Determine the estimated weigh to fan A-36 steel plates size 1⁄2x4x8

Determine the estimated weigh of A-36 steel plates size 3/16x6’x20’

The minimum clearance allowed ro meashing spur gears with a circular pitch of .1571 and diameter pitch of 20. The spur gear have 25 teeth

A cylindrical tank with 10” inside diameter contains oxygen gas at 2500 psi. Calculate the required wall thickness in (mm) under stress of 28,000 psi

A 3”0 diameter short shaft carrying 2 pulleys close to the bearings transmit how much horsepower if the shaft makes 280 rpm.

What pressured required to punch a hole 2” diameter through a 1⁄4” steel plate?

What is the working strength of a 2” bolt which is screwed up tightly in a packed joint when the allowable working stress 12,000 psi?

Compute the working strength of 1” bolt which is screwed up tightly in packed joint when the allowable working stress is 13,000 psi.

Compute the speed of the gear mounted on a 52.5 mm diameter shaft receiving power from a driving motor with 250 Hp.

The minimum whole depth of spur gear of 14-1/2 deg. Involute type with diametral pitch of 24 and circular pitch of 0.1309.

What is the frictional HP acting on a collar loaded with 100 kg weight? The collar has an outside diameter of 100 mm and an internal diameter of 40 mm. The collar rotates at 1000 rpm and the coefficient of friction between the collar and the pivot surface is 0.15?

A solid cylindrical shaft 48.2 cm long is used for a transmission of mechanical power at a rate of 37 KW running at 1760 rpm. The ss is 8.13 Mpa. Calculate the diameter.

An internal gear is set up with a 5-in. diameter opinion and center distance of 18 inches. Find the diameter of the internal gear.

A 100 Hp engine running at 225 rpm is belted to an electric generator. The band wheel in the engine is 6 feet in diameter. Assuming an arc of contact on the generator pulley to be 150°, determine the necessary width for a double-ply oak tanned leather belt 3/8 in. thick.

A hallow shaft with outside diameter of 14 cm and wall thickness of 0.8 cm transmits 200 KW at 400 rpm. What must be the angular deflection of the shaft if the length is 5 meters? The material of the shaft is C4140 steel.

A 2.5” diameter by 2 in. long journal bearing is to carry a 5500-lb load at 3600 rpm using SAE 40 lube oil at 200°F through a single hole at 25 psi. Compute the bearing pressure

Determine the thickness of a steel air receiver with 30 inches diameter and pressure load of 120 psi, design stress of 8000 psi.

A short 61 mm  shaft transmits 120 Hp. Compute the linear spee dof a pulley 55 cm  mounted on the shaft.

What is the modulus of elasticity if the stress is 44,000 psi and a unit strain of 0.00105?

A 2-in solid shaft is driven by a 36-in. gear and transmits power at 20 rpm. If allowable shearing stress is 12 ksi, what horsepower can be transmitted?

Using oxyacetylene welding method to weld a 3ft. long seam in a 3/8 in. thick plate at a consumption rate of 9 cu.ft./ft. of weld for oxygen and 7 cu.ft./ft. for acetylene. What is the total combined gas consumption in cu. Ft.?

A helical spring having squared and ground ends has a total of 18 coils and its material has modulus of elasticity in shear of 78.910 GPa. If the spring has an outside diameter of 10.42 cm and a wire diameter of 0.625 cm, compute the maximum deflection that can be produced in the spring due to a load of 50 kgs.

With the electric arc welding rate of 18 in/min, how long will it take to weld a 1⁄2 in. thick plate by 3 ft long seam?

How long will it take to mill a 3⁄4” by 2” long keyway in a 3” diameter shafting with a 24 tooth cutter turning at 100 rpm and 0.005” feed/tooth?

How long will it take to saw a rectangular piece of aluminum plate 8 in. wide and 11⁄2 in. thick if the length of the cut is 8 in., the power hacksaw makes 120 rev/min and average feed per stroke is 0.0060 in.?

A cast iron flywheel is rotated at a speed of 1200 rpm and having a mean rim radius of 1 foot. If the weight of the rim is 30 lbs., what is the centrifugal force? Use factor C=4

A steel cylindrical air receiver with 5 feet diameter and pressure load of 180 psi, design stress of 9500 psi maximum. The pressure vessel is to be provided with 11⁄2” diameter drain valve installed at the bottom of the vessel and safety pressure relief valve installed either at the top most or at the side with pop-out rating of 200 psi. Assume a 100% weld joint efficiency. The lap welding tensile strength is 65,000 psi. Determine the bursting pressure of this air receiver.

The tooth thickness of a gear is 0.5 inch and its circular pitch is 1.0 inch. Calculate the dedendum of the gear.

A hollow shaft has an inner diameter of 0.035 m and an outer diameter of 0.06 m. Compute for the torque if the shear stress is not to exceed 120 Mpa in Nm.

