General Aptitude Quiz for Mechanical Engineering

22 Questions

He did not manage to fix the car himself, so he _______ in the garage.

got it fixed

Match the following analogy: Planting : Seed : : Raising : _____

Child = By word meaning Temperature = By word meaning Height = By word meaning Lift = By word meaning

What is the percentage of higher education institutions that fall into Grade III?

22.7%

How many times do the minute-hand and second-hand of a clock cross each other?

15 times

What is the work done by the piston on the atmosphere during the process described?

$(P_2 L_2 - P_1 L_1) A / (1 - \gamma)$

What is the view-factor $F_{S-S}$ for the given cylindrical rod inside a cubic enclosure?

$(\pi d h + \frac{\pi d^2}{2}) / 6L^2$

What is the value of shear strain rate at the shear zone in the ideal orthogonal cutting experiment?

1.30 × 10^4 s^-1

How many controllable locations can the table be positioned on the linear axis of the CNC machine?

5000

Which statement regarding the stress and movement of bars P and Q after heating is correct?

The interface between P and Q moves to the right after heating

The elastic strain energy stored in the bar equals _________ J. (Rounded off to two decimal places)

0.68

The power transmitted by the shaft at this speed is _______ kW. (Rounded off to two decimal places)

5.44

If the mass of gas-X in the container is 2 kg, then the mass of gas-Y in the container is ____ kg. (Rounded off to one decimal place)

18.0

The pressure at the location (2 m, 2 m) is _____________ kPa. (Answer in integer)

The value of 𝑢(2, 1) is ______________. (Rounded off to two decimal places)

1.22

The moment per unit width about the base of the hinge is ____________ kNm/m. (Rounded off to one decimal place)

49.0

The value of exponent a is ___________. (Rounded off to one decimal place)

1.0

The Nusselt number for this flow depends on

the Reynolds number but not the Prandtl number

Which one of the combinations of [𝑄 H, 𝑄 L and 𝑊] given is allowed?

𝑄 H = 2000 J, 𝑄 L = 750 J, 𝑊 = 1250 J

Two surfaces P and Q are to be joined together. In which of the given joining operation(s), there is no melting of the two surfaces P and Q for creating the joint?

Adhesive bonding

A beam is undergoing pure bending as shown in the figure. The stress (𝜎)-strain (𝜀) curve for the material is also given. The yield stress of the material is 𝜎𝑌. Which of the option(s) given represent(s) the bending stress distribution at cross-section AA after plastic yielding?

Option B

In a metal casting process to manufacture parts, both patterns and moulds provide shape by dictating where the material should or should not go. Which of the option(s) given correctly describe(s) the mould and the pattern?

Pattern walls indicate boundaries within which the molten part material is allowed, while mould walls indicate boundaries of regions where mould material is not allowed.

The principal stresses at a point P in a solid are 70 MPa, −70 MPa and 0. The yield stress of the material is 100 MPa. Which prediction(s) about material failure at P is/are CORRECT?

Maximum normal stress theory predicts that the material does not fail

Study Notes