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The critical pressure ratio is given by (where p<sub>1</sub> = Initial pressure of steam and p<sub>2</sub> = Pressure of steam at throat or critical pressure)
A
$${{\text{p}}_1} \times {{\text{p}}_2}$$
B
$$\frac{{{{\text{p}}_1}}}{{{{\text{p}}_2}}}$$
C
$$\frac{{{{\text{p}}_2}}}{{{{\text{p}}_1}}}$$
D
$${{\text{p}}_1} + {{\text{p}}_2}$$
Correct Answer:
$$\frac{{{{\text{p}}_2}}}{{{{\text{p}}_1}}}$$
Read the passage carefully and choose the best answer to each question out of the four alternatives and click the button corresponding to it. The first working steam powered vehicle was designed and most likely built by Ferdinand Verbies, a Flemish member of a Jesuit mission in China around 1672. It was a 65 cm long scale model toy for the Chinese Emperor, that was unable to carry a driver or a passenger. It is not known if Verbiest's model was ever built. Nicolas- Joseph Cugnot is widely credited with building the first full scale, self propelled mechanical vehicle or automobile in about 1769; he also created a steam powered tricycle. He constructed two steam tractors for the French Army, one of which is preserved in the French National Conservatory of Arts and Crafts. His inventions were however handicapped by problems of water supply and maintaining steam pressure. In 1801, Richard Trevithick built and demonstrated his Puffing Devil road locomotive, believed by many to be the first demonstration of a steam powered road vehicle. It was unable to maintain sufficient steam pressure for long periods. Sentiment against steam powered road vehicles led to the Locomotive Acts of 1865. In 1807 Nicephore Niepce and his brother Claude probably created the world's first internal combustion engine which they called Pyreolophore. The first fullscale, working steam powered tricycle was built by:
A
Verbiest
B
Cugnot
C
Trevithick
D
Niepce
Read the passage carefully and choose the best answer to each question out of the four alternatives and click the button corresponding to it. The first working steam powered vehicle was designed and most likely built by Ferdinand Verbies, a Flemish member of a Jesuit mission in China around 1672. It was a 65 cm long scale model toy for the Chinese Emperor, that was unable to carry a driver or a passenger. It is not known if Verbiest's model was ever built. Nicolas- Joseph Cugnot is widely credited with building the first full scale, self propelled mechanical vehicle or automobile in about 1769; he also created a steam powered tricycle. He constructed two steam tractors for the French Army, one of which is preserved in the French National Conservatory of Arts and Crafts. His inventions were however handicapped by problems of water supply and maintaining steam pressure. In 1801, Richard Trevithick built and demonstrated his Puffing Devil road locomotive, believed by many to be the first demonstration of a steam powered road vehicle. It was unable to maintain sufficient steam pressure for long periods. Sentiment against steam powered road vehicles led to the Locomotive Acts of 1865. In 1807 Nicephore Niepce and his brother Claude probably created the world's first internal combustion engine which they called Pyreolophore. Cugnot built steam tractors for:
A
The Chinese Emperor
B
The French Army
C
The Jesuit mission
D
The French Conservatory
Read the passage carefully and choose the best answer to each question out of the four alternatives and click the button corresponding to it. The first working steam powered vehicle was designed and most likely built by Ferdinand Verbies, a Flemish member of a Jesuit mission in China around 1672. It was a 65 cm long scale model toy for the Chinese Emperor, that was unable to carry a driver or a passenger. It is not known if Verbiest's model was ever built. Nicolas- Joseph Cugnot is widely credited with building the first full scale, self propelled mechanical vehicle or automobile in about 1769; he also created a steam powered tricycle. He constructed two steam tractors for the French Army, one of which is preserved in the French National Conservatory of Arts and Crafts. His inventions were however handicapped by problems of water supply and maintaining steam pressure. In 1801, Richard Trevithick built and demonstrated his Puffing Devil road locomotive, believed by many to be the first demonstration of a steam powered road vehicle. It was unable to maintain sufficient steam pressure for long periods. Sentiment against steam powered road vehicles led to the Locomotive Acts of 1865. In 1807 Nicephore Niepce and his brother Claude probably created the world's first internal combustion engine which they called Pyreolophore. What is meant by "Sentiment" in the context of the given paragraph?
