Q. The mean time to repair (MTTR) for a repairable system is 30 minutes. When maintenance time changes from 20 minutes to 40 minutes, the net increase in maintainability is closest to (A) 0.15 (B) 0.25 (C) 0.45 (D) 0.60 Ans: 0.25 Sol:
The mean time to repair (MTTR) for a repairable system is 30 minutes Read More »
Q. A 100 mm long cylindrical workpiece of diameter 50 mm is reduced to 25 mm diameter using extrusion process. The flow curve for the metal has strength coefficient as K = 750 MPa and the strain hardening co-efficient is 0.15. Assuming no friction and no redundant work, the required ram pressure (in MPa) is
Q. In a sine bar, let h denote height of slip gauge and l be the distance between the rollers. The relationship between error in angular measurement ( dq ) and errors in the slip gauge combination ( dh ) and in the spacing of the rollers ( dl ) is Ans: Sol: h =
Which of the following are not polymeric? Option 1 : ProteinsOption 2 : PolysaccharidesOption 3 : LipidsOption 4 : Nucleic acids
Myelin sheath is produced by Option 1 : Astrocytes and Schwann cellsOption 2 : Schwann cells and oligodendrocytesOption 3 : Osteoclasts and astrocytesOption 4 : Oligodendrocytes and osteoclasts
Q. True centrifugal casting process in horizontal configuration is to be used for casting a metallic cylinder with outside diameter 0.275 m and inside diameter 0.250 m. If G-factor (ratio of centrifugal force experienced by the rotating cast metal to its weight) is 65 and acceleration due to gravity is 9.8 m/s2, the minimum rotational
The region of biosphere reserve which is legally protected and where no human activity is allowed is known as Option 1 : Core zoneOption 2 : Buffer zoneOption 3 : Transition zoneOption 4 : Restoration zone
Q. A uniform cantilever beam ABC of length L is subjected to a point load P at point B and a concentrated moment M at point C (as shown in figure). Let E be the Young’s modulus of the beam material and I be the area moment of inertia of the beam’s cross-section. Assuming the
During DNA replication, Okazaki fragments are used to elongate Option 1 : The lagging strand towards replication fork.Option 2 : The leading strand away from replication fork.Option 3 : The leading strand towards replication fork.Option 4 : The lagging strand away from the replication fork.
During DNA replication, Okazaki fragments are used to elongate Read More »
Which of the following components provides sticky character to the bacterial cell? Option 1 : Nuclear membraneOption 2 : Plasma membraneOption 3 : GlycocalyxOption 4 : Cell wall
Which of the following components provides sticky character to the bacterial cell? Read More »
