Description : In a hydraulic lift system the output force is greater than the input force because?
Last Answer : A
Description : A hydraulic press has a ram of 15 cm diameter and plunger of 1.5 cm. It is required to lift a weight of 1 tonne. The force required on plunger is equal to (A) 10 kg (B) 100 kg (C) 1000 kg (D) 1 kg
Last Answer : Answer: Option A
Description : ‘Hydraulic brakes’ and ‘Hydraulic lift’ are devices, why are fluids used in them? -Do You Know?
Last Answer : answer:
Description : ‘Hydraulic brakes’ and ‘Hydraulic lift’ are devices, why are fluids used in them?
Last Answer : – For transmitting pressure
Last Answer : For transmitting pressure
Description : Pick up the correct statement from the following: (A) Air lift pumps are generally used for pumping water from deep wells (B) Jet pumps are generally used for pumping water from small wells (C) The hydraulic ram works on the principle of water hammer (D) All the above
Last Answer : (D) All the above
Description : Differential lock in tractor is used to improve a) Lateral stability b) Braking performance c) Hydraulic lift d) Traction of a wheel
Last Answer : Braking performance
Last Answer : ans d
Description : 1. Hydraulic brakes' and Hydraulic lift' are devices, why are fluids used in them? 2. Which person won seven gold medals in swimming for the U.S. in the 1972 Olympic? 3. Which Agriculture export ... is situated in which place? 20. Who was defeated at kannauj in the hands of Sher Shah in 1540?
Last Answer : Answer : 1. For transmitting pressure 2. Mark Spitz 3. Rice 4. Sambhar 5. Samudragupta 6. Electric power generation 7. July, 1947 8. U-235 9. Rajasthan 10. Quran 11. Virender Sehwag 12. ... 16. Either House of Parliament 17. Radon gas 18. Shri V. T. Krishnamachari 19. Chickmaglur 20. Humayun
Description : If output voltage is greater than input voltage, then transformer is A. step up B. step down C. faulty D. fatal
Last Answer : step up
Description : When the initial slope of input sine wave is greater than the slew rate of an OPAMP, the output: (1) Has no offset (2) Approaches to triangular waveshape (3) Is pure sinusoidal (4) Is square wave
Last Answer : When the initial slope of input sine wave is greater than the slew rate of an OPAMP, the output: Approaches to triangular waveshape
Description : The output Y of a 2-bit comparator is logic 1 whenever the 2-bit input A is greater than the 2-bit input B. The number of combinations for which the output is logic 1, is (A) 4 (B) 6 (C) 8 (D) 10
Last Answer : The output Y of a 2-bit comparator is logic 1 whenever the 2-bit input A is greater than the 2-bit input B. The number of combinations for which the output is logic 1, is 6
Description : Computer follows a simple principle called GIGO which means: 1) Garbage in garbage out 2) Garbage input good output 3) Good input good output 4) Greater instructions greater output
Last Answer : 1) Garbage in garbage out
Description : If the input force on a simple machine is 2 N and the output force is 4 N what is it and mechanical advantage?
Last Answer : 80 Is the Output force
Description : Transmissibility is the ratio of a. force transmitted and exciting force b. force applied and the resulting displacement c. input displacement and output displacement
Last Answer : a. force transmitted and exciting force
Description : In a second class lever why must you exert input force over a greater distance?
Last Answer : If the input force is applied at a greater distance than thelength of the effort arm is increased thereby reducing theeffort.
Description : The apparent weight of a person in a lift which is moving down with uniform acceleration is _______. (1) greater than the weight when the person is stationary (2) twice the weight when the person ... than the weight when the person is stationary (4) same as the weight when the person is stationary
Last Answer : (3) less than the weight when the person is stationary
Description : If the angle of attack is increased beyond the critical angle of attack, the wing will no longer produce sufficient lift to support the weight of the aircraft: a. Unless the airspeed is greater ... below the natural horizon d. In which case, the control column should be pulled-back immediately
Last Answer : b. Regardless of airspeed or pitch attitude
Description : Which statement is true regarding the opposing forces acting on an aeroplane in steady-state level flight? a. Thrust is greater than drag and weight and lift are equal b. These forces are equal ... greater than weight d. Thrust is slightly greater than lift, but the drag and weight are equal
Last Answer : b. These forces are equal
Description : Which among the following is correct about Device Drivers: a) It operate or control a particular type of device that is attached to a computer b) Each device needs at least one corresponding device driver ... computer typically needs more than one device driver d) None of These e) All of the Above
Last Answer : e) All of the Above
Description : Charles Babbage is considered the father of modern computers because A) of his difference engine B) of his analytical engine C) his concept of input, mill and output D) All of above
Last Answer : Answer : C
Description : weight of water, the hydraulic mean depth of the sewer and the bed slope w is the unit of the sewer, then the tractive force exerted by flowing water, is A. w r S S B. w r1/2 C. w r S D. w r2/3
Last Answer : ANS: A
Description : Purpose of hydraulic accumulator is to (A) Ensure intermittent supply of hydraulic pressure (B) Increase the pressure and store/ accumulate it (C) Accumulate pressure to increase force (D) Generate high pressure to operate hydraulic machines like cranes, lifts, presses etc
Last Answer : (D) Generate high pressure to operate hydraulic machines like cranes, lifts, presses etc
Description : A hydraulic press has a ram of 10 cms in diameter and a plunger of 1 cm in diameter. The force required on the plunger to raise a weight of 10 tons on the ram is __________ kg. (A) 10 (B) 100 (C) 1000 (D) 10000
Last Answer : (B) 100
Description : The center of pressure of a surface subjected to fluid pressure is the point (A) On the surface at which resultant pressure acts (B) On the surface at which gravitational force acts (C) At which all hydraulic forces meet (D) Similar to metacentre
Description : The piston rod of a hydraulic cylinder exerts an operating force of 10kN. The allowable stress in the cylinder is 45N/mm². Calculate the thickness of the cylinder using Lame's equation. Diameter of the cylinder is 40mm and ... is 10MPa. a) 2.05mm b) 4.2mm c) 5.07mm d) None of the listed
Last Answer : c) 5.07mm
Description : The main hydroelectric power potential of the Indus river system lies in India and not in Pakistan because (a) the need for hydroelectric power is greater in India than the Pakistan (b) India ... greater labour force to develop hydroelectric power (d) the mountain stages of these rivers lie in India
Last Answer : Ans: (d)
Description : With air in the hydraulic system, you would: a. Ignore it because normal operation would remove it b. Bleed the air out of the system c. Allow the accumulator to auto
Last Answer : b. Bleed the air out of the system
Description : (5) A 6500-kg helicopter accelerates upward at 0.60 m/s² while lifting a 1200-kg car. (a) What is the lift force exerted by the air on the rotors? (b) What is the tension in the cable (ignore its mass) that connects the car to the helicopter?
