Description : What is the primary measurement application for tuning forks?
Last Answer : They are used to monitor fixed motor speeds.
Description : ------------ are called cantilever laminated springs (a) Semi-elliptical springs (b) quarter elliptical springs (c) both (a) and (b) (d) none (Ans: b)
Last Answer : (b) quarter elliptical springs
Description : The type of spring used to achieve greater load carrying capacity within given space is (a)spiral spring (b) springs in series (c)multi-leaf spring (d) concentric spring
Last Answer : (d) concentric spring
Description : In leaf springs the longest leaf is known as (a) Lower leaf (b) Master leaf (c) Upper leaf (d) None of these
Last Answer : (b) Master leaf
Description : Laminated springs are used in (a) Watches (b) Sofas (c) Motorcycles (d) None
Last Answer : (d) None
Description : A concentric spring consists of 2 sprigs of diameter 10mm and 4mm. The net force acting on the composite spring is 5000N. Find the force acting on each of the two springs. (a) 1232.2N and 3767.8N (b) 786.4N and 4213.6N (c) 689.7N and 4310.3N (d) 645.3N and 4354.7N
Last Answer : (c) 689.7N and 4310.3N
Description : When two Belleville springs are in parallel, half force is obtained for a given deflection. (a) Half force (b) Double force (c) Same force (d) Can’t be determined
Last Answer : (b) Double force
Description : The following is a type of leaf springs (a) three Quarter elliptic (b) semi elliptic (c) quarter elliptic (d) all of the above
Last Answer : (d) all of the above
Description : Coil springs absorb shocks by (a) bending (b) twisting (c) compression (d) tension
Last Answer : (c) compression
Description : Leaf springs absorb shocks by (a) bending (b) twisting (c) compression (d) tension
Last Answer : a) bending
Description : The laminated springs are given initial curvature (a) To have uniform strength (b) To make it more economical (c) So that plates may become flat, when subjected to design load (d) None of these
Last Answer : (c) So that plates may become
Description : The springs in brakes and clutches are used (a) To apply forces (b) To measure forces (c) To absorb shocks (d) To absorb strain energy
Last Answer : (a) To apply forces
Description : eaf springs are designed on the basis of (a) Maximum bending stresses (b) Maximum deflection (c) Maximum bending as well as maximum deflection (d) None
Last Answer : (c) Maximum bending as well as maximum deflection
Description : Leaf springs use (a) All full length leaves (b) All leaves of different lengths (c) Few full length leaves with truncated leaves (d) None
Last Answer : (c) Few full length leaves with truncated leaves
Description : Leaf springs are used in (a) Scooters (b) Bikes (c) Trucks (d) None
Last Answer : (c) Trucks
Description : Springs with rectangular or square cross section used for a. higher stiffness b. larger volume c. larger length d. smaller length
Last Answer : b. larger volume
Description : Two concentric springs with stiffness equal to 100 N/mm and 80 N/mm respectively, when subjected to load of 900N will deflect by a. 9mm b. 11.25 mm c. 5mm d. 31.5 mm
Last Answer : c. 5mm
Description : Coil springs absorb shocks by (A) bending (B) twisting (C) compression (D) tension
Last Answer : (C) compression
Description : Wahl’s stress concentration factor is used in close coiled springs under axial load to account for (a) Shear effect (b) Bending effect (c) Compression effect (d) none
Last Answer : (b) Bending effect
Description : When two helical springs of equal lengths are arranged to form a cluster spring, then a. Shear stress in each spring will be equal b. Load taken by each spring will be half the total load c. Only A is correct d. Both A and B is correct
Last Answer : d. Both A and B is correct
Description : A railway wagon moving with a speed of 1.5m/s is brought to rest by bumper consisting of two springs. Mass of wagon is 100kg. The springs are compressed by 125mm. Calculate the maximum force acting on each spring. a) 1200N b) 1500N c) 1800N d) 2000N
Last Answer : c) 1800N
Description : The shear stress concentration factor (Ks) in mechanical springs is given as _____ a. (1 + 0.5 / C) b. 0.615 / C c. (1 + 0.615 / C) d. [(4C – 1) / (4C + 1)] + [0.615 / C]
Last Answer : a. (1 + 0.5 / C)
Description : Which type of springs have only active coils? a. Helical compression springs b. Helical tension springs c. Both a. and b. d. None of the above
Last Answer : b. Helical tension springs
Description : Solid length for helical compression springs having square and ground ends is given as _________. a. (n + 2)d b. (n + 3)d c. (n + 1)d d. None of the above
Last Answer : a. (n + 2)d
Description : Why are mechanical springs used? a. To apply force b. To store energy c. To measure force d. All of the above
Last Answer : d. All of the above
Description : Free length for helical compression springs having square ends is given as ________. a.pn + 2d b.pn + 3d c. 2(p + d) d.pn + 4d
Last Answer : b.pn + 3d
Description : Two close-coiled helical springs are equal in all respects except the number of turns. If the number of turns are in the ratio of 2:3, then the stiffness of the spring will be in the ratio of (a) 2:3 (b) 4:9 (c) 3:2 (d) 9:4
Last Answer : (c) 3:2
Description : A close –coiled helical spring is cut into two equal parts. The stiffness of the resulting springs will be (a) same (b) double (c) half (d) One-fourth
