Pick out the correct equation. (A) jH = (St)(Pr) 2/3 = f/2 (B) jH = (St)(Pr) 1/3 = f/2 (C) jH = (St) 2/3 (Pr) = f/2 (D) jH = (St) 1/3 (Pr) = f/2

Pick out the correct equation.
(A) jH = (St)(Pr)
2/3 = f/2
(B) jH = (St)(Pr)
1/3 = f/2
(C) jH = (St)
2/3
(Pr) = f/2
(D) jH = (St)
1/3
(Pr) = f/2
by

1 Answer

Answer :

(A) jH = (St)(Pr)
2/3 = f/2
by

Related questions

Choose the correct equation. (A) Nu = (Re) (Pr) (Gz) (B) Nu = (Re) (Pr) (St) (C) Nu = (Re) (Pr) (D) Nu = (Pr) (St)

Description : Choose the correct equation. (A) Nu = (Re) (Pr) (Gz) (B) Nu = (Re) (Pr) (St) (C) Nu = (Re) (Pr) (D) Nu = (Pr) (St)

Last Answer : (B) Nu = (Re) (Pr) (St)

The equation, (NSt × N2/3 Pr ) = f/2, is the __________ analogy. (A) Colburn (B) Reynolds (C) Prandtl (D) None of these

Description : The equation, (NSt × N2/3 Pr ) = f/2, is the __________ analogy. (A) Colburn (B) Reynolds (C) Prandtl (D) None of these

Last Answer : (A) Colburn

Pick out the wrong statement. (A) Fluid movement under the influence of buoyant forces resulting from change in density takes place in case of natural convection (B) The ratio NNu /NRe . Npr is called the Stanton number (C) The Peclet number is a measure of the ratio of energy transport by convection to that by conduction (D) The Colburn jH factor for heat transfer is given by Nst Npr

Description : Pick out the wrong statement. (A) Fluid movement under the influence of buoyant forces resulting from change in density takes place in case of natural convection (B) The ratio NNu /NRe . Npr is ... convection to that by conduction (D) The Colburn jH factor for heat transfer is given by Nst Npr

Last Answer : (D) The Colburn jH factor for heat transfer is given by Nst Npr

Lewis number (Le) isA) Sc × Pr (B) Pr × St (C) Sh × Pr (D) St × Sh

Description : Lewis number (Le) isA) Sc × Pr (B) Pr × St (C) Sh × Pr (D) St × Sh

Last Answer : (A) Sc × Pr

Product planne t planners must desi st design the ac gn the actual pr tual product an oduct and find w d find ways to _ ays to _____ it ____ it in orde in order to create the bundle of ben create the bundle of benefits that will provide the efits that will provide the most satisfying custome most satisfying customer experience. r experience. a. core benefit b. package package c. brand d. augment

Description : Product planne t planners must desi st design the ac gn the actual pr tual product an oduct and find w d find ways to _ ays to _____ it ____ it in orde in order to create the bundle ... custome most satisfying customer experience. r experience. a. core benefit b. package package c. brand d. augment

Last Answer : d. augment

With the increase of temperature, the Col-burn jH factor (A) Increases (B) Decreases (C) Remains unchanged (D) May increase or decrease; depending on temperature

Description : With the increase of temperature, the Col-burn jH factor (A) Increases (B) Decreases (C) Remains unchanged (D) May increase or decrease; depending on temperature

Last Answer : (A) Increases

jH factor for heat transfer is not a function of the __________ number. (A) Reynolds (B) Nusselt (C) Grashoff (D) Both (B) & (C)

Description : jH factor for heat transfer is not a function of the __________ number. (A) Reynolds (B) Nusselt (C) Grashoff (D) Both (B) & (C)

Last Answer : (D) Both (B) & (C)

jH factor for heat transfer depends upon the __________ number. (A) Biot (B) Nusselt (C) Reynolds (D) Prandtl

Description : jH factor for heat transfer depends upon the __________ number. (A) Biot (B) Nusselt (C) Reynolds (D) Prandtl

Last Answer : (C) Reynolds

Pick out the correct equation relating 'F' and 'A'. (A) F = A + PV (B) F = E + A (C) F = A - TS

Description : Pick out the correct equation relating 'F' and 'A'. (A) F = A + PV (B) F = E + A (C) F = A - TS

Last Answer : (A) F = A + PV

The Dittus-Boelter equation for convective heat transfer [(i.e. h = 0.023 (K/D) (Re) 0.8 (Pr) 0.4 ] cannot be used for (A) Low Reynold's number (B) Very low Grashoff number (C) Molten metals (D) All (A), (B) and (C)

