Maximum Heute bestellen, versandkostenfrei Inklusive Fachbuch-Schnellsuche. Jetzt versandkostenfrei bestellen .m 2, the gyroscopic couple is 500 Nm 1000 Nm 3000 N 1) Calculate gyroscopic couple acting on a disc which has radius of 135 mm. Angular and precessional velocities are 15 rad/sec and 7 rad/sec respectively. Assume density = 7810 kg/m3 and thickness of disc = 30 mm. a. 12.83 N-m. b. 10.99 N-m. c. 11 N-m. d. Incomplete data. Answer Explanation. ANSWER: 12.83 N-m
9. The rotor of a ship rotates in clockwise direction when viewed from stern and the ship takes a left turn. The effect of gyroscopic couple acting on it will be (A) To raise the bow and stern (B) To lower the bow and stern (C) To raise the bow and lower the stern (D) To raise the stern and lower the bo Assuming that a vehicle is taking a left turn, The gyroscopic couple acting on the vehicle has a tendency to _____ the inner wheels and ____ the outer wheels. (a) press, lif Theory Of Machine MCQ question is the important chapter for a Mechanical Engineering and GATE students. Page-6 section-5 Learn Theory Of Machine MCQ questions & answers are available for a Mechanical Engineering students to clear GATE exams, various technical interview, competitive examination, and another entrance exam Theory of Machines MCQ Question with Answer 197 When the pitching of a ship is upward, the effect of gyroscopic couple acting on it will be . A To move the ship towards starboard . B To move the ship towards port side . C To raise the bow and lower the stern . D To raise The maximum efficiency of a screw jack is . A (1 - sinφ)/(1.
.What is the gyroscopic couple acting on the disc which has mass moment of inertia equal to 0.02135 kg-m^2.If disc has a speed of 500 rpm and is made to precess at 100 rpm. a) 13.21 N-m b) 11.70 N-m c) 10.23 N-m d) Incomplete data. Q13.Which of the following statements is/are false for active gyroscopic couple Gyroscopic Couple Basic -'Gyre' is a Greek word, meaning 'circular motion' and Gyration means the whirling motion. A gyroscope is a spatial mechanism which is generally employed for the study of precessional motion of a rotary body. Gyroscope finds applications in gyrocompass, used in aircraft, naval ship, control system of missiles and. 9) Calculate reactive gyroscopic couple acting on rotating disc which is inclined at an angle of 1.5 o. Mass moment of inertia about polar and diametral axis is 2.45 kg-m 2 and 0.5 kg-m 2 respectively. The disc rotates at an angular velocity of 130 rad/se 17) What is the gyroscopic couple acting on the disc which has mass moment of inertia equal to 0.02135 kg-m2. If disc has a speed of 500 rpm and is made to precess at 100 rpm. a. 13.21 N-m b. 11.70 N-m c. 10.23 N-m d. Incomplete data ANSWER: 11.70 N-m. 18) Which of the following statements is/are false for active gyroscopic couple? a gyroscopic couple. Understand CO2 AME011.03 8 How do the effects of gyroscopic couple and centrifugal force make the rider. Understand CO2 AME011.02 9 Explain axis of spinning, axis of precession and axis of gyroscopic couple. Understand CO2 AME011.03 10 Explain the gyroscopic effect on a ship during pitching
The rotor of the turbine of a yacht makes 1200 r.p.m. clockwise when viewed from stern. The rotor has a mass of 750 kg and its radius of gyration is 250 mm. Find the maximum gyroscopic couple transmit-ted to the hull (body of the yacht) when yacht pitches with maximum angular velocity of 1 rad /s. What is the effect of this couple Learn Theory Of Machine MCQ questions & answers are available for a Mechanical Engineering students to clear GATE exams, various technical interview, competitive examination, and another entrance exam. Theory Of Machine MCQ question is the important chapter for a Mechanical Engineering and GATE students. Page-13 section-
1. no external force acts on a body, after giving it an initial displacement. 2. none of the above. 3. there is a reduction in amplitude after every cycle of vibration. 4. a body vibrates under the influence of external force. Correct. Incorrect. Question 2 of 20. 2 reactive couple whose magnitude is same (i.e. I. ω.ωP) but opposite in direction to that of active couple. This reactive couple to which the disc is subjected when the axis of spin rotates about the axis of precession is known as reactive gyroscopic couple. The axis of the reactive gyroscopic couple is represented by OZ′ in Fig. 14.2 (a). 3