Last Answer : (b) double
Description : The close-coiled helical springs ‘A’ and ‘B’ are of same material, same coil diameter, same wire diameter and subjected to same load. If the number of turns of spring ‘A’ is half that of spring ‘B’, the ratio of deflection of spring ‘A’ to spring ‘B’ is (a)1/2 (b) 1 (c) 2 (d) 4
Last Answer : (a)1/2
Last Answer : (c) So that plates may become flat, when subjected to design load
Description : In thermo-couple instruments, in which of the following is an emf caused if the junction of two wires of dissimilar metals is heated and the free or cold ends are connected to a milli-voltmeter? A) Kelvin effect B) Hot wire effect C) Seebeck effect D) Faraday effect
Last Answer : In thermo-couple instruments, in which of the following is an emf caused if the junction of two wires of dissimilar metals is heated and the free or cold ends are connected to a milli-voltmeter? A) Kelvin effect B) Hot wire effect C) Seebeck effect D) Faraday effect
Description : A compression spring is made of music wire of 2 mm diameter having a shear strength and shear modulus of 800 Mpa and 80 Gpa respectively. The mean coil diameter is 20mm, free length is 40 mm, and the number ... by 8 times b. decreased by 2 times c. increased by 2 times d. decreased by 8 times
Last Answer : a. increased by 8 times
Description : What kind of musical instruments could a cat imitate?
Last Answer : Busted bagpipes
Description : Which musical instruments makes the best/worst sound, in your opinion?
Last Answer : I like all kinds of instruments, as long as they make a good piece of music.
Description : Anyone know of a place where they will buy used musical instruments?
Last Answer : Easier to buy than to sell. My daughter tried to sell an elegant little baby grand piano on Craig’s List and didn’t get one offer. If you want a tax deduction, give them to the music department of your local high school or college or university. Or post a notice on their bulletin boards.
Last Answer : All of them - provided the musician takes them in hand :)
Description : Do you think it is important for children to learn how to play musical instruments?
Last Answer : All my children learned piano. .Only one pursued her knowledge and skill into diploma degree in Music. She plays violin and guitar, as well. Another daughter plays piano, and ukelele.
Description : In musical groups that use electronic instruments sounds are sequenced and assembled using a process called?
Last Answer : Need answer
Description : The Lesser-Known Musical Instruments?
Last Answer : We all have a good idea what a violin, guitar, and a piano looklike, but did you ever wonder what a sackbutt was? Have you everheard of a crumhorn? What about a ... renaissance musicwith an authentic sound. Modern sackbutt players include theEnglish Cornett and Sackbut Ensemble, the London Sackbutt
Description : Optical fibres are mainly used in- (1) Communication (2) Weaving (3) Musical Instruments (4) Food Industry
Last Answer : (1) Communication Explanation: Optical Fibres used for Broadcasting. These cables are used to transmit high definition television signals which have a greater bandwidth and speed.
Description : Current measuring instruments must always be connected in _____________. A. series with a circuit B. parallel with a circuit C. series-parallel with a circuit D. delta with the shunt
Last Answer : Answer: A
Description : Name the instruments used for measuring each of the following: (i) Pressure (ii) Voltage (iii) Purity of milk (iv) Temperature (v) Velocity of wind
Last Answer : Answers: (i). Barometer (ii). Voltmeter (iii). Lactometer (iv). Thermometer (v). Anemometer
Description : On all instruments like measuring cylinder, pipette and burette, readings are always taken at the bottom of the meniscus of liquid. This is not true for liquids like A. Oil B. Ink C. Mercury D. Seawater
Last Answer : Mercury
Description : What are the possible errors in induction (energy meter) measuring instruments?
Last Answer : a. Phase error: Field flux in induction meter does not lag 90° behind the supply voltage due to its resistance. This can be adjusted by copper shading rings, which are placed at the central limb of the ... to prevent rotation, when one of the holes comes under one of the pole of the shunt magnet.
Description : What are the operating principles of electrical measuring instruments?
Last Answer : a. Magnetic effect. b. Electro dynamic effect. c. Electro magnetic effect. d. Thermal effect. e. Chemical effect. f. Electro static effect.
Description : What are the classifications of electrical measuring instruments?
Last Answer : a. Absolute instruments. These instruments give the value of the quantity to be measure in terms of the constant of the instrument and their deflection only. There is no any calibrated scale. b. ... to be measured with the deflection of needle or pointer of that meter over a calibrated scale.
Description : Vibration measuring instruments are classified on the basis of ____________. (A) contact between the vibrating system and measuring instrument (B) the requirement of power source (C) method of measurements (D) all of the above
Last Answer : (D) all of the above
Description : The instruments which are used to measure the ___________ of a vibrating body are called vibration measuring instrument. (A) displacement (B) velocity (C) acceleration (D) all of the above