What modulus of elasticity in tension is required to obtain a unit deformation of 0.00105 m/m from a load producing a unit ensile stress of 44,000 psi?

Compute the pitch angle of a bevel gear given the pinion’s number of teeth of 14 and 42 teeth on the gear

Compute for the tooth thickness of 141⁄2° spur gear with diametral pitch = 5.

If the ultimate shear strength of a steel plate is 42,000 lb/in2, what force is necessary to punch a 0.75 inch diameter hole in a 0.625 inch thick plate?

steel tie rod on bridge must be made to withstand a pull of 5000 lbs. Find the diameter of the rod assuming a factor of safety of 5 and ultimate stress of 64,000 lb/in2.

If the weight of 6” diameter by 48” long SAE 1030 shafting is 174.5 kg., then what will be the weight of chromium SAE 51416 of same size?

Compute the circular pitch (in inch) of a pair of gears having a ratio of 4 and a center distance of 10.23. Each gear has 72 teeth and pinion has 18 teeth.

A journal bearing with diameter of 76.2 mm is subjected to aload of 4900 N while rotating at 200 rpm. If its coefficient of friction is 0.02 and L/D = 2.5, find its projected area in mm2.

A flywheel rotates at 120 rpm or 12.57 rad/sec slowed down to 102 rpm or 10.68 rad/sec during the punching operation that requires 3⁄4 second of the punching portion of the cycle. Compute the angular acceleration of the flywheel in rad/sec2

A drop hammer of 1 ton dead weight capacity is propelled downward by a 12 in. diameter cylinder. At 100 psi air pressure, what is the impact velocity if the stroke is 28 inches.

Compute the nominal shear stress at the surface in MPa for a 40 mm diameter shaft that transmits 750 KW at 1500 rpm. Axial and bending loads are assumed negligible. Torsional shearing stress is 28 N/mm2.

A truck skids to a stop 60 m after the application of the brakes while traveling at 90 km/hr. What is the acceleration in m/sec2?

A spur pinion rotates at 1800 rpm and transmits to a mating gear 30 HP. The pitch diameter is 4” and the pressure angle is 141⁄2. Determine the tangential load in lbs.

A high alloy spring having squared and ground ends and has a total of 16 coils and modulus of elasticity in shear of 85 GPa. Compute the Wahl factor. The spring outside diameter is 9.66 cm and wire diameter is 0.65 cm.

Compute the lineshaft diameter to transmit 12 HP at 180 rpm with torsional deflection of 0.08 degrees per ft. length.

Calculate the rpm for machining a cast iron workpiece 6 inches in diameter. The lowest cutting speed for cast iron is 50 rpm.

A helical gear having a 141⁄2° normal pressure angle and transverse diametral pitch of 2.3622 per cm. The helix angle is at 45° and has 8 teeth. Compute the transverse pressure angle in degrees.

Compute the maximum unit shear in a 3 inch diameter steel shafting that transmits 24000 in lb. Torque at 99 rpm.

To facilitate the milling (roughing) work of a cast steel material using a 11⁄2 inch diameter cutter choose between the two available stock. Find the speed of the cutter in rpm. - high speed steel cutter with a cutting speed of 50 rpm - carbide tipped cutter with a cutting speed of 200 fpm

A lineshaft runs at 360 rpm. A 18” pulley on the same shaft is belt connected to a 12” pulley on the countershaft. From a 15” pulley on the countershaft, motion is transmitted to the machine. Compute/check the required diameter of the pulley on the machine to give a spindle speed of 660 rpm.

Two parallel shafts connected by pure rolling turn in the same direction having a speed ration of 2.75. What is the distance of the two shafts if the smaller cylinder is 22 cm in diameter?

Determine the torque received by the motor shaft running at 4,250 rpm, transmitting 11Hp through a 10 in. diameter 20° involute gear. The shaft is supported by ball bearings at both ends and the gear is fixed at the middle 8” shaft length.

drop hammer of 1 ton dead weight capacity is propelled downward by a 12 in. diameter cylinder. At 100 psi air pressure, what is theimpact velocity if the stroke is 28 inces?

Compute for the torsional deflection in degrees of a 110 mm diameter, 1.4 m long shaft subjected to twist moment of 3 x 106 N-mm. The torsional modulus of elasticity is 83000 N/mm2

Find the torsional moment (in Newton-mm) developed when the shaft delivers 20 kw at 200 rpm.

Determine the load in KN on a 25mm diameter x 1200 mm long steel shaft if its maximum elongation exceeds 1 mm.

Find the thickness of a metal needed is the semi-spherical end of cylindrical vessel 0.70 meter in diameter subjected to an internal pressure of 2.7 N/mm2. The material is mild carbon steel and tensile stress is 69 N/mm2.