View Answer. Answer: a. Explanation: The angular acceleration is given by the formula : α = -Φ (ω 1) 2 sin (ω 1 t), hence the maximum will occur when sin (ω 1 t)=1. 3. Pitching is the movement of a ship up and down in a vertical plane about transverse axis. a) True. b) False. View Answer. Answer: a Q13. A disc is spinning with an angular velocity about the axis of spin. The couple applied to the disc causing precession will be Option A: 1/2Iω2 Option B: Iω2 Option C: 1/2 Iω ωp Option D: Iω ωp Q14. When the pitching of a ship is upward, the effect of gyroscopic couple acting on i Solution: For the effect of gyroscopic couple to occur, the axis of precession should always be perpendicular to the axis of spin. If, however, the axis of precession becomes parallel to the axis of spin, there will be no effect of the gyroscopic couple acting on the body of the ship.In case of rolling of a ship, the axis of precession (i.e. longitudinal axis) is always parallel to the axis of. Theory of Machines MCQ Question with Answer When the pitching of a ship is _____ the effect of gyroscopic couple acting on it will be to move the ship towards port side. A Upward . B Downward . C Forward . B A point on the pitch curve having maximum pressure angle . C Any point on the pitch curve 750 kg and radius of gyration of 250mm.Find the maximum gyroscopic couple transmitted to the hull when yacht pitches with a maximum angular velocity of 1 rad/s. W hat is the effect of this couple? (16) 12. The turbine rotor of a ship has a mass of 20 tonnes and a radius of gyration .75.Its speed is
Show Answer. Ans: (c) reverted gear train. Q24. The engine of an aeroplane rotates in clockwise direction when seen from the tail end and the aeroplane takes a turn to the left. The effect of gyroscopic couple on the aeroplane will be. (a) to dip the nose and tail. (b) to raise the nose and tail Looking for basic mechanical engineering MCQ questions. You can now solve thousands of mechanical engineering MCQ questions for competitive exams absolutely FREE. Electricalvoice's website has a collection of thousands of mechanical objective questions. These multiple-choice questions (MCQs) are generally asked in the competitive examination and college/university entrance examination
B Preloaded spring cam. C Both a. and b. D None of the above. View Answer. Answer: Conjugate cam. 7 A cam operating roller follower has the following dimensions, radius of base and nose circle as 15 mm and 10 mm respectively and distance between them is 8 mm. Determine lift made by the follower. A 3 mm. B 17 mm C : maximum. D : - View Answer. When the pitching of a ship is upward, the effect of gyroscopic couple acting on it will be. Options. A : to move the ship towards star-board. B : to move the ship towards port side. C : to raise the bow and lower the stern. D : to raise the stern and lower the bow. View Answer. The unbalanced force due to.
For an Oldham coupling used between two shafts, which among the following statements are correct...? I. Torsional load is transferred along shaft axis On which parameters depends the value of gyroscopic couple ? Ans: It depends upon M.I. of rotor, spinning speed, and angular speed of precession. What is the maximum efficiency of power transmission through a pipe ? Ans: 66.67%. Multiple Choice Questions (MCQ) with Answers on D.C. Generators - Electrical Engineering. , curled fingers denote direction of precession In active gyroscopic couple spin vector and precession vector are parallel to each other All the statements are fals
SOLID MECHANICS MCQS 1. Solid Mechanics MCQS. 1 / 15. The ratio of elongations of a conical bar due to its own weight and that of a prismatic bar of the same length, is. 1. 1/8. 2. 1/3. 3. 1/4. 4. none of the above. 2 / 15 The effect of gyroscopic couple on the aeroplane will be to dip the nose and raise the tail. 3 m. The engine rotates at 2400 r.p.m. clockwise when viewed from the rear. Find the gyroscopic couple on the aircraft. When the pitching of a ship is upward, the effect of gyroscopic couple acting on it will b Gyroscope 1 17.4 GYROSCOPIC EFFECT ON NAVAL SHIPS Some of the terms used in connection with the motion of naval ships or sea-vessels are given below [Fig.17.7(a)]: (a) Bow is the fore or the front end. (b) Stern or aft is the rear end. (c) Starboard is the right-hand side when looking from the stern. (d) Port is the left-hand side when looking from the stern. (e) Steering is turning on the. The velocity reaches a maximum pointing outward at the far side position, is zero at the top and bottom, and is maximum pointing inward (negative) at the near side position. Thus, the forces from the torque don't push the wheel down; they push it around! Finally, if we integrate the velocity, we should get the distance the wheel element moves. The effect of gyroscopic couple on the aeroplane will be to dip the nose and raise the tail. 180) The engine of an aeroplane rotates in clockwise direction when seen from the tail end and the aeroplane takes a turn to the right
Check the below NCERT MCQ Questions for Class 11 English Snapshots Chapter 3 Ranga's Marriage with Answers Pdf free download. MCQ Questions for Class 11 English with Answers were prepared based on the latest exam pattern. We have provided Ranga's Marriage Class 11 English MCQs Questions with Answers to help students understand the concept very well Gyroscope Physics. Gyroscope physics is one of the most difficult concepts to understand in simple terms. When people see a spinning gyroscope precessing about an axis, the question is inevitably asked why that happens, since it goes against intuition. But as it turns out, there is a fairly straightforward way of understanding the physics of.
