84401. The addition of magnesium to cast iron increases its
84402. A work can be completed by 24 men in 17 days.To complete the work in 12 days,the number of additional men required is:
84403. The slow cooling of steel from the __________ results in a coarse grained structure.
84404. Which one of the following sets of constituents is expected in equilibrium cooling of a hyper-eutectoid steel from austenitic state?
84405. A steel with 0.8% carbon and 100% pearlite is called
84406. 18/8 stainless steel consists of
84407. Vanadium when added to steel
84408. The limestone in the charge of a blast furnace decomposes to give lime and carbon dioxide. The lime thus obtained
84409. During the operation of a bessemer converter, the white flame indicates that the silicon and managenese had burnt and carbon has started oxidising.
84410. Specify the sequence correctly
84411. Thermoplastic materials are those materials which
84412. Which of the following material has maximum ductility?
84413. An eutectoid steel consists of
84414. Shock resisting steels should have
84415. A deposits an amount Rs.30,000 to obtain a simple interest at the rate of 12% per year for three years.What total amount will A get at the end of 3 years?
84416. 3/64 is what part of 1/16?
84417. If the fractions 5/14,6/11,7/9,8/13 and 9/10 are arranged in ascending order of their values,which one will be the fourth?
84418. The ratio between ages of A and B is 2:3 and that between B and C is 1:2 if the sum of the ages of three is 110 years,how old is C?
84419. On selling an article for Rs.300 there is a gain of 11 1/9%.What is its cost price?
84420. The velocity ratio in case of an inclined plane inclined at angle θ to the horizontal and weight being pulled up the inclined plane by vertical effort is
84421. The range of projectile on a downward inclined plane is __________ the range on upward inclined plane for the same velocity of projection and angle of projection.
84422. The angle of inclination of a vehicle when moving along a circular path __________ upon its mass.
84423. A body of weight W is required to move up on rough inclined plane whose angle of inclination with the horizontal is α. The effort applied parallel to the plane is given by(where μ = tanφ = Coefficient of friction between the plane and the body.)
84424. If the resultant of two equal forces has the same magnitude as either of the forces, then the angle between the two forces is
84425. A smooth cylinder lying on its convex surface remains in __________ equilibrium.
84426. Coefficient of friction is the ratio of the limiting friction to the normal reaction between the two bodies.
84427. Moment of inertia of a circular section about an axis perpendicular to the section is
84428. The unit of angular acceleration is
84429. Moment of inertia of a triangular section of base (b) and height (h) about an axis passing through its C.G. and parallel to the base, is
84430. If the masses of both the bodies, as shown in the below figure, are reduced to 50 percent, then tension in the string will be
84431. Which of the following is an equation of linear motion?(where, u and v = Initial and final velocity of the body, a = Acceleration of the body, and s = Displacement of the body in time t seconds.)
84432. If a number of forces are acting at a point, theirresultant will be inclined at an angle θ with the horizontal, such that
84433. The above figure shows the two equal forces at right angles acting at a point. The value of force R acting along their bisector and in opposite direction is
84434. The force required to move the body up the plane will be minimum if it makes an angle with the inclined plane __________ the angle of friction.
84435. In the shown figure, if the angle of inclination of the plane is increased, then acceleration of the system will
84436. The total time taken by a projectile to reach maximum height and to return back to the ground, is known as time of flight.
84437. The range of a projectile is maximum, when the angle of projection is
84438. The mechanical advantage of a lifting machine is the ratio of
84439. Static friction is always __________ dynamic friction.
84440. A body will begin to move down an inclined plane if the angle of inclination of the plane is __________ the angle of friction.
84441. When a particle moves along a circular path with uniform velocity, there will be no tangential acceleration.
84442. The bodies which rebound after impact are called
84443. The maximum frictional force, which comes into play, when a body just begins to slide over the surface of the other body, is known as
84444. The centre of gravity of an equilateral triangle with each side a, is __________ from any of the three sides.
84445. The distance, between the point of projection and the point where the projectile strikes the ground, is known as range.
84446. The algebraic sum of the resolved parts of a number of forces in a given direction is equal to the resolved part of their resultant in the same direction. This is known as
84447. The triangle law of forces states that if two forces acting simultaneously on a particle, be represented in magnitude and direction by the two sides of a triangle taken in order, then their resultant may be represented in magnitude and direction by the third side of a triangle, taken in opposite order.
84448. The angle between two forces when the resultant is maximum and minimum respectively are
84449. The path of the projectile is a parabola.
84450. A redundant frame is also called __________ frame.
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