A
Depression
B
Fascination
C
Celebration
D
Resentment
Read the passage carefully and choose the best answer to each question out of the four alternatives and click the button corresponding to it. The first working steam powered vehicle was designed and most likely built by Ferdinand Verbies, a Flemish member of a Jesuit mission in China around 1672. It was a 65 cm long scale model toy for the Chinese Emperor, that was unable to carry a driver or a passenger. It is not known if Verbiest's model was ever built. Nicolas- Joseph Cugnot is widely credited with building the first full scale, self propelled mechanical vehicle or automobile in about 1769; he also created a steam powered tricycle. He constructed two steam tractors for the French Army, one of which is preserved in the French National Conservatory of Arts and Crafts. His inventions were however handicapped by problems of water supply and maintaining steam pressure. In 1801, Richard Trevithick built and demonstrated his Puffing Devil road locomotive, believed by many to be the first demonstration of a steam powered road vehicle. It was unable to maintain sufficient steam pressure for long periods. Sentiment against steam powered road vehicles led to the Locomotive Acts of 1865. In 1807 Nicephore Niepce and his brother Claude probably created the world's first internal combustion engine which they called Pyreolophore. The problem with Trevithick's Puffing Devil was:
A
Its incapability to carry a driver or a passenger
B
With the water supply
C
Its inability to maintain steam pressure
D
Its combustion engine
Read the passage carefully and choose the best answer to each question out of the four alternatives and click the button corresponding to it. The first working steam powered vehicle was designed and most likely built by Ferdinand Verbies, a Flemish member of a Jesuit mission in China around 1672. It was a 65 cm long scale model toy for the Chinese Emperor, that was unable to carry a driver or a passenger. It is not known if Verbiest's model was ever built. Nicolas- Joseph Cugnot is widely credited with building the first full scale, self propelled mechanical vehicle or automobile in about 1769; he also created a steam powered tricycle. He constructed two steam tractors for the French Army, one of which is preserved in the French National Conservatory of Arts and Crafts. His inventions were however handicapped by problems of water supply and maintaining steam pressure. In 1801, Richard Trevithick built and demonstrated his Puffing Devil road locomotive, believed by many to be the first demonstration of a steam powered road vehicle. It was unable to maintain sufficient steam pressure for long periods. Sentiment against steam powered road vehicles led to the Locomotive Acts of 1865. In 1807 Nicephore Niepce and his brother Claude probably created the world's first internal combustion engine which they called Pyreolophore. The Pyreolophore was ?
A
A self\u00adpropelled mechanical vehicle
B
A steam-\u00adpowered tricycle
C
A steam tractor
D
The name of the world's first internal combustion engine
From the given below statements, find the incorrect statement. i. A critical path has zero float. ii. A critical path has both critical and non-critical activities. iii. A critical path is the longest path and consumes maximum time and resources.
A
i only
B
ii only
C
i and iii only
D
iii only
If D is the depth of water upstream of the throat above its sill, B is the width of the throat, to achieve critical flow in an open venturi flume, the theoretical maximum flow Q, is
A
Q = 1.71 $${\text{B}}{{\text{D}}^{\frac{1}{2}}}$$
B
Q = 1.71 BD
C
Q = 1.71 $${\text{B}}{{\text{D}}^{\frac{3}{2}}}$$
D
Q = 1.71 $${\text{B}}{{\text{D}}^{\frac{2}{3}}}$$
In order to avoid tendency of separation at throat in a Venturimeter, the ratio of the diameter at throat to the diameter of pipe should be
A
$$\frac{1}{{16}}$$ to $$\frac{1}{8}$$
B
$$\frac{1}{8}$$ to $$\frac{1}{4}$$
C
$$\frac{1}{4}$$ to $$\frac{1}{3}$$
D
$$\frac{1}{3}$$ to $$\frac{1}{2}$$
One day you wake with a sore throat and a runny nose. Your doctor takes a swab from your throat, sends it to a lab, and telephones you the next day to say that antibiotic will not help you get better. Which of the following is the most likely reason for the doctor's statement?
A
Having waited a day, it is too late to take an antibiotic
B
You need an antiseptic, not an antibiotic
C
You need to be vaccinated instead of taking an antibiotic
D
You are infected by a virus
The critical pressure gives the velocity of steam at the throat ___________
A
equal to the velocity of sound
B
more than velocity of sound
C
less than the velocity of light
D
none of the mentioned