Therefore Maximum angular acceleration during pitching, α max = Φ(ω 1) 2. Effect of the Gyroscopic Couple on a Naval ship during Rolling:- We know that, for the effect of gyroscopic couple to occur, the axis of precession should always be perpendicular to the axis of spin. If, however, the axis of precession becomes parallel to the axis of. The maximum bending moment for a cantilever beam carrying a uniform distributed load of intensity . w /unit length over its entire span is given as (A) wl. 4 (B) wl. 8. 2 (C) wl. 2. 2 When the pitching of a ship is upward, the effect of gyroscopic couple acting on it will be (A) to raise the bow and lower the stern (B) to move the ship. Jul 08,2021 - Test: Fluctuating Load Consideration For Design & Miscellaneous - 2 | 20 Questions MCQ Test has questions of Mechanical Engineering preparation. This test is Rated positive by 87% students preparing for Mechanical Engineering.This MCQ test is related to Mechanical Engineering syllabus, prepared by Mechanical Engineering teachers The mass of the turbine rotor of a ship is 20 tonnes and has a radius ofgyration of 0.60 m. Its speed is 2000 r.p.m. The ship pitches 6° above and 6° below the horizontalposition. A complete oscillation takes 30 seconds and the motion is simple harmonic according the equation (2 sin (x) + cos (x)+1) maximum gyroscopic couple is.
Q)The gyroscopic acceleration is given by--> 69/6t Q)The total reaction of ground on the wheels of a vehicle due to gyroscopic couple and centrifugal force while negotiating curve is--> increased on outer wheels and decreased on inner wheels Q) The gyroscopic couple is introduced in a ship whose spin axis is parallel to star board, when i Check the below NCERT MCQ Questions for Class 11 Physics Chapter 4 Motion in a Plane with Answers Pdf free download. MCQ Questions for Class 11 Physics with Answers were prepared based on the latest exam pattern. We have provided Motion in a Plane Class 11 Physics MCQs Questions with Answers to help students understand the concept very well The rate of drift for a gyroscope with its axis horizontal thus varies from a maximum at the poles to zero at the equator. That is the rate of drift varies as the sine of the latitude. For a free gyroscope with its axis horizontal: Rate of Drift in degrees per hour = 15 O sin Latitude
. 01. During suction stroke, the inside pressure of cylinder is. Ans:- less then the atmospheric pressure. 02. The function of an oil control orifice is that it. Ans:- regulates the pressure of engine oil supplied by the oil pump for the lubrication of cylinder head mechanism and other purposes. 03 The effect of gyroscopic couple on the ship is. Theory of Machines Mcqs. March 28, 2019 BILAL KHATTAK 0 . A.to lower the bow and raise the stern B.to raise the bow and lower then stern C.to roll the ship slightly clockwise when viewed fro bow end D.None of the above. Related posts To determine the effect of active gyroscopic couple on a spinning disc and verify the gyroscopic effect. Study of Continuous Variable Transmission and Infinite Variable Transmission; Part B: Any Two. To draw conjugate profile for any general type of gear tooth. (Half imperial drawing sheet) To verify the cam jump phenomenon for an eccentric cam
It has a radius of gyration of 45 cm and a speed of 2900 r.p.m. clockwise, when looking from the stern. Answer the following When the ship is steering to the left in a curve of 110 m radius at a speed of 34 km/h, the gyroscopic couple is N-m When the ship is pitching in a simple harmonic motion, the bow falls with its maximum velocity Explanation: If the vehicle makes a turn towards the left the gyroscopic torque increases the force on the outer wheel.. Effect of Gyroscopic couple in an automobile while turning to left - Where, m = Mass of the vehicle in kg, W = Weight of the vehicle in Newton = mg, r W = Radius of the wheels in meters, R = Radius of curvature in meters (R > r W) h = Distance of center of gravity. MCQs: Calculate the speed of driven shaft in compound gear train, if the drivers have 40, 70, 100, and 150 teeth and followers have 15, 44, 60, 100 teeth.Speed of driving shaft is 150 rp
. Pitch cone angle = 12.36° & Pressure angle = 30° Pitch cone angle = 12.36° & Pressure angle = 30° Category: Mechanical Engineering Questions, Published by: T-Code Script 12. An aeroplane makes a complete half circle of 50 metres radius, towards left,when flying at 200 km per hr. The rotary engine and the propeller of the plane has a mass of 400 kg and a radius of gyration of 0.3 m. The engine rotates at 2400 r.p.m. clockwise when viewed from the rear. Find the gyroscopic couple on the aircraft. 13
