mM has a reaction rate of 100 mmol/min at substrate concentration of 0.25 mmol. What is the maximum reaction rate that this enzyme can achieve when its saturated with substrate?

Given an enzyme with Km of 0.25mM, at what substrate concentration will the velocity of the enzyme reach 1/2 of the Vmax? (Vmax = 100 mmol/s)

A low Km value points out a low affinity of an enzyme towards its substrate.

What does the following plot represents?

In the following plot, what does X represent?

______________ is defined as an enzyme molecule’s efficiency to convert maximum substrate molecules into product per unit time.

The equation which is based on reciprocal form of Miachelis Menten equation at constant [Et] level is referred to as ______________

Which of the following equation is Eadie-Hofstee plot equation?

Which of the following is termed as catalytic efficiency?

What does the equation \(V_0=\frac{V_{max} [S]}{K_m+[S]}\) represent?

How much time does take for Mercury to leave the body?

The detection of heavy metals in drinking water supplies is extremely easy.

What are the symptoms of heavy metals in the body?

The accumulation of definite metals in the body due to certain exposures is called as Heavy metal poisoning.

Heavy metals in water bodies leads to an increase in wastewater treatment cost.

Which of the following doesn’t lead to toxicity of waste water?

Which of the following is not a potential metal biosorbents?

The process of uptake heavy metals from wastewater is called as Biosorption.

Which of the following food doesn’t detoxify our body by removing heavy metals?

Elastic modulus and strength __ and ductility _ as the temperature of material increases.

Yield and flow strength at lower plastic strain is more dependent on _ than __