When using a step ladder, never stand on the _____________________.

A. top step
B. top cap
C. horizontal bars on the back of the ladder
D. a, b, and c


Answer: D

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Technician A says that an ABS ECU reads the frequency produced by a wheel speed sensor and interprets it as wheel speed. Technician B says that the basis of hydraulic ABS is that hydraulic pressure to the brakes over one wheel is relieved when a lockup condition is sensed. Who is correct?

A. Technician A B. Technician B C. Both A and B D. Neither A nor B

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(a) Draw the influence line for the positive moment at B (Figure P12.53). (b) If the beam carries a uniformly distributed live load of 2 kips/ft that can act on all or part of each span as well as a concentrated live load of 20 kips that can act anywhere, compute the maximum moment at B. (c) Determine the maximum value of live load moment at B produced by the set of wheel loads.

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What is meant by bidirectional tunneling? Why do you need HA–FA in addition to the HLR–VLR pair? Explain clearly.

What will be an ideal response?

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What chemical family is the basic building block for most modern refrigerants?

What will be an ideal response?

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