Academia.edu is a platform for academics to share research papers Determine the gyroscopic couple and its effects upon the ship when the ship is steering to the right in a curve of 100 m radius at a speed of 16.1 knots (1 knot = 1855 m/hr). Calculate also the torque and its effects when the ship is pitching in simple harmonic motion, the bow falling with its maximum velocity Determine the gyroscopic couple, if the ship travels at 2 km/min and steer to the right in a curve of 65 m radius.The turbine rotor of a ship has a mass of 10tonnes and a radius of gyration 1.5 m. It rotates at 38r.p.s. anticlockwise, when looking from the stern and write the reactive gyroscopic effect
63. The maximum value of bending moment in a simply supported beam of length 4 m subjected to a UDL of intensity 20 kN/m over entire span will be— a. 40 KN-m b. 50 KN-m c. 60 KN-m d. 70 KN-m Answer: a 64. The maximum value of shear force in a simply supported beam of length 3 m subjected to a UVL of maximum intensity 20 kN/m, a (a) (i) Discuss the effect of the gyroscopic couple on a two wheeled vehicle while taking a turn. (6) (ii) A turbine of a ship has a mass of 20 tonnes and a radius of gyration of 0.75m. Its speed is 2000 rpm. The ship pitches 6 ° above and below the horizontal position. One complete oscillation takes 20 seconds and the motion is simple harmonic This set of Machine Dynamics Multiple Choice Questions & Answers (MCQs) focuses on Gyroscopic Couple. 1. The axis of precession is _____ to the plane in which the axis of spin is going to rotate. a) parallel b) perpendicular c) spiral d) none of the mentioned View Answer
gyroscopic couple on the aeroplane will be Option A: To dip the nose and raise the tail Option B: To raise the nose and tail Option C: To raise the nose and dip of the tail Option D: To dip the nose and tail Q22. For a disc with mass 20 kg, Radius of Gyration 20 cm, angular velocity 5 Maximum gyroscopic couple, Cmax = I.ω. ωpmax When the pitching is upward, the effect of the reactive gyroscopic couple, as shown in Fig. (b), will try to move the ship towards star-board. On the other hand, if the pitching is downward, the effect of the reactive gyroscopic couple, as shown in Fig. (c), is to turn the ship towards port side
Prediction and Estimation of Gyroscopic Couple by Analytical and Neural Network 1, Dilip Kumar Sonar, 2, Subham SenGupta 1, Asst.Prof. of Mechanical Engg. 1, 2, Dept of College of Engineering & Management Kolaghat. KTPP Township ABSTRACT: Newton carried out studies on the motion of earth which rotates about its axis and at the sam A rectangular beam 20 cm wide is subjected to a maximum shearing force of 10, 000 kg, the corresponding maximum shearing stress being 30 kg/cm 2. The depth of the beam is The depth of the beam is 1. 20 c Engineering Mechanics MCQ Objective Question and Answers Part 4. 92. Tangent of angle of friction is equal to. (e) friction force. 93. Kinetic friction is the. (e) dynamic friction. 95. The effort required to lift a load W on a screw jack with helix angle a and angle of friction <j) is equal to Answer: A. 20. Newton's third law implied that the.. a) The rate of change of momentum is equal to the force applied. b) For every action, there is an opposite reaction. c) The body tends to be rotated if the force is applied tangentially. d) The body is rest until a force is applied. Answer: B (a) maximum and zero (b) zero and maximum (c) minimum and maximum (d) zero and minimum (e) maximum and minimum. Ans: a. 80. Throw of a cam is the maximum distance of the follower from (a) base circle (b) pitch circle (c) root circle (d) prime circle (e) inner circle. Ans: a. 81. To obviate axial thrust, following gear drive is use
Electro-Chemical Transducers - Test. 10. Feedback Transducer System. The section contains questions and answers on feedback and inverse transducers, self balancing bridges and potentiometers, heat flow and beam balance systems, servo operated manometer, feedback pneumatic loadcell, feedback accelerometer system and its applications Answer A. 45)The S.F.D. for a 4 m long beam is a parabola with + 20 kN m value at both its ends and zero at the centre. If there are no couple moments acting on the beam, there will be ___________ acting on the beam. A.upward forces of 20 kN at both ends. B.downward force of 20 kN at both ends Air vessel in a reciprocating pump is used (a)to obtain a continuous supply of water at uniform rate (b)to reduce suction head (c)to increase the delivery head (d) none of the above 170. The work saved by fittingan air vessel to a single acting reciprocating pump is (a)39.2% (b)8404% (c)48.8% (d)92.3% 171 Similar MCQ: Smallest change which a sensor can detect is. Which of the following sensor is used in mobile phones MCQ. Which of the following sensor is used in mobile phones MCQ: Gyroscope; Compass; Gravity sensor; All of these; Correct answer: 4. All of these. A mobile phone is loaded with gyroscope, compass, as well as gravity sensor