Description : The Dittus-Boelter equation for convective heat transfer [(i.e. h = 0.023 (K/D) (Re) 0.8 (Pr) 0.4 ] cannot be used for (A) Low Reynold's number (B) Very low Grashoff number (C) Molten metals (D) All (A), (B) and (C)

Last Answer : (D) All (A), (B) and (C)

Heat transfer co-efficient equation for forced convection, Nu = 0.023 Re 0.8 . Pr n , is not valid, if the value of (A) n = 0.4 is used for heating (B) n = 0.3 is used for cooling (C) Reynolds number for the flow involved is > 10000 (D) Reynolds number for the flow involved is < 2100

Description : Heat transfer co-efficient equation for forced convection, Nu = 0.023 Re 0.8 . Pr n , is not valid, if the value of (A) n = 0.4 is used for heating (B) n = 0.3 is used for cooling (C) Reynolds number for the flow involved is > 10000 (D) Reynolds number for the flow involved is < 2100

Last Answer : (D) Reynolds number for the flow involved is < 2100

Which of the following is TPS variety of Potato ? (A) JH 222 (B) Chipsona-II (C) Anand (D) HPS-1/113

Description : Which of the following is TPS variety of Potato ? (A) JH 222 (B) Chipsona-II (C) Anand (D) HPS-1/113

Last Answer : (D) HPS-1/113

What are all the 7 step in JH pillar?

Description : What are all the 7 step in JH pillar?

Last Answer : (i) Initial cleaning (ii) Countermeasures Against Causes of Forced Deterioration (iii) Preparation of Tentative Standards (iv) General Inspection (v) Autonomous Inspection (vi) Standardization (vii) Autonomous Management

What are all the 3 gems in JH implementation

Description : What are all the 3 gems in JH implementation

Last Answer : (i) Activity board (ii) One-point lesson (iii) Team meetings

The thre The three groups o e groups of indust f industrial pr rial products a oducts and servi nd services inc ces include all of t lude all of the foll he following exc owing except _____. a. materials and parts b. capital items capital items c. maintenance and operations d. supplies and services

Description : The thre The three groups o e groups of indust f industrial pr rial products a oducts and servi nd services inc ces include all of t lude all of the foll he following exc owing except _____. a. materials and parts b. capital items capital items c. maintenance and operations d. supplies and services

Last Answer : c. maintenance and operations

Pick up the correct match . `{:((a)" False ribs " (i) 1^(st)" to " 7^(th) " pair "),((b)" Ture ribs " (ii) 11^(th) and 12^(th) "pair "),((c)" Floating

Description : Pick up the correct match . `{:((a)" False ribs " (i) 1^(st)" to " 7^(th) " pair "),((b)" Ture ribs " (ii) 11^(th) and 12^(th) "pair "),((c)" Floating

Last Answer : Pick up the correct match . `{:((a)" False ribs " (i) 1^(st)" to " 7^(th) " pair "),((b)" Ture ribs " (ii ... c-ii, d-iv` D. `a-iii, b-i, c-ii, d-iv`

Reynold's analogy states that (where, St = Stanton number f = friction factor) (A) St = f/2 (B) St = f/4 (C) St = 4f (D) St = f 1/2

Description : Reynold's analogy states that (where, St = Stanton number f = friction factor) (A) St = f/2 (B) St = f/4 (C) St = 4f (D) St = f 1/2

Last Answer : (A) St = f/2

For what value of Prandtl number, St = f/2? (A) 1.5 (B) 1 (C) > 1 (D) < 1

Description : For what value of Prandtl number, St = f/2? (A) 1.5 (B) 1 (C) > 1 (D) < 1

Last Answer : (B) 1

River Alaknanda forms confluences (Prayags) in Uttrakhand. Match the codes given in Figure with Table (Prayags) and select the correct answer using the code given below. Figure Table (Pr ayags) D A L A K N A N D A C B A I. Karn Prayag II. Rudra Prayag III. Nand Prayag IV. Vishnu Prayag

Description : River Alaknanda forms confluences (Prayags) in Uttrakhand. Match the codes given in Figure with Table (Prayags) and select the correct answer using the code given below. Figure Table (Pr ayags) D A L A K N A N D A C B A I. Karn Prayag II. Rudra Prayag III. Nand Prayag IV. Vishnu Prayag

