Description : Find total number coils in a spring having square and ground ends. Deflection in the spring is 6mm when load of 1100N is applied. Modulus of rigidity is 81370N/mm². Wire diameter and pitch circle diameter are 10mm and 50mm respectively. a) 7 b) 6 c) 5 d) 4
Last Answer : a) 7
Description : In designing a flange coupling, the pitch circle diameter of bolts is taken as (where d = Diameter of the shaft) (A) 2 d (B) 3 d (C) 4 d (D) 5 d
Last Answer : (B) 3 d
Description : In Opitz system, 2nd digit indicates a.Type and Shape b.External shape and external shape elements c.External plane surface finishing d.Auxiliary hole and gear teeth
Last Answer : b.External shape and external shape elements
Description : An open-circuit fault between the pressure switch and the 'annunciator module' shown in the illustration would cause the alarm circuit to react in the same manner as if ___________. EL-0094 A. 3.5 ... below switch setting C. 50 PSI were applied to the 'setpoint module' D. the pressure switch closed
Last Answer : Answer: B
Description : If Relay #5 changed contact position grounding the 'auto' input to the 'pitch controller module', pitch control would be effected by the _________________. EL-0095 A. pitch feedback potentiometer B. Engine room thrust split potentiometer C. Engine room thrust lever only D. Bridge thrust lever only
Description : The 'pitch controller module' shown in the illustration is fed the actual pitch position of the propeller from the _____________. EL-0095 A. 'pitch meter' B. 'pitch feedback potentiometer' C. #5 relay position D. pitch error signal
Description : In a single threaded worm and worm wheel the number of teeth on the worm wheel is 60. The diameter of the effort wheel is 12 cm and that of load drum is 8 cm. The velocity ratio will be a.90 b.120 c.60 d.45 e.107 dynes
Last Answer : a. 90
Description : In a single threaded worm and worm wheel the number of teeth on the worm wheel is 80. The diameter of the effort wheel is 12 cm and that of load drum is 8 cm. The velocity ratio will be a.60 b.45 c.120 d.107 dynes e.90
Last Answer : c. 120
Description : The moment of inertia of a semi-circle of radius r with respect to a centroidal axis parallel to the diameter is a.0.33 r2 b.0.11 r2 c.0.055 r2 d.0.05 r2 e.0.22 r2
Last Answer : b. 0.11 r2
Description : A single purchase crab has a handle 45 cm long and a drum of 25 cm diameter. The pinion has 30 teeth and spur has 150 teeth. The efficiency of the machine is 75%. If the maximum force that can be applied is ... maximum load that can be lifted will be a.9860 N b.6750 N c.20250 N d.1250 N e.13500 N
Last Answer : b. 6750 N
Description : In a shell and tube heat exchanger, square pitch compared to triangular pitch (A) Gives a higher shell side pressure drop (B) Gives a lower shell side pressure drop (C) Can pack more surface area into a shell of given diameter (D) None of these
Last Answer : (A) Gives a higher shell side pressure drop
Description : Which of the following module of FEA is used to determine natural frequency? a.Static analysis b.Thermal analysis c.Modal analysis d.All of the above
Last Answer : c.Modal analysis
Description : What Is Module?
Last Answer : It is the ratio between the pitch diameter and the number of teeth in the gear.
