291. A sliding bearing in which although lubricant is present, the working surfaces __________ contact each other at least part of the time, is called boundary lubricated bearing. partially fully ✅ The correct answer is option A.
292. In a band and block brake, the ratio of tensions on the tight and slack sides of band is given by (where μ = Coefficient of friction between the blocks and the drum, θ = Semi-angle of each block subtending at the centre of drum, and n = Number of blocks) ✅ The correct answer is option D.
293. The centrifugal tension in the belt increases the power transmitted decreases the power transmitted has no effect on the power transmitted is equal to maximum te ✅ The correct answer is option C.
294. When two non-intersecting and non-coplaner shafts are connected by gears, the arrangement is known as spur gearing helical gearing bevel gearing spiral gearing ✅ The correct answer is option D.
295. The ratio of pitch circle diameter in millimetres to the number of teeth, is called circular pitch diametral pitch module none of these ✅ The correct answer is option C.
296. When the effort is in between the fulcrum and load, the lever is said to be of third type. Correct Incorrect ✅ The correct answer is option A.
297. The stretching in a belt can be controlled by __________ the stress in the belt. reducing increasing ✅ The correct answer is option A.
298. When a cylinder is subjected to a very high internal fluid pressure, the thin cylinder should be used. Correct Incorrect ✅ The correct answer is option B.
299. When a beam of rectangular cross-section of width b and depth d, is subjected to a shear force F, the maximum shear stress induced will be ✅ The correct answer is option B.
300. The shear modulus of resilience is proportional to shear stress (shear stress)2 (shear stress)3 (shear stress)4 ✅ The correct answer is option B.