Last Answer : (1) A-II, B-I, C-III, D-IV

Pick out the correct statement. (A) The slope of the stripping line is always less than unity (B) For a given separation in a binary distillation column, with increase in reflux ratio (above the minimum reflux ratio), the fixed cost of the distillation column first increases and then decreases (C) In Ponchon-Savarit method of no. of theoretical plate determination, the stripping and rectifying operating lines are vertical at total reflux (D) Kremser-Brown-Souder's equation is used to calculate the efficiency of a plate tower

Description : Pick out the correct statement. (A) The slope of the stripping line is always less than unity (B) For a given separation in a binary distillation column, with increase in reflux ratio ( ... (D) Kremser-Brown-Souder's equation is used to calculate the efficiency of a plate tower

Last Answer : C) In Ponchon-Savarit method of no. of theoretical plate determination, the stripping and rectifying operating lines are vertical at total reflux

The relation, Sc = Pr = 1, is valid, when the mechanism of __________ transfer is same. (A) Heat and mass (B) Mass and momentum (C) Heat and momentum (D) Heat, momentum and mass

Description : The relation, Sc = Pr = 1, is valid, when the mechanism of __________ transfer is same. (A) Heat and mass (B) Mass and momentum (C) Heat and momentum (D) Heat, momentum and mass

Last Answer : (A) Heat and mass

The value of Lewis number (Le = Sc/Pr) for air-water vapour system is around (A) 1 (B) 0.24

Description : The value of Lewis number (Le = Sc/Pr) for air-water vapour system is around (A) 1 (B) 0.24

Last Answer : (A) 1

At Pr > 1, conduction in an ordinary fluid flowing through a heated pipe is limited to the (A) Buffer zone (B) Turbulent core (C) Both (A) and (B) (D) Viscous sub-layer

Description : At Pr > 1, conduction in an ordinary fluid flowing through a heated pipe is limited to the (A) Buffer zone (B) Turbulent core (C) Both (A) and (B) (D) Viscous sub-layer

Last Answer : (D) Viscous sub-layer

In forced convection, the heat transfer depends on(A) Re, Pr (B) Re, Gr (C) Mainly Gr (D) Re only

Description : In forced convection, the heat transfer depends on (A) Re, Pr (B) Re, Gr (C) Mainly Gr (D) Re only

Last Answer : (A) Re, Pr

In forced convection, the Nusselt number is a function of (A) Re and Pr (B) Re and Gr (C) Pr and Gr (D) Re and Sc

Description : In forced convection, the Nusselt number is a function of (A) Re and Pr (B) Re and Gr (C) Pr and Gr (D) Re and Sc

Last Answer : (A) Re and Pr

The characteristic dimensionless groups for heat transfer to a fluid flowing through a pipe in laminar flow are (A) Re.Gz (B) Nu, Pr (C) Nu, Pr, Re (D) Nu, Gz

Description : The characteristic dimensionless groups for heat transfer to a fluid flowing through a pipe in laminar flow are (A) Re.Gz (B) Nu, Pr (C) Nu, Pr, Re (D) Nu, Gz

Last Answer : (D) Nu, Gz

Peclet number (Pe) is given by (A) Pe = Re.Pr (B) Pe = Re/Pr (C) Pe = Pr /Re (D) Pe = Nu.Re

Description : Peclet number (Pe) is given by (A) Pe = Re.Pr (B) Pe = Re/Pr (C) Pe = Pr /Re (D) Pe = Nu.Re

Last Answer : (A) Pe = Re.Pr

The rate expression for a heterogeneous catalytic reaction is given by, - rA = K.KA PA(1 + KA.PA + KR.PR), where K is surface reaction rate constant and KA and KR are absorption equilibrium constants of A and R respectively. If KR PR >> (1 + KA PA), the apparent activation energy EA is equal to (given E is the activation energy for the reaction and ΔHR and ΔHA are the activation energies of adsorption of R and A) (A) E (B) E + ΔHA (C) E + ΔHA - ΔHR ) (D) ΔHA + ΔHR

Description : The rate expression for a heterogeneous catalytic reaction is given by, - rA = K.KA PA(1 + KA.PA + KR.PR), where K is surface reaction rate constant and KA and KR are absorption equilibrium constants of A and R respectively. If KR PR ... R and A) (A) E (B) E + ΔHA (C) E + ΔHA - ΔHR ) (D) ΔHA + ΔHR

Last Answer : (C) E + ΔHA - ΔHR )

What is the equation for an ellipse with a center at the origin and one focus st(1,1)and the length of the semimajor axis is 4.?