Description : In an epicycle gear reduction unit, the ratio of the number of teeth of the internal gears to the sun gear is: a) 3:1 b) 4:1 c) 2.5:1 d) 4.5:1
Last Answer : b) 4:1
Description : The method of alighting the aeroplane on water during a ditching is to: a. Carry out a normal approach with flaps and gear selected as normal but to calculate all speeds plus 10kts b. Reduce ... d. Fly a normal approach to stalling speed and then drop the aeroplane vertically onto the water
Last Answer : c. Fly a normal approach but keep the gear up and land at lowest possible speed with the nose raised for the tail to strike first
Description : How to write a Python program (i)to calculate area of a circle and (ii)to find if a given number is even or odd. -Python
Last Answer : (i) # 1.Circle pi = 3.14 r = int(input("Please enter the Radius of the circle:")) area = pi*r*r print("Area of the circle is" + str(area) + "sq ms") (ii) # 2. Odd Number & Even Number Number = int( ... Number % 2 == 0): print("This is an Even Number") else: print("It's an Odd Number")
Description : In a shell and tube heat exchanger, the shell side fluid velocity can’t be changed by changing the (A) Tube layout (B) Tube diameter (C) Tube pitch (D) Number of baffles
Last Answer : (B) Tube diameter
Description : how should I calculate the pitch of the metric thread
Last Answer : There are tables for that. The pitch is determined by the thread diameter.
Description : What is circle for on football pitch?
Last Answer : its the center of the pitch where they kick off you gibbon
Description : State the principle of operation of the gear box in terms of Torque, speed and diameter of the gear.
Last Answer : In a gear box, the counter shaft is mashed to the clutch with a use of a couple of gear. So the counter shaft is always in running condition. When the counter shaft is bring ... lubricant. This prevents excessive wear and early failure. Therefore a gearbox runs partially filled with lubricant oil.
Description : What is the gain, in dB of a helical antenna with diameter of λ/3, 10 turns at pitch of λ/4, used at 100 MHz? A. 16 B. 41.1 C. 31.4 D. 1.25
Last Answer : A. 16
Description : Baffle spacing (A) Is not the same as baffle pitch (B) Should be less than one fifth the diameter of the shell (C) Should be less than the inside diameter of the shell (D) None of these
Last Answer : (C) Should be less than the inside diameter of the shell
Description : Shell side pressure drop in a shell and tube heat exchanger does not depend upon the (A) Baffle spacing & shell diameter (B) Tube diameter & pitch (C) Viscosity, density & mass velocity of shell side fluid (D) None of these
Last Answer : (D) None of these
Description : A screw is specified by (A) Major diameter (B) Minor diameter (C) Pitch diameter (D) Mean diameter
Last Answer : (A) Major diameter
Description : The largest diameter of external or internal screw thread is called (A) Major diameter (B) Minor diameter (C) Pitch diameter (D) None of the above
Description : The designation M 36 × 2 means (A) Metric fine threads of 36 mm outside diameter and 2 mm pitch (B) Metric coarse threads of 36 mm outside diameter and 2 mm pitch (C) Metric threads of 36 mm pitch diameter and 2 mm pitch (D) Metric threads of 36 mm core diameter and 2 mm pitch
Last Answer : (A) Metric fine threads of 36 mm outside diameter and 2 mm pitch
Description : Minimum pitch of transverse reinforcement in a column is (A) The least lateral dimension of the member (B) Sixteen times the smallest diameter of longitudinal reinforcement bar to be tied (C) Forty-eight times the diameter of transverse reinforcement (D) Lesser of the above three values
Last Answer : Answer: Option D
Description : The maximum longitudinal pitch in bolted joints, subjected to tensile forces, wherein t = thickness of the plate and D = diameter of bolt, is (a) 32 D (b) 16 D (c) 32 t (d) 16 t
Last Answer : (d) 16 t
Description : The minimum pitch of rivets of diameter ‘d’ in steel plates shall be a) 2 x d b) 3 x d c) 1.75 x d d) 2.5 x d*
Last Answer : d) 2.5 x d*
Description : In cell formation using production flow analysis, the following process will be left out of theanalysis a.Grinding b.Milling c.Drilling d.Gear cutting
Last Answer : d.Gear cutting
Description : If for power transmission a gear train consisting of 8 gears is used, then a.the motion of driver and follower will be in the same direction b.the motion of driver and follower will be in the opposite directions c.either of (A) or (B) above d.None of the above e.107 dynes
Last Answer : b. the motion of driver and follower will be in the opposite directions
Description : If for power transmission a gear train consisting of 11 gears is used, then a.the motion of driver and follower will be in the same direction b.The motion of driver and follower will be in the opposite direction c.either of (A) or (B) above d.None of the above e.107 dynes
Last Answer : a. the motion of driver and follower will be in the same direction
Description : Which of the following is scalar quantity a.Area of triangle b.Displacement of a particle c.Acceleration of car d.Force of friction e.Velocity a gear
Last Answer : a. Area of triangle
Description : What Do You Mean By Bevel Gear?
