Determine, with proof, which of the following languages are undecidable. That is, for a undecidable language, present a proof via Turing reduction of its undecidability, and for adecidable language, exhibit a decider for that language.(a)LALTERNATE={x: neither 00 nor 11 is a substring ofx}(b)LEVEN={〈M〉:|L(M)|is even}(c)L376−HALT={(〈M〉, x) :Mhalts onxin|x|376steps}(d)LQUICK−HALT={〈M 〉: There is an input such that halts on within|w|steps}Hint: See hint in Question 1

Afour cylinder four-stroke in-line engine has a stroke of 160mm, connecting rod length of 150mm, a reciprocating mass of 3kg and its firing order is 1-3-4-2. the spacing between cylinders is 100mm. i. show that the engine is in balance with regard to the primary inertia forces and primary 3. a and secondary inertia couples. li determine the out of balance secondary inertia force ii. propose ways of balancing this out of balance force and discuss the challenges that will arise

An ideal otto cycle with air as the working fluid has a compression ratio of 8. the minimum and maximum temperatures in the cycle are 300 k and 1340 k. use constant specific heats at room temperature to determine (a) the amount of heat transferred to the air during the heat- addition kj/kg, (b) the thermal efficiency, and (c) the thermal efficiency of a carnot cycle ope limits. process, in rating between the same temperature

What are the two (02) benefits, which may result from a successful implementation of preventive maintenance (pm) program in an organization? (clo3)a)- lean manufacturing b)-overlapping responsibilities c)-the planner is not qualified d)-accurate contractor information e)-reduction in equipment redundancies f)-accurate stores information