Description : What is the equation for an ellipse with a center at the origin and one focus st(1,1)and the length of the semimajor axis is 4.?

Last Answer : Use the standard form (x−h)2a2+(y−k)2b2=1 ( x − h ) 2 a 2 + ( y − k ) 2 b 2 = 1 . If the x-coordinates of the given vertices and foci are the same, then the major axis is parallel to the y-axis. Use the standard form (x−h)2b2+(y−k)2a2=1 ( x − h ) 2 b 2 + ( y − k ) 2 a 2 = 1 .

The highest mountain in Canada is __________ (A) the pick of St. Elias. (B) Elbrus. (C) Mount Logan. (D) Ben Nevis.

Description : The highest mountain in Canada is __________ (A) the pick of St. Elias. (B) Elbrus. (C) Mount Logan. (D) Ben Nevis.

Last Answer : (C) Mount Logan. 

I keep hearing the president didn't do as much for PR as TX and FL. Is that true?

Description : I keep hearing the president didn't do as much for PR as TX and FL. Is that true?

Last Answer : The BBC is covering the disaster that has struck Puerto Rico and American media are also. The fact you are asking the question shows the media have been effective in communicating the scale of the problem ... , this is tough stuff, he added. That's your president speaking. It is not reassuring.

I am the PR of a person who died. Assets include a note owed for a substantial amount of money.

Description : I am the PR of a person who died. Assets include a note owed for a substantial amount of money.

Last Answer : Welcome to ask-public, Kathleen. I think this is a question for a probate lawyer.

What's the difference between marketing, PR, and advertising?

Description : What's the difference between marketing, PR, and advertising?

Last Answer : answer:Marketing is the broadest term. Advertising is a part of marketing. (It’s one of five parts, but I forgot the other four. Product design, selling, and research, and something else?) I don’t know where public relations fits into this arcane scheme.

When will be PR update?

Description : When will be PR update?

Last Answer : answer:

How do I ship, inexpensively, my two dogs (Golden Retriever 60 lbs and Labrador puppy 30 lbs) along with 2 cats (Siamese mix) to TX from PR?

Description : How do I ship, inexpensively, my two dogs (Golden Retriever 60 lbs and Labrador puppy 30 lbs) along with 2 cats (Siamese mix) to TX from PR?

Last Answer : answer:Step 1)Mix foam packing peanuts and pet food together Step 2)Place pet in box Step 3)Cover pet in peanut/food mixture Step 4)Seal box Step 5)AIR HOLES!! Step 6)Schedule UPS Pickup Repeat as necessary.

O is any point on the diagonal PR of a parallelogram PQRS. -Maths 9th

Description : O is any point on the diagonal PR of a parallelogram PQRS. -Maths 9th

Last Answer : Join QS. Let diagonals PR and QS intersect each other at T. We know, that diagonals of a parallelogram bisect each other . ∴ T is the mid - point of QS. Since a median of a triangle divides it into two triangles of equal ... ar(△PTS) + ar( △STO) = ar(△PQT) = ar( △ QTO ) ⇒ ar(△PSO) = ar(△PQO)

The given figure shows a circle with centre O in which a diameter AB bisects the chord PQ at the point R. If PR = RQ = 8 cm and RB = 4 cm, then find the radius of the circle. -Maths 9th

Description : The given figure shows a circle with centre O in which a diameter AB bisects the chord PQ at the point R. If PR = RQ = 8 cm and RB = 4 cm, then find the radius of the circle. -Maths 9th

Last Answer : Let r be the radius, then OQ = OB = r and OR = (r - 4) ∴ OQ2 = OR2 + RO2 ⇒ r2 = 64 + (r-4)2 ⇒ r2 = 64 + r2 + 16 - 8r ⇒ 8r = 80 ⇒ r = 10 cm

If AB = QR, BC = PR and CA = PQ, then -Maths 9th

Description : If AB = QR, BC = PR and CA = PQ, then -Maths 9th

Last Answer : (b) We know that, if ΔRST is congruent to ΔUVW i.e., ΔRST = ΔUVW, then sides of ΔRST fall on corresponding equal sides of ΔUVW and angles of ΔRST fall on corresponding equal angles of ΔUVW. Here, given AB = ... , or ΔCBA ≅ ΔPRQ, so option (b) is correct, or ΔBCA ≅ ΔRPQ, so option (d) is incorrect.