Last Answer : These gears have intersecting axis. Bevel gears are used to connect shafts which are not parallel and when their axis meet at an angle and found with straight, helical and spiral teeth.
Description : What Is Spur Gear?
Last Answer : It is a common type of gear having teeth in straight. It is used to transmit the motion on parallel shafts and used for all general purpose for transmitting motion.
Description : The device for engaging and disengaging the power shaft from the gearbox is known as 1. shaft 2. Gear 3. Clutch 4. circuit
Last Answer : ans 3
Description : The pump used in airplane sprayers: A. Dentrifugal and gear pump B. Gear and Diaphragm pump C. Diaphragm and centrifugal pump D. Plunger and centrifugal pump
Last Answer : Dentrifugal and gear pump
Description : The pump is used in power-operated sprayer is: A. Plunger type B. Diaphragm type C. Gear type D. Piston type
Last Answer : Gear type
Description : A power tiller consist of the following main components a) Engine c) Transmission gear b) Clutch d) All of the above
Last Answer : All of the above
Description : The lateral movement of disc on shaft is called as A) Spool. C) Gang B) Bearing D) Gear
Last Answer : Spool
Description : The operating range or reach capability of robot is known as ____ in robotics a.Roll b.Pitch c.Yaw d.Speed of movement
Last Answer : c.Yaw
Description : Circular motion along an axis is known as ____ in robotics. a.Pitch b.Roll c.Yaw d.None of the above
Last Answer : b.Roll
Description : Up and down motion along an axis known as ____ in robotics a.Pitch b.Roll c.Yaw d.None of the above
Last Answer : a.Pitch
Description : In a CNC program block, N05 GO1 G91 G33 X20 Z-40 K5……, K refer to a.Depth of cut b.Pitch c.Multiple Threading Cycle d.Feed
Last Answer : b.Pitch
Description : When a smooth curve is approximated through the data points, then the curve is knownas a.approximation curve b.pitch curve c.data curve d.interpolant curve
Last Answer : a.approximation curve
Description : When the curve passes through all the data points, then the curve is known as a.approximation curve b.pitch curve c.data curve d.interpolant curve
Last Answer : d.interpolant curve
Description : When a smooth curve is approximated through the data points, then the curve isknown as a.interpolant curve b.approximation curve c.pitch curve d.data curve
Last Answer : b.approximation curve
Description : Define Diameteral Pitch?
Last Answer : Diameteral pitch is the ratio between the number of teeth of a gear and the pitch circle diameter.
Description : A butt weld has been made by MMA in a 50mm thick impact tested steel plate. The welding electrode used was a basic type, 5mm diameter. The measured welding parameters for one of the runs was 250 amps, 24 volts, using DC ... given to calculate the arc energy b) 1.9 kJ/mm c) 1.87 kJ/mm d) 2.0 kJ/mm
Last Answer : d) 2.0 kJ/mm
Description : A circle with centre O and diameter COB is given. If AB and CD are parallel, then show that chord AC is equal to chord BD. -Maths 9th
Last Answer : O Join AC and BD. Given, COB is the diameter of circle. ∠CAB = ∠BDC = 90° [angle in a semi-circle] Also, AB II CD ∠ABC = ∠DCB (alternate angles] Now, ∠ACB = 90° - ∠ABC and ∠DBC = 90° - ∠DCB = ... = ∠DBC BC = BC [common sides] ΔABC = ΔDCB [by ASA congruency] ∴ AC = BD [by CPCT] Hence Proved.