UNIT 1. 9. a) w sinθ b) w cos θ c) w tan θ d)w cot θ. 108 The moment of force is zero when. a) The applied force is zero. b) The force is applied at the moment axis. c) distance is zero d ) all of the above. 109 If two forces of magnitude 2P and 4P act at a point on a body , then their maximum resultant is. 6P The gyroscope couple does not cause an effect on a.... The pitching of the ship is assumed to take place.... Effect of Gyroscopic Couple on a Navalship during Pitching & Rolling more Online Exam Quiz. Falling Film Evaporator. Responsive Overview - 7. Gravity Dam Design - Typical Cross-section. Succession. Terminology of Spur Gear Gyroscopic Couple If a uniform disc of polar moment of inertia is rotated about its axis with an angular velocity , its Angular Momentum is a vector and can be represented in diagram (c) by the line up which is drawn in the direction of the axis of rotation. The sense of the rotation is clockwise when looking in the direction of the arrow Reciprocating masses, Gyroscopes -Effect of Gyroscopic couple on automobiles, ships and aircrafts, Governors. Design of Machine Elements: Design for static and dynamic loading; failure theories; fatigue strength and the S‐N diagram; principles of the design of machine elements such as riveted, welded and bolted joints Gyroscope: Gyroscope and gyroscopic effects: Introduction, Angular velocity and acceleration, Gyroscopic torque (couple), Gyroscopic effect on airplane and naval ship, Stability of an automobile and a two-wheel vehicle.
CBSE Class 11 English Snapshots book Chapter 3 Ranga's Marriage Multiple Choice Questions (MCQs) with Answers. Here is a compilation of Free MCQs of Class 11 English Snapshots book Chapter 3- Ranga's Marriage.. Students can practice free MCQs as have been added by CBSE in the new exam pattern.At the end of Multiple Choice Questions, the answer key has also been provided for. caused by the couple the spinning mass of the gyroscope undergoes a change called the angle of precession. This cause the gyroscopic couple to incline to a certain degree so that it can retain its angular velocity. This angle of precession for different torques and couple can be analysed by this experiment. FIGURE:-2 = 0.8* 10-2 kg-m2 = 0.22 Membership 12-17 Membership 18-34 Membership 35-64 Membership 65 and over Membership couple / family. 1 year. 2 years. 1 Year. 2 Years. 12,00 $. Beneficiary. Message Maximum of 200 characters. Gift membership format : you will receive an email containing the gift membership as an attachment which can be printed as you wish or emailed
This is the Multiples Choice Questions Part 7 of the Series in Satellite Communications as one of the Communications Engineering topic. In Preparation for the ECE Board Exam make sure to expose yourself and familiarize in each and every questions compiled here taken from various sources including but not limited to past Board Examination Questions in Electronic System and Technologies. Theory of Structures MCQ Practice Questions (Civil Eng) Set 4. The equivalent length is of a column of length L having both the ends fixed, is: A. A masonry dam (density = 20, 000 N/m3) 6 m high, one metre wide at the top and 4 m wide at the base, has vertical water face GUJARATI MCQ; Theory of Machine. Theory of Machine The rotor of a ship rotates in clockwise direction when viewed from stern and the ship takes a left turn. The effect of gyroscopic couple acting on it will be To lower the bow and stern To raise the stern and lower the bow. Practice MCQ Questions for Class 12 Physics with Answers on a daily basis and score well in exams. Refer to the Moving Charges and Magnetism Class 12 MCQs Questions with Answers here along with a detailed explanation. Moving Charges and Magnetism Class 12 MCQs Questions with Answers. Question 1 Example 25.4 Calculate the maximum permissible train load that can be pulled by a locomotive with four pairs of driving wheels with an axle load of 28.42 t each on a BG track with a ruling gradient of 1 in 200 and a maximum curvature of 3 o , travelling at a speed of 48.3 km/h. Take the coefficient of friction to be 0.2