Last Answer : I'll give you some hints: The mass of the helicopter is irrelevant to the solution. All you needs is the mass of the load (the car) and the acceleration to solve the problem. Remember that the ... it. Tension is directly related to force. Now go find the equations in the text, plug and crank.
Description : When pictorially representing the lift force on an airfoil it is shown as acting at right angles to the?
Last Answer : MAIN CAMBER LINE
Description : Which of the following conditions must be satisfied for lift force to be developed? (A) The body should be bluff body (B) The body should be stream lined (C) Circulation around the body is essentially required (D) The main stream velocity must approach the velocity of sound in that fluid medium
Last Answer : (C) Circulation around the body is essentially required
Description : It is the unbalanced force developed in a turbo jet engine that is caused by the difference in the momentum of the low-velocity air entering the engine and the high velocity exhaust gases leaving the engine. a. Fall b. Lift c. Drag d. Thrust
Last Answer : Thrust
Description : To maintain altitude, what must be done as Indicated Airspeeed (IAS) is reduced? a. Decrease angle of attack to reduce the drag b. Increase angle of attack to maintain the correct lift force c. Deploy the speed brakes to increase drag d. Reduce thrust
Last Answer : b. Increase angle of attack to maintain the correct lift force
Description : A ball bounces higher at high altitudes than in plains. This is because (a) the pressure on higher altitudes is lower than that in plains (b) Downward pull due to gravity is less at higher altitudes ... ball (d) You become more energetic at hills, so greater the force applied, higher goes the ball.
Last Answer : Ans:(a)
Description : A hydrogen filled balloon rises in air because (a) The atmospheric pressure decreases with altitude (b) The acceleration due to gravity decreases with altitude (c) The density of air decreases with ... The buoyant force exerted by the air on the balloon is greater than the weight of the balloon
Last Answer : Ans:(d)
Description : A circular sewer section is preferred to because A. It is cheaper in construction B. It provides maximum area for a given perimeter C. It provides maximum hydraulic mean depth D. All the above
Last Answer : ANS: D
Description : A circular gravity aqueduct is not generally preferred to because of (A) Its maximum hydraulic mean depth (B) Maximum area per unit of wetted perimeter (C) Minimum cost of construction (D) Its proper support on the ground
Last Answer : (D) Its proper support on the ground
Description : Hydraulic lime is not used in plastering because it may result in a) Blistering* b) Efflorescence c) Flaking d) Fluorescence
Last Answer : a) Blistering*
Description : What should be the the input and output process in order to have perfect accounting system?
Last Answer : Both have are the real entity seen by the user and the accounting system is the one which calculates the sccounting and process the input and gives the result as output
Description : Charles Babbage was awarded by Royal Society for his A) Difference Engine B) Analytic Engine C) Binary System in Analytic Engine D) His concept of input, mill, output and storage
Last Answer : Answer : A
Description : Computer system comprises of major units A) input unit, output unit, control unit B) input unit, output unit, control unit and storage C) input unit, output unit, central processing unit and storage unit D) input, output and storage units
Description : An input /output device at which data enters or leaves a computer system is A) Keyboard B) Terminal C) Printer D) Plotter
Last Answer : Answer : B
Description : A system is A) an integration of different units so as to achieve an objective B) input unit C) input and output unit D) input, output and storage units
Description : The BIOS is the abbreviation of . A) Basic Input Output System B) Best Input Output System C) Basic Input Output Symbol D) Base Input Output System
Description : Which terminology deals with the excitation or stimulus applied to the system from an external source for the generation of an output? a. Input signal b. Output signal c. Error signal d. Feedback signal
Last Answer : Ans: A
Description : A memory in CPU that holds program instructions, input data, intermediate results and the output information produced during processing is __________ A. System B. Primary Memory C. Secondary Memory D. None of the above
Last Answer : B. Primary Memory
Description : _________is a copy of Basic Input/Output Operating System (BIOS) routines from Read Only Memory (ROM) into a special area of RAM so that they can be accessed more quickly. A. Dynamic RAM B. Shadow RAM C. Synchronous Graphics RAM D. Video RAM
Last Answer : B. Shadow RAM
Description : The computer or system peripherals that receives data from processing unit are called ___________ A. Input Devices B. Output Devices C. Both (A) and (B) D. None of the Above
Last Answer : B. Output Devices
Description : A temperature instrumentation system for an engine room console consists of a resistance temperature detector (RTD), a measuring bridge circuit, and a meter (or alarm circuit).Which of the following ... is zero. D. The input voltage of the resistance bridge is the constant temperature signal.
Last Answer : Answer: C