O is any point on the diagonal PR of a parallelogram PQRS (figure). -Maths 9th

Description : O is any point on the diagonal PR of a parallelogram PQRS (figure). -Maths 9th

Last Answer : According to question prove that ar(ΔPSO) = ar(ΔPQO).

O is any point on the diagonal PR of a parallelogram PQRS. -Maths 9th

Description : O is any point on the diagonal PR of a parallelogram PQRS. -Maths 9th

Last Answer : Join QS. Let diagonals PR and QS intersect each other at T. We know, that diagonals of a parallelogram bisect each other . ∴ T is the mid - point of QS. Since a median of a triangle divides it into two triangles of equal ... ar(△PTS) + ar( △STO) = ar(△PQT) = ar( △ QTO ) ⇒ ar(△PSO) = ar(△PQO)

The given figure shows a circle with centre O in which a diameter AB bisects the chord PQ at the point R. If PR = RQ = 8 cm and RB = 4 cm, then find the radius of the circle. -Maths 9th

Description : The given figure shows a circle with centre O in which a diameter AB bisects the chord PQ at the point R. If PR = RQ = 8 cm and RB = 4 cm, then find the radius of the circle. -Maths 9th

Last Answer : Let r be the radius, then OQ = OB = r and OR = (r - 4) ∴ OQ2 = OR2 + RO2 ⇒ r2 = 64 + (r-4)2 ⇒ r2 = 64 + r2 + 16 - 8r ⇒ 8r = 80 ⇒ r = 10 cm

If AB = QR, BC = PR and CA = PQ, then -Maths 9th

Description : If AB = QR, BC = PR and CA = PQ, then -Maths 9th

Last Answer : (b) We know that, if ΔRST is congruent to ΔUVW i.e., ΔRST = ΔUVW, then sides of ΔRST fall on corresponding equal sides of ΔUVW and angles of ΔRST fall on corresponding equal angles of ΔUVW. Here, given AB = ... , or ΔCBA ≅ ΔPRQ, so option (b) is correct, or ΔBCA ≅ ΔRPQ, so option (d) is incorrect.

O is any point on the diagonal PR of a parallelogram PQRS (figure). -Maths 9th

Description : O is any point on the diagonal PR of a parallelogram PQRS (figure). -Maths 9th

Last Answer : According to question prove that ar(ΔPSO) = ar(ΔPQO).

If P, Q and R are three points on a line and Q is between P and R,then prove that PR - QR= PQ. -Maths 9th

Description : If P, Q and R are three points on a line and Q is between P and R,then prove that PR - QR= PQ. -Maths 9th

Last Answer : Solution :-

If AB = PQ, BC = QR and AC = PR, then write the congruence relation between the triangles. [Fig. 7.6] -Maths 9th

Description : If AB = PQ, BC = QR and AC = PR, then write the congruence relation between the triangles. [Fig. 7.6] -Maths 9th

Last Answer : Solution :- △ ABC ≅ △PQR

In angle PQR angle P = 80 .If PQ =PR find angle Q and angle R -Maths 9th

Description : In angle PQR angle P = 80 .If PQ =PR find angle Q and angle R -Maths 9th

Last Answer : a triangle includes 3 angles summing up as 180° so 180 =

If PQRS is trapezium such that PQ > RS and L, M are the mid-points of the diagonals PR and QS respectively then what is LM equal to? -Maths 9th

Description : If PQRS is trapezium such that PQ > RS and L, M are the mid-points of the diagonals PR and QS respectively then what is LM equal to? -Maths 9th

Last Answer : if pqrs is a trapezium so pq and RS are parallel is you draw a diagonal you will divide the trapezium into two parts such that two equal triangle so

What is the atomic number of Pr ?

Description : What is the atomic number of Pr ?

Last Answer : The atomic number of Pr is 59

Suppose you are developing a new drug, and have found that when it is administered in humans there is a substantial increase in the volume of urine pr

Description : Suppose you are developing a new drug, and have found that when it is administered in humans there is a substantial increase in the volume of urine pr

Last Answer : Suppose you are developing a new drug, and have found that when it is administered in humans ... Mimics the action of ADH D. Decreases blood pressure

Age of fossils in the past was generally determined by radiocarbon method and other methods involving radioactive elements found in the rocks. More pr

Description : Age of fossils in the past was generally determined by radiocarbon method and other methods involving radioactive elements found in the rocks. More pr

Last Answer : Age of fossils in the past was generally determined by radiocarbon method and other methods ... D. Study of carbohydrates/proteins in fossils