A 102 mm diameter shaft is driven at 3000 rpm by 300 HP prime mover. The shaft drives a 121 cm diameter chain sprocket having 85% output efficiency. Compute the torque n in-lb develop in the shaft.

Determine the average time to cut by automatic oxy-acetylene (machine) crosswise a 4 ft x 8 ft. x 4 in thick steel plate. (Oxy acetylene cutting speed = 9 inches per minute).

Computes for the induced/compressive stress, in Kpa, of a steel solid shafting of 50 mm diameter and 800 mm in length that is subjected to an increase of temperature by 80 deg. C. Use k for steel = 0.0000119 m/m-°C. (E=30,000,000 psi = 206,768 Mpa).

A mass weighing 56 lbs. Rests on horizontal surface. The force needed to move along the surface is 20 lbs. Determine the coefficient of friction.

Determine the time in seconds, to saw a rectangular magnesium bar 5 in. wide and 2 in. thick if the length of cut is 5 in. The power hacksaw does 120 strokes/min and the feed/stroke is 0.127 mm.

A car travels with an initial velocity of 10 m/sec or 36 km/hr. If it is decelerating at a rate of 3 m/sec-sec, how far, in meters, does it travel before stopping?

Compute for the twisting moment in in-lb developed when the shaft delviers 20 Hp at 1200 rpm.

In an Oxy-Acetylene manual welding method, to weld a 31⁄2 ft. long seam in a 0.375” thick steel plate at a consumption rate of 9 cu.ft/ft/ for oxygen and 7 cu.ft./ft for acetylene. Compute for the total combined gas consumption in cu.ft.

Compute for the load in KN on a 3 cm diameter, 100 cm long steel rod if its maximum elongation exceed 0.12 cm.

A baseball is thrown straight upward with a velocity of 20 m/s. Compute for the time elapsed for the baseball to return. Assume for a zero drag.

Compute for the polar section modulus of an SAE 1060 shafting having a diameter of 3 inches. Use a factor of safety of 2 and design stress at 8000 psi.

Compute the working strength of a bolt having a diameter of 11⁄2 inch under a tensile stress of 8000 psi.

Determine the diameter in inches of a steel countershaft that delivers 13.31 hp at a speed of 15.7 rad/sec, the allowable material shear stress is 8.5 ksi.

An elevator that moves upward carrying 10 persons with a total weight of 1500 lbs up to the 3rd floor with the height of 30 ft in 20 seconds. What is the power in hp of the motor driving the elevator?

What angle should the road be banked to prevent a car to skid when traveling at 25 m/s at a radius of 200m?

How long, in minutes, to drill a hole of 5 inches thick. The conical height of the drill is 1⁄2 in, feed is 0.001 in/rev, and the speed of the drill is 100 rpm.

Compute for the torsional deflection in degrees of a 3 5/8 inches diameter, 1.2 m long shaft subjected to a twist moment of 3 x 106 N-mm. The torsional modulus of elasticity is 80,000 Mpa.

Compute the tooth thickness of 141⁄2 degree spur gear with diametral pitch of 7

Determine the working strength of a 1.25 in bolt/screwed up tightly with a tensile stress of 8000 psi.

Determine the displacement, in meter, of a jeepney skidding in asphalt road with a velocity of 30 m/s before it stops when the stopping period is 4 sec.

If the weight of 6” diameter by 48” long SAE 1030 shafting is 174.5 kg, then what will be the weight of chromium SAE 51416 of same size?

Find the tooth thickness of a gear with diametral pitch of 4.

Find the power in watts transmitted by a main power transmitting shaft with diameter of 53 mm and speed of 200 mm.

Find the polar moment of inertia of a square 31⁄2” by 31⁄2”.

Find the shearing stress of a rectangular steel tank with dimensions L = 800 mm, W = 100mm, H = 400 MM. A force 2000 kN is applied at the edge of the which is welded at the bottom.

Find the working pressure required to punch 4” diameter hole on 1⁄4” thick steel plate.

Compute the diameter (in inches) of a SAE 1030 steel shaft to transmit 12 hp at 120 rpm with torsional deflection below 0.08 degree/foot length as required.

Find the center distance between gears with 50 teeth and 25 teeth if the diametral pitch is 5.

Find the tooth thickness of a gear given diametral pitch of 5.

Compute for the load in kN on a 3 cm diameter, 100 cm long steel rod if its maximum elongation exceed 0.12 cm

Find the polar section modulus of a hollow shaft with OD = 6” and ID = 3”

Calculate the elongation of a solid steel shaft of SAE 1030 carbon steel 2 7/8 inches in diameter by 5 feet in length supporting a direct tension load of 60,000 lbs. The factor of safety is set at 4, stress concentration factor k – 1 and yield strength of 40,000 psi.

. A hollow shaft has an inner diameter of 0.035 m and outer diameter of 0.06 m. Determine the polar moment of inertia of the hollow shaft.